How to achieve vtkjs convert stl

[CHONGE]

Feature Request

HttpDataAccessHelper.fetchBinary( ${__BASE_PATH__}/data/StanfordOil.vtkjs, {} ).then((zipContent) => { const dataAccessHelper = DataAccessHelper.get('zip', { zipContent, callback: (zip) => { // 读取自己数据 // writerReader.parseAsArrayBuffer(zip); // maps.byteLength = maps.buffer.byteLength; const sceneImporter = vtkHttpSceneLoader.newInstance({ renderer, dataAccessHelper, });

  sceneImporter.setUrl('index.json');
  sceneImporter.onReady(() => {
    console.log(sceneImporter.getScene());
    sceneImporter.getScene()[0].actor.setVisibility(false);
    const source = sceneImporter.getScene()[0].source;
    cutter.setInputConnection(source.getOutputPort());
    cubeMapper.setInputConnection(source.getOutputPort());
    renderer.resetCamera();
    updatePlaneFunction();
  });
  const blob = new Blob([zipContent],{type:'application/octet-steam' });
  const a = window.document.createElement('a');
  a.href = window.URL.createObjectURL(blob, {
    type: 'application/octet-steam',
  });
  a.download = 'test.stl';
  a.text = 'Download';
  a.style.position = 'absolute';
  a.style.left = '50%';
  a.style.bottom = '10px';
  document.body.appendChild(a);
  a.style.background = 'white';
  a.style.padding = '5px';
},

}); });

Motivation and Detailed Description

The exported stl file format is incorrect,Ask for help, thanks

[daker]

hello, this is not the correct way to export to STL format, you need to use STLWriter