You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
275 lines
9.0 KiB
275 lines
9.0 KiB
/**
|
|
* @license
|
|
* Highcharts funnel module, Beta
|
|
*
|
|
* (c) 2010-2012 Torstein Hønsi
|
|
*
|
|
* License: www.highcharts.com/license
|
|
*/
|
|
|
|
/*global Highcharts */
|
|
(function (Highcharts) {
|
|
'use strict';
|
|
|
|
// create shortcuts
|
|
var defaultOptions = Highcharts.getOptions(),
|
|
defaultPlotOptions = defaultOptions.plotOptions,
|
|
seriesTypes = Highcharts.seriesTypes,
|
|
merge = Highcharts.merge,
|
|
noop = function () { },
|
|
each = Highcharts.each;
|
|
|
|
// set default options
|
|
defaultPlotOptions.funnel = merge(defaultPlotOptions.pie, {
|
|
center: ['50%', '50%'],
|
|
width: '90%',
|
|
neckWidth: '30%',
|
|
height: '100%',
|
|
neckHeight: '25%',
|
|
|
|
dataLabels: {
|
|
//position: 'right',
|
|
connectorWidth: 1,
|
|
connectorColor: '#606060'
|
|
},
|
|
size: true, // to avoid adapting to data label size in Pie.drawDataLabels
|
|
states: {
|
|
select: {
|
|
color: '#C0C0C0',
|
|
borderColor: '#000000',
|
|
shadow: false
|
|
}
|
|
}
|
|
});
|
|
|
|
seriesTypes.funnel = Highcharts.extendClass(seriesTypes.pie, {
|
|
type: 'funnel',
|
|
animate: noop,
|
|
|
|
/**
|
|
* Overrides the pie translate method
|
|
*/
|
|
translate: function () {
|
|
var
|
|
// Get positions - either an integer or a percentage string must be given
|
|
getLength = function (length, relativeTo) {
|
|
return (/%$/).test(length) ?
|
|
relativeTo * parseInt(length, 10) / 100 :
|
|
parseInt(length, 10);
|
|
},
|
|
|
|
sum = 0,
|
|
series = this,
|
|
chart = series.chart,
|
|
plotWidth = chart.plotWidth,
|
|
plotHeight = chart.plotHeight,
|
|
cumulative = 0, // start at top
|
|
options = series.options,
|
|
center = options.center,
|
|
centerX = getLength(center[0], plotWidth),
|
|
centerY = getLength(center[0], plotHeight),
|
|
width = getLength(options.width, plotWidth),
|
|
tempWidth,
|
|
getWidthAt,
|
|
height = getLength(options.height, plotHeight),
|
|
neckWidth = getLength(options.neckWidth, plotWidth),
|
|
neckHeight = getLength(options.neckHeight, plotHeight),
|
|
neckY = height - neckHeight,
|
|
data = series.data,
|
|
path,
|
|
fraction,
|
|
half = options.dataLabels.position === 'left' ? 1 : 0,
|
|
|
|
x1,
|
|
y1,
|
|
x2,
|
|
x3,
|
|
y3,
|
|
x4,
|
|
y5;
|
|
|
|
// Return the width at a specific y coordinate
|
|
series.getWidthAt = getWidthAt = function (y) {
|
|
return y > height - neckHeight || height === neckHeight ?
|
|
neckWidth :
|
|
neckWidth + (width - neckWidth) * ((height - neckHeight - y) / (height - neckHeight));
|
|
};
|
|
series.getX = function (y, half) {
|
|
return centerX + (half ? -1 : 1) * ((getWidthAt(y) / 2) + options.dataLabels.distance);
|
|
};
|
|
|
|
// Expose
|
|
series.center = [centerX, centerY, height];
|
|
series.centerX = centerX;
|
|
|
|
/*
|
|
* Individual point coordinate naming:
|
|
*
|
|
* x1,y1 _________________ x2,y1
|
|
* \ /
|
|
* \ /
|
|
* \ /
|
|
* \ /
|
|
* \ /
|
|
* x3,y3 _________ x4,y3
|
|
*
|
|
* Additional for the base of the neck:
|
|
*
|
|
* | |
|
|
* | |
|
|
* | |
|
|
* x3,y5 _________ x4,y5
|
|
*/
|
|
|
|
// get the total sum
|
|
each(data, function (point) {
|
|
sum += point.y;
|
|
});
|
|
|
|
each(data, function (point) {
|
|
// set start and end positions
|
|
y5 = null;
|
|
fraction = sum ? point.y / sum : 0;
|
|
y1 = centerY - height / 2 + cumulative * height;
|
|
y3 = y1 + fraction * height;
|
|
//tempWidth = neckWidth + (width - neckWidth) * ((height - neckHeight - y1) / (height - neckHeight));
|
|
tempWidth = getWidthAt(y1);
|
|
x1 = centerX - tempWidth / 2;
|
|
x2 = x1 + tempWidth;
|
|
tempWidth = getWidthAt(y3);
|
|
x3 = centerX - tempWidth / 2;
|
|
x4 = x3 + tempWidth;
|
|
|
|
// the entire point is within the neck
|
|
if (y1 > neckY) {
|
|
x1 = x3 = centerX - neckWidth / 2;
|
|
x2 = x4 = centerX + neckWidth / 2;
|
|
|
|
// the base of the neck
|
|
} else if (y3 > neckY) {
|
|
y5 = y3;
|
|
|
|
tempWidth = getWidthAt(neckY);
|
|
x3 = centerX - tempWidth / 2;
|
|
x4 = x3 + tempWidth;
|
|
|
|
y3 = neckY;
|
|
}
|
|
|
|
// save the path
|
|
path = [
|
|
'M',
|
|
x1, y1,
|
|
'L',
|
|
x2, y1,
|
|
x4, y3
|
|
];
|
|
if (y5) {
|
|
path.push(x4, y5, x3, y5);
|
|
}
|
|
path.push(x3, y3, 'Z');
|
|
|
|
// prepare for using shared dr
|
|
point.shapeType = 'path';
|
|
point.shapeArgs = { d: path };
|
|
|
|
// for tooltips and data labels
|
|
point.percentage = fraction * 100;
|
|
point.plotX = centerX;
|
|
point.plotY = (y1 + (y5 || y3)) / 2;
|
|
|
|
// Placement of tooltips and data labels
|
|
point.tooltipPos = [
|
|
centerX,
|
|
point.plotY
|
|
];
|
|
|
|
// Slice is a noop on funnel points
|
|
point.slice = noop;
|
|
|
|
// Mimicking pie data label placement logic
|
|
point.half = half;
|
|
|
|
cumulative += fraction;
|
|
});
|
|
|
|
series.setTooltipPoints();
|
|
},
|
|
/**
|
|
* Draw a single point (wedge)
|
|
* @param {Object} point The point object
|
|
* @param {Object} color The color of the point
|
|
* @param {Number} brightness The brightness relative to the color
|
|
*/
|
|
drawPoints: function () {
|
|
var series = this,
|
|
options = series.options,
|
|
chart = series.chart,
|
|
renderer = chart.renderer;
|
|
|
|
each(series.data, function (point) {
|
|
var graphic = point.graphic,
|
|
shapeArgs = point.shapeArgs;
|
|
|
|
if (!graphic) { // Create the shapes
|
|
point.graphic = renderer.path(shapeArgs).
|
|
attr({
|
|
fill: point.color,
|
|
stroke: options.borderColor,
|
|
'stroke-width': options.borderWidth
|
|
}).
|
|
add(series.group);
|
|
} else { // Update the shapes
|
|
graphic.animate(shapeArgs);
|
|
}
|
|
});
|
|
},
|
|
|
|
/**
|
|
* Funnel items don't have angles (#2289)
|
|
*/
|
|
sortByAngle: noop,
|
|
|
|
/**
|
|
* Extend the pie data label method
|
|
*/
|
|
drawDataLabels: function () {
|
|
var data = this.data,
|
|
labelDistance = this.options.dataLabels.distance,
|
|
leftSide,
|
|
sign,
|
|
point,
|
|
i = data.length,
|
|
x,
|
|
y;
|
|
|
|
// In the original pie label anticollision logic, the slots are distributed
|
|
// from one labelDistance above to one labelDistance below the pie. In funnels
|
|
// we don't want this.
|
|
this.center[2] -= 2 * labelDistance;
|
|
|
|
// Set the label position array for each point.
|
|
while (i--) {
|
|
point = data[i];
|
|
leftSide = point.half;
|
|
sign = leftSide ? 1 : -1;
|
|
y = point.plotY;
|
|
x = this.getX(y, leftSide);
|
|
|
|
// set the anchor point for data labels
|
|
point.labelPos = [
|
|
0, // first break of connector
|
|
y, // a/a
|
|
x + (labelDistance - 5) * sign, // second break, right outside point shape
|
|
y, // a/a
|
|
x + labelDistance * sign, // landing point for connector
|
|
y, // a/a
|
|
leftSide ? 'right' : 'left', // alignment
|
|
0 // center angle
|
|
];
|
|
}
|
|
|
|
seriesTypes.pie.prototype.drawDataLabels.call(this);
|
|
}
|
|
});
|
|
}(Highcharts));
|