75 lines
1.5 KiB
JavaScript
75 lines
1.5 KiB
JavaScript
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var Path = require("../Path");
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var _subPixelOptimize = require("../helper/subPixelOptimize");
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var subPixelOptimizeLine = _subPixelOptimize.subPixelOptimizeLine;
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/**
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* 直线
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* @module zrender/graphic/shape/Line
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*/
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// Avoid create repeatly.
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var subPixelOptimizeOutputShape = {};
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var _default = Path.extend({
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type: 'line',
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shape: {
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// Start point
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x1: 0,
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y1: 0,
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// End point
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x2: 0,
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y2: 0,
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percent: 1
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},
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style: {
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stroke: '#000',
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fill: null
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},
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buildPath: function (ctx, shape) {
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var x1;
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var y1;
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var x2;
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var y2;
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if (this.subPixelOptimize) {
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subPixelOptimizeLine(subPixelOptimizeOutputShape, shape, this.style);
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x1 = subPixelOptimizeOutputShape.x1;
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y1 = subPixelOptimizeOutputShape.y1;
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x2 = subPixelOptimizeOutputShape.x2;
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y2 = subPixelOptimizeOutputShape.y2;
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} else {
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x1 = shape.x1;
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y1 = shape.y1;
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x2 = shape.x2;
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y2 = shape.y2;
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}
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var percent = shape.percent;
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if (percent === 0) {
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return;
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}
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ctx.moveTo(x1, y1);
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if (percent < 1) {
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x2 = x1 * (1 - percent) + x2 * percent;
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y2 = y1 * (1 - percent) + y2 * percent;
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}
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ctx.lineTo(x2, y2);
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},
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/**
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* Get point at percent
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* @param {number} percent
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* @return {Array.<number>}
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*/
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pointAt: function (p) {
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var shape = this.shape;
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return [shape.x1 * (1 - p) + shape.x2 * p, shape.y1 * (1 - p) + shape.y2 * p];
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}
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});
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module.exports = _default;
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