@kitware/vtk.js/IO/XML/XMLImageDataReader.js

Visualization Toolkit for the Web

import vtkXMLReader from './XMLReader.js';
import { m as macro } from '../../macros2.js';
import vtkImageData from '../../Common/DataModel/ImageData.js';

// ----------------------------------------------------------------------------
// vtkXMLImageDataReader methods
// ----------------------------------------------------------------------------

function vtkXMLImageDataReader(publicAPI, model) {
  // Set our className
  model.classHierarchy.push('vtkXMLImageDataReader');
  publicAPI.parseXML = (rootElem, type, compressor, byteOrder, headerType) => {
    const imageDataElem = rootElem.getElementsByTagName(model.dataType)[0];
    const origin = imageDataElem.getAttribute('Origin').split(' ').map(t => Number(t));
    const spacing = imageDataElem.getAttribute('Spacing').split(' ').map(t => Number(t));
    const direction = imageDataElem.getAttribute('Direction')?.split(' ').map(t => Number(t));
    const pieces = imageDataElem.getElementsByTagName('Piece');
    const nbPieces = pieces.length;
    for (let outputIndex = 0; outputIndex < nbPieces; outputIndex++) {
      // Create image data
      const piece = pieces[outputIndex];
      const extent = piece.getAttribute('Extent').split(' ').map(t => Number(t));
      const imageData = vtkImageData.newInstance({
        origin,
        spacing,
        direction,
        extent
      });

      // Fill data
      vtkXMLReader.processFieldData(imageData.getNumberOfPoints(), piece.getElementsByTagName('PointData')[0], imageData.getPointData(), compressor, byteOrder, headerType, model.binaryBuffer);
      vtkXMLReader.processFieldData(imageData.getNumberOfCells(), piece.getElementsByTagName('CellData')[0], imageData.getCellData(), compressor, byteOrder, headerType, model.binaryBuffer);

      // Add new output
      model.output[outputIndex] = imageData;
    }
  };
}

// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------

const DEFAULT_VALUES = {
  dataType: 'ImageData'
};

// ----------------------------------------------------------------------------

function extend(publicAPI, model) {
  let initialValues = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
  Object.assign(model, DEFAULT_VALUES, initialValues);
  vtkXMLReader.extend(publicAPI, model, initialValues);
  vtkXMLImageDataReader(publicAPI, model);
}

// ----------------------------------------------------------------------------

const newInstance = macro.newInstance(extend, 'vtkXMLImageDataReader');

// ----------------------------------------------------------------------------

var vtkXMLImageDataReader$1 = {
  newInstance,
  extend
};

export { vtkXMLImageDataReader$1 as default, extend, newInstance };