ReadUnknownTypeXMLFile
VTKExamples/CSharp/IO/ReadUnknownTypeXMLFile
Description¶
This examples reads either a vtu (unstructured grid) or vtp (polydata) file and displays it to the screen.
A tutorial on how to setup a Windows Forms Application utilizing ActiViz.NET can be found here: Setup a Windows Forms Application to use ActiViz.NET
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Code¶
ReadUnknownTypeXMLFile.cs
using System; using System.Collections.Generic; using System.ComponentModel; using System.Windows.Forms; using System.Diagnostics; using System.IO; using Kitware.VTK; namespace ActiViz.Examples { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void renderWindowControl1_Load(object sender, EventArgs e) { try { ReadUnknownTypeXMLFile(); } catch(Exception ex) { MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK); } } private void ReadUnknownTypeXMLFile() { // Path to vtk data must be set as an environment variable // VTK_DATA_ROOT = "C:\VTK\vtkdata-5.8.0" vtkTesting test = vtkTesting.New(); string root = test.GetDataRoot(); string filePath = System.IO.Path.Combine(root, @"Data\quadraticTetra01.vtu"); //string filePath = System.IO.Path.Combine(root, @"Data\SyntheticPolyline.vtp"); // reader // Read all the data from the file vtkXMLGenericDataObjectReader reader = vtkXMLGenericDataObjectReader.New(); // caution: you cannot use CanReadFile with the generic reader //if(reader.CanReadFile(filePath) == 0) { // MessageBox.Show("Cannot read file \"" + filePath + "\"", "Error", MessageBoxButtons.OK); // return; //} reader.SetFileName(filePath); reader.Update(); // here we read the file actually // All of the standard data types can be checked and obtained like this: if(vtkPolyData.SafeDownCast(reader.GetOutput()) != null) { Debug.WriteLine("File is a polydata"); } else if(vtkUnstructuredGrid.SafeDownCast(reader.GetOutput()) != null) { Debug.WriteLine("File is an unstructured grid"); } // mapper vtkDataSetMapper mapper = vtkDataSetMapper.New(); mapper.SetInputConnection(reader.GetOutputPort()); // actor vtkActor actor = vtkActor.New(); actor.SetMapper(mapper); //actor.GetProperty().SetRepresentationToWireframe(); // get a reference to the renderwindow of our renderWindowControl1 vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow; vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer(); // set background color renderer.SetBackground(0.2, 0.3, 0.4); // add our actor to the renderer renderer.AddActor(actor); } } }