h3n3/yet-another-cad-viewer
1
0
Fork 0
mirror of https://github.com/yeicor-3d/yet-another-cad-viewer.git synced 2025-12-22 07:24:26 +01:00
Code Issues Packages Projects Releases Wiki Activity

add complete helpers support

Browse Source
This commit is contained in:
Yeicor
2024-02-25 20:07:54 +01:00
parent 878367638f
commit 16155e7db5
4 changed files with 154 additions and 58 deletions
Download Patch File Download Diff File Expand all files Collapse all files

61
src/misc/scene.ts
View File

@@ -1,8 +1,8 @@
import {Ref, ShallowRef} from 'vue';
import {Document} from '@gltf-transform/core';
import {mergeFinalize, mergePartial, removeModel, toBuffer} from "./gltf";
import {newAxes} from "./helpers";
import { Matrix4, Vector3 } from 'three';
import {extrasNameKey, mergeFinalize, mergePartial, removeModel, toBuffer} from "./gltf";
import {newAxes, newGridBox} from "./helpers";
import {Matrix4, Vector3} from 'three';
/** This class helps manage SceneManagerData. All methods are static to support reactivity... */
export class SceneMgr {
@@ -13,23 +13,49 @@ export class SceneMgr {
// Start merging into the current document, replacing or adding as needed
document.value = await mergePartial(url, name, document.value);
// Display the final fully loaded model
await this.showCurrentDoc(sceneUrl, document);
if (name !== "__helpers") {
// Reload the helpers to fit the new model
await this.reloadHelpers(sceneUrl, document);
} else {
// Display the final fully loaded model
await this.showCurrentDoc(sceneUrl, document);
}
console.log("Model", name, "loaded in", performance.now() - loadStart, "ms");
if (name !== "__helpers") {
// Add a helper axes to the scene
let helpersDoc = new Document();
// TODO: Get bounding box of the model and use it to set the size of the helpers
newAxes(helpersDoc, new Vector3(10, 10, 10), new Matrix4());
let helpersUrl = URL.createObjectURL(new Blob([await toBuffer(helpersDoc)]));
await SceneMgr.loadModel(sceneUrl, document, "__helpers", helpersUrl);
}
return document;
}
private static async reloadHelpers(sceneUrl: Ref<string>, document: ShallowRef<Document>) {
// Get bounding box of the model and use it to set the size of the helpers
let bbMin: number[] = [1e6, 1e6, 1e6];
let bbMax: number[] = [-1e6, -1e6, -1e6];
document.value.getRoot().listNodes().forEach(node => {
if ((node.getExtras()[extrasNameKey] ?? "__helpers") === "__helpers") return;
let transform = new Matrix4(...node.getWorldMatrix());
for (let prim of node.getMesh()?.listPrimitives() ?? []) {
let accessor = prim.getAttribute('POSITION');
if (!accessor) continue;
let objMin = new Vector3(...accessor.getMin([0, 0, 0]))
.applyMatrix4(transform);
let objMax = new Vector3(...accessor.getMax([0, 0, 0]))
.applyMatrix4(transform);
bbMin = bbMin.map((v, i) => Math.min(v, objMin.getComponent(i)));
bbMax = bbMax.map((v, i) => Math.max(v, objMax.getComponent(i)));
}
});
let bbSize = new Vector3().fromArray(bbMax).sub(new Vector3().fromArray(bbMin));
let bbCenter = new Vector3().fromArray(bbMin).add(bbSize.clone().multiplyScalar(0.5));
let bbTransform = new Matrix4().makeTranslation(bbCenter.x, bbCenter.y, bbCenter.z);
// Create the helper axes and grid box
let helpersDoc = new Document();
newAxes(helpersDoc, bbSize.clone().multiplyScalar(0.5), bbTransform);
newGridBox(helpersDoc, bbSize, bbTransform);
let helpersUrl = URL.createObjectURL(new Blob([await toBuffer(helpersDoc)]));
await SceneMgr.loadModel(sceneUrl, document, "__helpers", helpersUrl);
}
/** Removes a model from the viewer */
static async removeModel(sceneUrl: Ref<string>, document: ShallowRef<Document>, name: string) {
let loadStart = performance.now();
@@ -37,10 +63,11 @@ export class SceneMgr {
// Remove the model from the document
document.value = await removeModel(name, document.value)
// Display the final fully loaded model
await this.showCurrentDoc(sceneUrl, document);
console.log("Model", name, "removed in", performance.now() - loadStart, "ms");
// Reload the helpers to fit the new model (will also show the document)
await this.reloadHelpers(sceneUrl, document);
return document;
}