mirror of
https://github.com/yeicor-3d/yet-another-cad-viewer.git
synced 2025-12-19 22:24:17 +01:00
81 lines
3.3 KiB
Vue
81 lines
3.3 KiB
Vue
<script setup lang="ts">
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import {onMounted, onUpdated, ref} from "vue";
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import type {ModelScene} from "@google/model-viewer/lib/three-components/ModelScene";
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import * as OrientationGizmoRaw from "three-orientation-gizmo/src/OrientationGizmo";
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import type {ModelViewerElement} from '@google/model-viewer';
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// Optimized minimal dependencies from three
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import {Vector3} from "three/src/math/Vector3.js";
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import {Matrix4} from "three/src/math/Matrix4.js";
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(globalThis as any).THREE = {Vector3, Matrix4} as any // HACK: Required for the gizmo to work
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const OrientationGizmo = OrientationGizmoRaw.default;
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const props = defineProps<{ elem: ModelViewerElement | null, scene: ModelScene }>();
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function createGizmo(expectedParent: HTMLElement, scene: ModelScene): HTMLElement {
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// noinspection SpellCheckingInspection
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let gizmo = new OrientationGizmoRaw.default(scene.camera, {
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size: expectedParent.clientWidth,
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bubbleSizePrimary: expectedParent.clientWidth / 12,
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bubbleSizeSeconday: expectedParent.clientWidth / 14,
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fontSize: (expectedParent.clientWidth / 10) + "px"
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});
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// HACK: Swap axes to fake the CAD orientation
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for (let swap of [["y", "-z"], ["z", "-y"], ["z", "-z"]]) {
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let indexA = gizmo.bubbles.findIndex((bubble: any) => bubble.axis == swap[0])
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let indexB = gizmo.bubbles.findIndex((bubble: any) => bubble.axis == swap[1])
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let dirA = gizmo.bubbles[indexA].direction.clone();
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let dirB = gizmo.bubbles[indexB].direction.clone();
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gizmo.bubbles[indexA].direction.copy(dirB);
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gizmo.bubbles[indexB].direction.copy(dirA);
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}
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// Append and listen for events
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gizmo.onAxisSelected = (axis: { direction: { x: any; y: any; z: any; }; }) => {
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let lookFrom = scene.getCamera().position.clone();
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let lookAt = scene.getTarget().clone().add(scene.target.position);
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let magnitude = lookFrom.clone().sub(lookAt).length()
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let direction = new Vector3(axis.direction.x, axis.direction.y, axis.direction.z);
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let newLookFrom = lookAt.clone().add(direction.clone().multiplyScalar(magnitude));
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//console.log("New camera position", newLookFrom)
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scene.getCamera().position.copy(newLookFrom);
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scene.getCamera().lookAt(lookAt);
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if ((scene as any).__perspectiveCamera) { // HACK: Make the hacky ortho also work
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(scene as any).__perspectiveCamera.position.copy(newLookFrom);
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(scene as any).__perspectiveCamera.lookAt(lookAt);
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}
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scene.queueRender();
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requestIdleCallback(() => props.elem?.dispatchEvent(
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new CustomEvent('camera-change', {detail: {source: 'none'}})), {timeout: 100})
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}
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return gizmo;
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}
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// Mount, unmount and listen for scene changes
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let container = ref<HTMLElement | null>(null);
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let gizmo: HTMLElement & { update: () => void }
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function updateGizmo() {
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if (gizmo.isConnected) {
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gizmo.update();
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requestIdleCallback(updateGizmo, {timeout: 250});
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}
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}
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let reinstall = () => {
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if(!container.value) return;
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if (gizmo) container.value.removeChild(gizmo);
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gizmo = createGizmo(container.value, props.scene as ModelScene) as typeof gizmo;
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container.value.appendChild(gizmo);
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requestIdleCallback(updateGizmo, {timeout: 250}); // Low priority updates
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}
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onMounted(reinstall)
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onUpdated(reinstall);
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// onUnmounted is not needed because the gizmo is removed when the container is removed
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</script>
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<template>
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<div ref="container" class="orientation-gizmo"/>
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</template> |