awv3/plugins/sketcher/graphics/arc.js

⚡ AWV3 embedded CAD

import * as THREE from 'three';
import { getArcAngles } from '../geomutils';
import BaseGraphics from './base';
import RingGeometry from '../../../three/ringgeometry';

const material = new THREE.MeshBasicMaterial({
    color: 0x6d67bd,
    side: THREE.DoubleSide,
    polygonOffset: true,
    polygonOffsetFactor: -2,
    polygonOffsetUnits: -10,
});
const segments = 32;

export default class Arc extends BaseGraphics {
    constructor() {
        super();
        const materialClone = material.clone();
        this.localMesh = new THREE.Mesh(new RingGeometry(segments), materialClone);
        this.localMesh.type = 'SketcherMesh';
        this.localMesh.material.meta = {};
        this.add(this.localMesh);
    }

    updateWithAngles(center, radius, startAngle, endAngle, scale) {
        this.localMesh.geometry.updateParameters({
            innerRadius: radius - scale * 0.5,
            outerRadius: radius + scale * 0.5,
            thetaStart: startAngle,
            thetaLength: endAngle - startAngle,
        });
        this.localMesh.position.copy(center);
    }

    updateFromGeomParams(geomParams) {
        super.updateFromGeomParams(geomParams);
        const angleParams = getArcAngles(geomParams);
        const radius = geomParams.radius === undefined ? angleParams.radius : geomParams.radius;
        this.updateWithAngles(geomParams.center, radius, angleParams.start, angleParams.end, geomParams.scale);
        this.updateMetaBox();
    }
}