public-fuse/src/core/box/object/TouchEdge.js

import * as THREE from "three";
import { Line2 } from "three/examples/jsm/lines/Line2.js";
import { LineGeometry } from "three/examples/jsm/lines/LineGeometry.js";

export default class TouchEdge extends THREE.Group {
  constructor(positions, matLine) {
    super();
    positions.forEach((i, j) => {
      //top left bottom right
      const geometry = new LineGeometry();
      geometry.setPositions(i);

      const line = new Line2(geometry, matLine);
      line.scale.set(1, 1, 1);
      line.position.y += 0.5;
      line.name = j;
      line.visible = false;
      line.x = i[0];
      line.y = i[2];
      this.add(line);
    });
    // console.log(this);
  }
}