paraview-glance
Version:
Web application for Visualizing Scientific and Medical datasets
51 lines (42 loc) • 1.48 kB
JavaScript
;
const path = require('path');
const getFileExtension = require('./getFileExtension.js');
const extensionToMeshIO = require('./extensionToMeshIO.js');
const writeImageLocalFile = require('./writeImageLocalFile.js');
const writeMeshLocalFileSync = require('./writeMeshLocalFileSync.js');
/**
* Write an image or mesh to a file on the local filesystem in Node.js.
*
* @param: useCompression compression the pixel data when possible
* @param: imageOrMesh itk.Image or itk.Mesh instance to write
* @param: filePath path to the file on the local filesystem.
*
* @return empty Promise
*/
const writeLocalFile = (useCompression, imageOrMesh, filePath) => {
const absoluteFilePath = path.resolve(filePath);
const extension = getFileExtension(absoluteFilePath);
return new Promise(function (resolve, reject) {
try {
const isMesh = extensionToMeshIO.has(extension);
if (isMesh) {
try {
writeMeshLocalFileSync(useCompression, imageOrMesh, filePath);
resolve(null);
} catch (err) {
// Was a .vtk image file? Continue to write as an image.
writeImageLocalFile(useCompression, imageOrMesh, filePath).then(() => {
resolve(null);
});
}
} else {
writeImageLocalFile(useCompression, imageOrMesh, filePath).then(() => {
resolve(null);
});
}
} catch (err) {
reject(err);
}
});
};
module.exports = writeLocalFile;