ReadRectilinearGrid
VTKExamples/CSharp/IO/ReadRectilinearGrid
Description¶
This example reads a rectilinear grid (.vtr) file. An example file can be found at VTKData/Data/cth.vtr
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
Code¶
ReadRectilinearGrid.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 { ReadRectilinearGrid(); } catch(Exception ex) { MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK); } } private void ReadRectilinearGrid() { // 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\cth.vtr"); // reader vtkXMLRectilinearGridReader reader = vtkXMLRectilinearGridReader.New(); 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 //vtkRectilinearGridGeometryFilter geometryFilter = vtkRectilinearGridGeometryFilter.New(); //geometryFilter.SetInputConnection(reader.GetOutputPort()); //geometryFilter.Update(); // Visualize // mapper vtkDataSetMapper mapper = vtkDataSetMapper.New(); //mapper.SetInputConnection(geometryFilter.GetOutputPort()); 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; // renderer 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); } } }