CADViewComponent/src/SimpleBoard.ts

import { CylinderGeometry, LineSegments, Matrix4, Mesh, MeshBasicMaterial, Vector2, Vector3 } from "three";
import { ExtrudeSolid, Polyline, boardUVGenerator2 } from "webcad_ue4_api";
import { ColorMaterial } from "./ColorPalette";
import { edgeMaterial } from "./Material";
import { DbText } from "./Text";

function getVec(data: object): Vector3
{
    return new Vector3(data["x"], data["y"], data["z"]);
}

enum BoardType
{
    Layer = 0,
    Vertical = 1,
    Behind = 2
}
export class SimpleBoard
{
    BoardName: string;
    boardPts: any[];
    boardBuls: any[];
    xD: Vector3;
    yD: Vector3;
    zD: Vector3;
    height: number;
    width: number;

    thickness: number;
    pBase: Vector3;
    SubBoardLocal: any[];
    Drillings: any[];
    DataID: number;
    _BoardType: BoardType;
    _CustomNumber: string;

    constructor(boardData: any)
    {
        this.boardPts = boardData["Pts"];
        this.boardBuls = boardData["Buls"];
        this.pBase = getVec(boardData["BasePoint"]);

        this.xD = getVec(boardData["XVec"]);
        this.yD = getVec(boardData["YVec"]);
        this.zD = getVec(boardData["ZVec"]);

        this.SubBoardLocal = boardData["SubBoardLocal"] ?? [];

        this.Drillings = boardData["Drillings"] ?? [];

        this.height = boardData["L"];
        this.width = boardData["W"];
        this.thickness = boardData["H"];

        this.BoardName = boardData["BoardName"];
        this.DataID = boardData['DataID'];

        this._BoardType = boardData['BoardType'];
        this._CustomNumber = boardData['CustomNumber'];
    }

    public Conver2Ext(): ExtrudeSolid
    {
        let pts: Vector2[] = [];
        let buls: number[] = [];


        let boardMat = new Matrix4();
        let matInv: Matrix4 = new Matrix4();
        //InitBoardMat

        this.pBase.add(this.zD.clone().multiplyScalar(-this.thickness));

        boardMat.makeBasis(this.xD, this.yD, this.zD);
        boardMat.setPosition(this.pBase);
        matInv.getInverse(boardMat);

        if (this.boardPts && this.boardPts.length !== 0)
            for (let i = 0; i < this.boardPts.length; i++)
            {
                let pt = getVec(this.boardPts[i]);
                if (this.boardPts[i].z !== undefined)
                    pt.applyMatrix4(matInv);
                pts.push(new Vector2(pt.x, pt.y));
                buls.push(this.boardBuls[i]);
            }
        else
        {

            pts.push(new Vector2(0, 0),
                new Vector2(this.width, 0),
                new Vector2(this.width, length),
                new Vector2(0, length),
                new Vector2(0, 0)
            );
            buls.push(0, 0, 0, 0, 0);
        }

        let ext = new ExtrudeSolid();
        ext.OCSNoClone.copy(boardMat);
        let pl = new Polyline(pts.map((p, i) => { return { pt: p, bul: buls[i] }; }));
        ext.Thickness = this.thickness;
        ext.ContourCurve = pl;

        if (this.SubBoardLocal.length > 0)
            ext.Grooves.push(...this.SubBoardLocal.map(sub => new SimpleBoard(sub).Conver2Ext()));
        return ext;
    }

    createBoard(boardMaterial: MeshBasicMaterial)
    {
        let ext = this.Conver2Ext();
        if (this.BoardName === "地脚线")
            Object.defineProperty(ext, "UCGenerator",
                {
                    get: function ()
                    {
                        return boardUVGenerator2;
                    },
                });

        //板件被镜像时.
        // if (!equalv3(xD.clone().cross(yD), ZD))
        // {
        //     for (let f of ext.faces)
        //         [f.a, f.c] = [f.c, f.a];
        // }

        //边
        let edges: (LineSegments | Mesh)[] = [new LineSegments(ext.EdgeGeometry, edgeMaterial)];
        edges[0].applyMatrix4(ext.OCSNoClone);

        if (this.Drillings.length > 0)
        {
            let dris = this.Drillings;
            for (let dri of dris)
            {
                let geo = new CylinderGeometry(dri.r, dri.r, dri.h, 8);
                geo.rotateX(Math.PI * 0.5);

                if (dri.f === 0) //0正
                    geo.translate(dri.x, dri.y, -dri.h * 0.5 + this.thickness);
                else             //1反
                    geo.translate(dri.x, dri.y, dri.h * 0.5);

                geo.applyMatrix4(ext.OCSNoClone);

                let mesh = new Mesh(geo, ColorMaterial.GetBasicMaterial(1));
                edges.push(mesh);
            }
        }

        let mesh = new Mesh(ext.MeshGeometry, boardMaterial);
        mesh.userData = ext.Normal;
        edges.forEach(e => e.userData = ext.Normal);
        // 自定义编号
        if (this._CustomNumber)
        {
            mesh.add(this.createCustomNo());
        }
        mesh.applyMatrix4(ext.OCSNoClone);
        mesh.updateWorldMatrix(false, true);



        return { mesh, edges };
    }
    private createCustomNo()
    {
        let text = new DbText(this._CustomNumber?.toString(), 100);
        let position = new Vector3(this.width * 0.5, this.height * 0.5, this.thickness * 0.5);
        if (this._BoardType === BoardType.Layer)
        {
            text.applyMatrix4(new Matrix4().makeRotationZ(-Math.PI / 2).setPosition(position));
        }
        else
        {
            text.applyMatrix4(new Matrix4().setPosition(position));
        }

        // text.CreateDoubleMesh(this._BoardType === BoardType.Layer);

        return text;
    }
}