threepipe
Version:
A 3D viewer framework built on top of three.js in TypeScript with a focus on quality rendering, modularity and extensibility.
37 lines • 1.76 kB
JavaScript
import { LineMaterial2 } from '../../core/material/LineMaterial2';
import { Vector2 } from 'three';
import { LineSegmentsGeometry } from 'three/examples/jsm/lines/LineSegmentsGeometry.js';
import { LineSegments2 } from 'three/examples/jsm/lines/LineSegments2.js';
import { Box3B } from '../math/Box3B';
import { SelectionWidget } from './SelectionWidget';
export class BoxSelectionWidget extends SelectionWidget {
constructor() {
super();
const matLine = new LineMaterial2({
color: '#ff2222', transparent: true, opacity: 0.9,
linewidth: 5, // in pixels
resolution: new Vector2(1024, 1024), // to be set by renderer, eventually
dashed: false,
toneMapped: false,
});
this.lineMaterial = matLine;
const ls = new LineSegmentsGeometry();
ls.setPositions([1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 1].map(v => v - 0.5));
const wireframe = new LineSegments2(ls, matLine);
wireframe.computeLineDistances();
wireframe.scale.set(1, 1, 1);
wireframe.visible = true;
this.add(wireframe);
}
_updater() {
super._updater();
const selected = this.object;
if (selected) {
const bbox = new Box3B().expandByObject(selected, false);
// const scale = bbox.getBoundingSphere(new Sphere()).radius
bbox.getSize(this.scale).multiplyScalar(this.boundingScaleMultiplier).clampScalar(0.1, 100);
this.setVisible(true);
}
}
}
//# sourceMappingURL=BoxSelectionWidget.js.map