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/**
* @license Map plugin v0.2 for Highcharts
*
* (c) 2011-2014 Torstein Honsi
*
* License: www.highcharts.com/license
*/
/*global HighchartsAdapter*/
(function (H) {
var UNDEFINED,
Axis = H.Axis,
Chart = H.Chart,
Color = H.Color,
Point = H.Point,
Pointer = H.Pointer,
Legend = H.Legend,
Series = H.Series,
SVGRenderer = H.SVGRenderer,
VMLRenderer = H.VMLRenderer,
symbols = SVGRenderer.prototype.symbols,
each = H.each,
extend = H.extend,
extendClass = H.extendClass,
merge = H.merge,
pick = H.pick,
numberFormat = H.numberFormat,
defaultOptions = H.getOptions(),
seriesTypes = H.seriesTypes,
plotOptions = defaultOptions.plotOptions,
wrap = H.wrap,
noop = function () {};
// Add language
extend(defaultOptions.lang, {
zoomIn: 'Zoom in',
zoomOut: 'Zoom out'
});
/*
* Return an intermediate color between two colors, according to pos where 0
* is the from color and 1 is the to color
*/
function tweenColors(from, to, pos) {
var i = 4,
val,
rgba = [];
while (i--) {
val = to.rgba[i] + (from.rgba[i] - to.rgba[i]) * (1 - pos);
rgba[i] = i === 3 ? val : Math.round(val); // Do not round opacity
}
return 'rgba(' + rgba.join(',') + ')';
}
// Set the default map navigation options
defaultOptions.mapNavigation = {
buttonOptions: {
alignTo: 'plotBox',
align: 'left',
verticalAlign: 'top',
x: 0,
width: 18,
height: 18,
style: {
fontSize: '15px',
fontWeight: 'bold',
textAlign: 'center'
},
theme: {
'stroke-width': 1
}
},
buttons: {
zoomIn: {
onclick: function () {
this.mapZoom(0.5);
},
text: '+',
y: 0
},
zoomOut: {
onclick: function () {
this.mapZoom(2);
},
text: '-',
y: 28
}
}
// enabled: false,
// enableButtons: null, // inherit from enabled
// enableTouchZoom: null, // inherit from enabled
// enableDoubleClickZoom: null, // inherit from enabled
// enableDoubleClickZoomTo: false
// enableMouseWheelZoom: null, // inherit from enabled
};
/**
* Utility for reading SVG paths directly.
*/
H.splitPath = function (path) {
var i;
// Move letters apart
path = path.replace(/([A-Za-z])/g, ' $1 ');
// Trim
path = path.replace(/^\s*/, "").replace(/\s*$/, "");
// Split on spaces and commas
path = path.split(/[ ,]+/);
// Parse numbers
for (i = 0; i < path.length; i++) {
if (!/[a-zA-Z]/.test(path[i])) {
path[i] = parseFloat(path[i]);
}
}
return path;
};
// A placeholder for map definitions
H.maps = {};
/**
* Override to use the extreme coordinates from the SVG shape, not the
* data values
*/
wrap(Axis.prototype, 'getSeriesExtremes', function (proceed) {
var isXAxis = this.isXAxis,
dataMin,
dataMax,
xData = [];
// Remove the xData array and cache it locally so that the proceed method doesn't use it
if (isXAxis) {
each(this.series, function (series, i) {
if (series.useMapGeometry) {
xData[i] = series.xData;
series.xData = [];
}
});
}
// Call base to reach normal cartesian series (like mappoint)
proceed.call(this);
// Run extremes logic for map and mapline
if (isXAxis) {
dataMin = pick(this.dataMin, Number.MAX_VALUE);
dataMax = pick(this.dataMax, Number.MIN_VALUE);
each(this.series, function (series, i) {
if (series.useMapGeometry) {
dataMin = Math.min(dataMin, pick(series.minX, dataMin));
dataMax = Math.max(dataMax, pick(series.maxX, dataMin));
series.xData = xData[i]; // Reset xData array
}
});
this.dataMin = dataMin;
this.dataMax = dataMax;
}
});
/**
* Override axis translation to make sure the aspect ratio is always kept
*/
wrap(Axis.prototype, 'setAxisTranslation', function (proceed) {
var chart = this.chart,
mapRatio,
plotRatio = chart.plotWidth / chart.plotHeight,
adjustedAxisLength,
xAxis = chart.xAxis[0],
padAxis,
fixTo,
fixDiff;
// Run the parent method
proceed.call(this);
// On Y axis, handle both
if (chart.options.chart.preserveAspectRatio && this.coll === 'yAxis' && xAxis.transA !== UNDEFINED) {
// Use the same translation for both axes
this.transA = xAxis.transA = Math.min(this.transA, xAxis.transA);
mapRatio = chart.mapRatio = plotRatio / ((xAxis.max - xAxis.min) / (this.max - this.min));
// What axis to pad to put the map in the middle
padAxis = mapRatio < 1 ? this : xAxis;
// Pad it
adjustedAxisLength = (padAxis.max - padAxis.min) * padAxis.transA;
padAxis.pixelPadding = padAxis.len - adjustedAxisLength;
padAxis.minPixelPadding = padAxis.pixelPadding / 2;
fixTo = padAxis.fixTo;
if (fixTo) {
fixDiff = fixTo[1] - padAxis.toValue(fixTo[0], true);
fixDiff *= padAxis.transA;
if (Math.abs(fixDiff) > padAxis.minPixelPadding) { // zooming out again, keep within restricted area
fixDiff = 0;
}
padAxis.minPixelPadding -= fixDiff;
}
}
});
/**
* Override Axis.render in order to delete the fixTo prop
*/
wrap(Axis.prototype, 'render', function (proceed) {
proceed.call(this);
this.fixTo = null;
});
// Extend the Pointer
extend(Pointer.prototype, {
/**
* The event handler for the doubleclick event
*/
onContainerDblClick: function (e) {
var chart = this.chart;
e = this.normalize(e);
if (chart.options.mapNavigation.enableDoubleClickZoomTo) {
if (chart.pointer.inClass(e.target, 'highcharts-tracker')) {
chart.hoverPoint.zoomTo();
}
} else if (chart.isInsidePlot(e.chartX - chart.plotLeft, e.chartY - chart.plotTop)) {
chart.mapZoom(
0.5,
chart.xAxis[0].toValue(e.chartX),
chart.yAxis[0].toValue(e.chartY),
e.chartX,
e.chartY
);
}
},
/**
* The event handler for the mouse scroll event
*/
onContainerMouseWheel: function (e) {
var chart = this.chart,
delta;
e = this.normalize(e);
// Firefox uses e.detail, WebKit and IE uses wheelDelta
delta = e.detail || -(e.wheelDelta / 120);
if (chart.isInsidePlot(e.chartX - chart.plotLeft, e.chartY - chart.plotTop)) {
chart.mapZoom(
delta > 0 ? 2 : 1 / 2,
chart.xAxis[0].toValue(e.chartX),
chart.yAxis[0].toValue(e.chartY),
delta > 0 ? undefined : e.chartX,
delta > 0 ? undefined : e.chartY
);
}
}
});
// Implement the pinchType option
wrap(Pointer.prototype, 'init', function (proceed, chart, options) {
proceed.call(this, chart, options);
// Pinch status
if (pick(options.mapNavigation.enableTouchZoom, options.mapNavigation.enabled)) {
this.pinchX = this.pinchHor =
this.pinchY = this.pinchVert = true;
}
});
// Extend the pinchTranslate method to preserve fixed ratio when zooming
wrap(Pointer.prototype, 'pinchTranslate', function (proceed, zoomHor, zoomVert, pinchDown, touches, transform, selectionMarker, clip, lastValidTouch) {
var xBigger;
proceed.call(this, zoomHor, zoomVert, pinchDown, touches, transform, selectionMarker, clip, lastValidTouch);
// Keep ratio
if (this.chart.options.chart.type === 'map') {
xBigger = transform.scaleX > transform.scaleY;
this.pinchTranslateDirection(
!xBigger,
pinchDown,
touches,
transform,
selectionMarker,
clip,
lastValidTouch,
xBigger ? transform.scaleX : transform.scaleY
);
}
});
/**
* The ColorAxis object for inclusion in gradient legends
*/
var ColorAxis = H.ColorAxis = function () {
this.init.apply(this, arguments);
};
extend(ColorAxis.prototype, Axis.prototype);
extend(ColorAxis.prototype, {
defaultColorAxisOptions: {
lineWidth: 0,
gridLineWidth: 1,
tickPixelInterval: 72,
startOnTick: true,
endOnTick: true,
offset: 0,
marker: { // docs: use another name?
animation: {
duration: 50
},
color: 'gray',
width: 0.01
},
labels: {
overflow: 'justify'
},
minColor: '#EFEFFF',
maxColor: '#102d4c'
},
init: function (chart, userOptions) {
var horiz = chart.options.legend.layout !== 'vertical',
options;
// Build the options
options = merge(this.defaultColorAxisOptions, {
side: horiz ? 2 : 1,
reversed: !horiz
}, userOptions, {
isX: horiz,
opposite: !horiz,
showEmpty: false,
title: null
});
Axis.prototype.init.call(this, chart, options);
// Base init() pushes it to the xAxis array, now pop it again
//chart[this.isXAxis ? 'xAxis' : 'yAxis'].pop();
// Prepare data classes
if (userOptions.dataClasses) {
this.initDataClasses(userOptions);
}
// Override original axis properties
this.isXAxis = true;
this.horiz = horiz;
},
initDataClasses: function (userOptions) {
var chart = this.chart,
dataClasses,
colorCounter = 0,
options = this.options;
this.dataClasses = dataClasses = [];
each(userOptions.dataClasses, function (dataClass, i) {
var colors;
dataClass = merge(dataClass);
dataClasses.push(dataClass);
if (!dataClass.color) {
if (options.dataClassColor === 'category') {
colors = chart.options.colors;
dataClass.color = colors[colorCounter++];
// loop back to zero
if (colorCounter === colors.length) {
colorCounter = 0;
}
} else {
dataClass.color = tweenColors(Color(options.minColor), Color(options.maxColor), i / (userOptions.dataClasses.length - 1));
}
}
});
},
/**
* Extend the setOptions method to process extreme colors and color
* stops.
*/
setOptions: function (userOptions) {
Axis.prototype.setOptions.call(this, userOptions);
this.options.crosshair = this.options.marker;
this.stops = userOptions.stops || [
[0, this.options.minColor],
[1, this.options.maxColor]
];
each(this.stops, function (stop) {
stop.color = Color(stop[1]);
});
this.coll = 'colorAxis';
},
setAxisSize: function () {
var symbol = this.legendSymbol,
chart = this.chart;
if (symbol) {
this.left = symbol.x;
this.top = symbol.y;
this.width = symbol.width;
this.height = symbol.height;
this.right = chart.chartWidth - this.left - this.width;
this.bottom = chart.chartHeight - this.top - this.height;
this.len = this.horiz ? this.width : this.height;
this.pos = this.horiz ? this.left : this.top;
}
},
/**
* Translate from a value to a color
*/
toColor: function (value, point) {
var pos,
stops = this.stops,
from,
to,
color,
dataClasses = this.dataClasses,
dataClass,
i;
if (dataClasses) {
i = dataClasses.length;
while (i--) {
dataClass = dataClasses[i];
from = dataClass.from;
to = dataClass.to;
if ((from === UNDEFINED || value >= from) && (to === UNDEFINED || value <= to)) {
color = dataClass.color;
if (point) {
point.dataClass = i;
}
break;
}
}
} else {
if (this.isLog) {
value = this.val2lin(value);
}
pos = 1 - ((this.max - value) / (this.max - this.min));
i = stops.length;
while (i--) {
if (pos > stops[i][0]) {
break;
}
}
from = stops[i] || stops[i + 1];
to = stops[i + 1] || from;
// The position within the gradient
pos = 1 - (to[0] - pos) / ((to[0] - from[0]) || 1);
color = tweenColors(
from.color,
to.color,
pos
);
}
return color;
},
getOffset: function () {
var group = this.legendGroup;
if (group) {
Axis.prototype.getOffset.call(this);
if (!this.axisGroup.parentGroup) {
// Move the axis elements inside the legend group
this.axisGroup.add(group);
this.gridGroup.add(group);
this.labelGroup.add(group);
this.added = true;
}
}
},
/**
* Create the color gradient
*/
setLegendColor: function () {
var grad,
horiz = this.horiz,
options = this.options;
grad = horiz ? [0, 0, 1, 0] : [0, 0, 0, 1];
this.legendColor = {
linearGradient: { x1: grad[0], y1: grad[1], x2: grad[2], y2: grad[3] },
stops: options.stops || [
[0, options.minColor],
[1, options.maxColor]
]
};
},
/**
* The color axis appears inside the legend and has its own legend symbol
*/
drawLegendSymbol: function (legend, item) {
var padding = legend.padding,
legendOptions = legend.options,
horiz = this.horiz,
box,
width = pick(legendOptions.symbolWidth, horiz ? 200 : 12),
height = pick(legendOptions.symbolHeight, horiz ? 12 : 200),
labelPadding = pick(legendOptions.labelPadding, horiz ? 10 : 30);
this.setLegendColor();
// Create the gradient
item.legendSymbol = this.chart.renderer.rect(
0,
legend.baseline - 11,
width,
height
).attr({
zIndex: 1
}).add(item.legendGroup);
box = item.legendSymbol.getBBox();
// Set how much space this legend item takes up
this.legendItemWidth = width + padding + (horiz ? 0 : labelPadding);
this.legendItemHeight = height + padding + (horiz ? labelPadding : 0);
},
/**
* Fool the legend
*/
setState: noop,
visible: true,
setVisible: noop,
getSeriesExtremes: function () {
var series;
if (this.series.length) {
series = this.series[0];
this.dataMin = series.valueMin;
this.dataMax = series.valueMax;
}
},
drawCrosshair: function (e, point) {
var newCross = !this.cross,
plotX = point && point.plotX,
plotY = point && point.plotY,
crossPos,
axisPos = this.pos,
axisLen = this.len;
if (point) {
crossPos = this.toPixels(point.value);
if (crossPos < axisPos) {
crossPos = axisPos - 2;
} else if (crossPos > axisPos + axisLen) {
crossPos = axisPos + axisLen + 2;
}
point.plotX = crossPos;
point.plotY = this.len - crossPos;
Axis.prototype.drawCrosshair.call(this, e, point);
point.plotX = plotX;
point.plotY = plotY;
if (!newCross && this.cross) {
this.cross
.attr({
fill: this.crosshair.color
})
.add(this.labelGroup);
}
}
},
getPlotLinePath: function (a, b, c, d, pos) {
if (pos) { // crosshairs only
return this.horiz ?
['M', pos - 4, this.top - 6, 'L', pos + 4, this.top - 6, pos, this.top, 'Z'] :
['M', this.left, pos, 'L', this.left - 6, pos + 6, this.left - 6, pos - 6, 'Z'];
} else {
return Axis.prototype.getPlotLinePath.call(this, a, b, c, d);
}
},
update: function (newOptions, redraw) {
Axis.prototype.update.call(this, newOptions, redraw);
if (this.legendItem) {
this.setLegendColor();
this.chart.legend.colorizeItem(this, true);
}
},
/**
* Get the legend item symbols for data classes
*/
getDataClassLegendSymbols: function () {
var axis = this,
chart = this.chart,
legendItems = [],
legendOptions = chart.options.legend,
valueDecimals = legendOptions.valueDecimals,
valueSuffix = legendOptions.valueSuffix || '',
name;
each(this.dataClasses, function (dataClass, i) {
var vis = true,
from = dataClass.from,
to = dataClass.to;
// Assemble the default name. This can be overridden by legend.options.labelFormatter
name = '';
if (from === UNDEFINED) {
name = '< ';
} else if (to === UNDEFINED) {
name = '> ';
}
if (from !== UNDEFINED) {
name += numberFormat(from, valueDecimals) + valueSuffix;
}
if (from !== UNDEFINED && to !== UNDEFINED) {
name += ' - ';
}
if (to !== UNDEFINED) {
name += numberFormat(to, valueDecimals) + valueSuffix;
}
// Add a mock object to the legend items
legendItems.push(H.extend({
chart: chart,
name: name,
options: {},
drawLegendSymbol: H.LegendSymbolMixin.drawRectangle,
visible: true,
setState: noop,
setVisible: function () {
vis = this.visible = !vis;
each(axis.series, function (series) {
each(series.points, function (point) {
if (point.dataClass === i) {
point.setVisible(vis);
}
});
});
chart.legend.colorizeItem(this, vis);
}
}, dataClass));
});
return legendItems;
}
});
/**
* Wrap the legend getAllItems method to add the color axis. This also removes the
* axis' own series to prevent them from showing up individually.
*/
wrap(Legend.prototype, 'getAllItems', function (proceed) {
var allItems = [],
colorAxis = this.chart.colorAxis[0];
if (colorAxis) {
// Data classes
if (colorAxis.options.dataClasses) {
allItems = allItems.concat(colorAxis.getDataClassLegendSymbols());
// Gradient legend
} else {
// Add this axis on top
allItems.push(colorAxis);
}
// Don't add the color axis' series
each(colorAxis.series, function (series) {
series.options.showInLegend = false;
});
}
return allItems.concat(proceed.call(this));
});
// Add events to the Chart object itself
extend(Chart.prototype, {
renderMapNavigation: function () {
var chart = this,
options = this.options.mapNavigation,
buttons = options.buttons,
n,
button,
buttonOptions,
attr,
states,
outerHandler = function () {
this.handler.call(chart);
};
if (pick(options.enableButtons, options.enabled) && !chart.renderer.forExport) {
for (n in buttons) {
if (buttons.hasOwnProperty(n)) {
buttonOptions = merge(options.buttonOptions, buttons[n]);
attr = buttonOptions.theme;
states = attr.states;
button = chart.renderer.button(
buttonOptions.text,
0,
0,
outerHandler,
attr,
states && states.hover,
states && states.select,
0,
n === 'zoomIn' ? 'topbutton' : 'bottombutton'
)
.attr({
width: buttonOptions.width,
height: buttonOptions.height,
title: chart.options.lang[n],
zIndex: 5
})
.css(buttonOptions.style)
.add();
button.handler = buttonOptions.onclick;
button.align(extend(buttonOptions, { width: button.width, height: 2 * button.height }), null, buttonOptions.alignTo);
}
}
}
},
/**
* Fit an inner box to an outer. If the inner box overflows left or right, align it to the sides of the
* outer. If it overflows both sides, fit it within the outer. This is a pattern that occurs more places
* in Highcharts, perhaps it should be elevated to a common utility function.
*/
fitToBox: function (inner, outer) {
each([['x', 'width'], ['y', 'height']], function (dim) {
var pos = dim[0],
size = dim[1];
if (inner[pos] + inner[size] > outer[pos] + outer[size]) { // right overflow
if (inner[size] > outer[size]) { // the general size is greater, fit fully to outer
inner[size] = outer[size];
inner[pos] = outer[pos];
} else { // align right
inner[pos] = outer[pos] + outer[size] - inner[size];
}
}
if (inner[size] > outer[size]) {
inner[size] = outer[size];
}
if (inner[pos] < outer[pos]) {
inner[pos] = outer[pos];
}
});
return inner;
},
/**
* Zoom the map in or out by a certain amount. Less than 1 zooms in, greater than 1 zooms out.
*/
mapZoom: function (howMuch, centerXArg, centerYArg, mouseX, mouseY) {
/*if (this.isMapZooming) {
this.mapZoomQueue = arguments;
return;
}*/
var chart = this,
xAxis = chart.xAxis[0],
xRange = xAxis.max - xAxis.min,
centerX = pick(centerXArg, xAxis.min + xRange / 2),
newXRange = xRange * howMuch,
yAxis = chart.yAxis[0],
yRange = yAxis.max - yAxis.min,
centerY = pick(centerYArg, yAxis.min + yRange / 2),
newYRange = yRange * howMuch,
fixToX = mouseX ? ((mouseX - xAxis.pos) / xAxis.len) : 0.5,
fixToY = mouseY ? ((mouseY - yAxis.pos) / yAxis.len) : 0.5,
newXMin = centerX - newXRange * fixToX,
newYMin = centerY - newYRange * fixToY,
newExt = chart.fitToBox({
x: newXMin,
y: newYMin,
width: newXRange,
height: newYRange
}, {
x: xAxis.dataMin,
y: yAxis.dataMin,
width: xAxis.dataMax - xAxis.dataMin,
height: yAxis.dataMax - yAxis.dataMin
});
// When mousewheel zooming, fix the point under the mouse
if (mouseX) {
xAxis.fixTo = [mouseX - xAxis.pos, centerXArg];
}
if (mouseY) {
yAxis.fixTo = [mouseY - yAxis.pos, centerYArg];
}
// Zoom
if (howMuch !== undefined) {
xAxis.setExtremes(newExt.x, newExt.x + newExt.width, false);
yAxis.setExtremes(newExt.y, newExt.y + newExt.height, false);
// Reset zoom
} else {
xAxis.setExtremes(undefined, undefined, false);
yAxis.setExtremes(undefined, undefined, false);
}
// Prevent zooming until this one is finished animating
/*delay = animation ? animation.duration || 500 : 0;
if (delay) {
chart.isMapZooming = true;
setTimeout(function () {
chart.isMapZooming = false;
if (chart.mapZoomQueue) {
chart.mapZoom.apply(chart, chart.mapZoomQueue);
}
chart.mapZoomQueue = null;
}, delay);
}*/
chart.redraw();
}
});
/**
* Extend the chart getAxes method to also get the color axis
*/
wrap(Chart.prototype, 'getAxes', function (proceed) {
var options = this.options,
colorAxisOptions = options.colorAxis;
proceed.call(this);
this.colorAxis = [];
if (colorAxisOptions) {
proceed = new ColorAxis(this, colorAxisOptions); // Fake assignment for jsLint
}
});
/**
* Extend the Chart.render method to add zooming and panning
*/
wrap(Chart.prototype, 'render', function (proceed) {
var chart = this,
mapNavigation = chart.options.mapNavigation;
proceed.call(chart);
// Render the plus and minus buttons
chart.renderMapNavigation();
// Add the double click event
if (pick(mapNavigation.enableDoubleClickZoom, mapNavigation.enabled) || mapNavigation.enableDoubleClickZoomTo) {
H.addEvent(chart.container, 'dblclick', function (e) {
chart.pointer.onContainerDblClick(e);
});
}
// Add the mousewheel event
if (pick(mapNavigation.enableMouseWheelZoom, mapNavigation.enabled)) {
H.addEvent(chart.container, document.onmousewheel === undefined ? 'DOMMouseScroll' : 'mousewheel', function (e) {
chart.pointer.onContainerMouseWheel(e);
return false;
});
}
});
/**
* Extend the default options with map options
*/
plotOptions.map = merge(plotOptions.scatter, {
allAreas: true,
animation: false, // makes the complex shapes slow
nullColor: '#F8F8F8',
borderColor: 'silver',
borderWidth: 1,
marker: null,
stickyTracking: false,
dataLabels: {
format: '{point.value}',
verticalAlign: 'middle'
},
turboThreshold: 0,
tooltip: {
followPointer: true,
pointFormat: '{point.name}: {point.value}<br/>'
},
states: {
normal: {
animation: true
},
hover: {
brightness: 0.2
}
}
});
/**
* The MapAreaPoint object
*/
var MapAreaPoint = extendClass(Point, {
/**
* Extend the Point object to split paths
*/
applyOptions: function (options, x) {
var point = Point.prototype.applyOptions.call(this, options, x),
series = this.series,
seriesOptions = series.options,
joinBy = seriesOptions.joinBy,
mapPoint;
if (seriesOptions.mapData) {
mapPoint = joinBy ?
series.getMapData(joinBy, point[joinBy]) : // Join by a string
seriesOptions.mapData[point.x]; // Use array position (faster)
if (mapPoint) {
// This applies only to bubbles
if (series.xyFromShape) {
point.x = mapPoint._midX;
point.y = mapPoint._midY;
}
extend(point, mapPoint); // copy over properties
} else {
point.value = point.value || null;
}
}
return point;
},
/**
* Set the visibility of a single map area
*/
setVisible: function (vis) {
var point = this,
method = vis ? 'show' : 'hide';
// Show and hide associated elements
each(['graphic', 'dataLabel'], function (key) {
if (point[key]) {
point[key][method]();
}
});
},
/**
* Stop the fade-out
*/
onMouseOver: function (e) {
clearTimeout(this.colorInterval);
Point.prototype.onMouseOver.call(this, e);
},
/**
* Custom animation for tweening out the colors. Animation reduces blinking when hovering
* over islands and coast lines. We run a custom implementation of animation becuase we
* need to be able to run this independently from other animations like zoom redraw. Also,
* adding color animation to the adapters would introduce almost the same amount of code.
*/
onMouseOut: function () {
var point = this,
start = +new Date(),
normalColor = Color(point.options.color),
hoverColor = Color(point.pointAttr.hover.fill),
animation = point.series.options.states.normal.animation,
duration = animation && (animation.duration || 500);
if (duration && normalColor.rgba.length === 4 && hoverColor.rgba.length === 4 && point.state !== 'select') {
delete point.pointAttr[''].fill; // avoid resetting it in Point.setState
clearTimeout(point.colorInterval);
point.colorInterval = setInterval(function () {
var pos = (new Date() - start) / duration,
graphic = point.graphic;
if (pos > 1) {
pos = 1;
}
if (graphic) {
graphic.attr('fill', tweenColors(hoverColor, normalColor, pos));
}
if (pos >= 1) {
clearTimeout(point.colorInterval);
}
}, 13);
}
Point.prototype.onMouseOut.call(point);
},
/**
* Zoom the chart to view a specific area point
*/
zoomTo: function () {
var point = this,
series = point.series;
series.xAxis.setExtremes(
point._minX,
point._maxX,
false
);
series.yAxis.setExtremes(
point._minY,
point._maxY,
false
);
series.chart.redraw();
}
});
/**
* Add the series type
*/
seriesTypes.map = extendClass(seriesTypes.scatter, {
type: 'map',
pointAttrToOptions: { // mapping between SVG attributes and the corresponding options
stroke: 'borderColor',
'stroke-width': 'borderWidth',
fill: 'color',
dashstyle: 'dashStyle'
},
pointClass: MapAreaPoint,
pointArrayMap: ['value'],
axisTypes: ['xAxis', 'yAxis', 'colorAxis'],
optionalAxis: 'colorAxis',
trackerGroups: ['group', 'markerGroup', 'dataLabelsGroup'],
getSymbol: noop,
supportsDrilldown: true,
getExtremesFromAll: true,
useMapGeometry: true, // get axis extremes from paths, not values
parallelArrays: ['x', 'y', 'value'],
/**
* Get the bounding box of all paths in the map combined.
*/
getBox: function (paths) {
var maxX = Number.MIN_VALUE,
minX = Number.MAX_VALUE,
maxY = Number.MIN_VALUE,
minY = Number.MAX_VALUE,
hasBox;
// Find the bounding box
each(paths || [], function (point) {
if (point.path) {
if (typeof point.path === 'string') {
point.path = H.splitPath(point.path);
}
var path = point.path || [],
i = path.length,
even = false, // while loop reads from the end
pointMaxX = Number.MIN_VALUE,
pointMinX = Number.MAX_VALUE,
pointMaxY = Number.MIN_VALUE,
pointMinY = Number.MAX_VALUE;
// The first time a map point is used, analyze its box
if (!point._foundBox) {
while (i--) {
if (typeof path[i] === 'number' && !isNaN(path[i])) {
if (even) { // even = x
pointMaxX = Math.max(pointMaxX, path[i]);
pointMinX = Math.min(pointMinX, path[i]);
} else { // odd = Y
pointMaxY = Math.max(pointMaxY, path[i]);
pointMinY = Math.min(pointMinY, path[i]);
}
even = !even;
}
}
// Cache point bounding box for use to position data labels, bubbles etc
point._midX = pointMinX + (pointMaxX - pointMinX) * (point.middleX || 0.5); // pick is slower and very marginally needed
point._midY = pointMinY + (pointMaxY - pointMinY) * (point.middleY || 0.5);
point._maxX = pointMaxX;
point._minX = pointMinX;
point._maxY = pointMaxY;
point._minY = pointMinY;
point._foundBox = true;
}
maxX = Math.max(maxX, point._maxX);
minX = Math.min(minX, point._minX);
maxY = Math.max(maxY, point._maxY);
minY = Math.min(minY, point._minY);
hasBox = true;
}
});
// Set the box for the whole series
if (hasBox) {
this.minY = Math.min(minY, pick(this.minY, Number.MAX_VALUE));
this.maxY = Math.max(maxY, pick(this.maxY, Number.MIN_VALUE));
this.minX = Math.min(minX, pick(this.minX, Number.MAX_VALUE));
this.maxX = Math.max(maxX, pick(this.maxX, Number.MIN_VALUE));
}
},
getExtremes: function () {
// Get the actual value extremes for colors
Series.prototype.getExtremes.call(this, this.valueData);
// Recalculate box on updated data
if (this.chart.hasRendered && this.isDirtyData) {
this.getBox(this.options.data);
}
this.valueMin = this.dataMin;
this.valueMax = this.dataMax;
// Extremes for the mock Y axis
this.dataMin = this.minY;
this.dataMax = this.maxY;
},
/**
* Translate the path so that it automatically fits into the plot area box
* @param {Object} path
*/
translatePath: function (path) {
var series = this,
even = false, // while loop reads from the end
xAxis = series.xAxis,
yAxis = series.yAxis,
xMin = xAxis.min,
xTransA = xAxis.transA,
xMinPixelPadding = xAxis.minPixelPadding,
yMin = yAxis.min,
yTransA = yAxis.transA,
yMinPixelPadding = yAxis.minPixelPadding,
i,
ret = []; // Preserve the original
// Do the translation
if (path) {
i = path.length;
while (i--) {
if (typeof path[i] === 'number') {
ret[i] = even ?
(path[i] - xMin) * xTransA + xMinPixelPadding :
(path[i] - yMin) * yTransA + yMinPixelPadding;
even = !even;
} else {
ret[i] = path[i];
}
}
}
return ret;
},
/**
* Extend setData to join in mapData. If the allAreas option is true, all areas
* from the mapData are used, and those that don't correspond to a data value
* are given null values.
*/
setData: function (data, redraw) {
var options = this.options,
mapData = options.mapData,
joinBy = options.joinBy,
dataUsed = [];
this.getBox(data);
this.getBox(mapData);
if (options.allAreas && mapData) {
data = data || [];
// Registered the point codes that actually hold data
if (joinBy) {
each(data, function (point) {
dataUsed.push(point[joinBy]);
});
}
// Add those map points that don't correspond to data, which will be drawn as null points
dataUsed = '|' + dataUsed.join('|') + '|'; // String search is faster than array.indexOf
each(mapData, function (mapPoint) {
if (!joinBy || dataUsed.indexOf('|' + mapPoint[joinBy] + '|') === -1) {
data.push(merge(mapPoint, { value: null }));
}
});
}
Series.prototype.setData.call(this, data, redraw);
},
/**
* For each point, get the corresponding map data
*/
getMapData: function (key, value) {
var options = this.options,
mapData = options.mapData,
mapMap = this.mapMap,
i = mapData.length;
// Create a cache for quicker lookup second time
if (!mapMap) {
mapMap = this.mapMap = {};
}
if (mapMap[value] !== undefined) {
return mapData[mapMap[value]];
} else if (value !== undefined) {
while (i--) {
if (mapData[i][key] === value) {
mapMap[value] = i; // cache it
return mapData[i];
}
}
}
},
/**
* In choropleth maps, the color is a result of the value, so this needs translation too
*/
translateColors: function () {
var series = this,
nullColor = this.options.nullColor,
colorAxis = this.colorAxis;
each(this.data, function (point) {
var value = point.value,
color;
color = value === null ? nullColor : colorAxis ? colorAxis.toColor(value, point) : (point.color) || series.color;
if (color) {
point.color = point.options.color = color;
}
});
},
/**
* No graph for the map series
*/
drawGraph: noop,
/**
* We need the points' bounding boxes in order to draw the data labels, so
* we skip it now and call it from drawPoints instead.
*/
drawDataLabels: noop,
/**
* Add the path option for data points. Find the max value for color calculation.
*/
translate: function () {
var series = this,
xAxis = series.xAxis,
yAxis = series.yAxis;
series.generatePoints();
each(series.data, function (point) {
// Record the middle point (loosely based on centroid), determined
// by the middleX and middleY options.
point.plotX = xAxis.toPixels(point._midX, true);
point.plotY = yAxis.toPixels(point._midY, true);
if (series.isDirtyData || series.chart.renderer.isVML) {
point.shapeType = 'path';
point.shapeArgs = {
//d: display ? series.translatePath(point.path) : ''
d: series.translatePath(point.path),
'vector-effect': 'non-scaling-stroke'
};
}
});
series.translateColors();
},
/**
* Use the drawPoints method of column, that is able to handle simple shapeArgs.
* Extend it by assigning the tooltip position.
*/
drawPoints: function () {
var series = this,
xAxis = series.xAxis,
yAxis = series.yAxis,
scale,
translateX,
group = series.group,
chart = series.chart,
renderer = chart.renderer,
translateY,
getTranslate = function (axis, mapRatio) {
var dataMin = axis.dataMin,
dataMax = axis.dataMax,
fullDataMin = dataMin - ((dataMax - dataMin) * (mapRatio - 1) / 2),
fullMin = axis.min - axis.minPixelPadding / axis.transA,
minOffset = fullMin - fullDataMin,
centerOffset = (dataMax - dataMin - axis.max + axis.min) * mapRatio,
center = minOffset / centerOffset;
return (axis.len * (1 - scale)) * center;
};
// Set a group that handles transform during zooming and panning in order to preserve clipping
// on series.group
if (!series.transformGroup) {
series.transformGroup = renderer.g()
.attr({
scaleX: 1,
scaleY: 1
})
.add(group);
}
// Draw the shapes again
if (series.isDirtyData || renderer.isVML) {
// Draw them in transformGroup
series.group = series.transformGroup;
seriesTypes.column.prototype.drawPoints.apply(series);
series.group = group; // Reset
// Individual point actions
each(series.points, function (point) {
// Reset color on update/redraw
if (chart.hasRendered && point.graphic) {
point.graphic.attr('fill', point.options.color);
}
});
// Set the base for later scale-zooming
this.transA = xAxis.transA;
// Just update the scale and transform for better performance
} else {
scale = xAxis.transA / this.transA;
if (scale > 0.99 && scale < 1.01) { // rounding errors
translateX = 0;
translateY = 0;
scale = 1;
} else {
translateX = getTranslate(xAxis, Math.max(1, series.chart.mapRatio));
translateY = getTranslate(yAxis, 1 / Math.min(1, series.chart.mapRatio));
}
this.transformGroup.animate({
translateX: translateX,
translateY: translateY,
scaleX: scale,
scaleY: scale
});
}
// Now draw the data labels
Series.prototype.drawDataLabels.call(series);
},
/**
* Override render to throw in an async call in IE8. Otherwise it chokes on the US counties demo.
*/
render: function () {
var series = this,
render = Series.prototype.render;
// Give IE8 some time to breathe.
if (series.chart.renderer.isVML && series.data.length > 3000) {
setTimeout(function () {
render.call(series);
});
} else {
render.call(series);
}
},
/**
* The initial animation for the map series. By default, animation is disabled.
* Animation of map shapes is not at all supported in VML browsers.
*/
animate: function (init) {
var chart = this.chart,
animation = this.options.animation,
group = this.group,
xAxis = this.xAxis,
yAxis = this.yAxis,
left = xAxis.pos,
top = yAxis.pos;
if (chart.renderer.isSVG) {
if (animation === true) {
animation = {
duration: 1000
};
}
// Initialize the animation
if (init) {
// Scale down the group and place it in the center
group.attr({
translateX: left + xAxis.len / 2,
translateY: top + yAxis.len / 2,
scaleX: 0.001, // #1499
scaleY: 0.001
});
// Run the animation
} else {
group.animate({
translateX: left,
translateY: top,
scaleX: 1,
scaleY: 1
}, animation);
// Delete this function to allow it only once
this.animate = null;
}
}
},
/**
* Animate in the new series from the clicked point in the old series.
* Depends on the drilldown.js module
*/
animateDrilldown: function (init) {
var toBox = this.chart.plotBox,
level = this.chart.drilldownLevels[this.chart.drilldownLevels.length - 1],
fromBox = level.bBox,
animationOptions = this.chart.options.drilldown.animation,
scale;
if (!init) {
scale = Math.min(fromBox.width / toBox.width, fromBox.height / toBox.height);
level.shapeArgs = {
scaleX: scale,
scaleY: scale,
translateX: fromBox.x,
translateY: fromBox.y
};
// TODO: Animate this.group instead
each(this.points, function (point) {
point.graphic
.attr(level.shapeArgs)
.animate({
scaleX: 1,
scaleY: 1,
translateX: 0,
translateY: 0
}, animationOptions);
});
this.animate = null;
}
},
drawLegendSymbol: H.LegendSymbolMixin.drawRectangle,
/**
* When drilling up, pull out the individual point graphics from the lower series
* and animate them into the origin point in the upper series.
*/
animateDrillupFrom: function (level) {
seriesTypes.column.prototype.animateDrillupFrom.call(this, level);
},
/**
* When drilling up, keep the upper series invisible until the lower series has
* moved into place
*/
animateDrillupTo: function (init) {
seriesTypes.column.prototype.animateDrillupTo.call(this, init);
}
});
// The mapline series type
plotOptions.mapline = merge(plotOptions.map, {
lineWidth: 1,
fillColor: 'none'
});
seriesTypes.mapline = extendClass(seriesTypes.map, {
type: 'mapline',
pointAttrToOptions: { // mapping between SVG attributes and the corresponding options
stroke: 'color',
'stroke-width': 'lineWidth',
fill: 'fillColor'
},
drawLegendSymbol: seriesTypes.line.prototype.drawLegendSymbol
});
// The mappoint series type
plotOptions.mappoint = merge(plotOptions.scatter, {
dataLabels: {
enabled: true,
format: '{point.name}',
color: 'black',
style: {
textShadow: '0 0 5px white'
}
}
});
seriesTypes.mappoint = extendClass(seriesTypes.scatter, {
type: 'mappoint'
});
// The mapbubble series type
if (seriesTypes.bubble) {
plotOptions.mapbubble = merge(plotOptions.bubble, {
tooltip: {
pointFormat: '{point.name}: {point.z}'
}
});
seriesTypes.mapbubble = extendClass(seriesTypes.bubble, {
pointClass: extendClass(Point, {
applyOptions: MapAreaPoint.prototype.applyOptions
}),
xyFromShape: true,
type: 'mapbubble',
pointArrayMap: ['z'], // If one single value is passed, it is interpreted as z
/**
* Return the map area identified by the dataJoinBy option
*/
getMapData: seriesTypes.map.prototype.getMapData,
getBox: seriesTypes.map.prototype.getBox,
setData: seriesTypes.map.prototype.setData
});
}
// Create symbols for the zoom buttons
function selectiveRoundedRect(attr, x, y, w, h, rTopLeft, rTopRight, rBottomRight, rBottomLeft) {
var normalize = (attr['stroke-width'] % 2 / 2);
x -= normalize;
y -= normalize;
return ['M', x + rTopLeft, y,
// top side
'L', x + w - rTopRight, y,
// top right corner
'C', x + w - rTopRight / 2, y, x + w, y + rTopRight / 2, x + w, y + rTopRight,
// right side
'L', x + w, y + h - rBottomRight,
// bottom right corner
'C', x + w, y + h - rBottomRight / 2, x + w - rBottomRight / 2, y + h, x + w - rBottomRight, y + h,
// bottom side
'L', x + rBottomLeft, y + h,
// bottom left corner
'C', x + rBottomLeft / 2, y + h, x, y + h - rBottomLeft / 2, x, y + h - rBottomLeft,
// left side
'L', x, y + rTopLeft,
// top left corner
'C', x, y + rTopLeft / 2, x + rTopLeft / 2, y, x + rTopLeft, y,
'Z'
];
}
symbols.topbutton = function (x, y, w, h, attr) {
return selectiveRoundedRect(attr, x, y, w, h, attr.r, attr.r, 0, 0);
};
symbols.bottombutton = function (x, y, w, h, attr) {
return selectiveRoundedRect(attr, x, y, w, h, 0, 0, attr.r, attr.r);
};
// The symbol callbacks are generated on the SVGRenderer object in all browsers. Even
// VML browsers need this in order to generate shapes in export. Now share
// them with the VMLRenderer.
if (H.Renderer === VMLRenderer) {
each(['topbutton', 'bottombutton'], function (shape) {
VMLRenderer.prototype.symbols[shape] = symbols[shape];
});
}
/**
* A wrapper for Chart with all the default values for a Map
*/
H.Map = function (options, callback) {
var hiddenAxis = {
endOnTick: false,
gridLineWidth: 0,
lineWidth: 0,
minPadding: 0,
maxPadding: 0,
startOnTick: false,
title: null,
tickPositions: []
//tickInterval: 500,
//gridZIndex: 10
},
seriesOptions;
// Don't merge the data
seriesOptions = options.series;
options.series = null;
options = merge({
chart: {
panning: 'xy',
type: 'map'
},
xAxis: hiddenAxis,
yAxis: merge(hiddenAxis, { reversed: true })
},
options, // user's options
{ // forced options
chart: {
inverted: false,
alignTicks: false,
preserveAspectRatio: true
}
});
options.series = seriesOptions;
return new Chart(options, callback);
};
}(Highcharts));