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334
frontend/node_modules/echarts/lib/util/symbol.js
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334
frontend/node_modules/echarts/lib/util/symbol.js
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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/**
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* AUTO-GENERATED FILE. DO NOT MODIFY.
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*/
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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// Symbol factory
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import { each, isArray, retrieve2 } from 'zrender/lib/core/util.js';
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import * as graphic from './graphic.js';
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import BoundingRect from 'zrender/lib/core/BoundingRect.js';
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import { calculateTextPosition } from 'zrender/lib/contain/text.js';
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import { parsePercent } from './number.js';
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/**
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* Triangle shape
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* @inner
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*/
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var Triangle = graphic.Path.extend({
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type: 'triangle',
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shape: {
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cx: 0,
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cy: 0,
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width: 0,
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height: 0
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},
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buildPath: function (path, shape) {
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var cx = shape.cx;
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var cy = shape.cy;
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var width = shape.width / 2;
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var height = shape.height / 2;
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path.moveTo(cx, cy - height);
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path.lineTo(cx + width, cy + height);
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path.lineTo(cx - width, cy + height);
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path.closePath();
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}
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});
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/**
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* Diamond shape
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* @inner
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*/
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var Diamond = graphic.Path.extend({
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type: 'diamond',
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shape: {
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cx: 0,
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cy: 0,
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width: 0,
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height: 0
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},
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buildPath: function (path, shape) {
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var cx = shape.cx;
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var cy = shape.cy;
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var width = shape.width / 2;
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var height = shape.height / 2;
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path.moveTo(cx, cy - height);
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path.lineTo(cx + width, cy);
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path.lineTo(cx, cy + height);
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path.lineTo(cx - width, cy);
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path.closePath();
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}
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});
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/**
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* Pin shape
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* @inner
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*/
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var Pin = graphic.Path.extend({
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type: 'pin',
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shape: {
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// x, y on the cusp
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x: 0,
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y: 0,
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width: 0,
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height: 0
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},
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buildPath: function (path, shape) {
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var x = shape.x;
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var y = shape.y;
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var w = shape.width / 5 * 3;
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// Height must be larger than width
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var h = Math.max(w, shape.height);
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var r = w / 2;
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// Dist on y with tangent point and circle center
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var dy = r * r / (h - r);
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var cy = y - h + r + dy;
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var angle = Math.asin(dy / r);
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// Dist on x with tangent point and circle center
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var dx = Math.cos(angle) * r;
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var tanX = Math.sin(angle);
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var tanY = Math.cos(angle);
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var cpLen = r * 0.6;
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var cpLen2 = r * 0.7;
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path.moveTo(x - dx, cy + dy);
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path.arc(x, cy, r, Math.PI - angle, Math.PI * 2 + angle);
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path.bezierCurveTo(x + dx - tanX * cpLen, cy + dy + tanY * cpLen, x, y - cpLen2, x, y);
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path.bezierCurveTo(x, y - cpLen2, x - dx + tanX * cpLen, cy + dy + tanY * cpLen, x - dx, cy + dy);
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path.closePath();
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}
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});
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/**
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* Arrow shape
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* @inner
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*/
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var Arrow = graphic.Path.extend({
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type: 'arrow',
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shape: {
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x: 0,
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y: 0,
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width: 0,
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height: 0
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},
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buildPath: function (ctx, shape) {
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var height = shape.height;
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var width = shape.width;
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var x = shape.x;
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var y = shape.y;
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var dx = width / 3 * 2;
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ctx.moveTo(x, y);
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ctx.lineTo(x + dx, y + height);
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ctx.lineTo(x, y + height / 4 * 3);
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ctx.lineTo(x - dx, y + height);
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ctx.lineTo(x, y);
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ctx.closePath();
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}
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});
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/**
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* Map of path constructors
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*/
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// TODO Use function to build symbol path.
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var symbolCtors = {
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line: graphic.Line,
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rect: graphic.Rect,
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roundRect: graphic.Rect,
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square: graphic.Rect,
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circle: graphic.Circle,
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diamond: Diamond,
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pin: Pin,
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arrow: Arrow,
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triangle: Triangle
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};
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var symbolShapeMakers = {
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line: function (x, y, w, h, shape) {
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shape.x1 = x;
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shape.y1 = y + h / 2;
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shape.x2 = x + w;
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shape.y2 = y + h / 2;
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},
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rect: function (x, y, w, h, shape) {
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shape.x = x;
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shape.y = y;
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shape.width = w;
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shape.height = h;
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},
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roundRect: function (x, y, w, h, shape) {
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shape.x = x;
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shape.y = y;
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shape.width = w;
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shape.height = h;
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shape.r = Math.min(w, h) / 4;
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},
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square: function (x, y, w, h, shape) {
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var size = Math.min(w, h);
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shape.x = x;
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shape.y = y;
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shape.width = size;
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shape.height = size;
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},
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circle: function (x, y, w, h, shape) {
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// Put circle in the center of square
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shape.cx = x + w / 2;
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shape.cy = y + h / 2;
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shape.r = Math.min(w, h) / 2;
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},
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diamond: function (x, y, w, h, shape) {
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shape.cx = x + w / 2;
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shape.cy = y + h / 2;
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shape.width = w;
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shape.height = h;
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},
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pin: function (x, y, w, h, shape) {
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shape.x = x + w / 2;
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shape.y = y + h / 2;
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shape.width = w;
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shape.height = h;
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},
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arrow: function (x, y, w, h, shape) {
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shape.x = x + w / 2;
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shape.y = y + h / 2;
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shape.width = w;
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shape.height = h;
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},
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triangle: function (x, y, w, h, shape) {
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shape.cx = x + w / 2;
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shape.cy = y + h / 2;
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shape.width = w;
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shape.height = h;
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}
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};
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export var symbolBuildProxies = {};
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each(symbolCtors, function (Ctor, name) {
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symbolBuildProxies[name] = new Ctor();
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});
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var SymbolClz = graphic.Path.extend({
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type: 'symbol',
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shape: {
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symbolType: '',
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x: 0,
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y: 0,
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width: 0,
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height: 0
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},
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calculateTextPosition: function (out, config, rect) {
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var res = calculateTextPosition(out, config, rect);
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var shape = this.shape;
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if (shape && shape.symbolType === 'pin' && config.position === 'inside') {
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res.y = rect.y + rect.height * 0.4;
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}
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return res;
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},
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buildPath: function (ctx, shape, inBundle) {
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var symbolType = shape.symbolType;
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if (symbolType !== 'none') {
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var proxySymbol = symbolBuildProxies[symbolType];
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if (!proxySymbol) {
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// Default rect
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symbolType = 'rect';
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proxySymbol = symbolBuildProxies[symbolType];
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}
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symbolShapeMakers[symbolType](shape.x, shape.y, shape.width, shape.height, proxySymbol.shape);
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proxySymbol.buildPath(ctx, proxySymbol.shape, inBundle);
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}
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}
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});
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// Provide setColor helper method to avoid determine if set the fill or stroke outside
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function symbolPathSetColor(color, innerColor) {
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if (this.type !== 'image') {
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var symbolStyle = this.style;
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if (this.__isEmptyBrush) {
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symbolStyle.stroke = color;
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symbolStyle.fill = innerColor || '#fff';
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// TODO Same width with lineStyle in LineView
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symbolStyle.lineWidth = 2;
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} else if (this.shape.symbolType === 'line') {
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symbolStyle.stroke = color;
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} else {
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symbolStyle.fill = color;
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}
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this.markRedraw();
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}
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}
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/**
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* Create a symbol element with given symbol configuration: shape, x, y, width, height, color
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*/
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export function createSymbol(symbolType, x, y, w, h, color,
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// whether to keep the ratio of w/h,
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keepAspect) {
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// TODO Support image object, DynamicImage.
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var isEmpty = symbolType.indexOf('empty') === 0;
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if (isEmpty) {
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symbolType = symbolType.substr(5, 1).toLowerCase() + symbolType.substr(6);
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}
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var symbolPath;
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if (symbolType.indexOf('image://') === 0) {
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symbolPath = graphic.makeImage(symbolType.slice(8), new BoundingRect(x, y, w, h), keepAspect ? 'center' : 'cover');
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} else if (symbolType.indexOf('path://') === 0) {
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symbolPath = graphic.makePath(symbolType.slice(7), {}, new BoundingRect(x, y, w, h), keepAspect ? 'center' : 'cover');
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} else {
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symbolPath = new SymbolClz({
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shape: {
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symbolType: symbolType,
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x: x,
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y: y,
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width: w,
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height: h
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}
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});
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}
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symbolPath.__isEmptyBrush = isEmpty;
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// TODO Should deprecate setColor
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symbolPath.setColor = symbolPathSetColor;
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if (color) {
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symbolPath.setColor(color);
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}
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return symbolPath;
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}
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export function normalizeSymbolSize(symbolSize) {
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if (!isArray(symbolSize)) {
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symbolSize = [+symbolSize, +symbolSize];
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}
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return [symbolSize[0] || 0, symbolSize[1] || 0];
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}
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export function normalizeSymbolOffset(symbolOffset, symbolSize) {
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if (symbolOffset == null) {
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return;
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}
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if (!isArray(symbolOffset)) {
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symbolOffset = [symbolOffset, symbolOffset];
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}
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return [parsePercent(symbolOffset[0], symbolSize[0]) || 0, parsePercent(retrieve2(symbolOffset[1], symbolOffset[0]), symbolSize[1]) || 0];
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}
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