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c3_chart_internal_fn.initRegion = function () {
var $$ = this;
$$.region = $$.main.append('g')
.attr("clip-path", $$.clipPath)
.attr("class", CLASS.regions);
};
c3_chart_internal_fn.updateRegion = function (duration) {
var $$ = this, config = $$.config;
// hide if arc type
$$.region.style('visibility', $$.hasArcType() ? 'hidden' : 'visible');
$$.mainRegion = $$.main.select('.' + CLASS.regions).selectAll('.' + CLASS.region)
.data(config.regions);
$$.mainRegion.enter().append('g')
.attr('class', $$.classRegion.bind($$))
.append('rect')
.style("fill-opacity", 0);
$$.mainRegion.exit().transition().duration(duration)
.style("opacity", 0)
.remove();
};
c3_chart_internal_fn.redrawRegion = function (withTransition) {
var $$ = this,
regions = $$.mainRegion.selectAll('rect'),
x = $$.regionX.bind($$),
y = $$.regionY.bind($$),
w = $$.regionWidth.bind($$),
h = $$.regionHeight.bind($$);
return [
(withTransition ? regions.transition() : regions)
.attr("x", x)
.attr("y", y)
.attr("width", w)
.attr("height", h)
.style("fill-opacity", function (d) { return isValue(d.opacity) ? d.opacity : 0.1; })
];
};
c3_chart_internal_fn.regionX = function (d) {
var $$ = this, config = $$.config,
xPos, yScale = d.axis === 'y' ? $$.y : $$.y2;
if (d.axis === 'y' || d.axis === 'y2') {
xPos = config.axis_rotated ? ('start' in d ? yScale(d.start) : 0) : 0;
} else {
xPos = config.axis_rotated ? 0 : ('start' in d ? $$.x($$.isTimeSeries() ? $$.parseDate(d.start) : d.start) : 0);
}
return xPos;
};
c3_chart_internal_fn.regionY = function (d) {
var $$ = this, config = $$.config,
yPos, yScale = d.axis === 'y' ? $$.y : $$.y2;
if (d.axis === 'y' || d.axis === 'y2') {
yPos = config.axis_rotated ? 0 : ('end' in d ? yScale(d.end) : 0);
} else {
yPos = config.axis_rotated ? ('start' in d ? $$.x($$.isTimeSeries() ? $$.parseDate(d.start) : d.start) : 0) : 0;
}
return yPos;
};
c3_chart_internal_fn.regionWidth = function (d) {
var $$ = this, config = $$.config,
start = $$.regionX(d), end, yScale = d.axis === 'y' ? $$.y : $$.y2;
if (d.axis === 'y' || d.axis === 'y2') {
end = config.axis_rotated ? ('end' in d ? yScale(d.end) : $$.width) : $$.width;
} else {
end = config.axis_rotated ? $$.width : ('end' in d ? $$.x($$.isTimeSeries() ? $$.parseDate(d.end) : d.end) : $$.width);
}
return end < start ? 0 : end - start;
};
c3_chart_internal_fn.regionHeight = function (d) {
var $$ = this, config = $$.config,
start = this.regionY(d), end, yScale = d.axis === 'y' ? $$.y : $$.y2;
if (d.axis === 'y' || d.axis === 'y2') {
end = config.axis_rotated ? $$.height : ('start' in d ? yScale(d.start) : $$.height);
} else {
end = config.axis_rotated ? ('end' in d ? $$.x($$.isTimeSeries() ? $$.parseDate(d.end) : d.end) : $$.height) : $$.height;
}
return end < start ? 0 : end - start;
};
c3_chart_internal_fn.isRegionOnX = function (d) {
return !d.axis || d.axis === 'x';
};
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