awv3/plugins/sketcher/graphics/sketch.js

⚡ AWV3 embedded CAD

import * as THREE from 'three';
import InfinitePlane from '../../../three/infiniteplane';
import BaseGraphics from './base';

const LinesCount = 1e3;

export default class Sketch extends BaseGraphics {
    constructor() {
        super();
        this.measurable = false;
        this.step = undefined;
        this.grid = undefined;
        this.axes = undefined;

        this.plane = new InfinitePlane();
        this.plane.plane.normal.set(0, 0, 1);
        this.add(this.plane);
    }

    update(newStep) {
        if (newStep !== this.step) {
            this.step = newStep;
            if (this.grid) {
                this.remove(this.grid);
                this.grid.geometry.dispose();
            }
            this.grid = new THREE.GridHelper(newStep * LinesCount, LinesCount, 0x9f9f9f, 0xcfcfcf);
            this.grid.quaternion.setFromUnitVectors(new THREE.Vector3(0, 0, 1), new THREE.Vector3(0, 1, 0));
            this.grid.interactive = false;
            this.add(this.grid);

            if (this.axes) {
                this.remove(this.axes);
                this.axes.geometry.dispose();
            }
            this.axes = new THREE.AxisHelper(newStep * 5);
            this.axes.position.z = 1e-3 * newStep;
            this.axes.interactive = false;
            this.add(this.axes);
        }
    }

    updateFromSketcherAndId(sketcher, id) {
        this.update(sketcher.gridStep);
    }
}