awv3/plugins/dimension/graphics/linear.js

⚡ AWV3 embedded CAD

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

export default class Linear extends BaseGraphics {
    constructor(...args) {
        super(...args, 4, 0, 2);
    }

    updateFromState(state, ...args) {
        const [start, end, dim] = ['startPt', 'endPt', 'dimPt'].map(x => new THREE.Vector3().fromArray(state.members[x].value));
        var dir = new THREE.Vector3(Math.cos(state.members.angle.value), Math.sin(state.members.angle.value), 0);
        const [startFoot, endFoot] = [start, end].map(x => x.clone().sub(dim).projectOnVector(dir).add(dim));
        if (endFoot.clone().sub(startFoot).dot(dir) < 0)
            dir.negate();
        const outside = dim.clone().sub(startFoot).dot(dim.clone().sub(endFoot)) > 0;
        this.updateLine(0, start, startFoot);
        this.updateLine(1, startFoot, dim);
        this.updateLine(2, dim, endFoot);
        this.updateLine(3, endFoot, end);
        this.updateArrow(0, startFoot, dir.clone().multiplyScalar(outside ? 1 : -1));
        this.updateArrow(1,   endFoot, dir.clone().multiplyScalar(outside ? -1 : 1));
        super.updateFromState(state, ...args);
    }
}