{"version":3,"file":"SelectionBox.cjs","sources":["../../src/interactive/SelectionBox.js"],"sourcesContent":["import { Frustum, Vector3 } from 'three'\n\nconst frustum = /* @__PURE__ */ new Frustum()\nconst center = /* @__PURE__ */ new Vector3()\n\nconst tmpPoint = /* @__PURE__ */ new Vector3()\n\nconst vecNear = /* @__PURE__ */ new Vector3()\nconst vecTopLeft = /* @__PURE__ */ new Vector3()\nconst vecTopRight = /* @__PURE__ */ new Vector3()\nconst vecDownRight = /* @__PURE__ */ new Vector3()\nconst vecDownLeft = /* @__PURE__ */ new Vector3()\n\nconst vecFarTopLeft = /* @__PURE__ */ new Vector3()\nconst vecFarTopRight = /* @__PURE__ */ new Vector3()\nconst vecFarDownRight = /* @__PURE__ */ new Vector3()\nconst vecFarDownLeft = /* @__PURE__ */ new Vector3()\n\nconst vectemp1 = /* @__PURE__ */ new Vector3()\nconst vectemp2 = /* @__PURE__ */ new Vector3()\nconst vectemp3 = /* @__PURE__ */ new Vector3()\n\nclass SelectionBox {\n  constructor(camera, scene, deep) {\n    this.camera = camera\n    this.scene = scene\n    this.startPoint = new Vector3()\n    this.endPoint = new Vector3()\n    this.collection = []\n    this.deep = deep || Number.MAX_VALUE\n  }\n\n  select(startPoint, endPoint) {\n    this.startPoint = startPoint || this.startPoint\n    this.endPoint = endPoint || this.endPoint\n    this.collection = []\n\n    this.updateFrustum(this.startPoint, this.endPoint)\n    this.searchChildInFrustum(frustum, this.scene)\n\n    return this.collection\n  }\n\n  updateFrustum(startPoint, endPoint) {\n    startPoint = startPoint || this.startPoint\n    endPoint = endPoint || this.endPoint\n\n    // Avoid invalid frustum\n\n    if (startPoint.x === endPoint.x) {\n      endPoint.x += Number.EPSILON\n    }\n\n    if (startPoint.y === endPoint.y) {\n      endPoint.y += Number.EPSILON\n    }\n\n    this.camera.updateProjectionMatrix()\n    this.camera.updateMatrixWorld()\n\n    if (this.camera.isPerspectiveCamera) {\n      tmpPoint.copy(startPoint)\n      tmpPoint.x = Math.min(startPoint.x, endPoint.x)\n      tmpPoint.y = Math.max(startPoint.y, endPoint.y)\n      endPoint.x = Math.max(startPoint.x, endPoint.x)\n      endPoint.y = Math.min(startPoint.y, endPoint.y)\n\n      vecNear.setFromMatrixPosition(this.camera.matrixWorld)\n      vecTopLeft.copy(tmpPoint)\n      vecTopRight.set(endPoint.x, tmpPoint.y, 0)\n      vecDownRight.copy(endPoint)\n      vecDownLeft.set(tmpPoint.x, endPoint.y, 0)\n\n      vecTopLeft.unproject(this.camera)\n      vecTopRight.unproject(this.camera)\n      vecDownRight.unproject(this.camera)\n      vecDownLeft.unproject(this.camera)\n\n      vectemp1.copy(vecTopLeft).sub(vecNear)\n      vectemp2.copy(vecTopRight).sub(vecNear)\n      vectemp3.copy(vecDownRight).sub(vecNear)\n      vectemp1.normalize()\n      vectemp2.normalize()\n      vectemp3.normalize()\n\n      vectemp1.multiplyScalar(this.deep)\n      vectemp2.multiplyScalar(this.deep)\n      vectemp3.multiplyScalar(this.deep)\n      vectemp1.add(vecNear)\n      vectemp2.add(vecNear)\n      vectemp3.add(vecNear)\n\n      var planes = frustum.planes\n\n      planes[0].setFromCoplanarPoints(vecNear, vecTopLeft, vecTopRight)\n      planes[1].setFromCoplanarPoints(vecNear, vecTopRight, vecDownRight)\n      planes[2].setFromCoplanarPoints(vecDownRight, vecDownLeft, vecNear)\n      planes[3].setFromCoplanarPoints(vecDownLeft, vecTopLeft, vecNear)\n      planes[4].setFromCoplanarPoints(vecTopRight, vecDownRight, vecDownLeft)\n      planes[5].setFromCoplanarPoints(vectemp3, vectemp2, vectemp1)\n      planes[5].normal.multiplyScalar(-1)\n    } else if (this.camera.isOrthographicCamera) {\n      const left = Math.min(startPoint.x, endPoint.x)\n      const top = Math.max(startPoint.y, endPoint.y)\n      const right = Math.max(startPoint.x, endPoint.x)\n      const down = Math.min(startPoint.y, endPoint.y)\n\n      vecTopLeft.set(left, top, -1)\n      vecTopRight.set(right, top, -1)\n      vecDownRight.set(right, down, -1)\n      vecDownLeft.set(left, down, -1)\n\n      vecFarTopLeft.set(left, top, 1)\n      vecFarTopRight.set(right, top, 1)\n      vecFarDownRight.set(right, down, 1)\n      vecFarDownLeft.set(left, down, 1)\n\n      vecTopLeft.unproject(this.camera)\n      vecTopRight.unproject(this.camera)\n      vecDownRight.unproject(this.camera)\n      vecDownLeft.unproject(this.camera)\n\n      vecFarTopLeft.unproject(this.camera)\n      vecFarTopRight.unproject(this.camera)\n      vecFarDownRight.unproject(this.camera)\n      vecFarDownLeft.unproject(this.camera)\n\n      var planes = frustum.planes\n\n      planes[0].setFromCoplanarPoints(vecTopLeft, vecFarTopLeft, vecFarTopRight)\n      planes[1].setFromCoplanarPoints(vecTopRight, vecFarTopRight, vecFarDownRight)\n      planes[2].setFromCoplanarPoints(vecFarDownRight, vecFarDownLeft, vecDownLeft)\n      planes[3].setFromCoplanarPoints(vecFarDownLeft, vecFarTopLeft, vecTopLeft)\n      planes[4].setFromCoplanarPoints(vecTopRight, vecDownRight, vecDownLeft)\n      planes[5].setFromCoplanarPoints(vecFarDownRight, vecFarTopRight, vecFarTopLeft)\n      planes[5].normal.multiplyScalar(-1)\n    } else {\n      console.error('THREE.SelectionBox: Unsupported camera type.')\n    }\n  }\n\n  searchChildInFrustum(frustum, object) {\n    if (object.isMesh || object.isLine || object.isPoints) {\n      if (object.material !== undefined) {\n        if (object.geometry.boundingSphere === null) object.geometry.computeBoundingSphere()\n\n        center.copy(object.geometry.boundingSphere.center)\n\n        center.applyMatrix4(object.matrixWorld)\n\n        if (frustum.containsPoint(center)) {\n          this.collection.push(object)\n        }\n      }\n    }\n\n    if (object.children.length > 0) {\n      for (let x = 0; x < object.children.length; x++) {\n        this.searchChildInFrustum(frustum, object.children[x])\n      }\n    }\n  }\n}\n\nexport { SelectionBox 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