@polygonjs/polygonjs/dist/src/engine/nodes/sop/CSGLine.js

node-based WebGL 3D engine https://polygonjs.com

"use strict";
import { CSGSopNode } from "./_BaseCSG";
import { NodeParamsConfig, ParamConfig } from "../utils/params/ParamsConfig";
import { SopType } from "../../poly/registers/nodes/types/Sop";
import { primitives } from "@jscad/modeling";
import { vector2ToCsgVec2 } from "../../../core/geometry/modules/csg/CsgVecToVector";
import { Vector2 } from "three";
const { line } = primitives;
const _lastPt = new Vector2();
const _pos = new Vector2();
class CSGLineSopParamsConfig extends NodeParamsConfig {
  constructor() {
    super(...arguments);
    /** @param length */
    this.length = ParamConfig.FLOAT(1, { range: [0, 10] });
    /** @param points count */
    this.pointsCount = ParamConfig.INTEGER(2, {
      range: [2, 128],
      rangeLocked: [true, false]
    });
    /** @param origin */
    this.origin = ParamConfig.VECTOR2([0, 0]);
    /** @param direction */
    this.direction = ParamConfig.VECTOR2([1, 0]);
  }
}
const ParamsConfig = new CSGLineSopParamsConfig();
export class CSGLineSopNode extends CSGSopNode {
  constructor() {
    super(...arguments);
    this.paramsConfig = ParamsConfig;
  }
  static type() {
    return SopType.CSG_LINE;
  }
  cook(inputCoreGroups) {
    const pointsCount = this.pv.pointsCount;
    const vec2s = new Array(pointsCount);
    _lastPt.copy(this.pv.direction).normalize().multiplyScalar(this.pv.length);
    for (let i = 0; i < pointsCount; i++) {
      const i_n = i / (pointsCount - 1);
      _pos.copy(_lastPt).multiplyScalar(i_n);
      _pos.add(this.pv.origin);
      const vec2 = [0, 0];
      vec2s[i] = vec2;
      vector2ToCsgVec2(_pos, vec2);
    }
    const geo = line(vec2s);
    this.setCSGGeometry(geo);
  }
}