@tldraw/editor/dist-esm/lib/primitives/geometry/Group2d.mjs.map

tldraw infinite canvas SDK (editor).

{
  "version": 3,
  "sources": ["../../../../src/lib/primitives/geometry/Group2d.ts"],
  "sourcesContent": ["import { EMPTY_ARRAY } from '@tldraw/state'\nimport { assert, invLerp, lerp } from '@tldraw/utils'\nimport { Box } from '../Box'\nimport { Mat } from '../Mat'\nimport { Vec, VecLike } from '../Vec'\nimport { Geometry2d, Geometry2dFilters, Geometry2dOptions } from './Geometry2d'\n\n/** @public */\nexport class Group2d extends Geometry2d {\n\tchildren: Geometry2d[] = []\n\tignoredChildren: Geometry2d[] = []\n\n\tconstructor(\n\t\tconfig: Omit<Geometry2dOptions, 'isClosed' | 'isFilled'> & {\n\t\t\tchildren: Geometry2d[]\n\t\t}\n\t) {\n\t\tsuper({ ...config, isClosed: true, isFilled: false })\n\n\t\tconst addChildren = (children: Geometry2d[]) => {\n\t\t\tfor (const child of children) {\n\t\t\t\tif (child instanceof Group2d) {\n\t\t\t\t\taddChildren(child.children)\n\t\t\t\t} else if (child.ignore) {\n\t\t\t\t\tthis.ignoredChildren.push(child)\n\t\t\t\t} else {\n\t\t\t\t\tthis.children.push(child)\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\taddChildren(config.children)\n\n\t\tif (this.children.length === 0) throw Error('Group2d must have at least one child')\n\t}\n\n\toverride getVertices(filters: Geometry2dFilters): Vec[] {\n\t\tif (this.isExcludedByFilter(filters)) return []\n\t\treturn this.children\n\t\t\t.filter((c) => !c.isExcludedByFilter(filters))\n\t\t\t.flatMap((c) => c.getVertices(filters))\n\t}\n\n\toverride nearestPoint(point: VecLike, filters?: Geometry2dFilters): Vec {\n\t\tlet dist = Infinity\n\t\tlet nearest: Vec | undefined\n\n\t\tconst { children } = this\n\n\t\tif (children.length === 0) {\n\t\t\tthrow Error('no children')\n\t\t}\n\n\t\tlet p: Vec\n\t\tlet d: number\n\t\tfor (const child of children) {\n\t\t\tif (child.isExcludedByFilter(filters)) continue\n\t\t\tp = child.nearestPoint(point, filters)\n\t\t\td = Vec.Dist2(p, point)\n\t\t\tif (d < dist) {\n\t\t\t\tdist = d\n\t\t\t\tnearest = p\n\t\t\t}\n\t\t}\n\t\tif (!nearest) throw Error('nearest point not found')\n\t\treturn nearest\n\t}\n\n\toverride distanceToPoint(point: VecLike, hitInside = false, filters?: Geometry2dFilters) {\n\t\tlet smallestDistance = Infinity\n\t\tfor (const child of this.children) {\n\t\t\tif (child.isExcludedByFilter(filters)) continue\n\t\t\tconst distance = child.distanceToPoint(point, hitInside, filters)\n\t\t\tif (distance < smallestDistance) {\n\t\t\t\tsmallestDistance = distance\n\t\t\t}\n\t\t}\n\t\treturn smallestDistance\n\t}\n\n\toverride hitTestPoint(\n\t\tpoint: VecLike,\n\t\tmargin: number,\n\t\thitInside: boolean,\n\t\tfilters = Geometry2dFilters.EXCLUDE_LABELS\n\t): boolean {\n\t\treturn !!this.children\n\t\t\t.filter((c) => !c.isExcludedByFilter(filters))\n\t\t\t.find((c) => c.hitTestPoint(point, margin, hitInside))\n\t}\n\n\toverride hitTestLineSegment(\n\t\tA: VecLike,\n\t\tB: VecLike,\n\t\tzoom: number,\n\t\tfilters = Geometry2dFilters.EXCLUDE_LABELS\n\t): boolean {\n\t\treturn !!this.children\n\t\t\t.filter((c) => !c.isExcludedByFilter(filters))\n\t\t\t.find((c) => c.hitTestLineSegment(A, B, zoom))\n\t}\n\n\toverride intersectLineSegment(A: VecLike, B: VecLike, filters?: Geometry2dFilters) {\n\t\treturn this.children.flatMap((child) => {\n\t\t\tif (child.isExcludedByFilter(filters)) return EMPTY_ARRAY\n\t\t\treturn child.intersectLineSegment(A, B, filters)\n\t\t})\n\t}\n\n\toverride intersectCircle(center: VecLike, radius: number, filters?: Geometry2dFilters) {\n\t\treturn this.children.flatMap((child) => {\n\t\t\tif (child.isExcludedByFilter(filters)) return EMPTY_ARRAY\n\t\t\treturn child.intersectCircle(center, radius, filters)\n\t\t})\n\t}\n\n\toverride intersectPolygon(polygon: VecLike[], filters?: Geometry2dFilters) {\n\t\treturn this.children.flatMap((child) => {\n\t\t\tif (child.isExcludedByFilter(filters)) return EMPTY_ARRAY\n\t\t\treturn child.intersectPolygon(polygon, filters)\n\t\t})\n\t}\n\n\toverride intersectPolyline(polyline: VecLike[], filters?: Geometry2dFilters) {\n\t\treturn this.children.flatMap((child) => {\n\t\t\tif (child.isExcludedByFilter(filters)) return EMPTY_ARRAY\n\t\t\treturn child.intersectPolyline(polyline, filters)\n\t\t})\n\t}\n\n\toverride interpolateAlongEdge(t: number, filters?: Geometry2dFilters): Vec {\n\t\tconst totalLength = this.getLength(filters)\n\n\t\tconst distanceToTravel = t * totalLength\n\t\tlet distanceTraveled = 0\n\t\tfor (const child of this.children) {\n\t\t\tif (child.isExcludedByFilter(filters)) continue\n\t\t\tconst childLength = child.length\n\t\t\tconst newDistanceTraveled = distanceTraveled + childLength\n\t\t\tif (newDistanceTraveled >= distanceToTravel) {\n\t\t\t\treturn child.interpolateAlongEdge(\n\t\t\t\t\tinvLerp(distanceTraveled, newDistanceTraveled, distanceToTravel),\n\t\t\t\t\tfilters\n\t\t\t\t)\n\t\t\t}\n\t\t\tdistanceTraveled = newDistanceTraveled\n\t\t}\n\n\t\treturn this.children[this.children.length - 1].interpolateAlongEdge(1, filters)\n\t}\n\n\toverride uninterpolateAlongEdge(point: VecLike, filters?: Geometry2dFilters): number {\n\t\tconst totalLength = this.getLength(filters)\n\n\t\tlet closestChild = null\n\t\tlet closestDistance = Infinity\n\t\tlet distanceTraveled = 0\n\n\t\tfor (const child of this.children) {\n\t\t\tif (child.isExcludedByFilter(filters)) continue\n\t\t\tconst childLength = child.getLength(filters)\n\t\t\tconst newDistanceTraveled = distanceTraveled + childLength\n\n\t\t\tconst distance = child.distanceToPoint(point, false, filters)\n\t\t\tif (distance < closestDistance) {\n\t\t\t\tclosestDistance = distance\n\t\t\t\tclosestChild = {\n\t\t\t\t\tstartLength: distanceTraveled,\n\t\t\t\t\tendLength: newDistanceTraveled,\n\t\t\t\t\tchild,\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tdistanceTraveled = newDistanceTraveled\n\t\t}\n\n\t\tassert(closestChild)\n\n\t\tconst normalizedDistanceInChild = closestChild.child.uninterpolateAlongEdge(point, filters)\n\t\tconst childTLength = lerp(\n\t\t\tclosestChild.startLength,\n\t\t\tclosestChild.endLength,\n\t\t\tnormalizedDistanceInChild\n\t\t)\n\t\treturn childTLength / totalLength\n\t}\n\n\toverride transform(transform: Mat): Geometry2d {\n\t\treturn new Group2d({\n\t\t\tchildren: this.children.map((c) => c.transform(transform)),\n\t\t\tisLabel: this.isLabel,\n\t\t\tdebugColor: this.debugColor,\n\t\t\tignore: this.ignore,\n\t\t})\n\t}\n\n\tgetArea() {\n\t\t// todo: this is a temporary solution, assuming that the first child defines the group size; we would want to flatten the group and then find the area of the hull polygon\n\t\treturn this.children[0].area\n\t}\n\n\ttoSimpleSvgPath() {\n\t\tlet path = ''\n\t\tfor (const child of this.children) {\n\t\t\tpath += child.toSimpleSvgPath()\n\t\t}\n\n\t\tconst corners = Box.FromPoints(this.vertices).corners\n\t\t// draw just a few pixels around each corner, e.g. an L shape for the bottom left\n\n\t\tfor (let i = 0, n = corners.length; i < n; i++) {\n\t\t\tconst corner = corners[i]\n\t\t\tconst prevCorner = corners[(i - 1 + n) % n]\n\t\t\tconst prevDist = corner.dist(prevCorner)\n\t\t\tconst nextCorner = corners[(i + 1) % n]\n\t\t\tconst nextDist = corner.dist(nextCorner)\n\n\t\t\tconst A = corner.clone().lrp(prevCorner, 4 / prevDist)\n\t\t\tconst B = corner\n\t\t\tconst C = corner.clone().lrp(nextCorner, 4 / nextDist)\n\n\t\t\tpath += `M${A.x},${A.y} L${B.x},${B.y} L${C.x},${C.y} `\n\t\t}\n\t\treturn path\n\t}\n\n\tgetLength(filters?: Geometry2dFilters): number {\n\t\tlet length = 0\n\t\tfor (const child of this.children) {\n\t\t\tif (child.isExcludedByFilter(filters)) continue\n\t\t\tlength += child.length\n\t\t}\n\t\treturn length\n\t}\n\n\tgetSvgPathData(): string {\n\t\treturn this.children.map((c, i) => (c.isLabel ? '' : c.getSvgPathData(i === 0))).join(' ')\n\t}\n}\n"],
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