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Viewing File: arc.js
import CLASS from './class';
import { c3_chart_internal_fn } from './core';
import { isFunction } from './util';
c3_chart_internal_fn.initPie = function () {
var $$ = this, d3 = $$.d3;
$$.pie = d3.layout.pie().value(function (d) {
return d.values.reduce(function (a, b) { return a + b.value; }, 0);
});
$$.pie.sort($$.getOrderFunction() || null);
};
c3_chart_internal_fn.updateRadius = function () {
var $$ = this, config = $$.config,
w = config.gauge_width || config.donut_width;
$$.radiusExpanded = Math.min($$.arcWidth, $$.arcHeight) / 2;
$$.radius = $$.radiusExpanded * 0.95;
$$.innerRadiusRatio = w ? ($$.radius - w) / $$.radius : 0.6;
$$.innerRadius = $$.hasType('donut') || $$.hasType('gauge') ? $$.radius * $$.innerRadiusRatio : 0;
};
c3_chart_internal_fn.updateArc = function () {
var $$ = this;
$$.svgArc = $$.getSvgArc();
$$.svgArcExpanded = $$.getSvgArcExpanded();
$$.svgArcExpandedSub = $$.getSvgArcExpanded(0.98);
};
c3_chart_internal_fn.updateAngle = function (d) {
var $$ = this, config = $$.config,
found = false, index = 0,
gMin, gMax, gTic, gValue;
if (!config) {
return null;
}
$$.pie($$.filterTargetsToShow($$.data.targets)).forEach(function (t) {
if (! found && t.data.id === d.data.id) {
found = true;
d = t;
d.index = index;
}
index++;
});
if (isNaN(d.startAngle)) {
d.startAngle = 0;
}
if (isNaN(d.endAngle)) {
d.endAngle = d.startAngle;
}
if ($$.isGaugeType(d.data)) {
gMin = config.gauge_min;
gMax = config.gauge_max;
gTic = (Math.PI * (config.gauge_fullCircle ? 2 : 1)) / (gMax - gMin);
gValue = d.value < gMin ? 0 : d.value < gMax ? d.value - gMin : (gMax - gMin);
d.startAngle = config.gauge_startingAngle;
d.endAngle = d.startAngle + gTic * gValue;
}
return found ? d : null;
};
c3_chart_internal_fn.getSvgArc = function () {
var $$ = this,
arc = $$.d3.svg.arc().outerRadius($$.radius).innerRadius($$.innerRadius),
newArc = function (d, withoutUpdate) {
var updated;
if (withoutUpdate) { return arc(d); } // for interpolate
updated = $$.updateAngle(d);
return updated ? arc(updated) : "M 0 0";
};
// TODO: extends all function
newArc.centroid = arc.centroid;
return newArc;
};
c3_chart_internal_fn.getSvgArcExpanded = function (rate) {
var $$ = this,
arc = $$.d3.svg.arc().outerRadius($$.radiusExpanded * (rate ? rate : 1)).innerRadius($$.innerRadius);
return function (d) {
var updated = $$.updateAngle(d);
return updated ? arc(updated) : "M 0 0";
};
};
c3_chart_internal_fn.getArc = function (d, withoutUpdate, force) {
return force || this.isArcType(d.data) ? this.svgArc(d, withoutUpdate) : "M 0 0";
};
c3_chart_internal_fn.transformForArcLabel = function (d) {
var $$ = this, config = $$.config,
updated = $$.updateAngle(d), c, x, y, h, ratio, translate = "";
if (updated && !$$.hasType('gauge')) {
c = this.svgArc.centroid(updated);
x = isNaN(c[0]) ? 0 : c[0];
y = isNaN(c[1]) ? 0 : c[1];
h = Math.sqrt(x * x + y * y);
if ($$.hasType('donut') && config.donut_label_ratio) {
ratio = isFunction(config.donut_label_ratio) ? config.donut_label_ratio(d, $$.radius, h) : config.donut_label_ratio;
} else if ($$.hasType('pie') && config.pie_label_ratio) {
ratio = isFunction(config.pie_label_ratio) ? config.pie_label_ratio(d, $$.radius, h) : config.pie_label_ratio;
} else {
ratio = $$.radius && h ? (36 / $$.radius > 0.375 ? 1.175 - 36 / $$.radius : 0.8) * $$.radius / h : 0;
}
translate = "translate(" + (x * ratio) + ',' + (y * ratio) + ")";
}
return translate;
};
c3_chart_internal_fn.getArcRatio = function (d) {
var $$ = this,
config = $$.config,
whole = Math.PI * ($$.hasType('gauge') && !config.gauge_fullCircle ? 1 : 2);
return d ? (d.endAngle - d.startAngle) / whole : null;
};
c3_chart_internal_fn.convertToArcData = function (d) {
return this.addName({
id: d.data.id,
value: d.value,
ratio: this.getArcRatio(d),
index: d.index
});
};
c3_chart_internal_fn.textForArcLabel = function (d) {
var $$ = this,
updated, value, ratio, id, format;
if (! $$.shouldShowArcLabel()) { return ""; }
updated = $$.updateAngle(d);
value = updated ? updated.value : null;
ratio = $$.getArcRatio(updated);
id = d.data.id;
if (! $$.hasType('gauge') && ! $$.meetsArcLabelThreshold(ratio)) { return ""; }
format = $$.getArcLabelFormat();
return format ? format(value, ratio, id) : $$.defaultArcValueFormat(value, ratio);
};
c3_chart_internal_fn.textForGaugeMinMax = function (value, isMax) {
var $$ = this,
format = $$.getGaugeLabelExtents();
return format ? format(value, isMax) : value;
};
c3_chart_internal_fn.expandArc = function (targetIds) {
var $$ = this, interval;
// MEMO: avoid to cancel transition
if ($$.transiting) {
interval = window.setInterval(function () {
if (!$$.transiting) {
window.clearInterval(interval);
if ($$.legend.selectAll('.c3-legend-item-focused').size() > 0) {
$$.expandArc(targetIds);
}
}
}, 10);
return;
}
targetIds = $$.mapToTargetIds(targetIds);
$$.svg.selectAll($$.selectorTargets(targetIds, '.' + CLASS.chartArc)).each(function (d) {
if (! $$.shouldExpand(d.data.id)) { return; }
$$.d3.select(this).selectAll('path')
.transition().duration($$.expandDuration(d.data.id))
.attr("d", $$.svgArcExpanded)
.transition().duration($$.expandDuration(d.data.id) * 2)
.attr("d", $$.svgArcExpandedSub)
.each(function (d) {
if ($$.isDonutType(d.data)) {
// callback here
}
});
});
};
c3_chart_internal_fn.unexpandArc = function (targetIds) {
var $$ = this;
if ($$.transiting) { return; }
targetIds = $$.mapToTargetIds(targetIds);
$$.svg.selectAll($$.selectorTargets(targetIds, '.' + CLASS.chartArc)).selectAll('path')
.transition().duration(function(d) {
return $$.expandDuration(d.data.id);
})
.attr("d", $$.svgArc);
$$.svg.selectAll('.' + CLASS.arc);
};
c3_chart_internal_fn.expandDuration = function (id) {
var $$ = this, config = $$.config;
if ($$.isDonutType(id)) {
return config.donut_expand_duration;
} else if ($$.isGaugeType(id)) {
return config.gauge_expand_duration;
} else if ($$.isPieType(id)) {
return config.pie_expand_duration;
} else {
return 50;
}
};
c3_chart_internal_fn.shouldExpand = function (id) {
var $$ = this, config = $$.config;
return ($$.isDonutType(id) && config.donut_expand) ||
($$.isGaugeType(id) && config.gauge_expand) ||
($$.isPieType(id) && config.pie_expand);
};
c3_chart_internal_fn.shouldShowArcLabel = function () {
var $$ = this, config = $$.config, shouldShow = true;
if ($$.hasType('donut')) {
shouldShow = config.donut_label_show;
} else if ($$.hasType('pie')) {
shouldShow = config.pie_label_show;
}
// when gauge, always true
return shouldShow;
};
c3_chart_internal_fn.meetsArcLabelThreshold = function (ratio) {
var $$ = this, config = $$.config,
threshold = $$.hasType('donut') ? config.donut_label_threshold : config.pie_label_threshold;
return ratio >= threshold;
};
c3_chart_internal_fn.getArcLabelFormat = function () {
var $$ = this, config = $$.config,
format = config.pie_label_format;
if ($$.hasType('gauge')) {
format = config.gauge_label_format;
} else if ($$.hasType('donut')) {
format = config.donut_label_format;
}
return format;
};
c3_chart_internal_fn.getGaugeLabelExtents = function () {
var $$ = this, config = $$.config;
return config.gauge_label_extents;
};
c3_chart_internal_fn.getArcTitle = function () {
var $$ = this;
return $$.hasType('donut') ? $$.config.donut_title : "";
};
c3_chart_internal_fn.updateTargetsForArc = function (targets) {
var $$ = this, main = $$.main,
mainPieUpdate, mainPieEnter,
classChartArc = $$.classChartArc.bind($$),
classArcs = $$.classArcs.bind($$),
classFocus = $$.classFocus.bind($$);
mainPieUpdate = main.select('.' + CLASS.chartArcs).selectAll('.' + CLASS.chartArc)
.data($$.pie(targets))
.attr("class", function (d) { return classChartArc(d) + classFocus(d.data); });
mainPieEnter = mainPieUpdate.enter().append("g")
.attr("class", classChartArc);
mainPieEnter.append('g')
.attr('class', classArcs);
mainPieEnter.append("text")
.attr("dy", $$.hasType('gauge') ? "-.1em" : ".35em")
.style("opacity", 0)
.style("text-anchor", "middle")
.style("pointer-events", "none");
// MEMO: can not keep same color..., but not bad to update color in redraw
//mainPieUpdate.exit().remove();
};
c3_chart_internal_fn.initArc = function () {
var $$ = this;
$$.arcs = $$.main.select('.' + CLASS.chart).append("g")
.attr("class", CLASS.chartArcs)
.attr("transform", $$.getTranslate('arc'));
$$.arcs.append('text')
.attr('class', CLASS.chartArcsTitle)
.style("text-anchor", "middle")
.text($$.getArcTitle());
};
c3_chart_internal_fn.redrawArc = function (duration, durationForExit, withTransform) {
var $$ = this, d3 = $$.d3, config = $$.config, main = $$.main,
mainArc;
mainArc = main.selectAll('.' + CLASS.arcs).selectAll('.' + CLASS.arc)
.data($$.arcData.bind($$));
mainArc.enter().append('path')
.attr("class", $$.classArc.bind($$))
.style("fill", function (d) { return $$.color(d.data); })
.style("cursor", function (d) { return config.interaction_enabled && config.data_selection_isselectable(d) ? "pointer" : null; })
.each(function (d) {
if ($$.isGaugeType(d.data)) {
d.startAngle = d.endAngle = config.gauge_startingAngle;
}
this._current = d;
});
mainArc
.attr("transform", function (d) { return !$$.isGaugeType(d.data) && withTransform ? "scale(0)" : ""; })
.on('mouseover', config.interaction_enabled ? function (d) {
var updated, arcData;
if ($$.transiting) { // skip while transiting
return;
}
updated = $$.updateAngle(d);
if (updated) {
arcData = $$.convertToArcData(updated);
// transitions
$$.expandArc(updated.data.id);
$$.api.focus(updated.data.id);
$$.toggleFocusLegend(updated.data.id, true);
$$.config.data_onmouseover(arcData, this);
}
} : null)
.on('mousemove', config.interaction_enabled ? function (d) {
var updated = $$.updateAngle(d), arcData, selectedData;
if (updated) {
arcData = $$.convertToArcData(updated),
selectedData = [arcData];
$$.showTooltip(selectedData, this);
}
} : null)
.on('mouseout', config.interaction_enabled ? function (d) {
var updated, arcData;
if ($$.transiting) { // skip while transiting
return;
}
updated = $$.updateAngle(d);
if (updated) {
arcData = $$.convertToArcData(updated);
// transitions
$$.unexpandArc(updated.data.id);
$$.api.revert();
$$.revertLegend();
$$.hideTooltip();
$$.config.data_onmouseout(arcData, this);
}
} : null)
.on('click', config.interaction_enabled ? function (d, i) {
var updated = $$.updateAngle(d), arcData;
if (updated) {
arcData = $$.convertToArcData(updated);
if ($$.toggleShape) {
$$.toggleShape(this, arcData, i);
}
$$.config.data_onclick.call($$.api, arcData, this);
}
} : null)
.each(function () { $$.transiting = true; })
.transition().duration(duration)
.attrTween("d", function (d) {
var updated = $$.updateAngle(d), interpolate;
if (! updated) {
return function () { return "M 0 0"; };
}
// if (this._current === d) {
// this._current = {
// startAngle: Math.PI*2,
// endAngle: Math.PI*2,
// };
// }
if (isNaN(this._current.startAngle)) {
this._current.startAngle = 0;
}
if (isNaN(this._current.endAngle)) {
this._current.endAngle = this._current.startAngle;
}
interpolate = d3.interpolate(this._current, updated);
this._current = interpolate(0);
return function (t) {
var interpolated = interpolate(t);
interpolated.data = d.data; // data.id will be updated by interporator
return $$.getArc(interpolated, true);
};
})
.attr("transform", withTransform ? "scale(1)" : "")
.style("fill", function (d) {
return $$.levelColor ? $$.levelColor(d.data.values[0].value) : $$.color(d.data.id);
}) // Where gauge reading color would receive customization.
.call($$.endall, function () {
$$.transiting = false;
});
mainArc.exit().transition().duration(durationForExit)
.style('opacity', 0)
.remove();
main.selectAll('.' + CLASS.chartArc).select('text')
.style("opacity", 0)
.attr('class', function (d) { return $$.isGaugeType(d.data) ? CLASS.gaugeValue : ''; })
.text($$.textForArcLabel.bind($$))
.attr("transform", $$.transformForArcLabel.bind($$))
.style('font-size', function (d) { return $$.isGaugeType(d.data) ? Math.round($$.radius / 5) + 'px' : ''; })
.transition().duration(duration)
.style("opacity", function (d) { return $$.isTargetToShow(d.data.id) && $$.isArcType(d.data) ? 1 : 0; });
main.select('.' + CLASS.chartArcsTitle)
.style("opacity", $$.hasType('donut') || $$.hasType('gauge') ? 1 : 0);
if ($$.hasType('gauge')) {
$$.arcs.select('.' + CLASS.chartArcsBackground)
.attr("d", function () {
var d = {
data: [{value: config.gauge_max}],
startAngle: config.gauge_startingAngle,
endAngle: -1 * config.gauge_startingAngle
};
return $$.getArc(d, true, true);
});
$$.arcs.select('.' + CLASS.chartArcsGaugeUnit)
.attr("dy", ".75em")
.text(config.gauge_label_show ? config.gauge_units : '');
$$.arcs.select('.' + CLASS.chartArcsGaugeMin)
.attr("dx", -1 * ($$.innerRadius + (($$.radius - $$.innerRadius) / (config.gauge_fullCircle ? 1 : 2))) + "px")
.attr("dy", "1.2em")
.text(config.gauge_label_show ? $$.textForGaugeMinMax(config.gauge_min, false) : '');
$$.arcs.select('.' + CLASS.chartArcsGaugeMax)
.attr("dx", $$.innerRadius + (($$.radius - $$.innerRadius) / (config.gauge_fullCircle ? 1 : 2)) + "px")
.attr("dy", "1.2em")
.text(config.gauge_label_show ? $$.textForGaugeMinMax(config.gauge_max, true) : '');
}
};
c3_chart_internal_fn.initGauge = function () {
var arcs = this.arcs;
if (this.hasType('gauge')) {
arcs.append('path')
.attr("class", CLASS.chartArcsBackground);
arcs.append("text")
.attr("class", CLASS.chartArcsGaugeUnit)
.style("text-anchor", "middle")
.style("pointer-events", "none");
arcs.append("text")
.attr("class", CLASS.chartArcsGaugeMin)
.style("text-anchor", "middle")
.style("pointer-events", "none");
arcs.append("text")
.attr("class", CLASS.chartArcsGaugeMax)
.style("text-anchor", "middle")
.style("pointer-events", "none");
}
};
c3_chart_internal_fn.getGaugeLabelHeight = function () {
return this.config.gauge_label_show ? 20 : 0;
};