text: import { babylonViewer } from './babylon/babylonViewer';
  class Main {
  
      constructor() {
          this.TAG = 'Main';
          this.init();
      }
  
      init() {
          // initialize singleton 3d viewer
          console.log(this.TAG, 'init babylon');
          babylonViewer.init();
          babylonViewer.show();
      }
  
      static printGraph() {
  
      }
  
      static loadModel(root, fileName){
          babylonViewer.loadModel(root, fileName);
      }
  
      static usePerspective(val) {
          babylonViewer.usePerspective(val);
      }
  
      static resetView() {
          babylonViewer.resetView();
      }
      
      static clearWorld() {
          babylonViewer.clearScene();
      }
      
      static shaderDefault() {
          babylonViewer.useDefaultShader();
      }
      static shaderXray() {
          babylonViewer.useXrayShader();
      }
  }
  
  export default Main;
  