ami.js/src/helpers/helpers.border.js

<p align="center"> <img src="https://cloud.githubusercontent.com/assets/214063/23213764/78ade038-f90c-11e6-8208-4fcade5f3832.png" width="60%"> </p>

/**
 * @module helpers/border
 */
export default class HelpersBorder extends THREE.Object3D {
  constructor(helpersSlice) {
    //
    super();

    this._helpersSlice = helpersSlice;

    this._visible = true;
    this._color = 0xff0000;
    this._material = null;
    this._geometry = null;
    this._mesh = null;

    this._create();
  }

  set helpersSlice(helpersSlice) {
    this._helpersSlice = helpersSlice;
    this._update();
  }

  get helpersSlice() {
    return this._helpersSlice;
  }

  set visible(visible) {
    this._visible = visible;
    if (this._mesh) {
      this._mesh.visible = this._visible;
    }
  }

  get visible() {
    return this._visible;
  }

  set color(color) {
    this._color = color;
    if (this._material) {
      this._material.color.set(this._color);
    }
  }

  get color() {
    return this._color;
  }

  _create() {
    if (!this._material) {
      this._material = new THREE.LineBasicMaterial({
        color: this._color,
        linewidth: 1,
      });
    }

    //
    if (!this._helpersSlice.geometry.vertices) {
      return;
    }

    this._geometry = new THREE.Geometry();
    for (let i = 0; i < this._helpersSlice.geometry.vertices.length; i++) {
      this._geometry.vertices.push(this._helpersSlice.geometry.vertices[i]);
    }
    this._geometry.vertices.push(this._helpersSlice.geometry.vertices[0]);

    this._mesh = new THREE.Line(this._geometry, this._material);
    if (this._helpersSlice.aabbSpace === 'IJK') {
      this._mesh.applyMatrix(this._helpersSlice.stack.ijk2LPS);
    }
    this._mesh.visible = this._visible;

    // and add it!
    this.add(this._mesh);
  }

  _update() {
    // update slice
    if (this._mesh) {
      this.remove(this._mesh);
      this._mesh.geometry.dispose();
      this._mesh = null;
    }

    this._create();
  }

  dispose() {
    this._mesh.material.dispose();
    this._mesh.material = null;
    this._geometry.dispose();
    this._geometry = null;
    this._material.dispose();
    this._material = null;
  }
}