410 lines
15 KiB
Plaintext
410 lines
15 KiB
Plaintext
define(function (require) {
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var PointerPath = require('./PointerPath');
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var graphic = require('../../util/graphic');
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var numberUtil = require('../../util/number');
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var parsePercent = numberUtil.parsePercent;
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function parsePosition(seriesModel, api) {
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var center = seriesModel.get('center');
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var width = api.getWidth();
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var height = api.getHeight();
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var size = Math.min(width, height);
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var cx = parsePercent(center[0], api.getWidth());
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var cy = parsePercent(center[1], api.getHeight());
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var r = parsePercent(seriesModel.get('radius'), size / 2);
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return {
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cx: cx,
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cy: cy,
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r: r
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};
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}
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function formatLabel(label, labelFormatter) {
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if (labelFormatter) {
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if (typeof labelFormatter === 'string') {
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label = labelFormatter.replace('{value}', label);
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}
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else if (typeof labelFormatter === 'function') {
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label = labelFormatter(label);
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}
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}
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return label;
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}
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var PI2 = Math.PI * 2;
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var GaugeView = require('../../view/Chart').extend({
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type: 'gauge',
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render: function (seriesModel, ecModel, api) {
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this.group.removeAll();
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var colorList = seriesModel.get('axisLine.lineStyle.color');
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var posInfo = parsePosition(seriesModel, api);
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this._renderMain(
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seriesModel, ecModel, api, colorList, posInfo
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);
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},
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_renderMain: function (seriesModel, ecModel, api, colorList, posInfo) {
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var group = this.group;
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var axisLineModel = seriesModel.getModel('axisLine');
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var lineStyleModel = axisLineModel.getModel('lineStyle');
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var clockwise = seriesModel.get('clockwise');
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var startAngle = -seriesModel.get('startAngle') / 180 * Math.PI;
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var endAngle = -seriesModel.get('endAngle') / 180 * Math.PI;
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var angleRangeSpan = (endAngle - startAngle) % PI2;
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var prevEndAngle = startAngle;
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var axisLineWidth = lineStyleModel.get('width');
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for (var i = 0; i < colorList.length; i++) {
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// Clamp
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var percent = Math.min(Math.max(colorList[i][0], 0), 1);
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var endAngle = startAngle + angleRangeSpan * percent;
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var sector = new graphic.Sector({
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shape: {
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startAngle: prevEndAngle,
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endAngle: endAngle,
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cx: posInfo.cx,
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cy: posInfo.cy,
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clockwise: clockwise,
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r0: posInfo.r - axisLineWidth,
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r: posInfo.r
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},
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silent: true
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});
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sector.setStyle({
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fill: colorList[i][1]
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});
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sector.setStyle(lineStyleModel.getLineStyle(
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// Because we use sector to simulate arc
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// so the properties for stroking are useless
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['color', 'borderWidth', 'borderColor']
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));
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group.add(sector);
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prevEndAngle = endAngle;
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}
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var getColor = function (percent) {
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// Less than 0
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if (percent <= 0) {
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return colorList[0][1];
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}
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for (var i = 0; i < colorList.length; i++) {
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if (colorList[i][0] >= percent
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&& (i === 0 ? 0 : colorList[i - 1][0]) < percent
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) {
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return colorList[i][1];
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}
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}
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// More than 1
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return colorList[i - 1][1];
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};
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if (!clockwise) {
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var tmp = startAngle;
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startAngle = endAngle;
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endAngle = tmp;
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}
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this._renderTicks(
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seriesModel, ecModel, api, getColor, posInfo,
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startAngle, endAngle, clockwise
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);
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this._renderPointer(
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seriesModel, ecModel, api, getColor, posInfo,
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startAngle, endAngle, clockwise
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);
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this._renderTitle(
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seriesModel, ecModel, api, getColor, posInfo
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);
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this._renderDetail(
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seriesModel, ecModel, api, getColor, posInfo
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);
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},
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_renderTicks: function (
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seriesModel, ecModel, api, getColor, posInfo,
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startAngle, endAngle, clockwise
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) {
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var group = this.group;
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var cx = posInfo.cx;
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var cy = posInfo.cy;
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var r = posInfo.r;
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var minVal = seriesModel.get('min');
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var maxVal = seriesModel.get('max');
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var splitLineModel = seriesModel.getModel('splitLine');
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var tickModel = seriesModel.getModel('axisTick');
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var labelModel = seriesModel.getModel('axisLabel');
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var splitNumber = seriesModel.get('splitNumber');
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var subSplitNumber = tickModel.get('splitNumber');
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var splitLineLen = parsePercent(
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splitLineModel.get('length'), r
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);
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var tickLen = parsePercent(
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tickModel.get('length'), r
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);
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var angle = startAngle;
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var step = (endAngle - startAngle) / splitNumber;
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var subStep = step / subSplitNumber;
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var splitLineStyle = splitLineModel.getModel('lineStyle').getLineStyle();
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var tickLineStyle = tickModel.getModel('lineStyle').getLineStyle();
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var textStyleModel = labelModel.getModel('textStyle');
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for (var i = 0; i <= splitNumber; i++) {
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var unitX = Math.cos(angle);
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var unitY = Math.sin(angle);
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// Split line
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if (splitLineModel.get('show')) {
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var splitLine = new graphic.Line({
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shape: {
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x1: unitX * r + cx,
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y1: unitY * r + cy,
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x2: unitX * (r - splitLineLen) + cx,
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y2: unitY * (r - splitLineLen) + cy
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},
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style: splitLineStyle,
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silent: true
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});
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if (splitLineStyle.stroke === 'auto') {
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splitLine.setStyle({
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stroke: getColor(i / splitNumber)
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});
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}
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group.add(splitLine);
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}
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// Label
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if (labelModel.get('show')) {
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var label = formatLabel(
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numberUtil.round(i / splitNumber * (maxVal - minVal) + minVal),
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labelModel.get('formatter')
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);
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var text = new graphic.Text({
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style: {
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text: label,
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x: unitX * (r - splitLineLen - 5) + cx,
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y: unitY * (r - splitLineLen - 5) + cy,
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fill: textStyleModel.getTextColor(),
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textFont: textStyleModel.getFont(),
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textVerticalAlign: unitY < -0.4 ? 'top' : (unitY > 0.4 ? 'bottom' : 'middle'),
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textAlign: unitX < -0.4 ? 'left' : (unitX > 0.4 ? 'right' : 'center')
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},
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silent: true
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});
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if (text.style.fill === 'auto') {
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text.setStyle({
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fill: getColor(i / splitNumber)
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});
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}
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group.add(text);
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}
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// Axis tick
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if (tickModel.get('show') && i !== splitNumber) {
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for (var j = 0; j <= subSplitNumber; j++) {
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var unitX = Math.cos(angle);
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var unitY = Math.sin(angle);
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var tickLine = new graphic.Line({
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shape: {
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x1: unitX * r + cx,
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y1: unitY * r + cy,
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x2: unitX * (r - tickLen) + cx,
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y2: unitY * (r - tickLen) + cy
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},
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silent: true,
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style: tickLineStyle
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});
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if (tickLineStyle.stroke === 'auto') {
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tickLine.setStyle({
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stroke: getColor((i + j / subSplitNumber) / splitNumber)
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});
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}
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group.add(tickLine);
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angle += subStep;
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}
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angle -= subStep;
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}
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else {
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angle += step;
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}
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}
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},
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_renderPointer: function (
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seriesModel, ecModel, api, getColor, posInfo,
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startAngle, endAngle, clockwise
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) {
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var valueExtent = [+seriesModel.get('min'), +seriesModel.get('max')];
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var angleExtent = [startAngle, endAngle];
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if (!clockwise) {
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angleExtent = angleExtent.reverse();
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}
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var data = seriesModel.getData();
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var oldData = this._data;
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var group = this.group;
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data.diff(oldData)
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.add(function (idx) {
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var pointer = new PointerPath({
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shape: {
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angle: startAngle
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}
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});
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graphic.updateProps(pointer, {
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shape: {
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angle: numberUtil.linearMap(data.get('value', idx), valueExtent, angleExtent, true)
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}
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}, seriesModel);
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group.add(pointer);
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data.setItemGraphicEl(idx, pointer);
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})
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.update(function (newIdx, oldIdx) {
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var pointer = oldData.getItemGraphicEl(oldIdx);
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graphic.updateProps(pointer, {
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shape: {
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angle: numberUtil.linearMap(data.get('value', newIdx), valueExtent, angleExtent, true)
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}
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}, seriesModel);
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group.add(pointer);
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data.setItemGraphicEl(newIdx, pointer);
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})
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.remove(function (idx) {
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var pointer = oldData.getItemGraphicEl(idx);
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group.remove(pointer);
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})
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.execute();
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data.eachItemGraphicEl(function (pointer, idx) {
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var itemModel = data.getItemModel(idx);
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var pointerModel = itemModel.getModel('pointer');
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pointer.setShape({
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x: posInfo.cx,
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y: posInfo.cy,
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width: parsePercent(
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pointerModel.get('width'), posInfo.r
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),
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r: parsePercent(pointerModel.get('length'), posInfo.r)
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});
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pointer.useStyle(itemModel.getModel('itemStyle.normal').getItemStyle());
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if (pointer.style.fill === 'auto') {
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pointer.setStyle('fill', getColor(
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(data.get('value', idx) - valueExtent[0]) / (valueExtent[1] - valueExtent[0])
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));
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}
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graphic.setHoverStyle(
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pointer, itemModel.getModel('itemStyle.emphasis').getItemStyle()
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);
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});
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this._data = data;
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},
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_renderTitle: function (
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seriesModel, ecModel, api, getColor, posInfo
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) {
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var titleModel = seriesModel.getModel('title');
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if (titleModel.get('show')) {
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var textStyleModel = titleModel.getModel('textStyle');
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var offsetCenter = titleModel.get('offsetCenter');
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var x = posInfo.cx + parsePercent(offsetCenter[0], posInfo.r);
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var y = posInfo.cy + parsePercent(offsetCenter[1], posInfo.r);
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var text = new graphic.Text({
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style: {
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x: x,
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y: y,
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// FIXME First data name ?
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text: seriesModel.getData().getName(0),
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fill: textStyleModel.getTextColor(),
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textFont: textStyleModel.getFont(),
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textAlign: 'center',
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textVerticalAlign: 'middle'
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}
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});
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this.group.add(text);
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}
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},
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_renderDetail: function (
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seriesModel, ecModel, api, getColor, posInfo
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) {
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var detailModel = seriesModel.getModel('detail');
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var minVal = seriesModel.get('min');
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var maxVal = seriesModel.get('max');
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if (detailModel.get('show')) {
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var textStyleModel = detailModel.getModel('textStyle');
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var offsetCenter = detailModel.get('offsetCenter');
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var x = posInfo.cx + parsePercent(offsetCenter[0], posInfo.r);
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var y = posInfo.cy + parsePercent(offsetCenter[1], posInfo.r);
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var width = parsePercent(detailModel.get('width'), posInfo.r);
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var height = parsePercent(detailModel.get('height'), posInfo.r);
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var value = seriesModel.getData().get('value', 0);
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var rect = new graphic.Rect({
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shape: {
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x: x - width / 2,
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y: y - height / 2,
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width: width,
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height: height
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},
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style: {
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text: formatLabel(
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// FIXME First data name ?
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value, detailModel.get('formatter')
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),
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fill: detailModel.get('backgroundColor'),
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textFill: textStyleModel.getTextColor(),
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textFont: textStyleModel.getFont()
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}
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});
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if (rect.style.textFill === 'auto') {
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rect.setStyle('textFill', getColor(
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numberUtil.linearMap(value, [minVal, maxVal], [0, 1], true)
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));
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}
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rect.setStyle(detailModel.getItemStyle(['color']));
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this.group.add(rect);
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}
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}
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});
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return GaugeView;
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}); |