src/util/symbol.js

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// Symbol factory
define(function(require) {

    'use strict';

    var graphic = require('./graphic');
    var BoundingRect = require('zrender/core/BoundingRect');

    /**
     * Triangle shape
     * @inner
     */
    var Triangle = graphic.extendShape({
        type: 'triangle',
        shape: {
            cx: 0,
            cy: 0,
            width: 0,
            height: 0
        },
        buildPath: function (path, shape) {
            var cx = shape.cx;
            var cy = shape.cy;
            var width = shape.width / 2;
            var height = shape.height / 2;
            path.moveTo(cx, cy - height);
            path.lineTo(cx + width, cy + height);
            path.lineTo(cx - width, cy + height);
            path.closePath();
        }
    });
    /**
     * Diamond shape
     * @inner
     */
    var Diamond = graphic.extendShape({
        type: 'diamond',
        shape: {
            cx: 0,
            cy: 0,
            width: 0,
            height: 0
        },
        buildPath: function (path, shape) {
            var cx = shape.cx;
            var cy = shape.cy;
            var width = shape.width / 2;
            var height = shape.height / 2;
            path.moveTo(cx, cy - height);
            path.lineTo(cx + width, cy);
            path.lineTo(cx, cy + height);
            path.lineTo(cx - width, cy);
            path.closePath();
        }
    });

    /**
     * Pin shape
     * @inner
     */