@thewtex/vtk.js-esm/IO/XML/XMLImageDataReader.js

Visualization Toolkit for the Web

import vtkXMLReader from './XMLReader.js';
import macro from '../../macro.js';
import vtkImageData from '../../Common/DataModel/ImageData.js';

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

function vtkXMLImageDataReader(publicAPI, model) {
  // Set our className
  model.classHierarchy.push('vtkXMLImageDataReader');

  publicAPI.parseXML = function (rootElem, type, compressor, byteOrder, headerType) {
    var imageDataElem = rootElem.getElementsByTagName(model.dataType)[0];
    var origin = imageDataElem.getAttribute('Origin').split(' ').map(function (t) {
      return Number(t);
    });
    var spacing = imageDataElem.getAttribute('Spacing').split(' ').map(function (t) {
      return Number(t);
    });
    var pieces = imageDataElem.getElementsByTagName('Piece');
    var nbPieces = pieces.length;

    for (var outputIndex = 0; outputIndex < nbPieces; outputIndex++) {
      // Create image data
      var piece = pieces[outputIndex];
      var extent = piece.getAttribute('Extent').split(' ').map(function (t) {
        return Number(t);
      });
      var imageData = vtkImageData.newInstance({
        origin: origin,
        spacing: spacing,
        extent: 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
// ----------------------------------------------------------------------------


var DEFAULT_VALUES = {
  dataType: 'ImageData'
}; // ----------------------------------------------------------------------------

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

var newInstance = macro.newInstance(extend, 'vtkXMLImageDataReader'); // ----------------------------------------------------------------------------

var vtkXMLImageDataReader$1 = {
  newInstance: newInstance,
  extend: extend
};

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