define(function (require) {
'use strict';
var zrUtil = require('zrender/core/util');
var graphic = require('../../util/graphic');
var Model = require('../../model/Model');
var elementList = ['axisLine', 'axisLabel', 'axisTick', 'splitLine', 'splitArea'];
function getAxisLineShape(polar, r0, r, angle) {
var start = polar.coordToPoint([r0, angle]);
var end = polar.coordToPoint([r, angle]);
return {
x1: start[0],
y1: start[1],
x2: end[0],
y2: end[1]
};
}
require('../../echarts').extendComponentView({
type: 'angleAxis',
render: function (angleAxisModel, ecModel) {
this.group.removeAll();
if (!angleAxisModel.get('show')) {
return;
}
var polarModel = ecModel.getComponent('polar', angleAxisModel.get('polarIndex'));
var angleAxis = angleAxisModel.axis;
var polar = polarModel.coordinateSystem;
var radiusExtent = polar.getRadiusAxis().getExtent();
var ticksAngles = angleAxis.getTicksCoords();
if (angleAxis.type !== 'category') {
// Remove the last tick which will overlap the first tick
ticksAngles.pop();
}
zrUtil.each(elementList, function (name) {
if (angleAxisModel.get(name +'.show')) {
this['_' + name](angleAxisModel, polar, ticksAngles, radiusExtent);
}
}, this);
},
/**
* @private
*/
_axisLine: function (angleAxisModel, polar, ticksAngles, radiusExtent) {
var lineStyleModel = angleAxisModel.getModel('axisLine.lineStyle');
var circle = new graphic.Circle({
shape: {
cx: polar.cx,
cy: polar.cy,
r: radiusExtent[1]
},
style: lineStyleModel.getLineStyle(),
z2: 1,
silent: true
});
circle.style.fill = null;
this.group.add(circle);
},
/**
* @private
*/
_axisTick: function (angleAxisModel, polar, ticksAngles, radiusExtent) {
var tickModel = angleAxisModel.getModel('axisTick');
var tickLen = (tickModel.get('inside') ? -1 : 1) * tickModel.get('length');
var lines = zrUtil.map(ticksAngles, function (tickAngle) {
return new graphic.Line({
shape: getAxisLineShape(polar, radiusExtent[1], radiusExtent[1] + tickLen, tickAngle)
});
});
this.group.add(graphic.mergePath(
lines, {
style: tickModel.getModel('lineStyle').getLineStyle()
}
));
},
/**
* @private
*/
_axisLabel: function (angleAxisModel, polar, ticksAngles, radiusExtent) {
var axis = angleAxisModel.axis;
var categoryData = angleAxisModel.get('data');
var labelModel = angleAxisModel.getModel('axisLabel');
var axisTextStyleModel = labelModel.getModel('textStyle');
var labels = angleAxisModel.getFormattedLabels();
var labelMargin = labelModel.get('margin');
var labelsAngles = axis.getLabelsCoords();
// Use length of ticksAngles because it may remove the last tick to avoid overlapping
for (var i = 0; i < ticksAngles.length; i++) {
var r = radiusExtent[1];
var p = polar.coordToPoint([r + labelMargin, labelsAngles[i]]);
var cx = polar.cx;
var cy = polar.cy;
var labelTextAlign = Math.abs(p[0] - cx) / r < 0.3
? 'center' : (p[0] > cx ? 'left' : 'right');
var labelTextBaseline = Math.abs(p[1] - cy) / r < 0.3
? 'middle' : (p[1] > cy ? 'top' : 'bottom');
var textStyleModel = axisTextStyleModel;
if (categoryData && categoryData[i] && categoryData[i].textStyle) {
textStyleModel = new Model(
categoryData[i].textStyle, axisTextStyleModel
);
}
this.group.add(new graphic.Text({
style: {
x: p[0],
y: p[1],
fill: textStyleModel.getTextColor(),
text: labels[i],
textAlign: labelTextAlign,
textVerticalAlign: labelTextBaseline,
textFont: textStyleModel.getFont()
},
silent: true
}));
}
},
/**
* @private
*/
_splitLine: function (angleAxisModel, polar, ticksAngles, radiusExtent) {
var splitLineModel = angleAxisModel.getModel('splitLine');
var lineStyleModel = splitLineModel.getModel('lineStyle');
var lineColors = lineStyleModel.get('color');
var lineCount = 0;
lineColors = lineColors instanceof Array ? lineColors : [lineColors];
var splitLines = [];
for (var i = 0; i < ticksAngles.length; i++) {
var colorIndex = (lineCount++) % lineColors.length;
splitLines[colorIndex] = splitLines[colorIndex] || [];
splitLines[colorIndex].push(new graphic.Line({
shape: getAxisLineShape(polar, radiusExtent[0], radiusExtent[1], ticksAngles[i])
}));
}
// Simple optimization
// Batching the lines if color are the same
for (var i = 0; i < splitLines.length; i++) {
this.group.add(graphic.mergePath(splitLines[i], {
style: zrUtil.defaults({
stroke: lineColors[i % lineColors.length]
}, lineStyleModel.getLineStyle()),
silent: true,
z: angleAxisModel.get('z')
}));
}
},
/**
* @private
*/
_splitArea: function (angleAxisModel, polar, ticksAngles, radiusExtent) {
var splitAreaModel = angleAxisModel.getModel('splitArea');
var areaStyleModel = splitAreaModel.getModel('areaStyle');
var areaColors = areaStyleModel.get('color');
var lineCount = 0;
areaColors = areaColors instanceof Array ? areaColors : [areaColors];
var splitAreas = [];
var RADIAN = Math.PI / 180;
var prevAngle = -ticksAngles[0] * RADIAN;
var r0 = Math.min(radiusExtent[0], radiusExtent[1]);
var r1 = Math.max(radiusExtent[0], radiusExtent[1]);
var clockwise = angleAxisModel.get('clockwise');
for (var i = 1; i < ticksAngles.length; i++) {
var colorIndex = (lineCount++) % areaColors.length;
splitAreas[colorIndex] = splitAreas[colorIndex] || [];
splitAreas[colorIndex].push(new graphic.Sector({
shape: {
cx: polar.cx,
cy: polar.cy,
r0: r0,
r: r1,
startAngle: prevAngle,
endAngle: -ticksAngles[i] * RADIAN,
clockwise: clockwise
},
silent: true
}));
prevAngle = -ticksAngles[i] * RADIAN;
}
// Simple optimization
// Batching the lines if color are the same
for (var i = 0; i < splitAreas.length; i++) {
this.group.add(graphic.mergePath(splitAreas[i], {
style: zrUtil.defaults({
fill: areaColors[i % areaColors.length]
}, areaStyleModel.getAreaStyle()),
silent: true
}));
}
}
});
});
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