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zrender
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@ -228,7 +228,7 @@ else if (debugMode > 1) {
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### LRU.js
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### LRU.js
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doubly linked list.
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优化后的双向链表,时间复杂度o(1)。
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```js
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```js
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linkedListProto.insertEntry = function (entry) {
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linkedListProto.insertEntry = function (entry) {
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@ -349,10 +349,39 @@ LRUProto.get = function (key) {
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### PathProxy.js
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### PathProxy.js
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Path 代理,可以在`buildPath`中用于替代`ctx`, 会保存每个path操作的命令到pathCommands属性中可以用于isInsidePath 判断以及获取boundingRect。
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比原生Path的好处:1、数据可保存可恢复;2、支持bounding、isInside判断;3、可以封装一些自定义path;
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```js
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/*
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保存 path 数据的思路:
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1、用整数来表示绘制指令,cmd定义
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2、绘制的时候用普通数组 push 指令和坐标
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3、绘制完成(fill、stroke)时将普通数组转成 Float32Array 静态存储,减少堆内存占用
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*/
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/**
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* 转成静态的 Float32Array 减少堆内存占用
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* Convert dynamic array to static Float32Array
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*/
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function toStatic () {
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var data = this.data;
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if (data instanceof Array) {
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data.length = this._len;
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if (hasTypedArray) {
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this.data = new Float32Array(data);
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}
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}
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}
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```
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### timsort.js
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### timsort.js
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https://github.com/mziccard/node-timsort
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时间复杂度为 nlogn 的排序算法
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https://www.infopulse.com/blog/timsort-sorting-algorithm/
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* [node-timsort](https://github.com/mziccard/node-timsort)
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* [timsort-sorting-algorithm](https://www.infopulse.com/blog/timsort-sorting-algorithm/)
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### util.js
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### util.js
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@ -373,4 +402,4 @@ https://www.infopulse.com/blog/timsort-sorting-algorithm/
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### vector.js
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### vector.js
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向量
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向量操作
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