diff options
| -rw-r--r-- | app/views/public_body/statistics.html.erb | 2 | ||||
| -rw-r--r-- | public/javascripts/jquery.flot.errorbars.js | 353 | ||||
| -rw-r--r-- | public/javascripts/jquery.flot.errorbars.min.js | 63 | ||||
| -rw-r--r-- | public/javascripts/jquery.flot.js | 3078 | ||||
| -rw-r--r-- | public/javascripts/jquery.flot.min.js | 29 |
5 files changed, 3432 insertions, 93 deletions
diff --git a/app/views/public_body/statistics.html.erb b/app/views/public_body/statistics.html.erb index 840af0c10..a76049400 100644 --- a/app/views/public_body/statistics.html.erb +++ b/app/views/public_body/statistics.html.erb @@ -70,6 +70,6 @@ are due to him.") %></p> var graphs_data = <%= @graph_list.to_json.html_safe %>; </script> <!--[if lte IE 8]><%= javascript_include_tag 'excanvas.min.js' %><![endif]--> -<%= javascript_include_tag 'jquery.flot.min.js', 'jquery.flot.errorbars.min.js', 'jquery.flot.axislabels.js', 'stats-graphs.js' %> +<%= javascript_include_tag 'jquery.flot.js', 'jquery.flot.errorbars.js', 'jquery.flot.axislabels.js', 'stats-graphs.js' %> </div> diff --git a/public/javascripts/jquery.flot.errorbars.js b/public/javascripts/jquery.flot.errorbars.js new file mode 100644 index 000000000..729843678 --- /dev/null +++ b/public/javascripts/jquery.flot.errorbars.js @@ -0,0 +1,353 @@ +/* Flot plugin for plotting error bars. + +Copyright (c) 2007-2013 IOLA and Ole Laursen. +Licensed under the MIT license. + +Error bars are used to show standard deviation and other statistical +properties in a plot. + +* Created by Rui Pereira - rui (dot) pereira (at) gmail (dot) com + +This plugin allows you to plot error-bars over points. Set "errorbars" inside +the points series to the axis name over which there will be error values in +your data array (*even* if you do not intend to plot them later, by setting +"show: null" on xerr/yerr). + +The plugin supports these options: + + series: { + points: { + errorbars: "x" or "y" or "xy", + xerr: { + show: null/false or true, + asymmetric: null/false or true, + upperCap: null or "-" or function, + lowerCap: null or "-" or function, + color: null or color, + radius: null or number + }, + yerr: { same options as xerr } + } + } + +Each data point array is expected to be of the type: + + "x" [ x, y, xerr ] + "y" [ x, y, yerr ] + "xy" [ x, y, xerr, yerr ] + +Where xerr becomes xerr_lower,xerr_upper for the asymmetric error case, and +equivalently for yerr. Eg., a datapoint for the "xy" case with symmetric +error-bars on X and asymmetric on Y would be: + + [ x, y, xerr, yerr_lower, yerr_upper ] + +By default no end caps are drawn. Setting upperCap and/or lowerCap to "-" will +draw a small cap perpendicular to the error bar. They can also be set to a +user-defined drawing function, with (ctx, x, y, radius) as parameters, as eg. + + function drawSemiCircle( ctx, x, y, radius ) { + ctx.beginPath(); + ctx.arc( x, y, radius, 0, Math.PI, false ); + ctx.moveTo( x - radius, y ); + ctx.lineTo( x + radius, y ); + ctx.stroke(); + } + +Color and radius both default to the same ones of the points series if not +set. The independent radius parameter on xerr/yerr is useful for the case when +we may want to add error-bars to a line, without showing the interconnecting +points (with radius: 0), and still showing end caps on the error-bars. +shadowSize and lineWidth are derived as well from the points series. + +*/ + +(function ($) { + var options = { + series: { + points: { + errorbars: null, //should be 'x', 'y' or 'xy' + xerr: { err: 'x', show: null, asymmetric: null, upperCap: null, lowerCap: null, color: null, radius: null}, + yerr: { err: 'y', show: null, asymmetric: null, upperCap: null, lowerCap: null, color: null, radius: null} + } + } + }; + + function processRawData(plot, series, data, datapoints){ + if (!series.points.errorbars) + return; + + // x,y values + var format = [ + { x: true, number: true, required: true }, + { y: true, number: true, required: true } + ]; + + var errors = series.points.errorbars; + // error bars - first X then Y + if (errors == 'x' || errors == 'xy') { + // lower / upper error + if (series.points.xerr.asymmetric) { + format.push({ x: true, number: true, required: true }); + format.push({ x: true, number: true, required: true }); + } else + format.push({ x: true, number: true, required: true }); + } + if (errors == 'y' || errors == 'xy') { + // lower / upper error + if (series.points.yerr.asymmetric) { + format.push({ y: true, number: true, required: true }); + format.push({ y: true, number: true, required: true }); + } else + format.push({ y: true, number: true, required: true }); + } + datapoints.format = format; + } + + function parseErrors(series, i){ + + var points = series.datapoints.points; + + // read errors from points array + var exl = null, + exu = null, + eyl = null, + eyu = null; + var xerr = series.points.xerr, + yerr = series.points.yerr; + + var eb = series.points.errorbars; + // error bars - first X + if (eb == 'x' || eb == 'xy') { + if (xerr.asymmetric) { + exl = points[i + 2]; + exu = points[i + 3]; + if (eb == 'xy') + if (yerr.asymmetric){ + eyl = points[i + 4]; + eyu = points[i + 5]; + } else eyl = points[i + 4]; + } else { + exl = points[i + 2]; + if (eb == 'xy') + if (yerr.asymmetric) { + eyl = points[i + 3]; + eyu = points[i + 4]; + } else eyl = points[i + 3]; + } + // only Y + } else if (eb == 'y') + if (yerr.asymmetric) { + eyl = points[i + 2]; + eyu = points[i + 3]; + } else eyl = points[i + 2]; + + // symmetric errors? + if (exu == null) exu = exl; + if (eyu == null) eyu = eyl; + + var errRanges = [exl, exu, eyl, eyu]; + // nullify if not showing + if (!xerr.show){ + errRanges[0] = null; + errRanges[1] = null; + } + if (!yerr.show){ + errRanges[2] = null; + errRanges[3] = null; + } + return errRanges; + } + + function drawSeriesErrors(plot, ctx, s){ + + var points = s.datapoints.points, + ps = s.datapoints.pointsize, + ax = [s.xaxis, s.yaxis], + radius = s.points.radius, + err = [s.points.xerr, s.points.yerr]; + + //sanity check, in case some inverted axis hack is applied to flot + var invertX = false; + if (ax[0].p2c(ax[0].max) < ax[0].p2c(ax[0].min)) { + invertX = true; + var tmp = err[0].lowerCap; + err[0].lowerCap = err[0].upperCap; + err[0].upperCap = tmp; + } + + var invertY = false; + if (ax[1].p2c(ax[1].min) < ax[1].p2c(ax[1].max)) { + invertY = true; + var tmp = err[1].lowerCap; + err[1].lowerCap = err[1].upperCap; + err[1].upperCap = tmp; + } + + for (var i = 0; i < s.datapoints.points.length; i += ps) { + + //parse + var errRanges = parseErrors(s, i); + + //cycle xerr & yerr + for (var e = 0; e < err.length; e++){ + + var minmax = [ax[e].min, ax[e].max]; + + //draw this error? + if (errRanges[e * err.length]){ + + //data coordinates + var x = points[i], + y = points[i + 1]; + + //errorbar ranges + var upper = [x, y][e] + errRanges[e * err.length + 1], + lower = [x, y][e] - errRanges[e * err.length]; + + //points outside of the canvas + if (err[e].err == 'x') + if (y > ax[1].max || y < ax[1].min || upper < ax[0].min || lower > ax[0].max) + continue; + if (err[e].err == 'y') + if (x > ax[0].max || x < ax[0].min || upper < ax[1].min || lower > ax[1].max) + continue; + + // prevent errorbars getting out of the canvas + var drawUpper = true, + drawLower = true; + + if (upper > minmax[1]) { + drawUpper = false; + upper = minmax[1]; + } + if (lower < minmax[0]) { + drawLower = false; + lower = minmax[0]; + } + + //sanity check, in case some inverted axis hack is applied to flot + if ((err[e].err == 'x' && invertX) || (err[e].err == 'y' && invertY)) { + //swap coordinates + var tmp = lower; + lower = upper; + upper = tmp; + tmp = drawLower; + drawLower = drawUpper; + drawUpper = tmp; + tmp = minmax[0]; + minmax[0] = minmax[1]; + minmax[1] = tmp; + } + + // convert to pixels + x = ax[0].p2c(x), + y = ax[1].p2c(y), + upper = ax[e].p2c(upper); + lower = ax[e].p2c(lower); + minmax[0] = ax[e].p2c(minmax[0]); + minmax[1] = ax[e].p2c(minmax[1]); + + //same style as points by default + var lw = err[e].lineWidth ? err[e].lineWidth : s.points.lineWidth, + sw = s.points.shadowSize != null ? s.points.shadowSize : s.shadowSize; + + //shadow as for points + if (lw > 0 && sw > 0) { + var w = sw / 2; + ctx.lineWidth = w; + ctx.strokeStyle = "rgba(0,0,0,0.1)"; + drawError(ctx, err[e], x, y, upper, lower, drawUpper, drawLower, radius, w + w/2, minmax); + + ctx.strokeStyle = "rgba(0,0,0,0.2)"; + drawError(ctx, err[e], x, y, upper, lower, drawUpper, drawLower, radius, w/2, minmax); + } + + ctx.strokeStyle = err[e].color? err[e].color: s.color; + ctx.lineWidth = lw; + //draw it + drawError(ctx, err[e], x, y, upper, lower, drawUpper, drawLower, radius, 0, minmax); + } + } + } + } + + function drawError(ctx,err,x,y,upper,lower,drawUpper,drawLower,radius,offset,minmax){ + + //shadow offset + y += offset; + upper += offset; + lower += offset; + + // error bar - avoid plotting over circles + if (err.err == 'x'){ + if (upper > x + radius) drawPath(ctx, [[upper,y],[Math.max(x + radius,minmax[0]),y]]); + else drawUpper = false; + if (lower < x - radius) drawPath(ctx, [[Math.min(x - radius,minmax[1]),y],[lower,y]] ); + else drawLower = false; + } + else { + if (upper < y - radius) drawPath(ctx, [[x,upper],[x,Math.min(y - radius,minmax[0])]] ); + else drawUpper = false; + if (lower > y + radius) drawPath(ctx, [[x,Math.max(y + radius,minmax[1])],[x,lower]] ); + else drawLower = false; + } + + //internal radius value in errorbar, allows to plot radius 0 points and still keep proper sized caps + //this is a way to get errorbars on lines without visible connecting dots + radius = err.radius != null? err.radius: radius; + + // upper cap + if (drawUpper) { + if (err.upperCap == '-'){ + if (err.err=='x') drawPath(ctx, [[upper,y - radius],[upper,y + radius]] ); + else drawPath(ctx, [[x - radius,upper],[x + radius,upper]] ); + } else if ($.isFunction(err.upperCap)){ + if (err.err=='x') err.upperCap(ctx, upper, y, radius); + else err.upperCap(ctx, x, upper, radius); + } + } + // lower cap + if (drawLower) { + if (err.lowerCap == '-'){ + if (err.err=='x') drawPath(ctx, [[lower,y - radius],[lower,y + radius]] ); + else drawPath(ctx, [[x - radius,lower],[x + radius,lower]] ); + } else if ($.isFunction(err.lowerCap)){ + if (err.err=='x') err.lowerCap(ctx, lower, y, radius); + else err.lowerCap(ctx, x, lower, radius); + } + } + } + + function drawPath(ctx, pts){ + ctx.beginPath(); + ctx.moveTo(pts[0][0], pts[0][1]); + for (var p=1; p < pts.length; p++) + ctx.lineTo(pts[p][0], pts[p][1]); + ctx.stroke(); + } + + function draw(plot, ctx){ + var plotOffset = plot.getPlotOffset(); + + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + $.each(plot.getData(), function (i, s) { + if (s.points.errorbars && (s.points.xerr.show || s.points.yerr.show)) + drawSeriesErrors(plot, ctx, s); + }); + ctx.restore(); + } + + function init(plot) { + plot.hooks.processRawData.push(processRawData); + plot.hooks.draw.push(draw); + } + + $.plot.plugins.push({ + init: init, + options: options, + name: 'errorbars', + version: '1.0' + }); +})(jQuery); diff --git a/public/javascripts/jquery.flot.errorbars.min.js b/public/javascripts/jquery.flot.errorbars.min.js deleted file mode 100644 index 72d7e3dc7..000000000 --- a/public/javascripts/jquery.flot.errorbars.min.js +++ /dev/null @@ -1,63 +0,0 @@ -/* Flot plugin for plotting error bars. - -Copyright (c) 2007-2013 IOLA and Ole Laursen. -Licensed under the MIT license. - -Error bars are used to show standard deviation and other statistical -properties in a plot. - -* Created by Rui Pereira - rui (dot) pereira (at) gmail (dot) com - -This plugin allows you to plot error-bars over points. Set "errorbars" inside -the points series to the axis name over which there will be error values in -your data array (*even* if you do not intend to plot them later, by setting -"show: null" on xerr/yerr). - -The plugin supports these options: - - series: { - points: { - errorbars: "x" or "y" or "xy", - xerr: { - show: null/false or true, - asymmetric: null/false or true, - upperCap: null or "-" or function, - lowerCap: null or "-" or function, - color: null or color, - radius: null or number - }, - yerr: { same options as xerr } - } - } - -Each data point array is expected to be of the type: - - "x" [ x, y, xerr ] - "y" [ x, y, yerr ] - "xy" [ x, y, xerr, yerr ] - -Where xerr becomes xerr_lower,xerr_upper for the asymmetric error case, and -equivalently for yerr. Eg., a datapoint for the "xy" case with symmetric -error-bars on X and asymmetric on Y would be: - - [ x, y, xerr, yerr_lower, yerr_upper ] - -By default no end caps are drawn. Setting upperCap and/or lowerCap to "-" will -draw a small cap perpendicular to the error bar. They can also be set to a -user-defined drawing function, with (ctx, x, y, radius) as parameters, as eg. - - function drawSemiCircle( ctx, x, y, radius ) { - ctx.beginPath(); - ctx.arc( x, y, radius, 0, Math.PI, false ); - ctx.moveTo( x - radius, y ); - ctx.lineTo( x + radius, y ); - ctx.stroke(); - } - -Color and radius both default to the same ones of the points series if not -set. The independent radius parameter on xerr/yerr is useful for the case when -we may want to add error-bars to a line, without showing the interconnecting -points (with radius: 0), and still showing end caps on the error-bars. -shadowSize and lineWidth are derived as well from the points series. - -*/(function(e){function n(e,t,n,r){if(!t.points.errorbars)return;var i=[{x:!0,number:!0,required:!0},{y:!0,number:!0,required:!0}],s=t.points.errorbars;if(s=="x"||s=="xy")t.points.xerr.asymmetric?(i.push({x:!0,number:!0,required:!0}),i.push({x:!0,number:!0,required:!0})):i.push({x:!0,number:!0,required:!0});if(s=="y"||s=="xy")t.points.yerr.asymmetric?(i.push({y:!0,number:!0,required:!0}),i.push({y:!0,number:!0,required:!0})):i.push({y:!0,number:!0,required:!0});r.format=i}function r(e,t){var n=e.datapoints.points,r=null,i=null,s=null,o=null,u=e.points.xerr,a=e.points.yerr,f=e.points.errorbars;f=="x"||f=="xy"?u.asymmetric?(r=n[t+2],i=n[t+3],f=="xy"&&(a.asymmetric?(s=n[t+4],o=n[t+5]):s=n[t+4])):(r=n[t+2],f=="xy"&&(a.asymmetric?(s=n[t+3],o=n[t+4]):s=n[t+3])):f=="y"&&(a.asymmetric?(s=n[t+2],o=n[t+3]):s=n[t+2]),i==null&&(i=r),o==null&&(o=s);var l=[r,i,s,o];return u.show||(l[0]=null,l[1]=null),a.show||(l[2]=null,l[3]=null),l}function i(e,t,n){var i=n.datapoints.points,o=n.datapoints.pointsize,u=[n.xaxis,n.yaxis],a=n.points.radius,f=[n.points.xerr,n.points.yerr],l=!1;if(u[0].p2c(u[0].max)<u[0].p2c(u[0].min)){l=!0;var c=f[0].lowerCap;f[0].lowerCap=f[0].upperCap,f[0].upperCap=c}var h=!1;if(u[1].p2c(u[1].min)<u[1].p2c(u[1].max)){h=!0;var c=f[1].lowerCap;f[1].lowerCap=f[1].upperCap,f[1].upperCap=c}for(var p=0;p<n.datapoints.points.length;p+=o){var d=r(n,p);for(var v=0;v<f.length;v++){var m=[u[v].min,u[v].max];if(d[v*f.length]){var g=i[p],y=i[p+1],b=[g,y][v]+d[v*f.length+1],w=[g,y][v]-d[v*f.length];if(f[v].err=="x")if(y>u[1].max||y<u[1].min||b<u[0].min||w>u[0].max)continue;if(f[v].err=="y")if(g>u[0].max||g<u[0].min||b<u[1].min||w>u[1].max)continue;var E=!0,S=!0;b>m[1]&&(E=!1,b=m[1]),w<m[0]&&(S=!1,w=m[0]);if(f[v].err=="x"&&l||f[v].err=="y"&&h){var c=w;w=b,b=c,c=S,S=E,E=c,c=m[0],m[0]=m[1],m[1]=c}g=u[0].p2c(g),y=u[1].p2c(y),b=u[v].p2c(b),w=u[v].p2c(w),m[0]=u[v].p2c(m[0]),m[1]=u[v].p2c(m[1]);var x=f[v].lineWidth?f[v].lineWidth:n.points.lineWidth,T=n.points.shadowSize!=null?n.points.shadowSize:n.shadowSize;if(x>0&&T>0){var N=T/2;t.lineWidth=N,t.strokeStyle="rgba(0,0,0,0.1)",s(t,f[v],g,y,b,w,E,S,a,N+N/2,m),t.strokeStyle="rgba(0,0,0,0.2)",s(t,f[v],g,y,b,w,E,S,a,N/2,m)}t.strokeStyle=f[v].color?f[v].color:n.color,t.lineWidth=x,s(t,f[v],g,y,b,w,E,S,a,0,m)}}}}function s(t,n,r,i,s,u,a,f,l,c,h){i+=c,s+=c,u+=c,n.err=="x"?(s>r+l?o(t,[[s,i],[Math.max(r+l,h[0]),i]]):a=!1,u<r-l?o(t,[[Math.min(r-l,h[1]),i],[u,i]]):f=!1):(s<i-l?o(t,[[r,s],[r,Math.min(i-l,h[0])]]):a=!1,u>i+l?o(t,[[r,Math.max(i+l,h[1])],[r,u]]):f=!1),l=n.radius!=null?n.radius:l,a&&(n.upperCap=="-"?n.err=="x"?o(t,[[s,i-l],[s,i+l]]):o(t,[[r-l,s],[r+l,s]]):e.isFunction(n.upperCap)&&(n.err=="x"?n.upperCap(t,s,i,l):n.upperCap(t,r,s,l))),f&&(n.lowerCap=="-"?n.err=="x"?o(t,[[u,i-l],[u,i+l]]):o(t,[[r-l,u],[r+l,u]]):e.isFunction(n.lowerCap)&&(n.err=="x"?n.lowerCap(t,u,i,l):n.lowerCap(t,r,u,l)))}function o(e,t){e.beginPath(),e.moveTo(t[0][0],t[0][1]);for(var n=1;n<t.length;n++)e.lineTo(t[n][0],t[n][1]);e.stroke()}function u(t,n){var r=t.getPlotOffset();n.save(),n.translate(r.left,r.top),e.each(t.getData(),function(e,r){r.points.errorbars&&(r.points.xerr.show||r.points.yerr.show)&&i(t,n,r)}),n.restore()}function a(e){e.hooks.processRawData.push(n),e.hooks.draw.push(u)}var t={series:{points:{errorbars:null,xerr:{err:"x",show:null,asymmetric:null,upperCap:null,lowerCap:null,color:null,radius:null},yerr:{err:"y",show:null,asymmetric:null,upperCap:null,lowerCap:null,color:null,radius:null}}}};e.plot.plugins.push({init:a,options:t,name:"errorbars",version:"1.0"})})(jQuery);
\ No newline at end of file diff --git a/public/javascripts/jquery.flot.js b/public/javascripts/jquery.flot.js new file mode 100644 index 000000000..2855d2eb3 --- /dev/null +++ b/public/javascripts/jquery.flot.js @@ -0,0 +1,3078 @@ +/* Javascript plotting library for jQuery, version 0.8.2-alpha. + +Copyright (c) 2007-2013 IOLA and Ole Laursen. +Licensed under the MIT license. + +*/ + +// first an inline dependency, jquery.colorhelpers.js, we inline it here +// for convenience + +/* Plugin for jQuery for working with colors. + * + * Version 1.1. + * + * Inspiration from jQuery color animation plugin by John Resig. + * + * Released under the MIT license by Ole Laursen, October 2009. + * + * Examples: + * + * $.color.parse("#fff").scale('rgb', 0.25).add('a', -0.5).toString() + * var c = $.color.extract($("#mydiv"), 'background-color'); + * console.log(c.r, c.g, c.b, c.a); + * $.color.make(100, 50, 25, 0.4).toString() // returns "rgba(100,50,25,0.4)" + * + * Note that .scale() and .add() return the same modified object + * instead of making a new one. + * + * V. 1.1: Fix error handling so e.g. parsing an empty string does + * produce a color rather than just crashing. + */ +(function(B){B.color={};B.color.make=function(F,E,C,D){var G={};G.r=F||0;G.g=E||0;G.b=C||0;G.a=D!=null?D:1;G.add=function(J,I){for(var H=0;H<J.length;++H){G[J.charAt(H)]+=I}return G.normalize()};G.scale=function(J,I){for(var H=0;H<J.length;++H){G[J.charAt(H)]*=I}return G.normalize()};G.toString=function(){if(G.a>=1){return"rgb("+[G.r,G.g,G.b].join(",")+")"}else{return"rgba("+[G.r,G.g,G.b,G.a].join(",")+")"}};G.normalize=function(){function H(J,K,I){return K<J?J:(K>I?I:K)}G.r=H(0,parseInt(G.r),255);G.g=H(0,parseInt(G.g),255);G.b=H(0,parseInt(G.b),255);G.a=H(0,G.a,1);return G};G.clone=function(){return B.color.make(G.r,G.b,G.g,G.a)};return G.normalize()};B.color.extract=function(D,C){var E;do{E=D.css(C).toLowerCase();if(E!=""&&E!="transparent"){break}D=D.parent()}while(!B.nodeName(D.get(0),"body"));if(E=="rgba(0, 0, 0, 0)"){E="transparent"}return B.color.parse(E)};B.color.parse=function(F){var E,C=B.color.make;if(E=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(F)){return C(parseInt(E[1],10),parseInt(E[2],10),parseInt(E[3],10))}if(E=/rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(F)){return C(parseInt(E[1],10),parseInt(E[2],10),parseInt(E[3],10),parseFloat(E[4]))}if(E=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(F)){return C(parseFloat(E[1])*2.55,parseFloat(E[2])*2.55,parseFloat(E[3])*2.55)}if(E=/rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(F)){return C(parseFloat(E[1])*2.55,parseFloat(E[2])*2.55,parseFloat(E[3])*2.55,parseFloat(E[4]))}if(E=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(F)){return C(parseInt(E[1],16),parseInt(E[2],16),parseInt(E[3],16))}if(E=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(F)){return C(parseInt(E[1]+E[1],16),parseInt(E[2]+E[2],16),parseInt(E[3]+E[3],16))}var D=B.trim(F).toLowerCase();if(D=="transparent"){return C(255,255,255,0)}else{E=A[D]||[0,0,0];return C(E[0],E[1],E[2])}};var A={aqua:[0,255,255],azure:[240,255,255],beige:[245,245,220],black:[0,0,0],blue:[0,0,255],brown:[165,42,42],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgrey:[169,169,169],darkgreen:[0,100,0],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkviolet:[148,0,211],fuchsia:[255,0,255],gold:[255,215,0],green:[0,128,0],indigo:[75,0,130],khaki:[240,230,140],lightblue:[173,216,230],lightcyan:[224,255,255],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightyellow:[255,255,224],lime:[0,255,0],magenta:[255,0,255],maroon:[128,0,0],navy:[0,0,128],olive:[128,128,0],orange:[255,165,0],pink:[255,192,203],purple:[128,0,128],violet:[128,0,128],red:[255,0,0],silver:[192,192,192],white:[255,255,255],yellow:[255,255,0]}})(jQuery); + +// the actual Flot code +(function($) { + + // Cache the prototype hasOwnProperty for faster access + + var hasOwnProperty = Object.prototype.hasOwnProperty; + + /////////////////////////////////////////////////////////////////////////// + // The Canvas object is a wrapper around an HTML5 <canvas> tag. + // + // @constructor + // @param {string} cls List of classes to apply to the canvas. + // @param {element} container Element onto which to append the canvas. + // + // Requiring a container is a little iffy, but unfortunately canvas + // operations don't work unless the canvas is attached to the DOM. + + function Canvas(cls, container) { + + var element = container.children("." + cls)[0]; + + if (element == null) { + + element = document.createElement("canvas"); + element.className = cls; + + $(element).css({ direction: "ltr", position: "absolute", left: 0, top: 0 }) + .appendTo(container); + + // If HTML5 Canvas isn't available, fall back to [Ex|Flash]canvas + + if (!element.getContext) { + if (window.G_vmlCanvasManager) { + element = window.G_vmlCanvasManager.initElement(element); + } else { + throw new Error("Canvas is not available. If you're using IE with a fall-back such as Excanvas, then there's either a mistake in your conditional include, or the page has no DOCTYPE and is rendering in Quirks Mode."); + } + } + } + + this.element = element; + + var context = this.context = element.getContext("2d"); + + // Determine the screen's ratio of physical to device-independent + // pixels. This is the ratio between the canvas width that the browser + // advertises and the number of pixels actually present in that space. + + // The iPhone 4, for example, has a device-independent width of 320px, + // but its screen is actually 640px wide. It therefore has a pixel + // ratio of 2, while most normal devices have a ratio of 1. + + var devicePixelRatio = window.devicePixelRatio || 1, + backingStoreRatio = + context.webkitBackingStorePixelRatio || + context.mozBackingStorePixelRatio || + context.msBackingStorePixelRatio || + context.oBackingStorePixelRatio || + context.backingStorePixelRatio || 1; + + this.pixelRatio = devicePixelRatio / backingStoreRatio; + + // Size the canvas to match the internal dimensions of its container + + this.resize(container.width(), container.height()); + + // Collection of HTML div layers for text overlaid onto the canvas + + this.textContainer = null; + this.text = {}; + + // Cache of text fragments and metrics, so we can avoid expensively + // re-calculating them when the plot is re-rendered in a loop. + + this._textCache = {}; + } + + // Resizes the canvas to the given dimensions. + // + // @param {number} width New width of the canvas, in pixels. + // @param {number} width New height of the canvas, in pixels. + + Canvas.prototype.resize = function(width, height) { + + if (width <= 0 || height <= 0) { + throw new Error("Invalid dimensions for plot, width = " + width + ", height = " + height); + } + + var element = this.element, + context = this.context, + pixelRatio = this.pixelRatio; + + // Resize the canvas, increasing its density based on the display's + // pixel ratio; basically giving it more pixels without increasing the + // size of its element, to take advantage of the fact that retina + // displays have that many more pixels in the same advertised space. + + // Resizing should reset the state (excanvas seems to be buggy though) + + if (this.width != width) { + element.width = width * pixelRatio; + element.style.width = width + "px"; + this.width = width; + } + + if (this.height != height) { + element.height = height * pixelRatio; + element.style.height = height + "px"; + this.height = height; + } + + // Save the context, so we can reset in case we get replotted. The + // restore ensure that we're really back at the initial state, and + // should be safe even if we haven't saved the initial state yet. + + context.restore(); + context.save(); + + // Scale the coordinate space to match the display density; so even though we + // may have twice as many pixels, we still want lines and other drawing to + // appear at the same size; the extra pixels will just make them crisper. + + context.scale(pixelRatio, pixelRatio); + }; + + // Clears the entire canvas area, not including any overlaid HTML text + + Canvas.prototype.clear = function() { + this.context.clearRect(0, 0, this.width, this.height); + }; + + // Finishes rendering the canvas, including managing the text overlay. + + Canvas.prototype.render = function() { + + var cache = this._textCache; + + // For each text layer, add elements marked as active that haven't + // already been rendered, and remove those that are no longer active. + + for (var layerKey in cache) { + if (hasOwnProperty.call(cache, layerKey)) { + + var layer = this.getTextLayer(layerKey), + layerCache = cache[layerKey]; + + layer.hide(); + + for (var styleKey in layerCache) { + if (hasOwnProperty.call(layerCache, styleKey)) { + var styleCache = layerCache[styleKey]; + for (var key in styleCache) { + if (hasOwnProperty.call(styleCache, key)) { + + var positions = styleCache[key].positions; + + for (var i = 0, position; position = positions[i]; i++) { + if (position.active) { + if (!position.rendered) { + layer.append(position.element); + position.rendered = true; + } + } else { + positions.splice(i--, 1); + if (position.rendered) { + position.element.detach(); + } + } + } + + if (positions.length == 0) { + delete styleCache[key]; + } + } + } + } + } + + layer.show(); + } + } + }; + + // Creates (if necessary) and returns the text overlay container. + // + // @param {string} classes String of space-separated CSS classes used to + // uniquely identify the text layer. + // @return {object} The jQuery-wrapped text-layer div. + + Canvas.prototype.getTextLayer = function(classes) { + + var layer = this.text[classes]; + + // Create the text layer if it doesn't exist + + if (layer == null) { + + // Create the text layer container, if it doesn't exist + + if (this.textContainer == null) { + this.textContainer = $("<div class='flot-text'></div>") + .css({ + position: "absolute", + top: 0, + left: 0, + bottom: 0, + right: 0, + 'font-size': "smaller", + color: "#545454" + }) + .insertAfter(this.element); + } + + layer = this.text[classes] = $("<div></div>") + .addClass(classes) + .css({ + position: "absolute", + top: 0, + left: 0, + bottom: 0, + right: 0 + }) + .appendTo(this.textContainer); + } + + return layer; + }; + + // Creates (if necessary) and returns a text info object. + // + // The object looks like this: + // + // { + // width: Width of the text's wrapper div. + // height: Height of the text's wrapper div. + // element: The jQuery-wrapped HTML div containing the text. + // positions: Array of positions at which this text is drawn. + // } + // + // The positions array contains objects that look like this: + // + // { + // active: Flag indicating whether the text should be visible. + // rendered: Flag indicating whether the text is currently visible. + // element: The jQuery-wrapped HTML div containing the text. + // x: X coordinate at which to draw the text. + // y: Y coordinate at which to draw the text. + // } + // + // Each position after the first receives a clone of the original element. + // + // The idea is that that the width, height, and general 'identity' of the + // text is constant no matter where it is placed; the placements are a + // secondary property. + // + // Canvas maintains a cache of recently-used text info objects; getTextInfo + // either returns the cached element or creates a new entry. + // + // @param {string} layer A string of space-separated CSS classes uniquely + // identifying the layer containing this text. + // @param {string} text Text string to retrieve info for. + // @param {(string|object)=} font Either a string of space-separated CSS + // classes or a font-spec object, defining the text's font and style. + // @param {number=} angle Angle at which to rotate the text, in degrees. + // Angle is currently unused, it will be implemented in the future. + // @param {number=} width Maximum width of the text before it wraps. + // @return {object} a text info object. + + Canvas.prototype.getTextInfo = function(layer, text, font, angle, width) { + + var textStyle, layerCache, styleCache, info; + + // Cast the value to a string, in case we were given a number or such + + text = "" + text; + + // If the font is a font-spec object, generate a CSS font definition + + if (typeof font === "object") { + textStyle = font.style + " " + font.variant + " " + font.weight + " " + font.size + "px/" + font.lineHeight + "px " + font.family; + } else { + textStyle = font; + } + + // Retrieve (or create) the cache for the text's layer and styles + + layerCache = this._textCache[layer]; + + if (layerCache == null) { + layerCache = this._textCache[layer] = {}; + } + + styleCache = layerCache[textStyle]; + + if (styleCache == null) { + styleCache = layerCache[textStyle] = {}; + } + + info = styleCache[text]; + + // If we can't find a matching element in our cache, create a new one + + if (info == null) { + + var element = $("<div></div>").html(text) + .css({ + position: "absolute", + 'max-width': width, + top: -9999 + }) + .appendTo(this.getTextLayer(layer)); + + if (typeof font === "object") { + element.css({ + font: textStyle, + color: font.color + }); + } else if (typeof font === "string") { + element.addClass(font); + } + + info = styleCache[text] = { + width: element.outerWidth(true), + height: element.outerHeight(true), + element: element, + positions: [] + }; + + element.detach(); + } + + return info; + }; + + // Adds a text string to the canvas text overlay. + // + // The text isn't drawn immediately; it is marked as rendering, which will + // result in its addition to the canvas on the next render pass. + // + // @param {string} layer A string of space-separated CSS classes uniquely + // identifying the layer containing this text. + // @param {number} x X coordinate at which to draw the text. + // @param {number} y Y coordinate at which to draw the text. + // @param {string} text Text string to draw. + // @param {(string|object)=} font Either a string of space-separated CSS + // classes or a font-spec object, defining the text's font and style. + // @param {number=} angle Angle at which to rotate the text, in degrees. + // Angle is currently unused, it will be implemented in the future. + // @param {number=} width Maximum width of the text before it wraps. + // @param {string=} halign Horizontal alignment of the text; either "left", + // "center" or "right". + // @param {string=} valign Vertical alignment of the text; either "top", + // "middle" or "bottom". + + Canvas.prototype.addText = function(layer, x, y, text, font, angle, width, halign, valign) { + + var info = this.getTextInfo(layer, text, font, angle, width), + positions = info.positions; + + // Tweak the div's position to match the text's alignment + + if (halign == "center") { + x -= info.width / 2; + } else if (halign == "right") { + x -= info.width; + } + + if (valign == "middle") { + y -= info.height / 2; + } else if (valign == "bottom") { + y -= info.height; + } + + // Determine whether this text already exists at this position. + // If so, mark it for inclusion in the next render pass. + + for (var i = 0, position; position = positions[i]; i++) { + if (position.x == x && position.y == y) { + position.active = true; + return; + } + } + + // If the text doesn't exist at this position, create a new entry + + // For the very first position we'll re-use the original element, + // while for subsequent ones we'll clone it. + + position = { + active: true, + rendered: false, + element: positions.length ? info.element.clone() : info.element, + x: x, + y: y + }; + + positions.push(position); + + // Move the element to its final position within the container + + position.element.css({ + top: Math.round(y), + left: Math.round(x), + 'text-align': halign // In case the text wraps + }); + }; + + // Removes one or more text strings from the canvas text overlay. + // + // If no parameters are given, all text within the layer is removed. + // + // Note that the text is not immediately removed; it is simply marked as + // inactive, which will result in its removal on the next render pass. + // This avoids the performance penalty for 'clear and redraw' behavior, + // where we potentially get rid of all text on a layer, but will likely + // add back most or all of it later, as when redrawing axes, for example. + // + // @param {string} layer A string of space-separated CSS classes uniquely + // identifying the layer containing this text. + // @param {number=} x X coordinate of the text. + // @param {number=} y Y coordinate of the text. + // @param {string=} text Text string to remove. + // @param {(string|object)=} font Either a string of space-separated CSS + // classes or a font-spec object, defining the text's font and style. + // @param {number=} angle Angle at which the text is rotated, in degrees. + // Angle is currently unused, it will be implemented in the future. + + Canvas.prototype.removeText = function(layer, x, y, text, font, angle) { + if (text == null) { + var layerCache = this._textCache[layer]; + if (layerCache != null) { + for (var styleKey in layerCache) { + if (hasOwnProperty.call(layerCache, styleKey)) { + var styleCache = layerCache[styleKey]; + for (var key in styleCache) { + if (hasOwnProperty.call(styleCache, key)) { + var positions = styleCache[key].positions; + for (var i = 0, position; position = positions[i]; i++) { + position.active = false; + } + } + } + } + } + } + } else { + var positions = this.getTextInfo(layer, text, font, angle).positions; + for (var i = 0, position; position = positions[i]; i++) { + if (position.x == x && position.y == y) { + position.active = false; + } + } + } + }; + + /////////////////////////////////////////////////////////////////////////// + // The top-level container for the entire plot. + + function Plot(placeholder, data_, options_, plugins) { + // data is on the form: + // [ series1, series2 ... ] + // where series is either just the data as [ [x1, y1], [x2, y2], ... ] + // or { data: [ [x1, y1], [x2, y2], ... ], label: "some label", ... } + + var series = [], + options = { + // the color theme used for graphs + colors: ["#edc240", "#afd8f8", "#cb4b4b", "#4da74d", "#9440ed"], + legend: { + show: true, + noColumns: 1, // number of colums in legend table + labelFormatter: null, // fn: string -> string + labelBoxBorderColor: "#ccc", // border color for the little label boxes + container: null, // container (as jQuery object) to put legend in, null means default on top of graph + position: "ne", // position of default legend container within plot + margin: 5, // distance from grid edge to default legend container within plot + backgroundColor: null, // null means auto-detect + backgroundOpacity: 0.85, // set to 0 to avoid background + sorted: null // default to no legend sorting + }, + xaxis: { + show: null, // null = auto-detect, true = always, false = never + position: "bottom", // or "top" + mode: null, // null or "time" + font: null, // null (derived from CSS in placeholder) or object like { size: 11, lineHeight: 13, style: "italic", weight: "bold", family: "sans-serif", variant: "small-caps" } + color: null, // base color, labels, ticks + tickColor: null, // possibly different color of ticks, e.g. "rgba(0,0,0,0.15)" + transform: null, // null or f: number -> number to transform axis + inverseTransform: null, // if transform is set, this should be the inverse function + min: null, // min. value to show, null means set automatically + max: null, // max. value to show, null means set automatically + autoscaleMargin: null, // margin in % to add if auto-setting min/max + ticks: null, // either [1, 3] or [[1, "a"], 3] or (fn: axis info -> ticks) or app. number of ticks for auto-ticks + tickFormatter: null, // fn: number -> string + labelWidth: null, // size of tick labels in pixels + labelHeight: null, + reserveSpace: null, // whether to reserve space even if axis isn't shown + tickLength: null, // size in pixels of ticks, or "full" for whole line + alignTicksWithAxis: null, // axis number or null for no sync + tickDecimals: null, // no. of decimals, null means auto + tickSize: null, // number or [number, "unit"] + minTickSize: null // number or [number, "unit"] + }, + yaxis: { + autoscaleMargin: 0.02, + position: "left" // or "right" + }, + xaxes: [], + yaxes: [], + series: { + points: { + show: false, + radius: 3, + lineWidth: 2, // in pixels + fill: true, + fillColor: "#ffffff", + symbol: "circle" // or callback + }, + lines: { + // we don't put in show: false so we can see + // whether lines were actively disabled + lineWidth: 2, // in pixels + fill: false, + fillColor: null, + steps: false + // Omit 'zero', so we can later default its value to + // match that of the 'fill' option. + }, + bars: { + show: false, + lineWidth: 2, // in pixels + barWidth: 1, // in units of the x axis + fill: true, + fillColor: null, + align: "left", // "left", "right", or "center" + horizontal: false, + zero: true + }, + shadowSize: 3, + highlightColor: null + }, + grid: { + show: true, + aboveData: false, + color: "#545454", // primary color used for outline and labels + backgroundColor: null, // null for transparent, else color + borderColor: null, // set if different from the grid color + tickColor: null, // color for the ticks, e.g. "rgba(0,0,0,0.15)" + margin: 0, // distance from the canvas edge to the grid + labelMargin: 5, // in pixels + axisMargin: 8, // in pixels + borderWidth: 2, // in pixels + minBorderMargin: null, // in pixels, null means taken from points radius + markings: null, // array of ranges or fn: axes -> array of ranges + markingsColor: "#f4f4f4", + markingsLineWidth: 2, + // interactive stuff + clickable: false, + hoverable: false, + autoHighlight: true, // highlight in case mouse is near + mouseActiveRadius: 10 // how far the mouse can be away to activate an item + }, + interaction: { + redrawOverlayInterval: 1000/60 // time between updates, -1 means in same flow + }, + hooks: {} + }, + surface = null, // the canvas for the plot itself + overlay = null, // canvas for interactive stuff on top of plot + eventHolder = null, // jQuery object that events should be bound to + ctx = null, octx = null, + xaxes = [], yaxes = [], + plotOffset = { left: 0, right: 0, top: 0, bottom: 0}, + plotWidth = 0, plotHeight = 0, + hooks = { + processOptions: [], + processRawData: [], + processDatapoints: [], + processOffset: [], + drawBackground: [], + drawSeries: [], + draw: [], + bindEvents: [], + drawOverlay: [], + shutdown: [] + }, + plot = this; + + // public functions + plot.setData = setData; + plot.setupGrid = setupGrid; + plot.draw = draw; + plot.getPlaceholder = function() { return placeholder; }; + plot.getCanvas = function() { return surface.element; }; + plot.getPlotOffset = function() { return plotOffset; }; + plot.width = function () { return plotWidth; }; + plot.height = function () { return plotHeight; }; + plot.offset = function () { + var o = eventHolder.offset(); + o.left += plotOffset.left; + o.top += plotOffset.top; + return o; + }; + plot.getData = function () { return series; }; + plot.getAxes = function () { + var res = {}, i; + $.each(xaxes.concat(yaxes), function (_, axis) { + if (axis) + res[axis.direction + (axis.n != 1 ? axis.n : "") + "axis"] = axis; + }); + return res; + }; + plot.getXAxes = function () { return xaxes; }; + plot.getYAxes = function () { return yaxes; }; + plot.c2p = canvasToAxisCoords; + plot.p2c = axisToCanvasCoords; + plot.getOptions = function () { return options; }; + plot.highlight = highlight; + plot.unhighlight = unhighlight; + plot.triggerRedrawOverlay = triggerRedrawOverlay; + plot.pointOffset = function(point) { + return { + left: parseInt(xaxes[axisNumber(point, "x") - 1].p2c(+point.x) + plotOffset.left, 10), + top: parseInt(yaxes[axisNumber(point, "y") - 1].p2c(+point.y) + plotOffset.top, 10) + }; + }; + plot.shutdown = shutdown; + plot.resize = function () { + var width = placeholder.width(), + height = placeholder.height(); + surface.resize(width, height); + overlay.resize(width, height); + }; + + // public attributes + plot.hooks = hooks; + + // initialize + initPlugins(plot); + parseOptions(options_); + setupCanvases(); + setData(data_); + setupGrid(); + draw(); + bindEvents(); + + + function executeHooks(hook, args) { + args = [plot].concat(args); + for (var i = 0; i < hook.length; ++i) + hook[i].apply(this, args); + } + + function initPlugins() { + + // References to key classes, allowing plugins to modify them + + var classes = { + Canvas: Canvas + }; + + for (var i = 0; i < plugins.length; ++i) { + var p = plugins[i]; + p.init(plot, classes); + if (p.options) + $.extend(true, options, p.options); + } + } + + function parseOptions(opts) { + + $.extend(true, options, opts); + + // $.extend merges arrays, rather than replacing them. When less + // colors are provided than the size of the default palette, we + // end up with those colors plus the remaining defaults, which is + // not expected behavior; avoid it by replacing them here. + + if (opts && opts.colors) { + options.colors = opts.colors; + } + + if (options.xaxis.color == null) + options.xaxis.color = $.color.parse(options.grid.color).scale('a', 0.22).toString(); + if (options.yaxis.color == null) + options.yaxis.color = $.color.parse(options.grid.color).scale('a', 0.22).toString(); + + if (options.xaxis.tickColor == null) // grid.tickColor for back-compatibility + options.xaxis.tickColor = options.grid.tickColor || options.xaxis.color; + if (options.yaxis.tickColor == null) // grid.tickColor for back-compatibility + options.yaxis.tickColor = options.grid.tickColor || options.yaxis.color; + + if (options.grid.borderColor == null) + options.grid.borderColor = options.grid.color; + if (options.grid.tickColor == null) + options.grid.tickColor = $.color.parse(options.grid.color).scale('a', 0.22).toString(); + + // Fill in defaults for axis options, including any unspecified + // font-spec fields, if a font-spec was provided. + + // If no x/y axis options were provided, create one of each anyway, + // since the rest of the code assumes that they exist. + + var i, axisOptions, axisCount, + fontDefaults = { + style: placeholder.css("font-style"), + size: Math.round(0.8 * (+placeholder.css("font-size").replace("px", "") || 13)), + variant: placeholder.css("font-variant"), + weight: placeholder.css("font-weight"), + family: placeholder.css("font-family") + }; + + fontDefaults.lineHeight = fontDefaults.size * 1.15; + + axisCount = options.xaxes.length || 1; + for (i = 0; i < axisCount; ++i) { + + axisOptions = options.xaxes[i]; + if (axisOptions && !axisOptions.tickColor) { + axisOptions.tickColor = axisOptions.color; + } + + axisOptions = $.extend(true, {}, options.xaxis, axisOptions); + options.xaxes[i] = axisOptions; + + if (axisOptions.font) { + axisOptions.font = $.extend({}, fontDefaults, axisOptions.font); + if (!axisOptions.font.color) { + axisOptions.font.color = axisOptions.color; + } + } + } + + axisCount = options.yaxes.length || 1; + for (i = 0; i < axisCount; ++i) { + + axisOptions = options.yaxes[i]; + if (axisOptions && !axisOptions.tickColor) { + axisOptions.tickColor = axisOptions.color; + } + + axisOptions = $.extend(true, {}, options.yaxis, axisOptions); + options.yaxes[i] = axisOptions; + + if (axisOptions.font) { + axisOptions.font = $.extend({}, fontDefaults, axisOptions.font); + if (!axisOptions.font.color) { + axisOptions.font.color = axisOptions.color; + } + } + } + + // backwards compatibility, to be removed in future + if (options.xaxis.noTicks && options.xaxis.ticks == null) + options.xaxis.ticks = options.xaxis.noTicks; + if (options.yaxis.noTicks && options.yaxis.ticks == null) + options.yaxis.ticks = options.yaxis.noTicks; + if (options.x2axis) { + options.xaxes[1] = $.extend(true, {}, options.xaxis, options.x2axis); + options.xaxes[1].position = "top"; + } + if (options.y2axis) { + options.yaxes[1] = $.extend(true, {}, options.yaxis, options.y2axis); + options.yaxes[1].position = "right"; + } + if (options.grid.coloredAreas) + options.grid.markings = options.grid.coloredAreas; + if (options.grid.coloredAreasColor) + options.grid.markingsColor = options.grid.coloredAreasColor; + if (options.lines) + $.extend(true, options.series.lines, options.lines); + if (options.points) + $.extend(true, options.series.points, options.points); + if (options.bars) + $.extend(true, options.series.bars, options.bars); + if (options.shadowSize != null) + options.series.shadowSize = options.shadowSize; + if (options.highlightColor != null) + options.series.highlightColor = options.highlightColor; + + // save options on axes for future reference + for (i = 0; i < options.xaxes.length; ++i) + getOrCreateAxis(xaxes, i + 1).options = options.xaxes[i]; + for (i = 0; i < options.yaxes.length; ++i) + getOrCreateAxis(yaxes, i + 1).options = options.yaxes[i]; + + // add hooks from options + for (var n in hooks) + if (options.hooks[n] && options.hooks[n].length) + hooks[n] = hooks[n].concat(options.hooks[n]); + + executeHooks(hooks.processOptions, [options]); + } + + function setData(d) { + series = parseData(d); + fillInSeriesOptions(); + processData(); + } + + function parseData(d) { + var res = []; + for (var i = 0; i < d.length; ++i) { + var s = $.extend(true, {}, options.series); + + if (d[i].data != null) { + s.data = d[i].data; // move the data instead of deep-copy + delete d[i].data; + + $.extend(true, s, d[i]); + + d[i].data = s.data; + } + else + s.data = d[i]; + res.push(s); + } + + return res; + } + + function axisNumber(obj, coord) { + var a = obj[coord + "axis"]; + if (typeof a == "object") // if we got a real axis, extract number + a = a.n; + if (typeof a != "number") + a = 1; // default to first axis + return a; + } + + function allAxes() { + // return flat array without annoying null entries + return $.grep(xaxes.concat(yaxes), function (a) { return a; }); + } + + function canvasToAxisCoords(pos) { + // return an object with x/y corresponding to all used axes + var res = {}, i, axis; + for (i = 0; i < xaxes.length; ++i) { + axis = xaxes[i]; + if (axis && axis.used) + res["x" + axis.n] = axis.c2p(pos.left); + } + + for (i = 0; i < yaxes.length; ++i) { + axis = yaxes[i]; + if (axis && axis.used) + res["y" + axis.n] = axis.c2p(pos.top); + } + + if (res.x1 !== undefined) + res.x = res.x1; + if (res.y1 !== undefined) + res.y = res.y1; + + return res; + } + + function axisToCanvasCoords(pos) { + // get canvas coords from the first pair of x/y found in pos + var res = {}, i, axis, key; + + for (i = 0; i < xaxes.length; ++i) { + axis = xaxes[i]; + if (axis && axis.used) { + key = "x" + axis.n; + if (pos[key] == null && axis.n == 1) + key = "x"; + + if (pos[key] != null) { + res.left = axis.p2c(pos[key]); + break; + } + } + } + + for (i = 0; i < yaxes.length; ++i) { + axis = yaxes[i]; + if (axis && axis.used) { + key = "y" + axis.n; + if (pos[key] == null && axis.n == 1) + key = "y"; + + if (pos[key] != null) { + res.top = axis.p2c(pos[key]); + break; + } + } + } + + return res; + } + + function getOrCreateAxis(axes, number) { + if (!axes[number - 1]) + axes[number - 1] = { + n: number, // save the number for future reference + direction: axes == xaxes ? "x" : "y", + options: $.extend(true, {}, axes == xaxes ? options.xaxis : options.yaxis) + }; + + return axes[number - 1]; + } + + function fillInSeriesOptions() { + + var neededColors = series.length, maxIndex = -1, i; + + // Subtract the number of series that already have fixed colors or + // color indexes from the number that we still need to generate. + + for (i = 0; i < series.length; ++i) { + var sc = series[i].color; + if (sc != null) { + neededColors--; + if (typeof sc == "number" && sc > maxIndex) { + maxIndex = sc; + } + } + } + + // If any of the series have fixed color indexes, then we need to + // generate at least as many colors as the highest index. + + if (neededColors <= maxIndex) { + neededColors = maxIndex + 1; + } + + // Generate all the colors, using first the option colors and then + // variations on those colors once they're exhausted. + + var c, colors = [], colorPool = options.colors, + colorPoolSize = colorPool.length, variation = 0; + + for (i = 0; i < neededColors; i++) { + + c = $.color.parse(colorPool[i % colorPoolSize] || "#666"); + + // Each time we exhaust the colors in the pool we adjust + // a scaling factor used to produce more variations on + // those colors. The factor alternates negative/positive + // to produce lighter/darker colors. + + // Reset the variation after every few cycles, or else + // it will end up producing only white or black colors. + + if (i % colorPoolSize == 0 && i) { + if (variation >= 0) { + if (variation < 0.5) { + variation = -variation - 0.2; + } else variation = 0; + } else variation = -variation; + } + + colors[i] = c.scale('rgb', 1 + variation); + } + + // Finalize the series options, filling in their colors + + var colori = 0, s; + for (i = 0; i < series.length; ++i) { + s = series[i]; + + // assign colors + if (s.color == null) { + s.color = colors[colori].toString(); + ++colori; + } + else if (typeof s.color == "number") + s.color = colors[s.color].toString(); + + // turn on lines automatically in case nothing is set + if (s.lines.show == null) { + var v, show = true; + for (v in s) + if (s[v] && s[v].show) { + show = false; + break; + } + if (show) + s.lines.show = true; + } + + // If nothing was provided for lines.zero, default it to match + // lines.fill, since areas by default should extend to zero. + + if (s.lines.zero == null) { + s.lines.zero = !!s.lines.fill; + } + + // setup axes + s.xaxis = getOrCreateAxis(xaxes, axisNumber(s, "x")); + s.yaxis = getOrCreateAxis(yaxes, axisNumber(s, "y")); + } + } + + function processData() { + var topSentry = Number.POSITIVE_INFINITY, + bottomSentry = Number.NEGATIVE_INFINITY, + fakeInfinity = Number.MAX_VALUE, + i, j, k, m, length, + s, points, ps, x, y, axis, val, f, p, + data, format; + + function updateAxis(axis, min, max) { + if (min < axis.datamin && min != -fakeInfinity) + axis.datamin = min; + if (max > axis.datamax && max != fakeInfinity) + axis.datamax = max; + } + + $.each(allAxes(), function (_, axis) { + // init axis + axis.datamin = topSentry; + axis.datamax = bottomSentry; + axis.used = false; + }); + + for (i = 0; i < series.length; ++i) { + s = series[i]; + s.datapoints = { points: [] }; + + executeHooks(hooks.processRawData, [ s, s.data, s.datapoints ]); + } + + // first pass: clean and copy data + for (i = 0; i < series.length; ++i) { + s = series[i]; + + data = s.data; + format = s.datapoints.format; + + if (!format) { + format = []; + // find out how to copy + format.push({ x: true, number: true, required: true }); + format.push({ y: true, number: true, required: true }); + + if (s.bars.show || (s.lines.show && s.lines.fill)) { + var autoscale = !!((s.bars.show && s.bars.zero) || (s.lines.show && s.lines.zero)); + format.push({ y: true, number: true, required: false, defaultValue: 0, autoscale: autoscale }); + if (s.bars.horizontal) { + delete format[format.length - 1].y; + format[format.length - 1].x = true; + } + } + + s.datapoints.format = format; + } + + if (s.datapoints.pointsize != null) + continue; // already filled in + + s.datapoints.pointsize = format.length; + + ps = s.datapoints.pointsize; + points = s.datapoints.points; + + var insertSteps = s.lines.show && s.lines.steps; + s.xaxis.used = s.yaxis.used = true; + + for (j = k = 0; j < data.length; ++j, k += ps) { + p = data[j]; + + var nullify = p == null; + if (!nullify) { + for (m = 0; m < ps; ++m) { + val = p[m]; + f = format[m]; + + if (f) { + if (f.number && val != null) { + val = +val; // convert to number + if (isNaN(val)) + val = null; + else if (val == Infinity) + val = fakeInfinity; + else if (val == -Infinity) + val = -fakeInfinity; + } + + if (val == null) { + if (f.required) + nullify = true; + + if (f.defaultValue != null) + val = f.defaultValue; + } + } + + points[k + m] = val; + } + } + + if (nullify) { + for (m = 0; m < ps; ++m) { + val = points[k + m]; + if (val != null) { + f = format[m]; + // extract min/max info + if (f.autoscale !== false) { + if (f.x) { + updateAxis(s.xaxis, val, val); + } + if (f.y) { + updateAxis(s.yaxis, val, val); + } + } + } + points[k + m] = null; + } + } + else { + // a little bit of line specific stuff that + // perhaps shouldn't be here, but lacking + // better means... + if (insertSteps && k > 0 + && points[k - ps] != null + && points[k - ps] != points[k] + && points[k - ps + 1] != points[k + 1]) { + // copy the point to make room for a middle point + for (m = 0; m < ps; ++m) + points[k + ps + m] = points[k + m]; + + // middle point has same y + points[k + 1] = points[k - ps + 1]; + + // we've added a point, better reflect that + k += ps; + } + } + } + } + + // give the hooks a chance to run + for (i = 0; i < series.length; ++i) { + s = series[i]; + + executeHooks(hooks.processDatapoints, [ s, s.datapoints]); + } + + // second pass: find datamax/datamin for auto-scaling + for (i = 0; i < series.length; ++i) { + s = series[i]; + points = s.datapoints.points; + ps = s.datapoints.pointsize; + format = s.datapoints.format; + + var xmin = topSentry, ymin = topSentry, + xmax = bottomSentry, ymax = bottomSentry; + + for (j = 0; j < points.length; j += ps) { + if (points[j] == null) + continue; + + for (m = 0; m < ps; ++m) { + val = points[j + m]; + f = format[m]; + if (!f || f.autoscale === false || val == fakeInfinity || val == -fakeInfinity) + continue; + + if (f.x) { + if (val < xmin) + xmin = val; + if (val > xmax) + xmax = val; + } + if (f.y) { + if (val < ymin) + ymin = val; + if (val > ymax) + ymax = val; + } + } + } + + if (s.bars.show) { + // make sure we got room for the bar on the dancing floor + var delta; + + switch (s.bars.align) { + case "left": + delta = 0; + break; + case "right": + delta = -s.bars.barWidth; + break; + default: + delta = -s.bars.barWidth / 2; + } + + if (s.bars.horizontal) { + ymin += delta; + ymax += delta + s.bars.barWidth; + } + else { + xmin += delta; + xmax += delta + s.bars.barWidth; + } + } + + updateAxis(s.xaxis, xmin, xmax); + updateAxis(s.yaxis, ymin, ymax); + } + + $.each(allAxes(), function (_, axis) { + if (axis.datamin == topSentry) + axis.datamin = null; + if (axis.datamax == bottomSentry) + axis.datamax = null; + }); + } + + function setupCanvases() { + + // Make sure the placeholder is clear of everything except canvases + // from a previous plot in this container that we'll try to re-use. + + placeholder.css("padding", 0) // padding messes up the positioning + .children(":not(.flot-base,.flot-overlay)").remove(); + + if (placeholder.css("position") == 'static') + placeholder.css("position", "relative"); // for positioning labels and overlay + + surface = new Canvas("flot-base", placeholder); + overlay = new Canvas("flot-overlay", placeholder); // overlay canvas for interactive features + + ctx = surface.context; + octx = overlay.context; + + // define which element we're listening for events on + eventHolder = $(overlay.element).unbind(); + + // If we're re-using a plot object, shut down the old one + + var existing = placeholder.data("plot"); + + if (existing) { + existing.shutdown(); + overlay.clear(); + } + + // save in case we get replotted + placeholder.data("plot", plot); + } + + function bindEvents() { + // bind events + if (options.grid.hoverable) { + eventHolder.mousemove(onMouseMove); + + // Use bind, rather than .mouseleave, because we officially + // still support jQuery 1.2.6, which doesn't define a shortcut + // for mouseenter or mouseleave. This was a bug/oversight that + // was fixed somewhere around 1.3.x. We can return to using + // .mouseleave when we drop support for 1.2.6. + + eventHolder.bind("mouseleave", onMouseLeave); + } + + if (options.grid.clickable) + eventHolder.click(onClick); + + executeHooks(hooks.bindEvents, [eventHolder]); + } + + function shutdown() { + if (redrawTimeout) + clearTimeout(redrawTimeout); + + eventHolder.unbind("mousemove", onMouseMove); + eventHolder.unbind("mouseleave", onMouseLeave); + eventHolder.unbind("click", onClick); + + executeHooks(hooks.shutdown, [eventHolder]); + } + + function setTransformationHelpers(axis) { + // set helper functions on the axis, assumes plot area + // has been computed already + + function identity(x) { return x; } + + var s, m, t = axis.options.transform || identity, + it = axis.options.inverseTransform; + + // precompute how much the axis is scaling a point + // in canvas space + if (axis.direction == "x") { + s = axis.scale = plotWidth / Math.abs(t(axis.max) - t(axis.min)); + m = Math.min(t(axis.max), t(axis.min)); + } + else { + s = axis.scale = plotHeight / Math.abs(t(axis.max) - t(axis.min)); + s = -s; + m = Math.max(t(axis.max), t(axis.min)); + } + + // data point to canvas coordinate + if (t == identity) // slight optimization + axis.p2c = function (p) { return (p - m) * s; }; + else + axis.p2c = function (p) { return (t(p) - m) * s; }; + // canvas coordinate to data point + if (!it) + axis.c2p = function (c) { return m + c / s; }; + else + axis.c2p = function (c) { return it(m + c / s); }; + } + + function measureTickLabels(axis) { + + var opts = axis.options, + ticks = axis.ticks || [], + labelWidth = opts.labelWidth || 0, + labelHeight = opts.labelHeight || 0, + maxWidth = labelWidth || axis.direction == "x" ? Math.floor(surface.width / (ticks.length || 1)) : null, + legacyStyles = axis.direction + "Axis " + axis.direction + axis.n + "Axis", + layer = "flot-" + axis.direction + "-axis flot-" + axis.direction + axis.n + "-axis " + legacyStyles, + font = opts.font || "flot-tick-label tickLabel"; + + for (var i = 0; i < ticks.length; ++i) { + + var t = ticks[i]; + + if (!t.label) + continue; + + var info = surface.getTextInfo(layer, t.label, font, null, maxWidth); + + labelWidth = Math.max(labelWidth, info.width); + labelHeight = Math.max(labelHeight, info.height); + } + + axis.labelWidth = opts.labelWidth || labelWidth; + axis.labelHeight = opts.labelHeight || labelHeight; + } + + function allocateAxisBoxFirstPhase(axis) { + // find the bounding box of the axis by looking at label + // widths/heights and ticks, make room by diminishing the + // plotOffset; this first phase only looks at one + // dimension per axis, the other dimension depends on the + // other axes so will have to wait + + var lw = axis.labelWidth, + lh = axis.labelHeight, + pos = axis.options.position, + tickLength = axis.options.tickLength, + axisMargin = options.grid.axisMargin, + padding = options.grid.labelMargin, + all = axis.direction == "x" ? xaxes : yaxes, + index, innermost; + + // determine axis margin + var samePosition = $.grep(all, function (a) { + return a && a.options.position == pos && a.reserveSpace; + }); + if ($.inArray(axis, samePosition) == samePosition.length - 1) + axisMargin = 0; // outermost + + // Determine whether the axis is the first (innermost) on its side + + innermost = $.inArray(axis, samePosition) == 0; + + // determine tick length - if we're innermost, we can use "full" + + if (tickLength == null) { + if (innermost) + tickLength = "full"; + else + tickLength = 5; + } + + if (!isNaN(+tickLength)) + padding += +tickLength; + + // compute box + if (axis.direction == "x") { + lh += padding; + + if (pos == "bottom") { + plotOffset.bottom += lh + axisMargin; + axis.box = { top: surface.height - plotOffset.bottom, height: lh }; + } + else { + axis.box = { top: plotOffset.top + axisMargin, height: lh }; + plotOffset.top += lh + axisMargin; + } + } + else { + lw += padding; + + if (pos == "left") { + axis.box = { left: plotOffset.left + axisMargin, width: lw }; + plotOffset.left += lw + axisMargin; + } + else { + plotOffset.right += lw + axisMargin; + axis.box = { left: surface.width - plotOffset.right, width: lw }; + } + } + + // save for future reference + axis.position = pos; + axis.tickLength = tickLength; + axis.box.padding = padding; + axis.innermost = innermost; + } + + function allocateAxisBoxSecondPhase(axis) { + // now that all axis boxes have been placed in one + // dimension, we can set the remaining dimension coordinates + if (axis.direction == "x") { + axis.box.left = plotOffset.left - axis.labelWidth / 2; + axis.box.width = surface.width - plotOffset.left - plotOffset.right + axis.labelWidth; + } + else { + axis.box.top = plotOffset.top - axis.labelHeight / 2; + axis.box.height = surface.height - plotOffset.bottom - plotOffset.top + axis.labelHeight; + } + } + + function adjustLayoutForThingsStickingOut() { + // possibly adjust plot offset to ensure everything stays + // inside the canvas and isn't clipped off + + var minMargin = options.grid.minBorderMargin, + margins = { x: 0, y: 0 }, i, axis; + + // check stuff from the plot (FIXME: this should just read + // a value from the series, otherwise it's impossible to + // customize) + if (minMargin == null) { + minMargin = 0; + for (i = 0; i < series.length; ++i) + minMargin = Math.max(minMargin, 2 * (series[i].points.radius + series[i].points.lineWidth/2)); + } + + margins.x = margins.y = Math.ceil(minMargin); + + // check axis labels, note we don't check the actual + // labels but instead use the overall width/height to not + // jump as much around with replots + $.each(allAxes(), function (_, axis) { + var dir = axis.direction; + if (axis.reserveSpace) + margins[dir] = Math.ceil(Math.max(margins[dir], (dir == "x" ? axis.labelWidth : axis.labelHeight) / 2)); + }); + + plotOffset.left = Math.max(margins.x, plotOffset.left); + plotOffset.right = Math.max(margins.x, plotOffset.right); + plotOffset.top = Math.max(margins.y, plotOffset.top); + plotOffset.bottom = Math.max(margins.y, plotOffset.bottom); + } + + function setupGrid() { + var i, axes = allAxes(), showGrid = options.grid.show; + + // Initialize the plot's offset from the edge of the canvas + + for (var a in plotOffset) { + var margin = options.grid.margin || 0; + plotOffset[a] = typeof margin == "number" ? margin : margin[a] || 0; + } + + executeHooks(hooks.processOffset, [plotOffset]); + + // If the grid is visible, add its border width to the offset + + for (var a in plotOffset) { + if(typeof(options.grid.borderWidth) == "object") { + plotOffset[a] += showGrid ? options.grid.borderWidth[a] : 0; + } + else { + plotOffset[a] += showGrid ? options.grid.borderWidth : 0; + } + } + + // init axes + $.each(axes, function (_, axis) { + axis.show = axis.options.show; + if (axis.show == null) + axis.show = axis.used; // by default an axis is visible if it's got data + + axis.reserveSpace = axis.show || axis.options.reserveSpace; + + setRange(axis); + }); + + if (showGrid) { + + var allocatedAxes = $.grep(axes, function (axis) { return axis.reserveSpace; }); + + $.each(allocatedAxes, function (_, axis) { + // make the ticks + setupTickGeneration(axis); + setTicks(axis); + snapRangeToTicks(axis, axis.ticks); + // find labelWidth/Height for axis + measureTickLabels(axis); + }); + + // with all dimensions calculated, we can compute the + // axis bounding boxes, start from the outside + // (reverse order) + for (i = allocatedAxes.length - 1; i >= 0; --i) + allocateAxisBoxFirstPhase(allocatedAxes[i]); + + // make sure we've got enough space for things that + // might stick out + adjustLayoutForThingsStickingOut(); + + $.each(allocatedAxes, function (_, axis) { + allocateAxisBoxSecondPhase(axis); + }); + } + + plotWidth = surface.width - plotOffset.left - plotOffset.right; + plotHeight = surface.height - plotOffset.bottom - plotOffset.top; + + // now we got the proper plot dimensions, we can compute the scaling + $.each(axes, function (_, axis) { + setTransformationHelpers(axis); + }); + + if (showGrid) { + drawAxisLabels(); + } + + insertLegend(); + } + + function setRange(axis) { + var opts = axis.options, + min = +(opts.min != null ? opts.min : axis.datamin), + max = +(opts.max != null ? opts.max : axis.datamax), + delta = max - min; + + if (delta == 0.0) { + // degenerate case + var widen = max == 0 ? 1 : 0.01; + + if (opts.min == null) + min -= widen; + // always widen max if we couldn't widen min to ensure we + // don't fall into min == max which doesn't work + if (opts.max == null || opts.min != null) + max += widen; + } + else { + // consider autoscaling + var margin = opts.autoscaleMargin; + if (margin != null) { + if (opts.min == null) { + min -= delta * margin; + // make sure we don't go below zero if all values + // are positive + if (min < 0 && axis.datamin != null && axis.datamin >= 0) + min = 0; + } + if (opts.max == null) { + max += delta * margin; + if (max > 0 && axis.datamax != null && axis.datamax <= 0) + max = 0; + } + } + } + axis.min = min; + axis.max = max; + } + + function setupTickGeneration(axis) { + var opts = axis.options; + + // estimate number of ticks + var noTicks; + if (typeof opts.ticks == "number" && opts.ticks > 0) + noTicks = opts.ticks; + else + // heuristic based on the model a*sqrt(x) fitted to + // some data points that seemed reasonable + noTicks = 0.3 * Math.sqrt(axis.direction == "x" ? surface.width : surface.height); + + var delta = (axis.max - axis.min) / noTicks, + dec = -Math.floor(Math.log(delta) / Math.LN10), + maxDec = opts.tickDecimals; + + if (maxDec != null && dec > maxDec) { + dec = maxDec; + } + + var magn = Math.pow(10, -dec), + norm = delta / magn, // norm is between 1.0 and 10.0 + size; + + if (norm < 1.5) { + size = 1; + } else if (norm < 3) { + size = 2; + // special case for 2.5, requires an extra decimal + if (norm > 2.25 && (maxDec == null || dec + 1 <= maxDec)) { + size = 2.5; + ++dec; + } + } else if (norm < 7.5) { + size = 5; + } else { + size = 10; + } + + size *= magn; + + if (opts.minTickSize != null && size < opts.minTickSize) { + size = opts.minTickSize; + } + + axis.delta = delta; + axis.tickDecimals = Math.max(0, maxDec != null ? maxDec : dec); + axis.tickSize = opts.tickSize || size; + + // Time mode was moved to a plug-in in 0.8, but since so many people use this + // we'll add an especially friendly make sure they remembered to include it. + + if (opts.mode == "time" && !axis.tickGenerator) { + throw new Error("Time mode requires the flot.time plugin."); + } + + // Flot supports base-10 axes; any other mode else is handled by a plug-in, + // like flot.time.js. + + if (!axis.tickGenerator) { + + axis.tickGenerator = function (axis) { + + var ticks = [], + start = floorInBase(axis.min, axis.tickSize), + i = 0, + v = Number.NaN, + prev; + + do { + prev = v; + v = start + i * axis.tickSize; + ticks.push(v); + ++i; + } while (v < axis.max && v != prev); + return ticks; + }; + + axis.tickFormatter = function (value, axis) { + + var factor = axis.tickDecimals ? Math.pow(10, axis.tickDecimals) : 1; + var formatted = "" + Math.round(value * factor) / factor; + + // If tickDecimals was specified, ensure that we have exactly that + // much precision; otherwise default to the value's own precision. + + if (axis.tickDecimals != null) { + var decimal = formatted.indexOf("."); + var precision = decimal == -1 ? 0 : formatted.length - decimal - 1; + if (precision < axis.tickDecimals) { + return (precision ? formatted : formatted + ".") + ("" + factor).substr(1, axis.tickDecimals - precision); + } + } + + return formatted; + }; + } + + if ($.isFunction(opts.tickFormatter)) + axis.tickFormatter = function (v, axis) { return "" + opts.tickFormatter(v, axis); }; + + if (opts.alignTicksWithAxis != null) { + var otherAxis = (axis.direction == "x" ? xaxes : yaxes)[opts.alignTicksWithAxis - 1]; + if (otherAxis && otherAxis.used && otherAxis != axis) { + // consider snapping min/max to outermost nice ticks + var niceTicks = axis.tickGenerator(axis); + if (niceTicks.length > 0) { + if (opts.min == null) + axis.min = Math.min(axis.min, niceTicks[0]); + if (opts.max == null && niceTicks.length > 1) + axis.max = Math.max(axis.max, niceTicks[niceTicks.length - 1]); + } + + axis.tickGenerator = function (axis) { + // copy ticks, scaled to this axis + var ticks = [], v, i; + for (i = 0; i < otherAxis.ticks.length; ++i) { + v = (otherAxis.ticks[i].v - otherAxis.min) / (otherAxis.max - otherAxis.min); + v = axis.min + v * (axis.max - axis.min); + ticks.push(v); + } + return ticks; + }; + + // we might need an extra decimal since forced + // ticks don't necessarily fit naturally + if (!axis.mode && opts.tickDecimals == null) { + var extraDec = Math.max(0, -Math.floor(Math.log(axis.delta) / Math.LN10) + 1), + ts = axis.tickGenerator(axis); + + // only proceed if the tick interval rounded + // with an extra decimal doesn't give us a + // zero at end + if (!(ts.length > 1 && /\..*0$/.test((ts[1] - ts[0]).toFixed(extraDec)))) + axis.tickDecimals = extraDec; + } + } + } + } + + function setTicks(axis) { + var oticks = axis.options.ticks, ticks = []; + if (oticks == null || (typeof oticks == "number" && oticks > 0)) + ticks = axis.tickGenerator(axis); + else if (oticks) { + if ($.isFunction(oticks)) + // generate the ticks + ticks = oticks(axis); + else + ticks = oticks; + } + + // clean up/labelify the supplied ticks, copy them over + var i, v; + axis.ticks = []; + for (i = 0; i < ticks.length; ++i) { + var label = null; + var t = ticks[i]; + if (typeof t == "object") { + v = +t[0]; + if (t.length > 1) + label = t[1]; + } + else + v = +t; + if (label == null) + label = axis.tickFormatter(v, axis); + if (!isNaN(v)) + axis.ticks.push({ v: v, label: label }); + } + } + + function snapRangeToTicks(axis, ticks) { + if (axis.options.autoscaleMargin && ticks.length > 0) { + // snap to ticks + if (axis.options.min == null) + axis.min = Math.min(axis.min, ticks[0].v); + if (axis.options.max == null && ticks.length > 1) + axis.max = Math.max(axis.max, ticks[ticks.length - 1].v); + } + } + + function draw() { + + surface.clear(); + + executeHooks(hooks.drawBackground, [ctx]); + + var grid = options.grid; + + // draw background, if any + if (grid.show && grid.backgroundColor) + drawBackground(); + + if (grid.show && !grid.aboveData) { + drawGrid(); + } + + for (var i = 0; i < series.length; ++i) { + executeHooks(hooks.drawSeries, [ctx, series[i]]); + drawSeries(series[i]); + } + + executeHooks(hooks.draw, [ctx]); + + if (grid.show && grid.aboveData) { + drawGrid(); + } + + surface.render(); + + // A draw implies that either the axes or data have changed, so we + // should probably update the overlay highlights as well. + + triggerRedrawOverlay(); + } + + function extractRange(ranges, coord) { + var axis, from, to, key, axes = allAxes(); + + for (var i = 0; i < axes.length; ++i) { + axis = axes[i]; + if (axis.direction == coord) { + key = coord + axis.n + "axis"; + if (!ranges[key] && axis.n == 1) + key = coord + "axis"; // support x1axis as xaxis + if (ranges[key]) { + from = ranges[key].from; + to = ranges[key].to; + break; + } + } + } + + // backwards-compat stuff - to be removed in future + if (!ranges[key]) { + axis = coord == "x" ? xaxes[0] : yaxes[0]; + from = ranges[coord + "1"]; + to = ranges[coord + "2"]; + } + + // auto-reverse as an added bonus + if (from != null && to != null && from > to) { + var tmp = from; + from = to; + to = tmp; + } + + return { from: from, to: to, axis: axis }; + } + + function drawBackground() { + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + + ctx.fillStyle = getColorOrGradient(options.grid.backgroundColor, plotHeight, 0, "rgba(255, 255, 255, 0)"); + ctx.fillRect(0, 0, plotWidth, plotHeight); + ctx.restore(); + } + + function drawGrid() { + var i, axes, bw, bc; + + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + + // draw markings + var markings = options.grid.markings; + if (markings) { + if ($.isFunction(markings)) { + axes = plot.getAxes(); + // xmin etc. is backwards compatibility, to be + // removed in the future + axes.xmin = axes.xaxis.min; + axes.xmax = axes.xaxis.max; + axes.ymin = axes.yaxis.min; + axes.ymax = axes.yaxis.max; + + markings = markings(axes); + } + + for (i = 0; i < markings.length; ++i) { + var m = markings[i], + xrange = extractRange(m, "x"), + yrange = extractRange(m, "y"); + + // fill in missing + if (xrange.from == null) + xrange.from = xrange.axis.min; + if (xrange.to == null) + xrange.to = xrange.axis.max; + if (yrange.from == null) + yrange.from = yrange.axis.min; + if (yrange.to == null) + yrange.to = yrange.axis.max; + + // clip + if (xrange.to < xrange.axis.min || xrange.from > xrange.axis.max || + yrange.to < yrange.axis.min || yrange.from > yrange.axis.max) + continue; + + xrange.from = Math.max(xrange.from, xrange.axis.min); + xrange.to = Math.min(xrange.to, xrange.axis.max); + yrange.from = Math.max(yrange.from, yrange.axis.min); + yrange.to = Math.min(yrange.to, yrange.axis.max); + + if (xrange.from == xrange.to && yrange.from == yrange.to) + continue; + + // then draw + xrange.from = xrange.axis.p2c(xrange.from); + xrange.to = xrange.axis.p2c(xrange.to); + yrange.from = yrange.axis.p2c(yrange.from); + yrange.to = yrange.axis.p2c(yrange.to); + + if (xrange.from == xrange.to || yrange.from == yrange.to) { + // draw line + ctx.beginPath(); + ctx.strokeStyle = m.color || options.grid.markingsColor; + ctx.lineWidth = m.lineWidth || options.grid.markingsLineWidth; + ctx.moveTo(xrange.from, yrange.from); + ctx.lineTo(xrange.to, yrange.to); + ctx.stroke(); + } + else { + // fill area + ctx.fillStyle = m.color || options.grid.markingsColor; + ctx.fillRect(xrange.from, yrange.to, + xrange.to - xrange.from, + yrange.from - yrange.to); + } + } + } + + // draw the ticks + axes = allAxes(); + bw = options.grid.borderWidth; + + for (var j = 0; j < axes.length; ++j) { + var axis = axes[j], box = axis.box, + t = axis.tickLength, x, y, xoff, yoff; + if (!axis.show || axis.ticks.length == 0) + continue; + + ctx.lineWidth = 1; + + // find the edges + if (axis.direction == "x") { + x = 0; + if (t == "full") + y = (axis.position == "top" ? 0 : plotHeight); + else + y = box.top - plotOffset.top + (axis.position == "top" ? box.height : 0); + } + else { + y = 0; + if (t == "full") + x = (axis.position == "left" ? 0 : plotWidth); + else + x = box.left - plotOffset.left + (axis.position == "left" ? box.width : 0); + } + + // draw tick bar + if (!axis.innermost) { + ctx.strokeStyle = axis.options.color; + ctx.beginPath(); + xoff = yoff = 0; + if (axis.direction == "x") + xoff = plotWidth + 1; + else + yoff = plotHeight + 1; + + if (ctx.lineWidth == 1) { + if (axis.direction == "x") { + y = Math.floor(y) + 0.5; + } else { + x = Math.floor(x) + 0.5; + } + } + + ctx.moveTo(x, y); + ctx.lineTo(x + xoff, y + yoff); + ctx.stroke(); + } + + // draw ticks + + ctx.strokeStyle = axis.options.tickColor; + + ctx.beginPath(); + for (i = 0; i < axis.ticks.length; ++i) { + var v = axis.ticks[i].v; + + xoff = yoff = 0; + + if (isNaN(v) || v < axis.min || v > axis.max + // skip those lying on the axes if we got a border + || (t == "full" + && ((typeof bw == "object" && bw[axis.position] > 0) || bw > 0) + && (v == axis.min || v == axis.max))) + continue; + + if (axis.direction == "x") { + x = axis.p2c(v); + yoff = t == "full" ? -plotHeight : t; + + if (axis.position == "top") + yoff = -yoff; + } + else { + y = axis.p2c(v); + xoff = t == "full" ? -plotWidth : t; + + if (axis.position == "left") + xoff = -xoff; + } + + if (ctx.lineWidth == 1) { + if (axis.direction == "x") + x = Math.floor(x) + 0.5; + else + y = Math.floor(y) + 0.5; + } + + ctx.moveTo(x, y); + ctx.lineTo(x + xoff, y + yoff); + } + + ctx.stroke(); + } + + + // draw border + if (bw) { + // If either borderWidth or borderColor is an object, then draw the border + // line by line instead of as one rectangle + bc = options.grid.borderColor; + if(typeof bw == "object" || typeof bc == "object") { + if (typeof bw !== "object") { + bw = {top: bw, right: bw, bottom: bw, left: bw}; + } + if (typeof bc !== "object") { + bc = {top: bc, right: bc, bottom: bc, left: bc}; + } + + if (bw.top > 0) { + ctx.strokeStyle = bc.top; + ctx.lineWidth = bw.top; + ctx.beginPath(); + ctx.moveTo(0 - bw.left, 0 - bw.top/2); + ctx.lineTo(plotWidth, 0 - bw.top/2); + ctx.stroke(); + } + + if (bw.right > 0) { + ctx.strokeStyle = bc.right; + ctx.lineWidth = bw.right; + ctx.beginPath(); + ctx.moveTo(plotWidth + bw.right / 2, 0 - bw.top); + ctx.lineTo(plotWidth + bw.right / 2, plotHeight); + ctx.stroke(); + } + + if (bw.bottom > 0) { + ctx.strokeStyle = bc.bottom; + ctx.lineWidth = bw.bottom; + ctx.beginPath(); + ctx.moveTo(plotWidth + bw.right, plotHeight + bw.bottom / 2); + ctx.lineTo(0, plotHeight + bw.bottom / 2); + ctx.stroke(); + } + + if (bw.left > 0) { + ctx.strokeStyle = bc.left; + ctx.lineWidth = bw.left; + ctx.beginPath(); + ctx.moveTo(0 - bw.left/2, plotHeight + bw.bottom); + ctx.lineTo(0- bw.left/2, 0); + ctx.stroke(); + } + } + else { + ctx.lineWidth = bw; + ctx.strokeStyle = options.grid.borderColor; + ctx.strokeRect(-bw/2, -bw/2, plotWidth + bw, plotHeight + bw); + } + } + + ctx.restore(); + } + + function drawAxisLabels() { + + $.each(allAxes(), function (_, axis) { + var box = axis.box, + legacyStyles = axis.direction + "Axis " + axis.direction + axis.n + "Axis", + layer = "flot-" + axis.direction + "-axis flot-" + axis.direction + axis.n + "-axis " + legacyStyles, + font = axis.options.font || "flot-tick-label tickLabel", + tick, x, y, halign, valign; + + // Remove text before checking for axis.show and ticks.length; + // otherwise plugins, like flot-tickrotor, that draw their own + // tick labels will end up with both theirs and the defaults. + + surface.removeText(layer); + + if (!axis.show || axis.ticks.length == 0) + return; + + for (var i = 0; i < axis.ticks.length; ++i) { + + tick = axis.ticks[i]; + if (!tick.label || tick.v < axis.min || tick.v > axis.max) + continue; + + if (axis.direction == "x") { + halign = "center"; + x = plotOffset.left + axis.p2c(tick.v); + if (axis.position == "bottom") { + y = box.top + box.padding; + } else { + y = box.top + box.height - box.padding; + valign = "bottom"; + } + } else { + valign = "middle"; + y = plotOffset.top + axis.p2c(tick.v); + if (axis.position == "left") { + x = box.left + box.width - box.padding; + halign = "right"; + } else { + x = box.left + box.padding; + } + } + + surface.addText(layer, x, y, tick.label, font, null, null, halign, valign); + } + }); + } + + function drawSeries(series) { + if (series.lines.show) + drawSeriesLines(series); + if (series.bars.show) + drawSeriesBars(series); + if (series.points.show) + drawSeriesPoints(series); + } + + function drawSeriesLines(series) { + function plotLine(datapoints, xoffset, yoffset, axisx, axisy) { + var points = datapoints.points, + ps = datapoints.pointsize, + prevx = null, prevy = null; + + ctx.beginPath(); + for (var i = ps; i < points.length; i += ps) { + var x1 = points[i - ps], y1 = points[i - ps + 1], + x2 = points[i], y2 = points[i + 1]; + + if (x1 == null || x2 == null) + continue; + + // clip with ymin + if (y1 <= y2 && y1 < axisy.min) { + if (y2 < axisy.min) + continue; // line segment is outside + // compute new intersection point + x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; + y1 = axisy.min; + } + else if (y2 <= y1 && y2 < axisy.min) { + if (y1 < axisy.min) + continue; + x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; + y2 = axisy.min; + } + + // clip with ymax + if (y1 >= y2 && y1 > axisy.max) { + if (y2 > axisy.max) + continue; + x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; + y1 = axisy.max; + } + else if (y2 >= y1 && y2 > axisy.max) { + if (y1 > axisy.max) + continue; + x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; + y2 = axisy.max; + } + + // clip with xmin + if (x1 <= x2 && x1 < axisx.min) { + if (x2 < axisx.min) + continue; + y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; + x1 = axisx.min; + } + else if (x2 <= x1 && x2 < axisx.min) { + if (x1 < axisx.min) + continue; + y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; + x2 = axisx.min; + } + + // clip with xmax + if (x1 >= x2 && x1 > axisx.max) { + if (x2 > axisx.max) + continue; + y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; + x1 = axisx.max; + } + else if (x2 >= x1 && x2 > axisx.max) { + if (x1 > axisx.max) + continue; + y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; + x2 = axisx.max; + } + + if (x1 != prevx || y1 != prevy) + ctx.moveTo(axisx.p2c(x1) + xoffset, axisy.p2c(y1) + yoffset); + + prevx = x2; + prevy = y2; + ctx.lineTo(axisx.p2c(x2) + xoffset, axisy.p2c(y2) + yoffset); + } + ctx.stroke(); + } + + function plotLineArea(datapoints, axisx, axisy) { + var points = datapoints.points, + ps = datapoints.pointsize, + bottom = Math.min(Math.max(0, axisy.min), axisy.max), + i = 0, top, areaOpen = false, + ypos = 1, segmentStart = 0, segmentEnd = 0; + + // we process each segment in two turns, first forward + // direction to sketch out top, then once we hit the + // end we go backwards to sketch the bottom + while (true) { + if (ps > 0 && i > points.length + ps) + break; + + i += ps; // ps is negative if going backwards + + var x1 = points[i - ps], + y1 = points[i - ps + ypos], + x2 = points[i], y2 = points[i + ypos]; + + if (areaOpen) { + if (ps > 0 && x1 != null && x2 == null) { + // at turning point + segmentEnd = i; + ps = -ps; + ypos = 2; + continue; + } + + if (ps < 0 && i == segmentStart + ps) { + // done with the reverse sweep + ctx.fill(); + areaOpen = false; + ps = -ps; + ypos = 1; + i = segmentStart = segmentEnd + ps; + continue; + } + } + + if (x1 == null || x2 == null) + continue; + + // clip x values + + // clip with xmin + if (x1 <= x2 && x1 < axisx.min) { + if (x2 < axisx.min) + continue; + y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; + x1 = axisx.min; + } + else if (x2 <= x1 && x2 < axisx.min) { + if (x1 < axisx.min) + continue; + y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1; + x2 = axisx.min; + } + + // clip with xmax + if (x1 >= x2 && x1 > axisx.max) { + if (x2 > axisx.max) + continue; + y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; + x1 = axisx.max; + } + else if (x2 >= x1 && x2 > axisx.max) { + if (x1 > axisx.max) + continue; + y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1; + x2 = axisx.max; + } + + if (!areaOpen) { + // open area + ctx.beginPath(); + ctx.moveTo(axisx.p2c(x1), axisy.p2c(bottom)); + areaOpen = true; + } + + // now first check the case where both is outside + if (y1 >= axisy.max && y2 >= axisy.max) { + ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.max)); + ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.max)); + continue; + } + else if (y1 <= axisy.min && y2 <= axisy.min) { + ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.min)); + ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.min)); + continue; + } + + // else it's a bit more complicated, there might + // be a flat maxed out rectangle first, then a + // triangular cutout or reverse; to find these + // keep track of the current x values + var x1old = x1, x2old = x2; + + // clip the y values, without shortcutting, we + // go through all cases in turn + + // clip with ymin + if (y1 <= y2 && y1 < axisy.min && y2 >= axisy.min) { + x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; + y1 = axisy.min; + } + else if (y2 <= y1 && y2 < axisy.min && y1 >= axisy.min) { + x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1; + y2 = axisy.min; + } + + // clip with ymax + if (y1 >= y2 && y1 > axisy.max && y2 <= axisy.max) { + x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; + y1 = axisy.max; + } + else if (y2 >= y1 && y2 > axisy.max && y1 <= axisy.max) { + x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1; + y2 = axisy.max; + } + + // if the x value was changed we got a rectangle + // to fill + if (x1 != x1old) { + ctx.lineTo(axisx.p2c(x1old), axisy.p2c(y1)); + // it goes to (x1, y1), but we fill that below + } + + // fill triangular section, this sometimes result + // in redundant points if (x1, y1) hasn't changed + // from previous line to, but we just ignore that + ctx.lineTo(axisx.p2c(x1), axisy.p2c(y1)); + ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2)); + + // fill the other rectangle if it's there + if (x2 != x2old) { + ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2)); + ctx.lineTo(axisx.p2c(x2old), axisy.p2c(y2)); + } + } + } + + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + ctx.lineJoin = "round"; + + var lw = series.lines.lineWidth, + sw = series.shadowSize; + // FIXME: consider another form of shadow when filling is turned on + if (lw > 0 && sw > 0) { + // draw shadow as a thick and thin line with transparency + ctx.lineWidth = sw; + ctx.strokeStyle = "rgba(0,0,0,0.1)"; + // position shadow at angle from the mid of line + var angle = Math.PI/18; + plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/2), Math.cos(angle) * (lw/2 + sw/2), series.xaxis, series.yaxis); + ctx.lineWidth = sw/2; + plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/4), Math.cos(angle) * (lw/2 + sw/4), series.xaxis, series.yaxis); + } + + ctx.lineWidth = lw; + ctx.strokeStyle = series.color; + var fillStyle = getFillStyle(series.lines, series.color, 0, plotHeight); + if (fillStyle) { + ctx.fillStyle = fillStyle; + plotLineArea(series.datapoints, series.xaxis, series.yaxis); + } + + if (lw > 0) + plotLine(series.datapoints, 0, 0, series.xaxis, series.yaxis); + ctx.restore(); + } + + function drawSeriesPoints(series) { + function plotPoints(datapoints, radius, fillStyle, offset, shadow, axisx, axisy, symbol) { + var points = datapoints.points, ps = datapoints.pointsize; + + for (var i = 0; i < points.length; i += ps) { + var x = points[i], y = points[i + 1]; + if (x == null || x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max) + continue; + + ctx.beginPath(); + x = axisx.p2c(x); + y = axisy.p2c(y) + offset; + if (symbol == "circle") + ctx.arc(x, y, radius, 0, shadow ? Math.PI : Math.PI * 2, false); + else + symbol(ctx, x, y, radius, shadow); + ctx.closePath(); + + if (fillStyle) { + ctx.fillStyle = fillStyle; + ctx.fill(); + } + ctx.stroke(); + } + } + + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + + var lw = series.points.lineWidth, + sw = series.shadowSize, + radius = series.points.radius, + symbol = series.points.symbol; + + // If the user sets the line width to 0, we change it to a very + // small value. A line width of 0 seems to force the default of 1. + // Doing the conditional here allows the shadow setting to still be + // optional even with a lineWidth of 0. + + if( lw == 0 ) + lw = 0.0001; + + if (lw > 0 && sw > 0) { + // draw shadow in two steps + var w = sw / 2; + ctx.lineWidth = w; + ctx.strokeStyle = "rgba(0,0,0,0.1)"; + plotPoints(series.datapoints, radius, null, w + w/2, true, + series.xaxis, series.yaxis, symbol); + + ctx.strokeStyle = "rgba(0,0,0,0.2)"; + plotPoints(series.datapoints, radius, null, w/2, true, + series.xaxis, series.yaxis, symbol); + } + + ctx.lineWidth = lw; + ctx.strokeStyle = series.color; + plotPoints(series.datapoints, radius, + getFillStyle(series.points, series.color), 0, false, + series.xaxis, series.yaxis, symbol); + ctx.restore(); + } + + function drawBar(x, y, b, barLeft, barRight, fillStyleCallback, axisx, axisy, c, horizontal, lineWidth) { + var left, right, bottom, top, + drawLeft, drawRight, drawTop, drawBottom, + tmp; + + // in horizontal mode, we start the bar from the left + // instead of from the bottom so it appears to be + // horizontal rather than vertical + if (horizontal) { + drawBottom = drawRight = drawTop = true; + drawLeft = false; + left = b; + right = x; + top = y + barLeft; + bottom = y + barRight; + + // account for negative bars + if (right < left) { + tmp = right; + right = left; + left = tmp; + drawLeft = true; + drawRight = false; + } + } + else { + drawLeft = drawRight = drawTop = true; + drawBottom = false; + left = x + barLeft; + right = x + barRight; + bottom = b; + top = y; + + // account for negative bars + if (top < bottom) { + tmp = top; + top = bottom; + bottom = tmp; + drawBottom = true; + drawTop = false; + } + } + + // clip + if (right < axisx.min || left > axisx.max || + top < axisy.min || bottom > axisy.max) + return; + + if (left < axisx.min) { + left = axisx.min; + drawLeft = false; + } + + if (right > axisx.max) { + right = axisx.max; + drawRight = false; + } + + if (bottom < axisy.min) { + bottom = axisy.min; + drawBottom = false; + } + + if (top > axisy.max) { + top = axisy.max; + drawTop = false; + } + + left = axisx.p2c(left); + bottom = axisy.p2c(bottom); + right = axisx.p2c(right); + top = axisy.p2c(top); + + // fill the bar + if (fillStyleCallback) { + c.fillStyle = fillStyleCallback(bottom, top); + c.fillRect(left, top, right - left, bottom - top) + } + + // draw outline + if (lineWidth > 0 && (drawLeft || drawRight || drawTop || drawBottom)) { + c.beginPath(); + + // FIXME: inline moveTo is buggy with excanvas + c.moveTo(left, bottom); + if (drawLeft) + c.lineTo(left, top); + else + c.moveTo(left, top); + if (drawTop) + c.lineTo(right, top); + else + c.moveTo(right, top); + if (drawRight) + c.lineTo(right, bottom); + else + c.moveTo(right, bottom); + if (drawBottom) + c.lineTo(left, bottom); + else + c.moveTo(left, bottom); + c.stroke(); + } + } + + function drawSeriesBars(series) { + function plotBars(datapoints, barLeft, barRight, fillStyleCallback, axisx, axisy) { + var points = datapoints.points, ps = datapoints.pointsize; + + for (var i = 0; i < points.length; i += ps) { + if (points[i] == null) + continue; + drawBar(points[i], points[i + 1], points[i + 2], barLeft, barRight, fillStyleCallback, axisx, axisy, ctx, series.bars.horizontal, series.bars.lineWidth); + } + } + + ctx.save(); + ctx.translate(plotOffset.left, plotOffset.top); + + // FIXME: figure out a way to add shadows (for instance along the right edge) + ctx.lineWidth = series.bars.lineWidth; + ctx.strokeStyle = series.color; + + var barLeft; + + switch (series.bars.align) { + case "left": + barLeft = 0; + break; + case "right": + barLeft = -series.bars.barWidth; + break; + default: + barLeft = -series.bars.barWidth / 2; + } + + var fillStyleCallback = series.bars.fill ? function (bottom, top) { return getFillStyle(series.bars, series.color, bottom, top); } : null; + plotBars(series.datapoints, barLeft, barLeft + series.bars.barWidth, fillStyleCallback, series.xaxis, series.yaxis); + ctx.restore(); + } + + function getFillStyle(filloptions, seriesColor, bottom, top) { + var fill = filloptions.fill; + if (!fill) + return null; + + if (filloptions.fillColor) + return getColorOrGradient(filloptions.fillColor, bottom, top, seriesColor); + + var c = $.color.parse(seriesColor); + c.a = typeof fill == "number" ? fill : 0.4; + c.normalize(); + return c.toString(); + } + + function insertLegend() { + + placeholder.find(".legend").remove(); + + if (!options.legend.show) + return; + + var fragments = [], entries = [], rowStarted = false, + lf = options.legend.labelFormatter, s, label; + + // Build a list of legend entries, with each having a label and a color + + for (var i = 0; i < series.length; ++i) { + s = series[i]; + if (s.label) { + label = lf ? lf(s.label, s) : s.label; + if (label) { + entries.push({ + label: label, + color: s.color + }); + } + } + } + + // Sort the legend using either the default or a custom comparator + + if (options.legend.sorted) { + if ($.isFunction(options.legend.sorted)) { + entries.sort(options.legend.sorted); + } else if (options.legend.sorted == "reverse") { + entries.reverse(); + } else { + var ascending = options.legend.sorted != "descending"; + entries.sort(function(a, b) { + return a.label == b.label ? 0 : ( + (a.label < b.label) != ascending ? 1 : -1 // Logical XOR + ); + }); + } + } + + // Generate markup for the list of entries, in their final order + + for (var i = 0; i < entries.length; ++i) { + + var entry = entries[i]; + + if (i % options.legend.noColumns == 0) { + if (rowStarted) + fragments.push('</tr>'); + fragments.push('<tr>'); + rowStarted = true; + } + + fragments.push( + '<td class="legendColorBox"><div style="border:1px solid ' + options.legend.labelBoxBorderColor + ';padding:1px"><div style="width:4px;height:0;border:5px solid ' + entry.color + ';overflow:hidden"></div></div></td>' + + '<td class="legendLabel">' + entry.label + '</td>' + ); + } + + if (rowStarted) + fragments.push('</tr>'); + + if (fragments.length == 0) + return; + + var table = '<table style="font-size:smaller;color:' + options.grid.color + '">' + fragments.join("") + '</table>'; + if (options.legend.container != null) + $(options.legend.container).html(table); + else { + var pos = "", + p = options.legend.position, + m = options.legend.margin; + if (m[0] == null) + m = [m, m]; + if (p.charAt(0) == "n") + pos += 'top:' + (m[1] + plotOffset.top) + 'px;'; + else if (p.charAt(0) == "s") + pos += 'bottom:' + (m[1] + plotOffset.bottom) + 'px;'; + if (p.charAt(1) == "e") + pos += 'right:' + (m[0] + plotOffset.right) + 'px;'; + else if (p.charAt(1) == "w") + pos += 'left:' + (m[0] + plotOffset.left) + 'px;'; + var legend = $('<div class="legend">' + table.replace('style="', 'style="position:absolute;' + pos +';') + '</div>').appendTo(placeholder); + if (options.legend.backgroundOpacity != 0.0) { + // put in the transparent background + // separately to avoid blended labels and + // label boxes + var c = options.legend.backgroundColor; + if (c == null) { + c = options.grid.backgroundColor; + if (c && typeof c == "string") + c = $.color.parse(c); + else + c = $.color.extract(legend, 'background-color'); + c.a = 1; + c = c.toString(); + } + var div = legend.children(); + $('<div style="position:absolute;width:' + div.width() + 'px;height:' + div.height() + 'px;' + pos +'background-color:' + c + ';"> </div>').prependTo(legend).css('opacity', options.legend.backgroundOpacity); + } + } + } + + + // interactive features + + var highlights = [], + redrawTimeout = null; + + // returns the data item the mouse is over, or null if none is found + function findNearbyItem(mouseX, mouseY, seriesFilter) { + var maxDistance = options.grid.mouseActiveRadius, + smallestDistance = maxDistance * maxDistance + 1, + item = null, foundPoint = false, i, j, ps; + + for (i = series.length - 1; i >= 0; --i) { + if (!seriesFilter(series[i])) + continue; + + var s = series[i], + axisx = s.xaxis, + axisy = s.yaxis, + points = s.datapoints.points, + mx = axisx.c2p(mouseX), // precompute some stuff to make the loop faster + my = axisy.c2p(mouseY), + maxx = maxDistance / axisx.scale, + maxy = maxDistance / axisy.scale; + + ps = s.datapoints.pointsize; + // with inverse transforms, we can't use the maxx/maxy + // optimization, sadly + if (axisx.options.inverseTransform) + maxx = Number.MAX_VALUE; + if (axisy.options.inverseTransform) + maxy = Number.MAX_VALUE; + + if (s.lines.show || s.points.show) { + for (j = 0; j < points.length; j += ps) { + var x = points[j], y = points[j + 1]; + if (x == null) + continue; + + // For points and lines, the cursor must be within a + // certain distance to the data point + if (x - mx > maxx || x - mx < -maxx || + y - my > maxy || y - my < -maxy) + continue; + + // We have to calculate distances in pixels, not in + // data units, because the scales of the axes may be different + var dx = Math.abs(axisx.p2c(x) - mouseX), + dy = Math.abs(axisy.p2c(y) - mouseY), + dist = dx * dx + dy * dy; // we save the sqrt + + // use <= to ensure last point takes precedence + // (last generally means on top of) + if (dist < smallestDistance) { + smallestDistance = dist; + item = [i, j / ps]; + } + } + } + + if (s.bars.show && !item) { // no other point can be nearby + + var barLeft, barRight; + + switch (s.bars.align) { + case "left": + barLeft = 0; + break; + case "right": + barLeft = -s.bars.barWidth; + break; + default: + barLeft = -s.bars.barWidth / 2; + } + + barRight = barLeft + s.bars.barWidth; + + for (j = 0; j < points.length; j += ps) { + var x = points[j], y = points[j + 1], b = points[j + 2]; + if (x == null) + continue; + + // for a bar graph, the cursor must be inside the bar + if (series[i].bars.horizontal ? + (mx <= Math.max(b, x) && mx >= Math.min(b, x) && + my >= y + barLeft && my <= y + barRight) : + (mx >= x + barLeft && mx <= x + barRight && + my >= Math.min(b, y) && my <= Math.max(b, y))) + item = [i, j / ps]; + } + } + } + + if (item) { + i = item[0]; + j = item[1]; + ps = series[i].datapoints.pointsize; + + return { datapoint: series[i].datapoints.points.slice(j * ps, (j + 1) * ps), + dataIndex: j, + series: series[i], + seriesIndex: i }; + } + + return null; + } + + function onMouseMove(e) { + if (options.grid.hoverable) + triggerClickHoverEvent("plothover", e, + function (s) { return s["hoverable"] != false; }); + } + + function onMouseLeave(e) { + if (options.grid.hoverable) + triggerClickHoverEvent("plothover", e, + function (s) { return false; }); + } + + function onClick(e) { + triggerClickHoverEvent("plotclick", e, + function (s) { return s["clickable"] != false; }); + } + + // trigger click or hover event (they send the same parameters + // so we share their code) + function triggerClickHoverEvent(eventname, event, seriesFilter) { + var offset = eventHolder.offset(), + canvasX = event.pageX - offset.left - plotOffset.left, + canvasY = event.pageY - offset.top - plotOffset.top, + pos = canvasToAxisCoords({ left: canvasX, top: canvasY }); + + pos.pageX = event.pageX; + pos.pageY = event.pageY; + + var item = findNearbyItem(canvasX, canvasY, seriesFilter); + + if (item) { + // fill in mouse pos for any listeners out there + item.pageX = parseInt(item.series.xaxis.p2c(item.datapoint[0]) + offset.left + plotOffset.left, 10); + item.pageY = parseInt(item.series.yaxis.p2c(item.datapoint[1]) + offset.top + plotOffset.top, 10); + } + + if (options.grid.autoHighlight) { + // clear auto-highlights + for (var i = 0; i < highlights.length; ++i) { + var h = highlights[i]; + if (h.auto == eventname && + !(item && h.series == item.series && + h.point[0] == item.datapoint[0] && + h.point[1] == item.datapoint[1])) + unhighlight(h.series, h.point); + } + + if (item) + highlight(item.series, item.datapoint, eventname); + } + + placeholder.trigger(eventname, [ pos, item ]); + } + + function triggerRedrawOverlay() { + var t = options.interaction.redrawOverlayInterval; + if (t == -1) { // skip event queue + drawOverlay(); + return; + } + + if (!redrawTimeout) + redrawTimeout = setTimeout(drawOverlay, t); + } + + function drawOverlay() { + redrawTimeout = null; + + // draw highlights + octx.save(); + overlay.clear(); + octx.translate(plotOffset.left, plotOffset.top); + + var i, hi; + for (i = 0; i < highlights.length; ++i) { + hi = highlights[i]; + + if (hi.series.bars.show) + drawBarHighlight(hi.series, hi.point); + else + drawPointHighlight(hi.series, hi.point); + } + octx.restore(); + + executeHooks(hooks.drawOverlay, [octx]); + } + + function highlight(s, point, auto) { + if (typeof s == "number") + s = series[s]; + + if (typeof point == "number") { + var ps = s.datapoints.pointsize; + point = s.datapoints.points.slice(ps * point, ps * (point + 1)); + } + + var i = indexOfHighlight(s, point); + if (i == -1) { + highlights.push({ series: s, point: point, auto: auto }); + + triggerRedrawOverlay(); + } + else if (!auto) + highlights[i].auto = false; + } + + function unhighlight(s, point) { + if (s == null && point == null) { + highlights = []; + triggerRedrawOverlay(); + return; + } + + if (typeof s == "number") + s = series[s]; + + if (typeof point == "number") { + var ps = s.datapoints.pointsize; + point = s.datapoints.points.slice(ps * point, ps * (point + 1)); + } + + var i = indexOfHighlight(s, point); + if (i != -1) { + highlights.splice(i, 1); + + triggerRedrawOverlay(); + } + } + + function indexOfHighlight(s, p) { + for (var i = 0; i < highlights.length; ++i) { + var h = highlights[i]; + if (h.series == s && h.point[0] == p[0] + && h.point[1] == p[1]) + return i; + } + return -1; + } + + function drawPointHighlight(series, point) { + var x = point[0], y = point[1], + axisx = series.xaxis, axisy = series.yaxis, + highlightColor = (typeof series.highlightColor === "string") ? series.highlightColor : $.color.parse(series.color).scale('a', 0.5).toString(); + + if (x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max) + return; + + var pointRadius = series.points.radius + series.points.lineWidth / 2; + octx.lineWidth = pointRadius; + octx.strokeStyle = highlightColor; + var radius = 1.5 * pointRadius; + x = axisx.p2c(x); + y = axisy.p2c(y); + + octx.beginPath(); + if (series.points.symbol == "circle") + octx.arc(x, y, radius, 0, 2 * Math.PI, false); + else + series.points.symbol(octx, x, y, radius, false); + octx.closePath(); + octx.stroke(); + } + + function drawBarHighlight(series, point) { + var highlightColor = (typeof series.highlightColor === "string") ? series.highlightColor : $.color.parse(series.color).scale('a', 0.5).toString(), + fillStyle = highlightColor, + barLeft; + + switch (series.bars.align) { + case "left": + barLeft = 0; + break; + case "right": + barLeft = -series.bars.barWidth; + break; + default: + barLeft = -series.bars.barWidth / 2; + } + + octx.lineWidth = series.bars.lineWidth; + octx.strokeStyle = highlightColor; + + drawBar(point[0], point[1], point[2] || 0, barLeft, barLeft + series.bars.barWidth, + function () { return fillStyle; }, series.xaxis, series.yaxis, octx, series.bars.horizontal, series.bars.lineWidth); + } + + function getColorOrGradient(spec, bottom, top, defaultColor) { + if (typeof spec == "string") + return spec; + else { + // assume this is a gradient spec; IE currently only + // supports a simple vertical gradient properly, so that's + // what we support too + var gradient = ctx.createLinearGradient(0, top, 0, bottom); + + for (var i = 0, l = spec.colors.length; i < l; ++i) { + var c = spec.colors[i]; + if (typeof c != "string") { + var co = $.color.parse(defaultColor); + if (c.brightness != null) + co = co.scale('rgb', c.brightness); + if (c.opacity != null) + co.a *= c.opacity; + c = co.toString(); + } + gradient.addColorStop(i / (l - 1), c); + } + + return gradient; + } + } + } + + // Add the plot function to the top level of the jQuery object + + $.plot = function(placeholder, data, options) { + //var t0 = new Date(); + var plot = new Plot($(placeholder), data, options, $.plot.plugins); + //(window.console ? console.log : alert)("time used (msecs): " + ((new Date()).getTime() - t0.getTime())); + return plot; + }; + + $.plot.version = "0.8.2-alpha"; + + $.plot.plugins = []; + + // Also add the plot function as a chainable property + + $.fn.plot = function(data, options) { + return this.each(function() { + $.plot(this, data, options); + }); + }; + + // round to nearby lower multiple of base + function floorInBase(n, base) { + return base * Math.floor(n / base); + } + +})(jQuery); diff --git a/public/javascripts/jquery.flot.min.js b/public/javascripts/jquery.flot.min.js deleted file mode 100644 index 3706512c4..000000000 --- a/public/javascripts/jquery.flot.min.js +++ /dev/null @@ -1,29 +0,0 @@ -/* Javascript plotting library for jQuery, version 0.8.1. - -Copyright (c) 2007-2013 IOLA and Ole Laursen. -Licensed under the MIT license. - -*/// first an inline dependency, jquery.colorhelpers.js, we inline it here -// for convenience -/* Plugin for jQuery for working with colors. - * - * Version 1.1. - * - * Inspiration from jQuery color animation plugin by John Resig. - * - * Released under the MIT license by Ole Laursen, October 2009. - * - * Examples: - * - * $.color.parse("#fff").scale('rgb', 0.25).add('a', -0.5).toString() - * var c = $.color.extract($("#mydiv"), 'background-color'); - * console.log(c.r, c.g, c.b, c.a); - * $.color.make(100, 50, 25, 0.4).toString() // returns "rgba(100,50,25,0.4)" - * - * Note that .scale() and .add() return the same modified object - * instead of making a new one. - * - * V. 1.1: Fix error handling so e.g. parsing an empty string does - * produce a color rather than just crashing. - */(function(e){e.color={},e.color.make=function(t,n,r,i){var s={};return s.r=t||0,s.g=n||0,s.b=r||0,s.a=i!=null?i:1,s.add=function(e,t){for(var n=0;n<e.length;++n)s[e.charAt(n)]+=t;return s.normalize()},s.scale=function(e,t){for(var n=0;n<e.length;++n)s[e.charAt(n)]*=t;return s.normalize()},s.toString=function(){return s.a>=1?"rgb("+[s.r,s.g,s.b].join(",")+")":"rgba("+[s.r,s.g,s.b,s.a].join(",")+")"},s.normalize=function(){function e(e,t,n){return t<e?e:t>n?n:t}return s.r=e(0,parseInt(s.r),255),s.g=e(0,parseInt(s.g),255),s.b=e(0,parseInt(s.b),255),s.a=e(0,s.a,1),s},s.clone=function(){return e.color.make(s.r,s.b,s.g,s.a)},s.normalize()},e.color.extract=function(t,n){var r;do{r=t.css(n).toLowerCase();if(r!=""&&r!="transparent")break;t=t.parent()}while(!e.nodeName(t.get(0),"body"));return r=="rgba(0, 0, 0, 0)"&&(r="transparent"),e.color.parse(r)},e.color.parse=function(n){var r,i=e.color.make;if(r=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(n))return i(parseInt(r[1],10),parseInt(r[2],10),parseInt(r[3],10));if(r=/rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(n))return i(parseInt(r[1],10),parseInt(r[2],10),parseInt(r[3],10),parseFloat(r[4]));if(r=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(n))return i(parseFloat(r[1])*2.55,parseFloat(r[2])*2.55,parseFloat(r[3])*2.55);if(r=/rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(n))return i(parseFloat(r[1])*2.55,parseFloat(r[2])*2.55,parseFloat(r[3])*2.55,parseFloat(r[4]));if(r=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(n))return i(parseInt(r[1],16),parseInt(r[2],16),parseInt(r[3],16));if(r=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(n))return i(parseInt(r[1]+r[1],16),parseInt(r[2]+r[2],16),parseInt(r[3]+r[3],16));var s=e.trim(n).toLowerCase();return s=="transparent"?i(255,255,255,0):(r=t[s]||[0,0,0],i(r[0],r[1],r[2]))};var t={aqua:[0,255,255],azure:[240,255,255],beige:[245,245,220],black:[0,0,0],blue:[0,0,255],brown:[165,42,42],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgrey:[169,169,169],darkgreen:[0,100,0],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkviolet:[148,0,211],fuchsia:[255,0,255],gold:[255,215,0],green:[0,128,0],indigo:[75,0,130],khaki:[240,230,140],lightblue:[173,216,230],lightcyan:[224,255,255],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightyellow:[255,255,224],lime:[0,255,0],magenta:[255,0,255],maroon:[128,0,0],navy:[0,0,128],olive:[128,128,0],orange:[255,165,0],pink:[255,192,203],purple:[128,0,128],violet:[128,0,128],red:[255,0,0],silver:[192,192,192],white:[255,255,255],yellow:[255,255,0]}})(jQuery),function(e){function n(t,n){var r=n.children("."+t)[0];if(r==null){r=document.createElement("canvas"),r.className=t,e(r).css({direction:"ltr",position:"absolute",left:0,top:0}).appendTo(n);if(!r.getContext){if(!window.G_vmlCanvasManager)throw new Error("Canvas is not available. 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