370 lines
10 KiB
TypeScript
370 lines
10 KiB
TypeScript
import type { PolylineProps } from 'cadapi'
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import { CADFiler, Circle, Polyline, Status, VKnifToolPath, isTargetCurInOrOnSourceCur } from 'cadapi'
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import type { Box3 } from 'three'
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import { Vector2, Vector3 } from 'three'
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import { arrayRemoveDuplicateBySort } from '../ArrayExt'
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import type { Curve2d } from '../base/CAD'
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import { Arc2d, Point2d, copyTextToClipboard } from '../base/CAD'
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import { CurveWrap } from './Curves2Parts'
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// import type { Curve2d } from '../../common/base/CAD'
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export class PolylineHelper {
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/** 创建闭合多段线 */
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static create(pts: any[], closeMark = false): Polyline {
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let lined: PolylineProps[] = []
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let count = pts.length
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for (let i = 0; i < count; i++) {
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let p0 = pts[i]
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lined.push({ pt: new Vector2(p0.x, p0.y), bul: p0.bul || 0 })
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}
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let pls = new Polyline(lined)
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pls.CloseMark = closeMark
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return pls
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}
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static createByCurve2d(curs: Curve2d[], closeMark = true): Polyline {
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let lined: PolylineProps[] = []
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for (let cur of curs) {
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let x = cur.StartPoint.m_X
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let y = cur.StartPoint.m_Y
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let bul = 0
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if (cur instanceof Arc2d)
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bul = cur.Bul || 0
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lined.push({ pt: new Vector2(x, y), bul })
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}
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let pls = new Polyline(lined)
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pls.CloseMark = true
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return pls
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}
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static createByPts(pts: any[], buls: number[], closeMark = false): Polyline {
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let plps: PolylineProps[] = []
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let count = pts.length
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for (let i = 0; i < count; i++) {
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let p0 = pts[i]
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plps.push({ pt: new Vector2(p0.x, p0.y), bul: buls[i] })
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}
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let pls = new Polyline(plps)
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pls.CloseMark = closeMark
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return pls
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}
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static getSimplePoints(pts: any[], offset: number): any[] {
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let pl = PolylineHelper.create(pts)
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pl.CloseMark = true
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let cureW = new CurveWrap(pl, offset, true)
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let pts2 = cureW.GetOutsidePoints()
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arrayRemoveDuplicateBySort(pts2, (p1, p2) => (p1.x - p2.x) * (p1.x - p2.x) + (p1.y - p2.y) * (p1.y - p2.y) < 1e-2)
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return pts2
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}
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static createByWidthLength(w: number, l: number): Polyline {
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let plps: PolylineProps[] = []
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plps.push({ pt: new Vector2(0, 0), bul: 0 })
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plps.push({ pt: new Vector2(w, 0), bul: 0 })
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plps.push({ pt: new Vector2(w, l), bul: 0 })
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plps.push({ pt: new Vector2(0, l), bul: 0 })
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let pls = new Polyline(plps)
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pls.CloseMark = true
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return pls
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}
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/** 多段线，添加位置移动 返回新多段线 */
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static moveTo(pl: Polyline, x: number, y: number): Polyline {
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let lindData = pl.LineData
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let pos = pl.Position
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let newPts: PolylineProps[] = []
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for (let p of lindData) {
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let nx = p.pt.x + pos.x + x
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let ny = p.pt.y + pos.y + y
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if (ny < 7.9) {
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// console.log('修边小于 7.9????', ny)
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}
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let bul = p.bul
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newPts.push({ pt: new Vector2(nx, ny), bul })
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}
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let npl = new Polyline(newPts)
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npl.CloseMark = pl.CloseMark
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return npl
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}
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/** 重设 多段线的几点 */
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static resetPosition(pl: Polyline): Polyline {
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let lindData = pl.LineData
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let pos = pl.Position
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let newPts: PolylineProps[] = []
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for (let p of lindData) {
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let nx = p.pt.x + pos.x
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let ny = p.pt.y + pos.y
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let bul = p.bul
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newPts.push({ pt: new Vector2(nx, ny), bul })
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}
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let npl = new Polyline(newPts)
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npl.CloseMark = pl.CloseMark
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return npl
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}
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/** 获得v型刀走刀路径 */o
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static getVModelPoints(pl: Polyline, depth: number, ang: number): any[] {
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// let ang = Math.PI * (0.5 * angle) / 180 ;
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let ps = []
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let bx = pl.Position.x
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let by = pl.Position.y
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if (ang > 0.01) {
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let rt = VKnifToolPath(pl, depth, ang / 2)
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ps = rt.map((t) => { return { x: t.pt.x + bx, y: t.pt.y + by, z: t.pt.z, bul: t.bul, r: 0 } })
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}
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else {
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ps = pl.LineData.map((t) => { return { x: t.pt.x + bx, y: t.pt.y + by, z: 0, bul: t.bul, r: 0 } })
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}
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for (let i = 0; i < ps.length; i++) {
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let p = ps[i]
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if (p.bul == 0)
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continue
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let p2 = (i == ps.length - 1 ? ps[0] : ps[i + 1])
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let r = this.getArcRadius(p.x, p.y, p2.x, p2.y, p.bul)
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p.r = r
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}
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return ps
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}
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static ConverPolyLin2Circle(polyline: Polyline, fuzz = 0.1): Circle | undefined {
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let box = polyline.BoundingBox
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let size = box.getSize(new Vector3())
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if (!this.equaln(size.x, size.y, fuzz))// 盒子四方
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return undefined
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let circleLength = 2 * Math.PI * size.x
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if (!this.equaln(circleLength, polyline.Length, fuzz * 2))
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return undefined
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let circleArea = Math.PI * size.x * size.x
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if (!this.equaln(circleArea, polyline.Area, fuzz * 2))
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return undefined
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let r = size.x// 必须备份(因为我们要复用这个vector变量)
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return new Circle(box.getCenter(size), r)
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}
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// 有问题
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static getVModelPoints_offset(pl: Polyline, offset: number, depth: number, angle: number) {
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let npl = offset == 0 ? pl : pl.GetOffsetCurves(offset)[0]
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// if(offset != 0)
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// {
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// ClipboardTest.write2PolyLine(pl,npl);
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// }
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return PolylineHelper.getVModelPoints(npl, depth, angle)
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}
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static getArcRadius(x1: number, y1: number, x2: number, y2: number, bul: number): number {
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let bul2 = Math.abs(bul)
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let d = Math.sqrt((x1 - x2) ** 2 + (y1 - y2) ** 2) / 2
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return 0.5 * d * (1 + bul2 ** 2) / bul2
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}
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// 圆 转 多段线
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static cicleToPolyline(c: Circle): Polyline {
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let arcs = c.GetSplitCurves([0, 0.5])
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let pl = Polyline.FastCombine(arcs)
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return pl
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}
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/** 判断多段线是否 重叠 */
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static isIntersect(pl1: Polyline, pl2: Polyline): boolean {
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let box1 = this.getBox(pl1)
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let box2 = this.getBox(pl2)
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if (!box1.intersectsBox(box2))
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return false // 肯定不相交
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let ipts = pl1.IntersectWith(pl2, 0)
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if (ipts.length === 0) {
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if (pl1.Area > pl2.Area)// 缓存面积
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{
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if (isTargetCurInOrOnSourceCur(pl1, pl2))
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return true // 包含
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}
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else {
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if (isTargetCurInOrOnSourceCur(pl2, pl1))
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return true // 包含
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}
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return false
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}
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else {
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return true // 有交点 一定有交集
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}
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}
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// 多段线 圆弧合并
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static mergeCurve(pl2: Polyline): Polyline {
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const curves = pl2.Explode()
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arrayRemoveDuplicateBySort(curves, (c1, c2) => {
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return c1.Join(c2) === Status.True
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})
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return Polyline.FastCombine(curves)
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}
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/**
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* pl2 包含在pl1 内
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*
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*/
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// static isInside(pl1:Polyline,pl2:Polyline):boolean
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// {
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// let box1 = this.getBox(pl1);
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// let box2 = this.getBox(pl2);
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// if (!box1.intersectsBox(box2)) return false; //肯定不相交
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// let ipts = pl1.IntersectWith(pl2, 0);
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// if (ipts.length > 0) return true; //有交点 一定有交集
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// }
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/**
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* 两片板的干涉检查
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*
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* @param pl1
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* @param pls1_inner
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* @param pls1_model
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* @param pl2
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* @param pls2_inner
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* @param pls2_model
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* @returns
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*/
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static isOverLap(pl1: Polyline, pls1_inner: Polyline[], pls1_model: Polyline[], pl2: Polyline, pls2_inner: Polyline[], pls2_model: Polyline[]) {
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// 是否干涉， 被包含在造型洞，不算干涉
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let isOverlap = this.boxIsOverlap(pl1, pls1_inner, pl2, pls2_inner)
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if (isOverlap)
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return true
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// 造型 ，2v 刀路 是否干涉
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for (let pl1_model of pls1_model) {
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if (pl1_model.IntersectWith(pl2, 0).length > 0)
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return true
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for (let pl2_inner of pls2_inner) {
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if (pl1_model.IntersectWith(pl2_inner, 0).length > 0)
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return true
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}
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}
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for (let pl2_model of pls2_model) {
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if (pl2_model.IntersectWith(pl1, 0).length > 0)
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return true
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for (let pl1_inner of pls1_inner) {
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if (pl2_model.IntersectWith(pl1_inner, 0).length > 0)
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return true
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}
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}
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return false
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}
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private static boxIsOverlap(pl1: Polyline, pls1_inner: Polyline[], pl2: Polyline, pls2_inner: Polyline[]) {
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let box1 = this.getBox(pl1)
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let box2 = this.getBox(pl2)
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if (!box1.intersectsBox(box2))
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return false // 肯定不相交
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let ipts = pl1.IntersectWith(pl2, 0)
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if (ipts.length > 0)
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return true // 有交点 一定有交集
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if (pl1.Area > pl2.Area)// 缓存面积
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{
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if (isTargetCurInOrOnSourceCur(pl1, pl2)) // pl1包含 pl2
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{
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for (let mpl of pls1_inner) // 如果pl1有造型洞包含pl2， 则表示不干涉，返回false
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{
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if (isTargetCurInOrOnSourceCur(mpl, pl2) == true)
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return false
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}
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return true
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}
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}
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else {
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if (isTargetCurInOrOnSourceCur(pl2, pl1)) // pl2包含 pl1
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{
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for (let mpl of pls2_inner) // 如果pl2有造型洞包含pl1， 则表示不干涉，返回false
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{
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if (isTargetCurInOrOnSourceCur(mpl, pl1) == true)
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return false
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}
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return true
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}
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}
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return false
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}
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/** 判断 点是否在多段线内 */
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static isPointInPolyline(pl1: Polyline, x: number, y: number): boolean {
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return pl1.PtInCurve(new Vector3(x, y, 0))
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}
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static getBox(pl1: Polyline): Box3 {
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if (!pl1.box_tp)
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pl1.box_tp = pl1.BoundingBox
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return pl1.box_tp as Box3
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}
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static getArea(pl1: Polyline): number {
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if (!pl1.area_tp)
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pl1.area_tp = pl1.Area
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return pl1.area_tp as number
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}
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static getPath(pl: Polyline): Path2D {
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let path = new Path2D()
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let p0 = pl.LineData[0].pt
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path.moveTo(p0.x, p0.y)
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for (let i = 0; i < pl.LineData.length; i++) {
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let p0 = pl.LineData[i].pt
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let p1 = (i == pl.LineData.length - 1) ? pl.LineData[0].pt : pl.LineData[i + 1].pt
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let bul = pl.LineData[i].bul
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if (bul == 0) {
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path.lineTo(p1.x, p1.y)
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}
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else {
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let arc = new Arc2d(new Point2d(p0.x, p0.y), new Point2d(p1.x, p1.y), bul)
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path.arc(arc.m_Center.m_X, arc.m_Center.m_Y, arc.m_Radius, arc.m_StartAngle, arc.m_EndAngle, bul < 0)
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}
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}
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path.closePath()
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return path
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}
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static equaln(v1: number, v2: number, fuzz = 1e-5) {
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return Math.abs(v1 - v2) <= fuzz
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}
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static toClipboard(en: Polyline | any) {
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let f = new CADFiler()
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f.Write(1)// 实体个数
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f.WriteObject(en)
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copyTextToClipboard(f.ToString())
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}
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static getStrPLs(ens: any[]) {
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if (ens.length == 0)
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return ''
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let f = new CADFiler()
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f.Write(ens.length)// 实体个数
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for (let en of ens)
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f.WriteObject(en)
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return f.ToString()
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}
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}
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