init

2020-04-27 16:39:48 +08:00
parent 30ef9522a4
commit 80c7f6c3ca
40 changed files with 2776 additions and 1119 deletions
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -1,31 +0,0 @@
-module.exports = {
-  root: true,
-  env: {
-    node: true
-  },
-  extends: [
-    "plugin:vue/essential",
-    "eslint:recommended",
-    "@vue/typescript/recommended",
-    "@vue/prettier",
-    "@vue/prettier/@typescript-eslint"
-  ],
-  parserOptions: {
-    ecmaVersion: 2020
-  },
-  rules: {
-    "no-console": process.env.NODE_ENV === "production" ? "warn" : "off",
-    "no-debugger": process.env.NODE_ENV === "production" ? "warn" : "off"
-  },
-  overrides: [
-    {
-      files: [
-        "**/__tests__/*.{j,t}s?(x)",
-        "**/tests/unit/**/*.spec.{j,t}s?(x)"
-      ],
-      env: {
-        jest: true
-      }
-    }
-  ]
-};
--- a/README.md
+++ b/README.md
@@ -1,29 +1,3 @@
-# cut-demo
-
-## Project setup
-```
-npm install
-```
-
-### Compiles and hot-reloads for development
-```
-npm run serve
-```
-
-### Compiles and minifies for production
-```
-npm run build
-```
-
-### Run your unit tests
-```
-npm run test:unit
-```
-
-### Lints and fixes files
-```
-npm run lint
-```
-
-### Customize configuration
-See [Configuration Reference](https://cli.vuejs.org/config/).
+### 依赖
+- js-angusj-clipper
+- monotone-convex-hull-2d
--- a/package-lock.json
+++ b/package-lock.json
--- a/package.json
+++ b/package.json
@@ -10,27 +10,26 @@
  },
  "dependencies": {
    "core-js": "^3.6.4",
+    "element-ui": "^2.13.1",
+    "iconv-lite": "^0.5.1",
+    "js-angusj-clipper": "^1.0.4",
+    "jszip": "^3.4.0",
+    "monotone-convex-hull-2d": "^1.0.1",
    "vue": "^2.6.11"
  },
  "devDependencies": {
    "@types/jest": "^24.0.19",
-    "@typescript-eslint/eslint-plugin": "^2.26.0",
-    "@typescript-eslint/parser": "^2.26.0",
+    "@types/node": "^13.13.4",
    "@vue/cli-plugin-babel": "~4.3.0",
-    "@vue/cli-plugin-eslint": "~4.3.0",
    "@vue/cli-plugin-typescript": "~4.3.0",
    "@vue/cli-plugin-unit-jest": "~4.3.0",
    "@vue/cli-service": "~4.3.0",
-    "@vue/eslint-config-prettier": "^6.0.0",
-    "@vue/eslint-config-typescript": "^5.0.2",
    "@vue/test-utils": "1.0.0-beta.31",
-    "eslint": "^6.7.2",
-    "eslint-plugin-prettier": "^3.1.1",
-    "eslint-plugin-vue": "^6.2.2",
    "prettier": "^1.19.1",
    "sass": "^1.26.3",
    "sass-loader": "^8.0.2",
    "typescript": "~3.8.3",
-    "vue-template-compiler": "^2.6.11"
+    "vue-template-compiler": "^2.6.11",
+    "worker-loader": "^2.0.0"
  }
 }
--- a/src/App.vue
+++ b/src/App.vue
@@ -1,29 +1,64 @@
 <template>
  <div id="app">
-    <img alt="Vue logo" src="./assets/logo.png" />
-    <HelloWorld msg="Welcome to Your Vue.js + TypeScript App" />
+    <select-file accept=".cfdat" button-type="primary" @change="loadCFData"
+      >导入CFDATA</select-file
+    >
+    <el-button @click="stopThread">停止优化</el-button>
  </div>
 </template>

 <script lang="ts">
 import Vue from "vue";
-import HelloWorld from "./components/HelloWorld.vue";
+import SelectFile from "@/components/SelectFile.vue";
+import * as fileHelper from "@/Business/FileHelper";
+
+// import JSZip from "jszip";
+// import iconv from "iconv-lite";
+import { BlockConvert } from "./Business/BlockConvert";
+import { LayoutEngine } from "./Business/LayoutEngine";
+
+let engine: { stopThread: () => void };

 export default Vue.extend({
-  name: "App",
-  components: {
-    HelloWorld
+  name: "app",
+  components: { SelectFile },
+  data() {
+    return {
+      activeGroupName: "config",
+      activeName: "0",
+      planOrder: null,
+      importCncText: "",
+      files: new Array<string>()
+    };
+  },
+  mounted() {
+    document.title = "开料调试工具 - " + document.title;
+  },
+  methods: {
+    /**读取文件 */
+    async loadCFData(files: FileList) {
+      const json = await fileHelper.readText(files[0]);
+
+      this.newLayout(json);
+    },
+    newLayout(planJson: string) {
+      const plan = JSON.parse(planJson);
+      console.log(plan);
+      const engine = new LayoutEngine();
+      const blockConvert = new BlockConvert();
+      const parts = [];
+      for (const block of plan["BlockList"]) {
+        parts.push(blockConvert.createPart(block, engine.board));
+      }
+      console.log(parts);
+
+      engine.init(parts);
+      // engine.run();
+      engine.startThread();
+    },
+    stopThread() {
+      engine.stopThread();
+    }
  }
 });
 </script>
-
-<style lang="scss">
-#app {
-  font-family: Avenir, Helvetica, Arial, sans-serif;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-  text-align: center;
-  color: #2c3e50;
-  margin-top: 60px;
-}
-</style>
--- a/src/Business/BlockConvert.ts
+++ b/src/Business/BlockConvert.ts
@@ -0,0 +1,21 @@
+import { Path } from '../Nest/Core/Path';
+import { Part } from '../Nest/Core/Part';
+export class BlockConvert{
+    /**
+     *
+     */
+    constructor() {
+        // super();
+        
+    }
+    createPart(data:any,board:Path){
+        let id = data['BlockID'];
+        let width = data['Width'];
+        let height = data['Length'];
+        let part = new Part();
+        part.Id = id;
+        part.Init(new Path([{ x: 0, y: 0 }, { x: width, y: 0 }, { x: width, y: height }, { x: 0, y: height }]),board);
+        part.UserData = data;
+        return part;
+    }
+}
--- a/src/Business/BlockView.ts
+++ b/src/Business/BlockView.ts
@@ -0,0 +1,11 @@
+export class BlockView{
+    /**
+     *
+     */
+    constructor(canvas:HTMLCanvasElement) {
+        
+    }
+    drawBlock(){
+
+    }
+}
--- a/src/Business/FileHelper.ts
+++ b/src/Business/FileHelper.ts
@@ -0,0 +1,9 @@
+export async function readText(file:Blob,encoding?:string):Promise<string>{
+    return new Promise((resolve)=>{
+        let fileReader = new FileReader();
+        fileReader.onload=function(e){
+            resolve(<string>this.result);
+        }
+        fileReader.readAsText(file,encoding)
+    })
+}
--- a/src/Business/LayoutConfig.ts
+++ b/src/Business/LayoutConfig.ts
@@ -0,0 +1,5 @@
+export class LayoutConfig{
+    loadLegacyConfig(){
+        
+    }
+}
--- a/src/Business/LayoutEngine.ts
+++ b/src/Business/LayoutEngine.ts
@@ -0,0 +1,88 @@
+import { Part } from '../Nest/Core/Part';
+import { Path } from '../Nest/Core/Path';
+import { DefaultBin } from '../Nest/Core/DefaultBin';
+import { PathGeneratorSingle } from '../Nest/Core/PathGenerator';
+import { NestCache } from '../Nest/Core/NestCache';
+import { NestDatabase } from '../Nest/Core/NestDatabase';
+import { NestFiler } from '../Nest/Common/Filer';
+import { OptimizeMachine } from '../Nest/Core/OptimizeMachine';
+import { Individual } from '../Nest/Core/Individual';
+import Worker from "../Nest/Core/OptimizeWorker.worker";
+import { InitClipperCpp } from '../Nest/Common/ClipperCpp';
+
+export class LayoutEngine {
+    parts: Part[] = [];
+    board: Path;
+    threads: Worker[] = [];
+    /**
+     *
+     */
+    constructor() {
+
+        //清理缓存,这个缓存是全局的
+        PathGeneratorSingle.Clear();
+        NestCache.Clear();
+        DefaultBin.InsideNFPCache = {};
+
+        //注册bin
+        let binPath = DefaultBin;
+        // binPath.Id = undefined; //清除这个缓存
+        PathGeneratorSingle.RegisterId(binPath);
+
+        this.board = binPath;
+
+    }
+    init(parts: Part[]) {
+        this.parts = parts;
+    }
+
+    async run() {
+        await InitClipperCpp();
+        let m = new OptimizeMachine;//优化器
+        m.Bin = this.board; //指定Bin容器
+        m.PutParts(this.parts);//把零件放上去
+        let count = 0;
+        m.callBack = async (i: Individual) => {
+            console.log('优化结果', i);
+            count++;
+            if(count>10){
+                m.Suspend();//关闭优化器
+            }
+            
+        }//当有新结果时,回调
+
+        await m.Start();//启动这个
+    }
+
+    async startThread() {
+
+        let db = new NestDatabase();
+        db.Paths = PathGeneratorSingle.paths;
+        db.Parts = this.parts;
+        db.Bin = DefaultBin
+
+        let f = new NestFiler();
+        db.WriteFile(f);//写入到文件中
+        let best = Infinity;
+
+        let t = new Worker;
+        this.threads = [t];
+
+        t.onmessage = (e) => {
+            let f = new NestFiler(e.data);
+            let inv = new Individual(db.Parts);
+            inv.ReadFile(f);
+            if (best <= inv.Fitness)
+                return;
+            best = inv.Fitness;
+            let text = `优化率:${inv.Fitness}`;
+            console.log(text);
+        };
+        t.postMessage(f._datas);//Post给Worker
+
+    }
+
+    async stopThread() {
+        this.threads[0].terminate()
+    }
+}
--- a/src/Common/ArrayExt.ts
+++ b/src/Common/ArrayExt.ts
@@ -0,0 +1,185 @@
+/**
+ * 删除数组中指定的元素,返回数组本身
+ * @param {Array<any>} arr 需要操作的数组
+ * @param {*} el 需要移除的元素
+ */
+export function arrayRemove<T>(arr: Array<T>, el: T): Array<T>
+{
+    let j = 0;
+    for (let i = 0, l = arr.length; i < l; i++)
+    {
+        if (arr[i] !== el)
+        {
+            arr[j++] = arr[i];
+        }
+    }
+    arr.length = j;
+
+    return arr;
+}
+
+
+export function arrayRemoveOnce<T>(arr: Array<T>, el: T): Array<T>
+{
+    let index = arr.indexOf(el);
+    if (index !== -1)
+        arr.splice(index, 1);
+    return arr;
+}
+
+/**
+ * 删除通过函数校验的元素
+ * @param {(e: T) => boolean} checkFuntion 校验函数
+ */
+export function arrayRemoveIf<T>(arr: Array<T>, checkFuntion: (e: T) => boolean): Array<T>
+{
+    let j = 0;
+    for (let i = 0, l = arr.length; i < l; i++)
+    {
+        if (!checkFuntion(arr[i]))
+        {
+            arr[j++] = arr[i];
+        }
+    }
+    arr.length = j;
+
+    return arr;
+}
+
+export function arrayFirst<T>(arr: Array<T>): T
+{
+    return arr[0];
+}
+
+export function arrayLast<T>(arr: { [key: number]: T, length: number; }): T
+{
+    return arr[arr.length - 1];
+}
+
+/**
+ * 根据数值从小到大排序数组
+ * @param {Array<T>} arr
+ * @returns {Array<T>} 返回自身
+ */
+export function arraySortByNumber<T>(arr: Array<T>): Array<T>
+{
+    arr.sort(sortNumberCompart);
+    return arr;
+}
+
+/**
+ * 对排序好的数组进行去重操作
+ * @param {(e1, e2) => boolean} [checkFuction] 校验对象相等函数
+ * @returns {Array<T>} 返回自身
+ */
+export function arrayRemoveDuplicateBySort<T>(arr: Array<T>, checkFuction: (e1: T, e2: T) => boolean = checkEqual): Array<T>
+{
+    if (arr.length < 2) return arr;
+    let j = 1;
+    for (let i = 1, l = arr.length; i < l; i++)
+        if (!checkFuction(arr[j - 1], arr[i]))
+            arr[j++] = arr[i];
+    arr.length = j;
+    return arr;
+}
+
+/**
+ * 对排序好的数组进行去重操作
+ * @param {(e1, e2) => boolean} [checkFuction] 校验对象相等函数
+ * @returns {Array<T>} 返回新数组
+ */
+export function arrayRemoveDuplicateBySort2<T>(arr: Array<T>, checkFuction: (e1: T, e2: T) => boolean = checkEqual): Array<T>
+{
+    if (arr.length < 2) return arr;
+
+    let pre = arr[0],
+        newArr = [pre],
+        now: T;
+
+    for (let i = 1, len = arr.length; i < len; i++)
+    {
+        now = arr[i];
+        if (!checkFuction(pre, now))
+        {
+            newArr.push(now);
+            pre = now;
+        }
+    }
+
+    if (pre !== now) newArr.push(now);
+
+    return newArr;
+}
+
+//原地更新数组,注意这个函数并不会比map快.
+export function arrayMap<T>(arr: Array<T>, mapFunc: (v: T) => T): Array<T>
+{
+    for (let i = 0, count = arr.length; i < count; i++)
+        arr[i] = mapFunc(arr[i]);
+    return arr;
+}
+
+function sortNumberCompart(e1: any, e2: any)
+{
+    return e1 - e2;
+}
+
+function checkEqual(e1: any, e2: any): boolean
+{
+    return e1 === e2;
+}
+
+/**
+ * 改变数组的值顺序
+ * @param arr 需要改变初始值位置的数组
+ * @param index  //将index位置以后的值放到起始位置
+ */
+export function changeArrayStartIndex<T>(arr: T[], index: number): T[]
+{
+    arr.unshift(...arr.splice(index));
+    return arr;
+}
+
+export function equalArray<T>(a: T[], b: T[], checkF = checkEqual)
+{
+    if (a === b) return true;
+    if (a.length !== b.length) return false;
+    for (var i = 0; i < a.length; ++i)
+        if (!checkF(a[i], b[i])) return false;
+    return true;
+}
+
+export function arrayClone<T>(arr: T[]): T[]
+{
+    return arr.slice();
+}
+
+//https://jsperf.com/merge-array-implementations/30
+export function arrayPushArray<T>(arr1: T[], arr2: T[]): T[]
+{
+    let arr1Length = arr1.length;
+    let arr2Length = arr2.length;
+    arr1.length = arr1Length + arr2Length;
+    for (let i = 0; i < arr2Length; i++)
+        arr1[arr1Length + i] = arr2[i];
+
+    return arr1;
+}
+
+export function arraySum(arr: number[])
+{
+    let sum = 0;
+    for (let n of arr) sum += n;
+    return sum;
+}
+
+export function FilterSet<T>(s: Set<T>, fn: (el: T) => boolean): Set<T>
+{
+    let ns = new Set<T>();
+    for (let el of s)
+    {
+        if (fn(el))
+            ns.add(el);
+    }
+    return ns;
+}
--- a/src/Common/Sleep.ts
+++ b/src/Common/Sleep.ts
@@ -0,0 +1,7 @@
+export async function Sleep(time: number)
+{
+    return new Promise(res =>
+    {
+        setTimeout(res, time);
+    });
+}
--- a/src/Nest/Common/Box2.ts
+++ b/src/Nest/Common/Box2.ts
@@ -0,0 +1,160 @@
+import { Vector2 } from "./Vector2";
+import { Point } from "./Point";
+
+export class Box2
+{
+    min: Vector2;
+    max: Vector2;
+    constructor(min = new Vector2(+ Infinity, + Infinity), max = new Vector2(- Infinity, - Infinity))
+    {
+        this.min = min;
+        this.max = max;
+    }
+
+    get area(): number
+    {
+        return (this.max.x - this.min.x) * (this.max.y - this.min.y);
+    }
+
+    set(min: Vector2, max: Vector2): Box2
+    {
+        this.min.copy(min);
+        this.max.copy(max);
+        return this;
+    }
+    setFromPoints(points: Vector2[]): Box2
+    {
+        this.makeEmpty();
+        for (let i = 0, il = points.length; i < il; i++)
+        {
+            this.expandByPoint(points[i]);
+        }
+        return this;
+    }
+    private static _setFromCenterAndSize_v1 = new Vector2();
+    setFromCenterAndSize(center: Vector2, size: Vector2): Box2
+    {
+        const v1 = Box2._setFromCenterAndSize_v1;
+        const halfSize = v1.copy(size).multiplyScalar(0.5);
+        this.min.copy(center).sub(halfSize);
+        this.max.copy(center).add(halfSize);
+        return this;
+    }
+    clone(): Box2
+    {
+        return new (this.constructor as any)().copy(this);
+    }
+    copy(box: Box2): Box2
+    {
+        this.min.copy(box.min);
+        this.max.copy(box.max);
+        return this;
+    }
+    makeEmpty(): Box2
+    {
+        this.min.x = this.min.y = + Infinity;
+        this.max.x = this.max.y = - Infinity;
+        return this;
+    }
+    isEmpty(): boolean
+    {
+        // this is a more robust check for empty than (volume <= 0) because volume can get positive with two negative axes
+        return (this.max.x < this.min.x) || (this.max.y < this.min.y);
+    }
+    getCenter(result: Vector2 = new Vector2()): Vector2
+    {
+        return this.isEmpty() ? result.set(0, 0) : result.addVectors(this.min, this.max).multiplyScalar(0.5);
+    }
+    getSize(result: Vector2 = new Vector2()): Vector2
+    {
+        return this.isEmpty() ? result.set(0, 0) : result.subVectors(this.max, this.min);
+    }
+    expandByPoint(point: Vector2): Box2
+    {
+        this.min.min(point);
+        this.max.max(point);
+        return this;
+    }
+    expandByVector(vector: Vector2): Box2
+    {
+        this.min.sub(vector);
+        this.max.add(vector);
+        return this;
+    }
+    expandByScalar(scalar: number): Box2
+    {
+        this.min.addScalar(- scalar);
+        this.max.addScalar(scalar);
+        return this;
+    }
+    containsPoint(point: Vector2): boolean
+    {
+        if (point.x < this.min.x || point.x > this.max.x ||
+            point.y < this.min.y || point.y > this.max.y)
+        {
+            return false;
+        }
+        return true;
+    }
+    containsBox(box: Box2): boolean
+    {
+        if ((this.min.x <= box.min.x) && (box.max.x <= this.max.x) &&
+            (this.min.y <= box.min.y) && (box.max.y <= this.max.y))
+        {
+            return true;
+        }
+        return false;
+    }
+    getParameter(point: Vector2, result: Vector2 = new Vector2()): Vector2
+    {
+        // This can potentially have a divide by zero if the box
+        // has a size dimension of 0.
+        return result.set(
+            (point.x - this.min.x) / (this.max.x - this.min.x),
+            (point.y - this.min.y) / (this.max.y - this.min.y)
+        );
+    }
+    intersectsBox(box: Box2): boolean
+    {
+        // using 6 splitting planes to rule out intersections.
+        if (box.max.x < this.min.x || box.min.x > this.max.x ||
+            box.max.y < this.min.y || box.min.y > this.max.y)
+        {
+            return false;
+        }
+        return true;
+    }
+    clampPoint(point: Vector2, result: Vector2 = new Vector2()): Vector2
+    {
+        return result.copy(point).clamp(this.min, this.max);
+    }
+    private static _distanceToPoint_v1 = new Vector2();
+    distanceToPoint(point: Vector2): number
+    {
+        const v1 = Box2._distanceToPoint_v1;
+        const clampedPoint = v1.copy(point).clamp(this.min, this.max);
+        return clampedPoint.sub(point).length();
+    }
+    intersect(box: Box2): Box2
+    {
+        this.min.max(box.min);
+        this.max.min(box.max);
+        return this;
+    }
+    union(box: Box2): Box2
+    {
+        this.min.min(box.min);
+        this.max.max(box.max);
+        return this;
+    }
+    translate(offset: Point): Box2
+    {
+        this.min.add(offset);
+        this.max.add(offset);
+        return this;
+    }
+    equals(box: Box2): boolean
+    {
+        return box.min.equals(this.min) && box.max.equals(this.max);
+    }
+};
--- a/src/Nest/Common/ClipperCpp.ts
+++ b/src/Nest/Common/ClipperCpp.ts
@@ -0,0 +1,21 @@
+import * as clipperLib from "js-angusj-clipper/web"; // nodejs style require
+
+export let clipperCpp: { lib?: clipperLib.ClipperLibWrapper; } = {};
+export function InitClipperCpp(): Promise<void>
+{
+    if (clipperCpp.lib) return;
+    if (!globalThis.document)
+        globalThis.document = {} as any;
+    return new Promise((res, rej) =>
+    {
+        clipperLib.loadNativeClipperLibInstanceAsync(
+            // let it autodetect which one to use, but also available WasmOnly and AsmJsOnly
+            clipperLib.NativeClipperLibRequestedFormat.WasmWithAsmJsFallback
+        ).then(c =>
+        {
+            clipperCpp.lib = c;
+            res();
+            console.log("载入成功!");
+        });
+    });
+}
--- a/src/Nest/Common/ConvexHull2D.ts
+++ b/src/Nest/Common/ConvexHull2D.ts
@@ -0,0 +1,8 @@
+import { Point } from "./Point";
+import convexHull from 'monotone-convex-hull-2d';
+export function ConvexHull2D(points: Point[]): Point[]
+{
+    let pts = points.map(p => [p.x, p.y]);
+    let indexs: number[] = convexHull(pts);
+    return indexs.map(i => points[i]);
+}
--- a/src/Nest/Common/Filer.ts
+++ b/src/Nest/Common/Filer.ts
@@ -0,0 +1,30 @@
+/**
+ * CAD文件数据
+ */
+export class NestFiler
+{
+    private readIndex: number = 0;
+    constructor(public _datas: any[] = []) { }
+
+    Clear()
+    {
+        this._datas.length = 0;
+        return this.Reset();
+    }
+    Reset()
+    {
+        this.readIndex = 0;
+        return this;
+    }
+
+    Write(data: any)
+    {
+        this._datas.push(data);
+        return this;
+    }
+
+    Read(): any
+    {
+        return this._datas[this.readIndex++];
+    }
+}
--- a/src/Nest/Common/Point.ts
+++ b/src/Nest/Common/Point.ts
@@ -0,0 +1,6 @@
+
+export interface Point
+{
+    x: number;
+    y: number;
+}
--- a/src/Nest/Common/Random.ts
+++ b/src/Nest/Common/Random.ts
@@ -0,0 +1,9 @@
+import { FixIndex } from "./Util";
+
+export function RandomIndex(count: number, exclude?: number): number
+{
+    let index = Math.floor(Math.random() * count);
+    if (index === count) index = 0;
+    if (index === exclude) index = FixIndex(index + 1, count);
+    return index;
+}
--- a/src/Nest/Common/Shuffle.ts
+++ b/src/Nest/Common/Shuffle.ts
@@ -0,0 +1,8 @@
+export function ShuffleArray<T = any>(array: T[])
+{
+    for (let i = array.length - 1; i > 0; i--)
+    {
+        const j = Math.floor(Math.random() * (i + 1));
+        [array[i], array[j]] = [array[j], array[i]];
+    }
+}
--- a/src/Nest/Common/Util.ts
+++ b/src/Nest/Common/Util.ts
@@ -0,0 +1,35 @@
+export function equaln(v1: number, v2: number, fuzz = 1e-5)
+{
+    return Math.abs(v1 - v2) <= fuzz;
+}
+
+export function FixIndex(index: number, arr: Array<any> | number)
+{
+    let count = (arr instanceof Array) ? arr.length : arr;
+    if (index < 0)
+        return count + index;
+    else if (index >= count)
+        return index - count;
+    else
+        return index;
+}
+
+/**
+ * @param compart 如果t2大于t1那么返回t2
+ * @returns 索引
+ */
+export function Max<T>(arr: T[], compart: (t1: T, t2: T) => boolean): number
+{
+    let best: T = arr[0];
+    let bestIndex = 0;
+    for (let i = 1; i < arr.length; i++)
+    {
+        let t1 = arr[i];
+        if (compart(best, t1))
+        {
+            best = t1;
+            bestIndex = i;
+        }
+    }
+    return bestIndex;
+}
--- a/src/Nest/Common/Vector2.ts
+++ b/src/Nest/Common/Vector2.ts
@@ -0,0 +1,287 @@
+import { Point } from "./Point";
+
+export class Vector2
+{
+    x: number;
+    y: number;
+    readonly isVector2: boolean = true;
+    constructor(x: number = 0, y: number = 0)
+    {
+        this.x = x;
+        this.y = y;
+    }
+    get width(): number { return this.x; }
+    set width(value: number) { this.x = value; }
+    get height(): number { return this.y; }
+    set height(value: number) { this.y = value; }
+    set(x: number, y: number): Vector2
+    {
+        this.x = x;
+        this.y = y;
+        return this;
+    }
+    setScalar(scalar: number): Vector2
+    {
+        this.x = scalar;
+        this.y = scalar;
+        return this;
+    }
+    setX(x: number): Vector2
+    {
+        this.x = x;
+        return this;
+    }
+    setY(y: number): Vector2
+    {
+        this.y = y;
+        return this;
+    }
+    setComponent(index: number, value: number): Vector2
+    {
+        switch (index)
+        {
+            case 0: this.x = value; break;
+            case 1: this.y = value; break;
+            default: throw new Error('index is out of range: ' + index);
+        }
+        return this;
+    }
+    getComponent(index: number): number
+    {
+        switch (index)
+        {
+            case 0: return this.x;
+            case 1: return this.y;
+            default: throw new Error('index is out of range: ' + index);
+        }
+    }
+    clone(): Vector2
+    {
+        return new (this.constructor as any)().copy(this);
+    }
+    copy(v: Vector2): Vector2
+    {
+        this.x = v.x;
+        this.y = v.y;
+        return this;
+    }
+    add(v: Point): Vector2
+    {
+        this.x += v.x;
+        this.y += v.y;
+        return this;
+    }
+    addScalar(s: number): Vector2
+    {
+        this.x += s;
+        this.y += s;
+        return this;
+    }
+    addVectors(a: Vector2, b: Vector2): Vector2
+    {
+        this.x = a.x + b.x;
+        this.y = a.y + b.y;
+        return this;
+    }
+    addScaledVector(v: Vector2, s: number): Vector2
+    {
+        this.x += v.x * s;
+        this.y += v.y * s;
+        return this;
+    }
+    sub(v: Vector2): Vector2
+    {
+        this.x -= v.x;
+        this.y -= v.y;
+        return this;
+    }
+    subScalar(s: number): Vector2
+    {
+        this.x -= s;
+        this.y -= s;
+        return this;
+    }
+    subVectors(a: Vector2, b: Vector2): Vector2
+    {
+        this.x = a.x - b.x;
+        this.y = a.y - b.y;
+        return this;
+    }
+    multiply(v: Vector2): Vector2
+    {
+        this.x *= v.x;
+        this.y *= v.y;
+        return this;
+    }
+    multiplyScalar(scalar: number): Vector2
+    {
+        if (isFinite(scalar))
+        {
+            this.x *= scalar;
+            this.y *= scalar;
+        } else
+        {
+            this.x = 0;
+            this.y = 0;
+        }
+        return this;
+    }
+    divide(v: Vector2): Vector2
+    {
+        this.x /= v.x;
+        this.y /= v.y;
+        return this;
+    }
+    divideScalar(scalar: number): Vector2
+    {
+        return this.multiplyScalar(1 / scalar);
+    }
+    min(v: Vector2): Vector2
+    {
+        this.x = Math.min(this.x, v.x);
+        this.y = Math.min(this.y, v.y);
+        return this;
+    }
+    max(v: Vector2): Vector2
+    {
+        this.x = Math.max(this.x, v.x);
+        this.y = Math.max(this.y, v.y);
+        return this;
+    }
+    clamp(min: Vector2, max: Vector2): Vector2
+    {
+        // This function assumes min < max, if this assumption isn't true it will not operate correctly
+        this.x = Math.max(min.x, Math.min(max.x, this.x));
+        this.y = Math.max(min.y, Math.min(max.y, this.y));
+        return this;
+    }
+    private static clampScalar_min = new Vector2();
+    private static clampScalar_max = new Vector2();
+    clampScalar(minVal: number, maxVal: number): Vector2
+    {
+        const min: Vector2 = Vector2.clampScalar_min.set(minVal, minVal);
+        const max: Vector2 = Vector2.clampScalar_max.set(maxVal, maxVal);
+        return this.clamp(min, max);
+    }
+    clampLength(min: number, max: number): Vector2
+    {
+        const length: number = this.length();
+        return this.multiplyScalar(Math.max(min, Math.min(max, length)) / length);
+    }
+    floor(): Vector2
+    {
+        this.x = Math.floor(this.x);
+        this.y = Math.floor(this.y);
+        return this;
+    }
+    ceil(): Vector2
+    {
+        this.x = Math.ceil(this.x);
+        this.y = Math.ceil(this.y);
+        return this;
+    }
+    round(): Vector2
+    {
+        this.x = Math.round(this.x);
+        this.y = Math.round(this.y);
+        return this;
+    }
+    roundToZero(): Vector2
+    {
+        this.x = (this.x < 0) ? Math.ceil(this.x) : Math.floor(this.x);
+        this.y = (this.y < 0) ? Math.ceil(this.y) : Math.floor(this.y);
+        return this;
+    }
+    negate(): Vector2
+    {
+        this.x = - this.x;
+        this.y = - this.y;
+        return this;
+    }
+    dot(v: Vector2): number
+    {
+        return this.x * v.x + this.y * v.y;
+    }
+    lengthSq(): number
+    {
+        return this.x * this.x + this.y * this.y;
+    }
+    length(): number
+    {
+        return Math.sqrt(this.x * this.x + this.y * this.y);
+    }
+    lengthManhattan(): number
+    {
+        return Math.abs(this.x) + Math.abs(this.y);
+    }
+    normalize(): Vector2
+    {
+        return this.divideScalar(this.length());
+    }
+    angle(): number
+    {
+        // computes the angle in radians with respect to the positive x-axis
+        let angle: number = Math.atan2(this.y, this.x);
+        if (angle < 0) angle += 2 * Math.PI;
+        return angle;
+    }
+    distanceTo(v: Vector2): number
+    {
+        return Math.sqrt(this.distanceToSquared(v));
+    }
+    distanceToSquared(v: Vector2): number
+    {
+        const dx: number = this.x - v.x, dy: number = this.y - v.y;
+        return dx * dx + dy * dy;
+    }
+    distanceToManhattan(v: Vector2): number
+    {
+        return Math.abs(this.x - v.x) + Math.abs(this.y - v.y);
+    }
+    setLength(length: number): Vector2
+    {
+        return this.multiplyScalar(length / this.length());
+    }
+    lerp(v: Vector2, alpha: number): Vector2
+    {
+        this.x += (v.x - this.x) * alpha;
+        this.y += (v.y - this.y) * alpha;
+        return this;
+    }
+    lerpVectors(v1: Vector2, v2: Vector2, alpha: number): Vector2
+    {
+        return this.subVectors(v2, v1).multiplyScalar(alpha).add(v1);
+    }
+    equals(v: Vector2): boolean
+    {
+        return ((v.x === this.x) && (v.y === this.y));
+    }
+    fromArray(array: Float32Array | number[], offset: number = 0): Vector2
+    {
+        this.x = array[offset];
+        this.y = array[offset + 1];
+        return this;
+    }
+    toArray(array: Float32Array | number[] = [], offset: number = 0): Float32Array | number[]
+    {
+        array[offset] = this.x;
+        array[offset + 1] = this.y;
+        return array;
+    }
+    fromAttribute(attribute: any, index: number, offset: number = 0): Vector2
+    {
+        index = index * attribute.itemSize + offset;
+        this.x = attribute.array[index];
+        this.y = attribute.array[index + 1];
+        return this;
+    }
+    rotateAround(center: Vector2, angle: number): Vector2
+    {
+        const c: number = Math.cos(angle), s: number = Math.sin(angle);
+        const x: number = this.x - center.x;
+        const y: number = this.y - center.y;
+        this.x = x * c - y * s + center.x;
+        this.y = x * s + y * c + center.y;
+        return this;
+    }
+}
--- a/src/Nest/Core/Container.ts
+++ b/src/Nest/Core/Container.ts
@@ -0,0 +1,373 @@
+import { ClipType, PolyFillType, Paths } from "js-angusj-clipper/web";
+import { SubjectInput } from "js-angusj-clipper/web/clipFunctions";
+import { Box2 } from "../Common/Box2";
+import { clipperCpp } from "../Common/ClipperCpp";
+import { ConvexHull2D } from "../Common/ConvexHull2D";
+import { NestFiler } from "../Common/Filer";
+import { NestCache } from "./NestCache";
+import { Part } from "./Part";
+import { Area, Path, TranslatePath } from "./Path";
+import { PlaceType } from "./PlaceType";
+import { Point } from "../Common/Point";
+import { equaln } from "../Common/Util";
+import { Vector2 } from "../Common/Vector2";
+
+/**
+ * 当零件尝试放置后容器的状态,用于尝试放置,并且尝试贪心
+ */
+interface PartPlacedContainerState
+{
+    p: Point;
+    area?: number;
+    hull?: Point[];
+    box?: Box2;
+}
+
+/**
+ * 排料零件的容器,用来放置零件
+ * 它是一块大板
+ * 也可以是一个网洞
+ * 也可以是余料
+ */
+export class Container
+{
+    ParentId: number = -1;//父亲id,-1表示默认的bin,-2开始表示余料,大于等于0表示板件
+    ChildrenIndex: number = 0;//网洞的索引位置
+    ParentM: Point;
+
+    Placed: Part[] = [];
+    PlaceType: PlaceType = PlaceType.Box;
+
+    //放置状态
+    PlacedArea = 0;
+    PlacedBox: Box2;
+    PlacedHull: Point[];
+
+    StatusKey: string;
+    constructor(protected BinPath?: Path)
+    {
+        if (BinPath)
+            this.StatusKey = this.BinPath.Id.toString() + "," + this.PlaceType;
+    }
+
+    get UseRatio(): number
+    {
+        return this.PlacedBox.area / this.BinPath.Area;
+    }
+
+    private _NotPuts: Set<number>[] = [];//已经无法放置的pathId
+
+    private PrePut(part: Part): PartPlacedContainerState
+    {
+        //无法容纳
+        if (this.BinPath.Area - this.PlacedArea < part.State.Contour.Area)
+            return;
+
+        let cacheKey = this.StatusKey + "," + part.State.Contour.Id;
+        let cacheP = NestCache.PositionCache[cacheKey];
+        //读取缓存位置
+        if (cacheP)
+        {
+            NestCache.count1++;
+            return this.Calc(part, cacheP);
+        }
+
+        let binNfp = this.BinPath.GetInsideNFP(part.State.Contour);
+        if (!binNfp || binNfp.length === 0) return;
+
+        //首个
+        if (this.Placed.length === 0)
+        {
+            let p = this.GetFarLeftP(binNfp);
+            NestCache.PositionCache[cacheKey] = p;
+            return this.Calc(part, p);
+        }
+
+        //快速退出
+        let noSet = NestCache.NoPutCache[this.StatusKey];
+        if (noSet) this._NotPuts.push(noSet);
+        for (let set of this._NotPuts)
+        {
+            if (set.has(part.State.Contour.Id))
+            {
+                NestCache.count2++;
+                return;
+            }
+        }
+
+        let finalNfp = this.GetNFPs(part, binNfp);
+        if (!finalNfp || finalNfp.length === 0)
+        {
+            if (noSet) noSet.add(part.State.Contour.Id);
+            else
+            {
+                noSet = new Set([part.State.Contour.Id]);
+                NestCache.NoPutCache[this.StatusKey] = noSet;
+            }
+            return;
+        }
+
+        //选择合适的放置点
+        let minArea: number = Infinity;
+        let translate: Point;
+        let bestBox: Box2;
+        let bestHull: Point[];
+
+        let tempVec = new Vector2;
+        for (let nfp of finalNfp)
+        {
+            for (let p of nfp)
+            {
+                tempVec.set(p.x * 1e-4, p.y * 1e-4);
+                switch (this.PlaceType)
+                {
+                    case PlaceType.Box:
+                        {
+                            let box2 = part.State.Contour.BoundingBox.clone();
+                            box2.translate(tempVec);
+                            let rectBox = this.PlacedBox.clone().union(box2);
+                            let size = rectBox.getSize();
+                            let area = size.x * size.y;
+                            if (area < minArea ||
+                                ((equaln(area, minArea, 1))
+                                    && (p.x < translate.x || (p.x === translate.x && p.y < translate.y))))
+                            // && (p.y < translate.y || (p.y === translate.y && p.x < translate.x))))
+                            // && (this.BinPath.Size.x > this.BinPath.Size.y ? p.x < translate.x : p.y < translate.y)))
+                            {
+                                translate = p;
+                                minArea = area;
+                                bestBox = rectBox;
+                            }
+                            break;
+                        }
+                    case PlaceType.Hull:
+                        {
+                            let pts = TranslatePath(part.State.Contour.Points, tempVec);
+                            let nhull = ConvexHull2D([...pts, ...this.PlacedHull]);
+                            let area = Math.abs(Area(nhull));
+                            if (area < minArea ||
+                                ((equaln(area, minArea, 1))
+                                    && (p.x < translate.x || (p.x === translate.x && p.y < translate.y))))
+                            // && (p.y < translate.y || (p.y === translate.y && p.x < translate.x))))
+                            // && (this.BinPath.Size.x > this.BinPath.Size.y ? p.x < translate.x : p.y < translate.y)))
+                            {
+                                translate = p;
+                                minArea = area;
+                                bestHull = nhull;
+                            }
+                            break;
+                        }
+                    case PlaceType.Gravity:
+                        {
+                            if (!translate || p.x < translate.x || (p.x === translate.x && p.y < translate.y))
+                                translate = p;
+                        }
+                    default:
+                        break;
+                }
+            }
+        }
+
+        if (translate)
+        {
+            NestCache.PositionCache[cacheKey] = translate;
+            if (!bestBox)
+                bestBox = this.PlacedBox.clone().union(part.State.Contour.BoundingBox.clone().translate({ x: translate.x * 1e-4, y: translate.y * 1e-4 }));
+            return { p: translate, area: minArea, box: bestBox, hull: bestHull };
+        }
+    }
+
+    private Calc(part: Part, p: Point): PartPlacedContainerState
+    {
+        let d: PartPlacedContainerState = { p };
+
+        let m: Point = { x: p.x * 1e-4, y: p.y * 1e-4 };
+
+        if (this.PlacedBox)
+            d.box = this.PlacedBox.clone().union(part.State.Contour.BoundingBox.clone().translate(m));
+        else
+            d.box = part.State.Contour.BoundingBox.clone().translate(m);
+
+        //凸包
+        if (this.PlaceType === PlaceType.Hull)
+        {
+            if (!this.PlacedHull)
+            {
+                d.hull = TranslatePath(part.State.Contour.Points, m);
+                d.area = part.State.Contour.Area;
+            }
+            else
+            {
+                d.hull = ConvexHull2D([...this.PlacedHull, ...TranslatePath(part.State.Contour.Points, m)]);
+                d.area = Area(d.hull);
+            }
+
+            d.area = Math.abs(d.area);
+        }
+        else
+        {
+            d.area = d.box.area;
+        }
+        return d;
+    }
+
+    PutPart(p: Part, greedy = false): boolean
+    {
+        let bestD: PartPlacedContainerState;
+        if (greedy)
+        {
+            let bestI: number;
+            for (let i = 0; i < p.RotatedStates.length; i++)
+            {
+                p.StateIndex = i;
+                let d = this.PrePut(p);
+                if (d && (!bestD || bestD.area > d.area ||
+                    (
+                        this.PlaceType === PlaceType.Hull
+                        && equaln(bestD.area, d.area, 0.1)
+                        && d.box.area < bestD.box.area
+                    )
+                ))
+                {
+                    bestD = d;
+                    bestI = i;
+                }
+            }
+            if (bestD)
+                p.StateIndex = bestI;
+        }
+        else
+            bestD = this.PrePut(p);
+
+        if (bestD)
+        {
+            p.PlacePosition = bestD.p;
+            this.PlacedBox = bestD.box ?? this.PlacedBox;
+            this.PlacedHull = bestD.hull;
+            this.AppendPart(p, false);
+            return true;
+        }
+        return false;
+    }
+
+    protected GetNFPs(part: Part, binNfp: Point[][]): Paths
+    {
+        //合并(零件和所有已经放置零件的NFP)
+        let nfps: SubjectInput[] = [];
+        for (let placedPart of this.Placed)
+        {
+            let nfp = placedPart.State.Contour.GetOutsideNFP(part.State.Contour);
+            if (!nfp) return;
+            for (let n of nfp)
+            {
+                let nnfp = TranslatePath(n, placedPart.PlacePosition);
+                nfps.push({ data: nnfp, closed: true });
+            }
+        }
+        //合并nfp
+        let combinedNfp = clipperCpp.lib.clipToPaths({
+            subjectInputs: nfps,
+            clipType: ClipType.Union,
+            subjectFillType: PolyFillType.NonZero
+        });
+
+        combinedNfp = clipperCpp.lib.cleanPolygons(combinedNfp, 100);
+
+        if (combinedNfp.length === 0) return;
+
+        //减去nfp
+        let finalNfp = clipperCpp.lib.clipToPaths({
+            subjectInputs: [{ data: binNfp, closed: true }],
+            clipInputs: [{ data: combinedNfp }],
+            clipType: ClipType.Difference,
+            subjectFillType: PolyFillType.NonZero
+        });
+        finalNfp = clipperCpp.lib.cleanPolygons(finalNfp, 100);
+        return finalNfp;
+    }
+
+    /**
+     * 将Part添加的Placed列表
+     * @param part 零件,已经计算了放置状态
+     * @param [calc=true] 是否计算当前的容器状态?
+     */
+    private AppendPart(part: Part, calc = true): void
+    {
+        this.StatusKey += "," + part.State.Contour.Id;
+        this.Placed.push(part);
+        this.PlacedArea += part.State.Contour.Area;
+        let m = { x: part.PlacePosition.x * 1e-4, y: part.PlacePosition.y * 1e-4 };
+        if (calc)
+        {
+            //凸包
+            if (this.PlaceType === PlaceType.Hull)
+            {
+                if (!this.PlacedHull)
+                    this.PlacedHull = TranslatePath(part.State.Contour.Points, m);
+                else
+                    this.PlacedHull = ConvexHull2D([...this.PlacedHull, ...TranslatePath(part.State.Contour.Points, m)]);
+            }
+        }
+        if (calc || this.PlaceType !== PlaceType.Box)
+        {
+            if (this.PlacedBox)
+                this.PlacedBox.union(part.State.Contour.BoundingBox.clone().translate(m));
+            else
+                this.PlacedBox = part.State.Contour.BoundingBox.clone().translate(m);
+        }
+    }
+
+    /**
+     * 得到最左边的点
+     */
+    protected GetFarLeftP(nfp: Point[][]): Point
+    {
+        let leftP: Point = { x: Infinity, y: Infinity };
+        for (let path of nfp)
+        {
+            for (let p of path)
+            {
+                if (p.x < leftP.x)
+                    leftP = p;
+                else if (p.x === leftP.x && p.y < leftP.y)
+                    leftP = p;
+            }
+        }
+        return leftP;
+    }
+
+    //#region -------------------------File-------------------------
+    //对象从文件中读取数据,初始化自身
+    ReadFile(file: NestFiler, parts: Part[])
+    {
+        this.ParentId = file.Read();
+        this.ChildrenIndex = file.Read();
+        this.ParentM = file.Read();
+        let count = file.Read() as number;
+        this.Placed = [];
+        for (let i = 0; i < count; i++)
+        {
+            let index = file.Read() as number;
+            let part = parts[index];
+            part.StateIndex = file.Read();
+            part.PlacePosition = file.Read();
+            this.Placed.push(part);
+        }
+        return this;
+    }
+    //对象将自身数据写入到文件.
+    WriteFile(file: NestFiler)
+    {
+        file.Write(this.ParentId);
+        file.Write(this.ChildrenIndex);
+        file.Write(this.ParentM);
+        file.Write(this.Placed.length);
+        for (let p of this.Placed)
+        {
+            file.Write(p.Id);
+            file.Write(p.StateIndex);
+            file.Write(p.PlacePosition);
+        }
+    }
+    //#endregion
+}
--- a/src/Nest/Core/DefaultBin.ts
+++ b/src/Nest/Core/DefaultBin.ts
@@ -0,0 +1,4 @@
+import { Path } from "./Path";
+let width = 1221;
+let height = 2441;
+export let DefaultBin = new Path([{ x: 0, y: 0 }, { x: width, y: 0 }, { x: width, y: height }, { x: 0, y: height }]);
--- a/src/Nest/Core/Individual.ts
+++ b/src/Nest/Core/Individual.ts
@@ -0,0 +1,190 @@
+import { arrayLast } from "../../Common/ArrayExt";
+import { Container } from "./Container";
+import { NestFiler } from "../Common/Filer";
+import { Part } from "./Part";
+import { Path } from "./Path";
+import { PlaceType } from "./PlaceType";
+import { RandomIndex } from "../Common/Random";
+
+/**
+ * 个体(表示某一次优化的结果,或者还没开始优化的状态)
+ * 个体是由一堆零件组成的，零件可以有不同的状态。
+ *
+ * 个体单独变异
+ *  可以是某个零件的旋转状态发生改变
+ *  可以是零件的顺序发生改变
+ *
+ * 个体交配(感觉暂时不需要)
+ *  个体和其他个体进行基因交换
+ */
+export class Individual
+{
+    //强壮程度 越低越好
+    Fitness: number;
+    constructor(public Parts?: Part[], public mutationRate = 0.5) { }
+
+    Clone()
+    {
+        let p = new Individual(this.Parts.map(p => p.Clone(), this.mutationRate));
+        p.Mutate();
+        return p;
+    }
+
+    /**
+    * 突变
+    */
+    Mutate()
+    {
+        if (this.mutationRate > 0.5)
+            for (let i = 0; i < this.Parts.length; i++)
+            {
+                let rand = Math.random();
+                if (rand < this.mutationRate * 0.5)
+                {
+                    //和下一个调换顺序
+                    let j = i + 1;
+                    if (j < this.Parts.length)
+                        [this.Parts[i], this.Parts[j]] = [this.Parts[j], this.Parts[i]];
+                }
+                if (rand < this.mutationRate)
+                    this.Parts[i].Mutate();
+            }
+        else
+        {
+            //洗牌
+            let rand = Math.random();
+            if (rand < 0.5)
+            {
+                let index = RandomIndex(this.Parts.length - 2);
+                let count = Math.ceil(RandomIndex(this.Parts.length - 2 - index) * this.mutationRate * 2) || 1;
+                let parts = this.Parts.splice(index, count);
+                this.Parts.push(...parts);
+                this.Parts[index].Mutate();
+            }
+            else
+                for (let i = 0; i < this.Parts.length; i++)
+                {
+                    let rand = Math.random();
+                    if (rand < this.mutationRate)
+                    {
+                        this.Parts[i].Mutate();
+                        i += 5;
+                    }
+                }
+        }
+
+        if (this.mutationRate > 0.2)
+            this.mutationRate -= 0.004;
+        return this;
+    }
+
+    Containers: Container[];
+    HoleContainers: Container[];
+    /**
+     * 评估健康程度
+     */
+    Evaluate(bin: Path, bestCount: number, greedy = false, type?: PlaceType)
+    {
+        let parts = this.Parts;
+        this.Containers = [];
+        this.HoleContainers = [];
+        for (let part of parts)
+        {
+            for (let i = 0; i < part.Holes.length; i++)
+            {
+                let hole = part.Holes[i];
+                let container = new Container(hole.Contour);
+                container.ParentId = part.Id;
+                container.ChildrenIndex = i;
+                container.ParentM = hole.OrigionMinPoint;
+                this.HoleContainers.push(container);
+            }
+        }
+
+        //网洞优先
+        parts = parts.filter(p =>
+        {
+            for (let hole of this.HoleContainers)
+            {
+                if (hole.PutPart(p))
+                    return false;
+            }
+            return true;
+        });
+
+        while (parts.length > 0)
+        {
+            if (this.Containers.length > bestCount)
+            {
+                this.Fitness = Math.ceil(bestCount) + 1;
+                return;
+            }
+            let container = new Container(bin);
+            container.ParentId = -1;
+            if (greedy)
+                container.PlaceType = type;
+            else
+                container.PlaceType = RandomIndex(2);
+            if (this.mutationRate > 0.5)
+            {
+                let area = 0;
+                let maxP: Part;
+                for (let i = 0; i < parts.length; i++)
+                {
+                    let p = parts[i];
+                    if (p.State.Contour.Area > area)
+                    {
+                        maxP = parts[i];
+                        area = p.State.Contour.Area;
+                    }
+                }
+                if (container.PutPart(maxP, greedy))
+                    parts = parts.filter(p => p !== maxP);
+            }
+            parts = parts.filter(p =>
+            {
+                return container.PutPart(p, greedy) !== true;
+            });
+            if (!greedy)
+            {
+                parts = parts.filter(p =>
+                {
+                    return container.PutPart(p, true) !== true;
+                });
+            }
+            this.Containers.push(container);
+        }
+        this.Fitness = this.Containers.length - 1 + arrayLast(this.Containers).UseRatio;
+    }
+
+    //#region -------------------------File-------------------------
+
+    //对象从文件中读取数据,初始化自身
+    ReadFile(file: NestFiler)
+    {
+        this.Fitness = file.Read();
+        let count = file.Read() as number;
+        this.Containers = [];
+        for (let i = 0; i < count; i++)
+            this.Containers.push(new Container().ReadFile(file, this.Parts));
+
+        count = file.Read();
+        this.HoleContainers = [];
+        for (let i = 0; i < count; i++)
+            this.HoleContainers.push(new Container().ReadFile(file, this.Parts));
+    }
+
+    //对象将自身数据写入到文件.
+    WriteFile(f: NestFiler)
+    {
+        f.Write(this.Fitness);
+        f.Write(this.Containers.length);
+        for (let c of this.Containers)
+            c.WriteFile(f);
+
+        f.Write(this.HoleContainers.length);
+        for (let c of this.HoleContainers)
+            c.WriteFile(f);
+    }
+    //#endregion
+}
--- a/src/Nest/Core/NestCache.ts
+++ b/src/Nest/Core/NestCache.ts
@@ -0,0 +1,37 @@
+import { Path } from "./Path";
+import { Point } from "../Common/Point";
+
+export class NestCache
+{
+    static count1 = 0;
+    static count2 = 0;//noset
+
+    static PositionCache: { [key: string]: Point; } = {};
+    static NoPutCache: { [key: string]: Set<number>; } = {};
+    private static CacheRect = new Map<string, Path>();
+
+    /**
+     * 用于创建原点在0点的矩形路径
+     */
+    static CreatePath(x: number, y: number, knifRadius = 3.5): Path
+    {
+        let minX = -knifRadius;
+        let maxX = x + knifRadius;
+        let minY = -knifRadius;
+        let maxY = y + knifRadius;
+        return new Path([
+            { x: minX, y: minY },
+            { x: maxX, y: minY },
+            { x: maxX, y: maxY },
+            { x: minX, y: maxY },
+        ]);
+    }
+
+    static Clear()
+    {
+        this.count1 = 0;
+        this.count2 = 0;
+        this.CacheRect.clear();
+        this.PositionCache = {};
+    }
+}
--- a/src/Nest/Core/NestDatabase.ts
+++ b/src/Nest/Core/NestDatabase.ts
@@ -0,0 +1,54 @@
+import { Part } from "./Part";
+import { Path } from "./Path";
+import { NestFiler } from "../Common/Filer";
+import { PathGeneratorSingle } from "./PathGenerator";
+
+/**
+ * 排料数据库,用这个类来序列化需要排料的数据
+ * 用于在Work间传输
+ */
+export class NestDatabase
+{
+    Paths: Path[]; //所有的Path都在这里
+    Bin: Path;     //默认的容器
+    Parts: Part[]; //所有的零件
+
+    //#region -------------------------File-------------------------
+    //对象从文件中读取数据,初始化自身
+    ReadFile(file: NestFiler)
+    {
+        file.Read();
+        let count = file.Read() as number;
+        this.Paths = [];
+        for (let i = 0; i < count; i++)
+        {
+            let path = new Path();
+            path.ReadFile(file);
+            this.Paths.push(path);
+        }
+        this.Bin = this.Paths[file.Read()];
+        PathGeneratorSingle.paths = this.Paths;
+        count = file.Read();
+        this.Parts = [];
+        for (let i = 0; i < count; i++)
+        {
+            let part = new Part();
+            part.ReadFile(file);
+            this.Parts.push(part);
+        }
+    }
+    //对象将自身数据写入到文件.
+    WriteFile(file: NestFiler)
+    {
+        file.Write(1);
+        file.Write(this.Paths.length);
+        for (let path of this.Paths)
+            path.WriteFile(file);
+
+        file.Write(this.Bin.Id);
+        file.Write(this.Parts.length);
+        for (let part of this.Parts)
+            part.WriteFile(file);
+    }
+    //#endregion
+}
--- a/src/Nest/Core/OptimizeMachine.ts
+++ b/src/Nest/Core/OptimizeMachine.ts
@@ -0,0 +1,160 @@
+import { arrayRemoveIf } from "../../Common/ArrayExt";
+import { Sleep } from "../../Common/Sleep";
+import { clipperCpp } from "../Common/ClipperCpp";
+import { Individual } from "./Individual";
+import { NestCache } from "./NestCache";
+import { Part } from "./Part";
+import { Path } from "./Path";
+
+/**
+ * 优化器
+ * 配置优化器
+ * 放入零件
+ * 按下启动
+ * 按下暂停
+ * 清理机台
+ */
+export class OptimizeMachine
+{
+    //配置
+    Config: {
+        PopulationCount: number;//种群个数
+    };
+    //容器板
+    Bin: Path;
+    //机台上的零件
+    Parts: Part[];
+    private _IsSuspend = false;
+
+    protected _Individuals: Individual[];
+
+    constructor()
+    {
+        this.Config = { PopulationCount: 50 };
+    }
+
+    //放入零件
+    PutParts(parts: Part[])
+    {
+        if (globalThis.document) parts = parts.slice();
+        arrayRemoveIf(parts, p => p.RotatedStates.length === 0);
+        this.Parts = parts;
+    }
+
+    callBack: (i: Individual) => Promise<void>;
+
+    //启动
+    async Start()
+    {
+        if (this.Parts.length === 0) return;
+        console.log(this.Parts.length);
+        this._IsSuspend = false;
+        NestCache.Clear();
+        this.Parts.sort((p1, p2) => p2.State.Contour.Area - p1.State.Contour.Area);
+        this._Individuals = [new Individual(this.Parts, 0.8)];
+        for (let i = 1; i < this.Config.PopulationCount; i++)
+        {
+            let parts = this.Parts.map(p => p.Clone());
+            if (i < 3)
+            {
+                for (let i = parts.length - 1; i > 0; i--)
+                {
+                    const j = Math.floor(Math.random() * (i + 1));
+                    [parts[i], parts[j]] = [parts[j], parts[i]];
+                    parts[i].Mutate();
+                }
+            }
+            this._Individuals.push(new Individual(parts, 0.8));
+        }
+        //2.执行
+        await this.Run();
+    }
+
+    calcCount = 0;
+    best = Infinity;
+    bestP: Individual;
+    bestCount = 0;
+    private async Run()
+    {
+        console.time("1");
+        if (this.Parts.length === 0) return;
+        //开始自然选择
+        while (!this._IsSuspend) //实验停止信号
+        {
+            let goBack = this.calcCount - this.bestCount > 8000;
+            //1.适应环境(放置零件)
+            for (let i = 0; i < this._Individuals.length; i++)
+            {
+                if (globalThis.document || !clipperCpp.lib)
+                    await Sleep(0);
+                let p = this._Individuals[i];
+                if (this.calcCount < 1000 || this.calcCount % 1000 === 0)
+                    p.Evaluate(this.Bin, this.best, true, i % 2);
+                else
+                    p.Evaluate(this.Bin, this.best);
+
+                if (!this.bestP || p.Fitness < this.bestP.Fitness)
+                {
+                    this.bestP = p;
+                    this.best = p.Fitness;
+                    await this.callBack(p);
+                }
+                if (goBack)
+                    p.mutationRate = 0.5;
+            }
+
+            this.calcCount += this._Individuals.length;
+            if (this.calcCount % 100 === 0)
+            {
+                console.timeLog("1", this.bestP.Fitness, this.calcCount, NestCache.count1, NestCache.count2);
+                await Sleep(0);
+            }
+
+            this._Individuals.sort((i1, i2) => i1.Fitness - i2.Fitness);
+            let bestP = this._Individuals[0];
+            // //回调最好的
+            // if (bestP.Fitness < this.best)
+            // {
+            //     this.best = bestP.Fitness;
+            //     this.bestP = bestP;
+            //     // console.timeLog("1", this.best, this.calcCount, NestCache.count1, NestCache.count2);
+            //     if (this.callBack)
+            //         await this.callBack(bestP);
+            // }
+
+            //自然选择
+            this._Individuals.splice(-10);//杀死它
+            for (let i = 0; i < 4; i++)
+                this._Individuals.push(bestP.Clone());
+            this._Individuals.push(this.bestP.Clone());
+            for (let i = 0; i < 3; i++)
+                this._Individuals.push(this._Individuals[1].Clone());
+            for (let i = 0; i < 2; i++)
+                this._Individuals.push(this._Individuals[2].Clone());
+            //全部突变
+            for (let p of this._Individuals)
+            {
+                if (p.Fitness !== undefined)
+                    p.Mutate();
+            }
+        }
+    }
+    //暂停
+    Suspend()
+    {
+        console.timeEnd("1");
+        console.log(this.best, this.calcCount, NestCache.count1);
+        this._IsSuspend = true;
+        console.log("暂停");
+    }
+    //继续
+    Continue()
+    {
+        this._IsSuspend = false;
+        this.Run();
+    }
+    //清理机台
+    Clear()
+    {
+    }
+}
--- a/src/Nest/Core/OptimizeWorker.worker.ts
+++ b/src/Nest/Core/OptimizeWorker.worker.ts
@@ -0,0 +1,27 @@
+const ctx: Worker = self as any;
+import { InitClipperCpp } from "../Common/ClipperCpp";
+import { NestFiler } from "../Common/Filer";
+import { NestDatabase } from "./NestDatabase";
+import { OptimizeMachine } from "./OptimizeMachine";
+
+ctx.addEventListener("message", async (event) =>
+{
+    await InitClipperCpp();
+    let f = new NestFiler(event.data);
+    let db = new NestDatabase;
+    db.ReadFile(f);
+
+    let m = new OptimizeMachine;
+    m.Bin = db.Bin;
+    m.PutParts(db.Parts);
+
+    m.callBack = async (inv) =>
+    {
+        let f = new NestFiler();
+        inv.WriteFile(f);
+        ctx.postMessage(f._datas);
+    };
+    await m.Start();
+});
+
+export default {} as typeof Worker & (new () => Worker);
--- a/src/Nest/Core/Part.ts
+++ b/src/Nest/Core/Part.ts
@@ -0,0 +1,178 @@
+import { NestFiler } from "../Common/Filer";
+import { PartState } from "./PartState";
+import { Path } from "./Path";
+import { PathGeneratorSingle } from "./PathGenerator";
+import { Point } from "../Common/Point";
+import { RandomIndex } from "../Common/Random";
+import { Vector2 } from "../Common/Vector2";
+
+/**
+ * 零件类
+ *  零件类可以绑定数据，也存在位置和旋转状态的信息
+ *
+ * 初始化零件：
+ *  传入零件的轮廓，刀半径，包围容器（或者为空？）
+ *  初始化用于放置的轮廓。将轮廓首点移动到0点，记录移动的点P。
+ *
+ * 零件放置位置：
+ *  表示零件轮廓首点的位置。
+ *
+ * 零件的旋转：
+ *  表示零件轮廓按照首点（0）旋转。
+ *
+ * 还原零件的放置状态：
+ *  同样将零件移动到0点
+ *  同样将零件旋转
+ *  同样将零件移动到指定的位置
+ *  零件可能处于容器中，变换到容器坐标系
+ *
+ */
+export class Part<T = any, Matrix = any>
+{
+    Id: number;//用于确定Part的唯一性,并且有助于在其他Work中还原
+
+    //下面数据只用于还原零件的显示状态,在优化中无作用
+    UserData: T; //应该也是可序列化的实体
+    PlaceCS: Matrix;//放置矩阵 Matrix4
+    Parent: Part;
+
+    Holes: PartState[] = [];
+    //零件的不同旋转状态,这个数组会在所有的状态间共享,以便快速切换状态
+    RotatedStates: PartState[] = [];
+    PlacePosition: Point; //放置位置(相对于容器的位置)
+    StateIndex = 0;       //放置状态
+
+    get State(): PartState  //零件当前的状态
+    {
+        return this.RotatedStates[this.StateIndex];
+    }
+
+    //初始化零件的各个状态,按360度旋转个数
+    Init(path: Path, bin: Path, rotateCount = 4): this
+    {
+        let rotations: number[] = [];
+        let a = 2 * Math.PI / rotateCount;
+        for (let i = 0; i < rotateCount; i++)
+        {
+            rotations.push(a * i);
+        }
+        this.Init2(path, bin, rotations);
+        return this;
+    }
+
+    //初始化零件的各个状态,按旋转角度表
+    Init2(path: Path, bin: Path, rotations: number[] = []): this
+    {
+        let pathP = path.OrigionMinPoint;
+        let path_0 = PathGeneratorSingle.Allocate(path);
+        let pathSet = new Set<Path>();
+
+        //初始化零件的状态集合
+        for (let pa of rotations)
+        {
+            let partState = new PartState();
+            partState.Rotation = pa;
+            if (pa === 0)
+            {
+                partState.Contour = path_0;
+                partState.OrigionMinPoint = pathP;
+            }
+            else
+            {
+                let path_r = new Path(path.Points, pa);
+                partState.Contour = PathGeneratorSingle.Allocate(path_r);
+                partState.Contour.Area = path_0.Area;
+                //避免重复的Path进入State
+                if (pathSet.has(partState.Contour)) continue;
+                let p0 = path_r.OrigionMinPoint;
+                let c = Math.cos(-pa);
+                let s = Math.sin(-pa);
+                let x1 = p0.x * c - p0.y * s;
+                let y1 = p0.x * s + p0.y * c;
+                partState.OrigionMinPoint = new Vector2(pathP.x + x1, pathP.y + y1);
+                if (partState.Contour.Origion === undefined)
+                {
+                    partState.Contour.Origion = path_0;
+                    partState.Contour.OrigionMinPoint = p0;
+                }
+            }
+            //记录已有Path
+            pathSet.add(partState.Contour);
+            //必须能放置
+            if (bin.GetInsideNFP(partState.Contour))
+            {
+                this.RotatedStates.push(partState);
+                PathGeneratorSingle.RegisterId(partState.Contour);
+            }
+        }
+
+        //为了复用NFP,不管第0个Path是否可用,都注册它.
+        if (this.RotatedStates.length > 4)
+            PathGeneratorSingle.RegisterId(path_0);
+        return this;
+    }
+
+    AppendHole(path: Path)
+    {
+        let hole = new PartState();
+        hole.Contour = PathGeneratorSingle.Allocate(path);
+        PathGeneratorSingle.RegisterId(hole.Contour);
+        hole.OrigionMinPoint = path.OrigionMinPoint;
+        hole.Rotation = 0;
+        this.Holes.push(hole);
+    }
+
+    //浅克隆
+    Clone()
+    {
+        let part = new Part();
+        part.Id = this.Id;
+        part.UserData = this.UserData;
+        part.RotatedStates = this.RotatedStates;
+        part.StateIndex = this.StateIndex;
+        part.Holes = this.Holes;
+        return part;
+    }
+
+    //旋转起来,改变自身旋转状态(变异)
+    Mutate(): this
+    {
+        this.StateIndex = RandomIndex(this.RotatedStates.length, this.StateIndex);
+        return this;
+    }
+
+    //#region -------------------------File-------------------------
+    ReadFile(file: NestFiler)
+    {
+        this.Id = file.Read();
+        let count = file.Read() as number;
+        this.RotatedStates = [];
+        for (let i = 0; i < count; i++)
+        {
+            let state = new PartState();
+            state.ReadFile(file);
+            this.RotatedStates.push(state);
+        }
+
+        count = file.Read();
+        this.Holes = [];
+        for (let i = 0; i < count; i++)
+        {
+            let state = new PartState();
+            state.ReadFile(file);
+            this.Holes.push(state);
+        }
+    }
+    WriteFile(file: NestFiler)
+    {
+        file.Write(this.Id);
+        file.Write(this.RotatedStates.length);
+        for (let state of this.RotatedStates)
+            state.WriteFile(file);
+
+        file.Write(this.Holes.length);
+        for (let hole of this.Holes)
+            hole.WriteFile(file);
+    }
+    //#endregion
+}
--- a/src/Nest/Core/PartState.ts
+++ b/src/Nest/Core/PartState.ts
@@ -0,0 +1,35 @@
+import { Path } from "./Path";
+import { Point } from "../Common/Point";
+import { PathGeneratorSingle } from "./PathGenerator";
+import { NestFiler } from "../Common/Filer";
+
+/**
+ * 用于存放零件旋转后的状态
+ * 记录了用于放置时的轮廓。该轮廓总是首点等于0，便于放置时的计算。
+ */
+export class PartState
+{
+    Rotation: number;
+    OrigionMinPoint: Point;
+    Contour: Path;//轮廓
+
+    //#region -------------------------File-------------------------
+    ReadFile(file: NestFiler)
+    {
+        this.Rotation = file.Read();
+        this.OrigionMinPoint = file.Read();
+
+        let index = file.Read() as number;
+        this.Contour = PathGeneratorSingle.paths[index];
+
+        if (!this.Contour)
+            console.log(index);
+    }
+    WriteFile(file: NestFiler)
+    {
+        file.Write(this.Rotation);
+        file.Write(this.OrigionMinPoint);
+        file.Write(this.Contour.Id);
+    }
+    //#endregion
+}
--- a/src/Nest/Core/Path.ts
+++ b/src/Nest/Core/Path.ts
@@ -0,0 +1,345 @@
+import { Box2 } from "../Common/Box2";
+import { clipperCpp } from "../Common/ClipperCpp";
+import { NestFiler } from "../Common/Filer";
+import { Point } from "../Common/Point";
+import { equaln } from "../Common/Util";
+import { Vector2 } from "../Common/Vector2";
+
+/**
+ * 轮廓路径类
+ * 可以求NFP，和保存NFPCahce
+ * 因为NFP结果是按照最低点移动的,所以将点旋转后,按照盒子将点移动到0点.
+ */
+export class Path
+{
+    Id: number;
+    Points: Point[];
+    OutsideNFPCache: { [key: number]: Point[][]; } = {};
+    InsideNFPCache: { [key: number]: Point[][]; } = {};
+
+    constructor(origionPoints?: Point[], rotation: number = 0)
+    {
+        if (origionPoints)
+            this.Init(origionPoints, rotation);
+    }
+
+    Origion: Path;
+    //点表在旋转后的原始最小点.使用这个点将轮廓移动到0点
+    OrigionMinPoint: Vector2;
+    Rotation: number;
+
+    Size: Vector2;//序列化
+    Init(origionPoints: Point[], rotation: number)
+    {
+        this.Rotation = rotation;
+        if (rotation === 0)
+            this.Points = origionPoints.map(p => { return { ...p }; });
+        else
+        {
+            let c = Math.cos(rotation);
+            let s = Math.sin(rotation);
+
+            let npts: Point[] = [];
+            for (let p of origionPoints)
+            {
+                let x = p.x;
+                let y = p.y;
+                const x1 = x * c - y * s;
+                const y1 = x * s + y * c;
+                npts.push({ x: x1, y: y1 });
+            }
+            this.Points = npts;
+        }
+
+        let box = new Box2();
+        let v2 = new Vector2();
+        for (let p of this.Points)
+        {
+            v2.x = p.x;
+            v2.y = p.y;
+            box.expandByPoint(v2);
+        }
+
+        this.OrigionMinPoint = box.min;
+        this.Size = box.max.sub(box.min);
+
+        for (let p of this.Points)
+        {
+            p.x -= box.min.x;
+            p.y -= box.min.y;
+        }
+    }
+
+    GetNFPs(path: Path, outside: boolean): Point[][]
+    {
+        // 寻找内轮廓时,面积应该比本path小,这个判断移交给使用者自己判断
+        // if (!outside && this.Area < path.Area) return [];
+        let nfps = clipperCpp.lib.minkowskiSumPath(this.BigIntPoints, path.MirrorPoints, true);
+        nfps = nfps.filter((nfp) =>
+        {
+            let area = Area(nfp);
+            if (area > 1) return outside;//第一个不一定是外轮廓,但是面积为正时肯定为外轮廓
+            if (Math.abs(area) < 10) return false;//应该不用在移除这个了
+
+            let { x, y } = nfp[0];
+            if (outside)
+            {
+                if (this.Area > path.Area)
+                {
+                    let p = { x: path.InPoint.x + x, y: path.InPoint.y + y };
+                    if (p.x < 0 || p.y < 0 || p.x > this.BigSize.x || p.y > this.BigSize.y)
+                        return true;
+                    let dir = clipperCpp.lib.pointInPolygon(p, this.BigIntPoints);
+                    return dir === 0;
+                }
+                else
+                {
+                    let p = { x: this.InPoint.x - x, y: this.InPoint.y - y };
+                    if (p.x < 0 || p.y < 0 || p.x > path.BigSize.x || p.y > path.BigSize.y)
+                        return true;
+                    let dir = clipperCpp.lib.pointInPolygon(p, path.BigIntPoints);
+                    return dir === 0;
+                }
+            }
+            else
+            {
+                let p = { x: path.InPoint.x + x, y: path.InPoint.y + y };
+                if (p.x < 0 || p.y < 0 || p.x > this.BigSize.x || p.y > this.BigSize.y)
+                    return false;
+                let dir = clipperCpp.lib.pointInPolygon(p, this.BigIntPoints);
+                return dir === 1;
+            }
+        });
+        return nfps;
+    }
+
+    GetOutsideNFP(path: Path): Point[][]
+    {
+        let nfps = this.OutsideNFPCache[path.Id];
+        if (nfps) return nfps;
+
+        if (this.IsRect && path.IsRect)
+        {
+            let [ax, ay] = [this.Size.x * 1e4, this.Size.y * 1e4];
+            let [bx, by] = [path.Size.x * 1e4, path.Size.y * 1e4];
+            nfps = [[
+                { x: -bx, y: -by },
+                { x: ax, y: -by },
+                { x: ax, y: ay },
+                { x: -bx, y: ay },
+            ]];
+        }
+        else
+            nfps = this.GetNFPs(path, true);
+        this.OutsideNFPCache[path.Id] = nfps;
+        //虽然有这种神奇的特性，但是好像并不会提高性能。
+        // path.OutsideNFPCache[this.id] = (this, nfps.map(nfp =>
+        // {
+        //     return nfp.map(p =>
+        //     {
+        //         return { x: -p.x, y: -p.y };
+        //     });
+        // }));
+        return nfps;
+    }
+    GetInsideNFP(path: Path): Point[][]
+    {
+        if (path.Area > this.Area) return;
+        let nfp = this.InsideNFPCache[path.Id];
+        if (nfp) return nfp;
+
+        let nfps: Point[][];
+        if (this.IsRect)
+        {
+            let [ax, ay] = [this.Size.x * 1e4, this.Size.y * 1e4];
+            let [bx, by] = [path.Size.x * 1e4, path.Size.y * 1e4];
+
+            if (ax === bx) ax += 1;
+            if (ay === by) ay += 1;
+
+            if (bx > ax || by > ay)
+                return;
+            nfps = [[
+                { x: 0, y: 0 },
+                { x: ax - bx, y: 0 },
+                { x: ax - bx, y: ay - by },
+                { x: 0, y: ay - by }
+            ]];
+        }
+        else
+            nfps = this.GetNFPs(path, false);
+
+        if (path.Id !== undefined)
+            this.InsideNFPCache[path.Id] = nfps;
+        return nfps;
+    }
+
+    private _InPoint: Point;
+
+    /**
+     * 用这个点来检测是否在Path内部
+     */
+    private get InPoint()
+    {
+        if (this._InPoint) return this._InPoint;
+        let mp = { x: (this.Points[0].x + this.Points[1].x) / 2, y: (this.Points[0].y + this.Points[1].y) / 2 };
+        let normal = new Vector2(this.Points[1].x - this.Points[0].x, this.Points[1].y - this.Points[0].y).normalize();
+        // [normal.x, normal.y] = [normal.y, -normal.x];
+        mp.x -= normal.y;
+        mp.y += normal.x;
+
+        mp.x *= 1e4;
+        mp.y *= 1e4;
+        this._InPoint = mp;
+        return mp;
+    }
+
+    protected _BigIntPoints: Point[];
+    get BigIntPoints()
+    {
+        if (this._BigIntPoints) return this._BigIntPoints;
+        this._BigIntPoints = this.Points.map(p =>
+        {
+            return {
+                x: Math.round(p.x * 1e4),
+                y: Math.round(p.y * 1e4),
+            };
+        });
+        return this._BigIntPoints;
+    }
+
+    private _BigSize: Vector2;
+    get BigSize()
+    {
+        if (this._BigSize) return this._BigSize;
+        this._BigSize = new Vector2(this.Size.x * 1e4, this.Size.y * 1e4);
+        return this._BigSize;
+    }
+
+    protected _MirrorPoints: Point[];
+    get MirrorPoints()
+    {
+        if (!this._MirrorPoints)
+            this._MirrorPoints = this.BigIntPoints.map(p =>
+            {
+                return { x: -p.x, y: -p.y };
+            });
+
+        return this._MirrorPoints;
+    }
+
+    protected _BoundingBox: Box2;
+    get BoundingBox()
+    {
+        if (!this._BoundingBox)
+            this._BoundingBox = new Box2(new Vector2, this.Size);
+        return this._BoundingBox;
+    }
+
+    protected _Area: number;
+    get Area()
+    {
+        if (this._Area === undefined)
+            this._Area = Area(this.Points);
+        return this._Area;
+    }
+    set Area(a: number)
+    {
+        this._Area = a;
+    }
+
+    private _IsRect: boolean;
+    get IsRect()
+    {
+        if (this._IsRect === undefined)
+        {
+            let s = this.BoundingBox.getSize(new Vector2);
+            this._IsRect = equaln(this.Area, s.x * s.y, 1);
+        }
+        return this._IsRect;
+    }
+
+    ReadFile(file: NestFiler): void
+    {
+        let ver = file.Read();
+        this.Id = file.Read();
+        let arr = file.Read();
+        this.Points = [];
+        for (let i = 0; i < arr.length; i += 2)
+        {
+            let p = { x: arr[i], y: arr[i + 1] };
+            this.Points.push(p);
+        }
+
+        this.Size = new Vector2(file.Read(), file.Read());
+        this._Area = file.Read();
+        let id = file.Read();
+        if (id !== -1)
+        {
+            this.Origion = id;
+            this.Rotation = file.Read();
+            this.OrigionMinPoint = new Vector2(file.Read(), file.Read());
+        }
+    }
+    WriteFile(file: NestFiler): void
+    {
+        file.Write(1);//ver
+        file.Write(this.Id);
+        let arr: number[] = [];
+        for (let p of this.Points)
+            arr.push(p.x, p.y);
+        file.Write(arr);
+
+        file.Write(this.Size.x);
+        file.Write(this.Size.y);
+        file.Write(this._Area);
+        if (this.Origion && this.Origion.Id)
+        {
+            //如果有原始的id,则传递它,以便后续进行NFP复用.
+            file.Write(this.Origion.Id);
+            file.Write(this.Rotation);
+            file.Write(this.OrigionMinPoint.x);
+            file.Write(this.OrigionMinPoint.y);
+        }
+        else
+            file.Write(-1);
+    }
+}
+
+
+//点表面积
+export function Area(pts: Point[]): number
+{
+    let cnt = pts.length;
+    if (cnt < 3)
+        return 0;
+    let a = 0;
+    for (let i = 0, j = cnt - 1; i < cnt; ++i)
+    {
+        a += (pts[j].x + pts[i].x) * (pts[j].y - pts[i].y);
+        j = i;
+    }
+    return -a * 0.5;
+}
+
+/**
+ * 平移点表,返回新点表
+ */
+export function TranslatePath(pts: Point[], p: Point): Point[]
+{
+    return pts.map(px =>
+    {
+        return { x: p.x + px.x, y: p.y + px.y };
+    });
+}
+
+//缩放点表,返回原始点表
+export function PathScale(pts: Point[], scale: number): Point[]
+{
+    for (let p of pts)
+    {
+        p.x *= scale;
+        p.y *= scale;
+    }
+    return pts;
+}
--- a/src/Nest/Core/PathGenerator.ts
+++ b/src/Nest/Core/PathGenerator.ts
@@ -0,0 +1,85 @@
+import { Path } from "./Path";
+import { equaln, FixIndex } from "../Common/Util";
+
+/**
+ * 轮廓路径构造器
+ * 传递一组简化后的点表过来，如果已经有同样的点表时，返回已经生产的Path，避免重复产生Path。
+ * 使用相同的PATH有复用路径缓存。
+ *
+ * 每次进行优化时，必须清理构造器，保证Path生成是对本次优化唯一。
+ */
+class PathGenerator
+{
+    paths: Path[] = [];
+    pathAreaMap: { [key: string]: Path[]; } = {};
+
+    //缓存命中次数
+    cacheCount = 0;
+    /**
+     * 如果存在同样的轮廓，则返回已经构造的轮廓，
+     * 如果没有，则返回自身，并且注册它。
+     * 如果id没有被注册,那么证明它无法放置在bin中
+     */
+    Allocate(path: Path): Path
+    {
+        let area = path.Area.toFixed(0);
+        let paths = this.pathAreaMap[area];
+        if (paths)
+        {
+            for (let ps of paths)
+            {
+                if (EqualPath(ps, path))
+                {
+                    this.cacheCount++;
+                    return ps;
+                }
+            }
+            paths.push(path);
+        }
+        else
+            this.pathAreaMap[area] = [path];
+        return path;
+    }
+
+    RegisterId(path: Path)
+    {
+        if (path.Id === undefined)
+        {
+            path.Id = this.paths.length;
+            this.paths.push(path);
+        }
+    }
+
+    Clear()
+    {
+        this.paths.length = 0;
+        this.pathAreaMap = {};
+        this.cacheCount = 0;
+    }
+}
+
+/**
+ * 两路径相等,点表个数相等且每个点都相似
+ */
+function EqualPath(path1: Path, path2: Path): boolean
+{
+    if (path1.Points.length !== path2.Points.length) return false;
+
+    let p0 = path1.Points[0];
+    let p2Index = path2.Points.findIndex(p =>
+    {
+        return equaln(p.x, p0.x, 1e-3) && equaln(p.y, p0.y, 1e-3);
+    });
+
+    for (let i = 0; i < path1.Points.length; i++)
+    {
+        let p1 = path1.Points[i];
+        let p2 = path2.Points[FixIndex(p2Index + i, path2.Points)];
+
+        if (!equaln(p1.x, p2.x, 1e-4) || !equaln(p1.y, p2.y, 1e-4))
+            return false;
+    }
+    return true;
+}
+
+export let PathGeneratorSingle = new PathGenerator;
--- a/src/Nest/Core/PlaceType.ts
+++ b/src/Nest/Core/PlaceType.ts
@@ -0,0 +1,7 @@
+
+export enum PlaceType
+{
+    Hull = 0,//凸包模式 (凸包面积)
+    Box = 1, //盒子模式 (长乘以宽)
+    Gravity = 2,//重力模式(重力)
+}
--- a/src/assets/logo.png
+++ b/src/assets/logo.png
--- a/src/components/HelloWorld.vue
+++ b/src/components/HelloWorld.vue
@@ -1,132 +0,0 @@
-<template>
-  <div class="hello">
-    <h1>{{ msg }}</h1>
-    <p>
-      For a guide and recipes on how to configure / customize this project,<br />
-      check out the
-      <a href="https://cli.vuejs.org" target="_blank" rel="noopener"
-        >vue-cli documentation</a
-      >.
-    </p>
-    <h3>Installed CLI Plugins</h3>
-    <ul>
-      <li>
-        <a
-          href="https://github.com/vuejs/vue-cli/tree/dev/packages/%40vue/cli-plugin-babel"
-          target="_blank"
-          rel="noopener"
-          >babel</a
-        >
-      </li>
-      <li>
-        <a
-          href="https://github.com/vuejs/vue-cli/tree/dev/packages/%40vue/cli-plugin-typescript"
-          target="_blank"
-          rel="noopener"
-          >typescript</a
-        >
-      </li>
-      <li>
-        <a
-          href="https://github.com/vuejs/vue-cli/tree/dev/packages/%40vue/cli-plugin-eslint"
-          target="_blank"
-          rel="noopener"
-          >eslint</a
-        >
-      </li>
-      <li>
-        <a
-          href="https://github.com/vuejs/vue-cli/tree/dev/packages/%40vue/cli-plugin-unit-jest"
-          target="_blank"
-          rel="noopener"
-          >unit-jest</a
-        >
-      </li>
-    </ul>
-    <h3>Essential Links</h3>
-    <ul>
-      <li>
-        <a href="https://vuejs.org" target="_blank" rel="noopener">Core Docs</a>
-      </li>
-      <li>
-        <a href="https://forum.vuejs.org" target="_blank" rel="noopener"
-          >Forum</a
-        >
-      </li>
-      <li>
-        <a href="https://chat.vuejs.org" target="_blank" rel="noopener"
-          >Community Chat</a
-        >
-      </li>
-      <li>
-        <a href="https://twitter.com/vuejs" target="_blank" rel="noopener"
-          >Twitter</a
-        >
-      </li>
-      <li>
-        <a href="https://news.vuejs.org" target="_blank" rel="noopener">News</a>
-      </li>
-    </ul>
-    <h3>Ecosystem</h3>
-    <ul>
-      <li>
-        <a href="https://router.vuejs.org" target="_blank" rel="noopener"
-          >vue-router</a
-        >
-      </li>
-      <li>
-        <a href="https://vuex.vuejs.org" target="_blank" rel="noopener">vuex</a>
-      </li>
-      <li>
-        <a
-          href="https://github.com/vuejs/vue-devtools#vue-devtools"
-          target="_blank"
-          rel="noopener"
-          >vue-devtools</a
-        >
-      </li>
-      <li>
-        <a href="https://vue-loader.vuejs.org" target="_blank" rel="noopener"
-          >vue-loader</a
-        >
-      </li>
-      <li>
-        <a
-          href="https://github.com/vuejs/awesome-vue"
-          target="_blank"
-          rel="noopener"
-          >awesome-vue</a
-        >
-      </li>
-    </ul>
-  </div>
-</template>
-
-<script lang="ts">
-import Vue from "vue";
-
-export default Vue.extend({
-  name: "HelloWorld",
-  props: {
-    msg: String
-  }
-});
-</script>
-
-<!-- Add "scoped" attribute to limit CSS to this component only -->
-<style scoped lang="scss">
-h3 {
-  margin: 40px 0 0;
-}
-ul {
-  list-style-type: none;
-  padding: 0;
-}
-li {
-  display: inline-block;
-  margin: 0 10px;
-}
-a {
-  color: #42b983;
-}
-</style>
--- a/src/components/SelectFile.vue
+++ b/src/components/SelectFile.vue
@@ -0,0 +1,36 @@
+<template>
+  <span>
+    <el-button :type="buttonType" @click="$refs.inputFile.click()">
+      <slot>
+        选择文件
+      </slot>
+    </el-button>
+    <input
+      ref="inputFile"
+      v-show="false"
+      type="file"
+      id="input"
+      :accept="accept"
+      @change="
+        e => {
+          $emit('change', e.target.files);
+        }
+      "
+    />
+  </span>
+</template>
+<script lang="ts">
+import Vue from "vue";
+export default Vue.extend({
+  props: {
+    accept: {
+      type: String,
+      default: ""
+    },
+    buttonType: {
+      type: String,
+      default: ""
+    }
+  }
+});
+</script>
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,8 +1,44 @@
-import Vue from "vue";
-import App from "./App.vue";
+import Vue from 'vue';
+// import dayjs from 'dayjs';
+import App from './App.vue';
+import ElementUI from 'element-ui';
+import 'element-ui/lib/theme-chalk/index.css';
+import 'element-ui/lib/theme-chalk/display.css';
+// import 'element-ui/lib/theme-default/index.css'
+// import './icons'; // icon
+
+// import '@/styles/index.scss'; // global css
+// import '@/styles/custom.scss'; // custom css
+
+// import VueRouter from 'vue-router';
+// import store from './store';
+// import Vuex from 'vuex';
+
+// import router from './routes';
+
+// import './permission'; // permission control
+// import 'dayjs/locale/zh-cn'; // load on demand
+// import GlobalConfig from "./config";
+// GlobalConfig.event.saveAllConfig = ()=>{};
+
+// console.log(GlobalConfig.event)
+
+// dayjs.locale('zh-cn');
+
+// import('element-ui').then(ElementUI=>{
+  Vue.use(ElementUI, { size: 'small' });
+  // Vue.use(VueRouter);
+  // Vue.use(Vuex);
+
+
+  new Vue({
+    // el: '#app',
+    // template: '<App/>',
+  //   router,
+  //   store,
+    // components: { App }
+    render: (h: any) => h(App),
+  }).$mount('#app');
+// })

-Vue.config.productionTip = false;

-new Vue({
-  render: h => h(App)
-}).$mount("#app");
--- a/tests/unit/example.spec.ts
+++ b/tests/unit/example.spec.ts
@@ -1,12 +0,0 @@
-import { shallowMount } from "@vue/test-utils";
-import HelloWorld from "@/components/HelloWorld.vue";
-
-describe("HelloWorld.vue", () => {
-  it("renders props.msg when passed", () => {
-    const msg = "new message";
-    const wrapper = shallowMount(HelloWorld, {
-      propsData: { msg }
-    });
-    expect(wrapper.text()).toMatch(msg);
-  });
-});
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -2,7 +2,7 @@
  "compilerOptions": {
    "target": "esnext",
    "module": "esnext",
-    "strict": true,
+    // "strict": true,
    "jsx": "preserve",
    "importHelpers": true,
    "moduleResolution": "node",
@@ -10,21 +10,11 @@
    "allowSyntheticDefaultImports": true,
    "sourceMap": true,
    "baseUrl": ".",
-    "types": [
-      "webpack-env",
-      "jest"
-    ],
+    "types": ["node","webpack-env", "jest"],
    "paths": {
-      "@/*": [
-        "src/*"
-      ]
+      "@/*": ["src/*"]
    },
-    "lib": [
-      "esnext",
-      "dom",
-      "dom.iterable",
-      "scripthost"
-    ]
+    "lib": ["esnext", "dom", "dom.iterable", "scripthost"]
  },
  "include": [
    "src/**/*.ts",
@@ -33,7 +23,5 @@
    "tests/**/*.ts",
    "tests/**/*.tsx"
  ],
-  "exclude": [
-    "node_modules"
-  ]
+  "exclude": ["node_modules"]
 }
--- a/vue.config.js
+++ b/vue.config.js
@@ -0,0 +1,44 @@
+// vue.config.js
+const path = require("path");
+function resolve(dir) {
+  return path.join(__dirname, dir);
+}
+module.exports = {
+  // publicPath: '',
+  runtimeCompiler: true,
+  productionSourceMap: false,
+  configureWebpack: {
+    devtool: "source-map",
+    output: {
+      globalObject: "this",
+    },
+  },
+  chainWebpack(config) {
+    let  tsRule = config.module
+    .rule("ts").uses;
+    config.module
+      .rule("worker")
+      .test(/\.worker\.ts$/i)
+      .use("worker-loader")
+      .loader("worker-loader").end()
+      .use("ts-loader")
+      .loader("ts-loader").options({
+        transpileOnly: true,
+        happyPackMode: false
+      }).end();
+    config.module
+      .rule("fonts")
+      .use("url-loader")
+      .loader("url-loader")
+      .options({
+        limit: 4096,
+        fallback: {
+          loader: "file-loader",
+          options: {
+            name: "fonts/[name].[contenthash].[ext]",
+          },
+        },
+      })
+      .end();
+  },
+};