ReadOBJ
VTKExamples/CSharp/IO/ReadOBJ
Description¶
This example demonstrates how to read a Wavefront OBJ file. The result is displayed.
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¶
ReadOBJ.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 { ReadOBJ(); } catch(Exception ex) { MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK); } } private void ReadOBJ() { // 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(); // caution: vtkdata-5.8.0\Data\mni-surface-mesh.obj is no valid obj file! //string filePath = System.IO.Path.Combine(root, @"Data\mni-surface-mesh.obj"); string filePath = System.IO.Path.Combine(root, @"Data\ViewPoint\cow.obj"); vtkOBJReader reader = vtkOBJReader.New(); if(!File.Exists(filePath)) { MessageBox.Show("Cannot read file \"" + filePath + "\"", "Error", MessageBoxButtons.OK); return; } reader.SetFileName(filePath); reader.Update(); // Visualize vtkPolyDataMapper mapper = vtkPolyDataMapper.New(); mapper.SetInputConnection(reader.GetOutputPort()); vtkActor actor = vtkActor.New(); actor.SetMapper(mapper); // get a reference to the renderwindow of our renderWindowControl1 vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow; // renderer vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer(); // set background color renderer.SetBackground(0.3, 0.6, 0.3); // add our actor to the renderer renderer.AddActor(actor); renderWindow.Render(); } } }