jsketcher/web/app/3d/scene/viewer.js

import SceneSetup from 'scene/sceneSetup';

export default class Viewer {
  
  constructor(bus, container) {
    this.bus = bus;
    this.sceneSetup = new SceneSetup(container);
  }
  
  render() {
    this.sceneSetup.render();  
  }

  lookAt(obj) {
    this.sceneSetup.lookAt(obj);
  }
  
  raycast(event, group) {
    return this.sceneSetup.raycast(event, group);
  }
  
  setCameraMode(mode) {
    if (mode === CAMERA_MODE.PERSPECTIVE) {
      
      this.sceneSetup.setCamera(this.sceneSetup.pCamera);
    } else {
      this.sceneSetup.setCamera(this.sceneSetup.oCamera);
    }
    this.bus.dispatch('scene_cameraMode', this.getCameraMode());
  }

  getCameraMode() {
    return this.sceneSetup.camera === this.sceneSetup.pCamera ? CAMERA_MODE.PERSPECTIVE : CAMERA_MODE.ORTHOGRAPHIC;
  }
  
  toggleCamera() {
    if (this.getCameraMode() === CAMERA_MODE.PERSPECTIVE) {
      this.setCameraMode(CAMERA_MODE.ORTHOGRAPHIC);
    } else {
      this.setCameraMode(CAMERA_MODE.PERSPECTIVE);
    }
  }
}

export const CAMERA_MODE = {
  ORTHOGRAPHIC: 'ORTHOGRAPHIC',
  PERSPECTIVE: 'PERSPECTIVE'  
};