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The resulting bbox is not 100% precise, but\r\n * it's fast, and should suffice for general use cases such as camera zooming or general boundary determination.\r\n */\r\nexport class FragmentBoundingBox extends Component {\r\n    constructor(components) {\r\n        super(components);\r\n        /** {@link Component.enabled} */\r\n        this.enabled = true;\r\n        /** {@link Disposable.onDisposed} */\r\n        this.onDisposed = new Event();\r\n        this._meshes = [];\r\n        this.components.tools.add(FragmentBoundingBox.uuid, this);\r\n        this._absoluteMin = FragmentBoundingBox.newBound(true);\r\n        this._absoluteMax = FragmentBoundingBox.newBound(false);\r\n    }\r\n    static getDimensions(bbox) {\r\n        const { min, max } = bbox;\r\n        const width = Math.abs(max.x - min.x);\r\n        const height = Math.abs(max.y - min.y);\r\n        const depth = Math.abs(max.z - min.z);\r\n        const center = new THREE.Vector3();\r\n        center.subVectors(max, min).divideScalar(2).add(min);\r\n        return { width, height, depth, center };\r\n    }\r\n    static newBound(positive) {\r\n        const factor = positive ? 1 : -1;\r\n        return new THREE.Vector3(factor * Number.MAX_VALUE, factor * Number.MAX_VALUE, factor * Number.MAX_VALUE);\r\n    }\r\n    static getBounds(points, min, max) {\r\n        const maxPoint = max || this.newBound(false);\r\n        const minPoint = min || this.newBound(true);\r\n        for (const point of points) {\r\n            if (point.x < minPoint.x)\r\n                minPoint.x = point.x;\r\n            if (point.y < minPoint.y)\r\n                minPoint.y = point.y;\r\n            if (point.z < minPoint.z)\r\n                minPoint.z = point.z;\r\n            if (point.x > maxPoint.x)\r\n                maxPoint.x = point.x;\r\n            if (point.y > maxPoint.y)\r\n                maxPoint.y = point.y;\r\n            if (point.z > maxPoint.z)\r\n                maxPoint.z = point.z;\r\n        }\r\n        return new THREE.Box3(min, max);\r\n    }\r\n    /** {@link Disposable.dispose} */\r\n    async dispose() {\r\n        const disposer = this.components.tools.get(Disposer);\r\n        for (const mesh of this._meshes) {\r\n            disposer.destroy(mesh);\r\n        }\r\n        this._meshes = [];\r\n        await this.onDisposed.trigger(FragmentBoundingBox.uuid);\r\n        this.onDisposed.reset();\r\n    }\r\n    get() {\r\n        const min = this._absoluteMin.clone();\r\n        const max = this._absoluteMax.clone();\r\n        return new THREE.Box3(min, max);\r\n    }\r\n    getSphere() {\r\n        const min = this._absoluteMin.clone();\r\n        const max = this._absoluteMax.clone();\r\n        const dx = Math.abs((max.x - min.x) / 2);\r\n        const dy = Math.abs((max.y - min.y) / 2);\r\n        const dz = Math.abs((max.z - min.z) / 2);\r\n        const center = new THREE.Vector3(min.x + dx, min.y + dy, min.z + dz);\r\n        const radius = center.distanceTo(min);\r\n        return new THREE.Sphere(center, radius);\r\n    }\r\n    getMesh() {\r\n        const bbox = new THREE.Box3(this._absoluteMin, this._absoluteMax);\r\n        const dimensions = FragmentBoundingBox.getDimensions(bbox);\r\n        const { width, height, depth, center } = dimensions;\r\n        const box = new THREE.BoxGeometry(width, height, depth);\r\n        const mesh = new THREE.Mesh(box);\r\n        this._meshes.push(mesh);\r\n        mesh.position.copy(center);\r\n        return mesh;\r\n    }\r\n    reset() {\r\n        this._absoluteMin = FragmentBoundingBox.newBound(true);\r\n        this._absoluteMax = FragmentBoundingBox.newBound(false);\r\n    }\r\n    add(group) {\r\n        for (const frag of group.items) {\r\n            this.addMesh(frag.mesh);\r\n        }\r\n    }\r\n    addMesh(mesh) {\r\n        if (!mesh.geometry.index) {\r\n            return;\r\n        }\r\n        const bbox = FragmentBoundingBox.getFragmentBounds(mesh);\r\n        mesh.updateMatrix();\r\n        const meshTransform = mesh.matrix;\r\n        const instanceTransform = new THREE.Matrix4();\r\n        const isInstanced = mesh instanceof THREE.InstancedMesh;\r\n        const count = isInstanced ? mesh.count : 1;\r\n        for (let i = 0; i < count; i++) {\r\n            const min = bbox.min.clone();\r\n            const max = bbox.max.clone();\r\n            if (isInstanced) {\r\n                mesh.getMatrixAt(i, instanceTransform);\r\n                min.applyMatrix4(instanceTransform);\r\n                max.applyMatrix4(instanceTransform);\r\n            }\r\n            min.applyMatrix4(meshTransform);\r\n            max.applyMatrix4(meshTransform);\r\n            if (min.x < this._absoluteMin.x)\r\n                this._absoluteMin.x = min.x;\r\n            if (min.y < this._absoluteMin.y)\r\n                this._absoluteMin.y = min.y;\r\n            if (min.z < this._absoluteMin.z)\r\n                this._absoluteMin.z = min.z;\r\n            if (min.x > this._absoluteMax.x)\r\n                this._absoluteMax.x = min.x;\r\n            if (min.y > this._absoluteMax.y)\r\n                this._absoluteMax.y = min.y;\r\n            if (min.z > this._absoluteMax.z)\r\n                this._absoluteMax.z = min.z;\r\n            if (max.x > this._absoluteMax.x)\r\n                this._absoluteMax.x = max.x;\r\n            if (max.y > this._absoluteMax.y)\r\n                this._absoluteMax.y = max.y;\r\n            if (max.z > this._absoluteMax.z)\r\n                this._absoluteMax.z = max.z;\r\n            if (max.x < this._absoluteMin.x)\r\n                this._absoluteMin.x = max.x;\r\n            if (max.y < this._absoluteMin.y)\r\n                this._absoluteMin.y = max.y;\r\n            if (max.z < this._absoluteMin.z)\r\n                this._absoluteMin.z = max.z;\r\n        }\r\n    }\r\n    static getFragmentBounds(mesh) {\r\n        const position = mesh.geometry.attributes.position;\r\n        const maxNum = Number.MAX_VALUE;\r\n        const minNum = -maxNum;\r\n        const min = new THREE.Vector3(maxNum, maxNum, maxNum);\r\n        const max = new THREE.Vector3(minNum, minNum, minNum);\r\n        if (!mesh.geometry.index) {\r\n            throw new Error(\"Geometry must be indexed!\");\r\n        }\r\n        const indices = Array.from(mesh.geometry.index.array);\r\n        for (const index of indices) {\r\n            const x = position.getX(index);\r\n            const y = position.getY(index);\r\n            const z = position.getZ(index);\r\n            if (x < min.x)\r\n                min.x = x;\r\n            if (y < min.y)\r\n                min.y = y;\r\n            if (z < min.z)\r\n                min.z = z;\r\n            if (x > max.x)\r\n                max.x = x;\r\n            if (y > max.y)\r\n                max.y = y;\r\n            if (z > max.z)\r\n                max.z = z;\r\n        }\r\n        return new THREE.Box3(min, max);\r\n    }\r\n}\r\nFragmentBoundingBox.uuid = \"d1444724-dba6-4cdd-a0c7-68ee1450d166\";\r\nToolComponent.libraryUUIDs.add(FragmentBoundingBox.uuid);\r\n//# sourceMappingURL=index.js.map"],"names":["FragmentBoundingBox","constructor","components","super","this","enabled","onDisposed","_meshes","tools","add","uuid","_absoluteMin","newBound","_absoluteMax","static","bbox","min","max","width","Math","abs","x","height","y","depth","z","center","subVectors","divideScalar","positive","factor","Number","MAX_VALUE","points","maxPoint","minPoint","point","async","disposer","get","mesh","destroy","trigger","reset","clone","getSphere","dx","dy","dz","radius","distanceTo","getMesh","dimensions","getDimensions","box","push","position","copy","group","frag","items","addMesh","geometry","index","getFragmentBounds","updateMatrix","meshTransform","matrix","instanceTransform","isInstanced","count","i","getMatrixAt","applyMatrix4","attributes","maxNum","minNum","Error","indices","Array","from","array","getX","getY","getZ"],"sourceRoot":""}