70 lines
2.3 KiB
JavaScript
70 lines
2.3 KiB
JavaScript
import { TextureLoader, Box3, Vector3, Group } from "three";
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function assignParams(mesh, params){
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['scale', 'rotation', 'position'].forEach(p=>params[p] && mesh[p].fromArray(params[p]));
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['visible', 'name', 'fontSize', 'color'].forEach(p=>{
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if (params[p]!==undefined) mesh[p] = params[p];
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});
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}
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function assignMaterial(mesh, params){
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if (params.name && params.material){
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//let mp = params.material.metalness ? new MeshStandardMaterial(params.material) : new MeshBasicMaterial(params.material)
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Object.assign(mesh.material, params.material)
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if (params.dm){
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var dm = new TextureLoader().setPath(params.path).load(params.dm);
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mesh.material.map = dm;
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}
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if (params.nm){
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mesh.material.normalMap = new TextureLoader().setPath(params.path).load(params.nm);
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}
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if (params.em) {
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mesh.material.emissiveMap = new TextureLoader().setPath(params.path).load(params.em);
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}
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//mesh.material = mp;
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mesh.material.needsUpdate = true;
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}
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}
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function getBoundingBox(object){
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return new Box3().setFromObject(object);
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}
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function getBoundingBoxSize(bb){
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return new Vector3(bb.max.x - bb.min.x, bb.max.y - bb.min.y, bb.max.z - bb.min.z);
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}
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function getBoundingBoxMaxLength(bb){
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let size = getBoundingBoxSize(bb)
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return Math.max(size.x, size.y, size.z)
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}
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function getBoundingBoxCenterPoint(bb, relativeTo){
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relativeTo = relativeTo || new Vector3(0,0,0)
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let size = getBoundingBoxSize(bb)
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return new Vector3(
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bb.min.x + (size.x)/2 - relativeTo.x,
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bb.min.y + (size.y)/2 - relativeTo.y,
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bb.min.z + (size.z)/2 - relativeTo.z
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)
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}
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function autoScale(object, mk = 1) {
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let bb = getBoundingBox(object);
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let k = getBoundingBoxMaxLength(bb);
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object.scale.multiplyScalar(mk / k);
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}
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function centerOrigin(object){
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let result = new Group();
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result.userData.bbox = getBoundingBox(object);
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let position = getBoundingBoxCenterPoint(result.userData.bbox, object.position).negate();
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object.position.copy(position)
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result.add(object);
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return result;
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}
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export {
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assignParams, assignMaterial, autoScale, centerOrigin,
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getBoundingBox, getBoundingBoxSize, getBoundingBoxMaxLength, getBoundingBoxCenterPoint
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} |