Curvature
VTKExamples/CSharp/PolyData/Curvature
Description¶
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¶
Curvature.cs
using System; using System.Collections.Generic; using System.ComponentModel; using System.Windows.Forms; using System.Diagnostics; using Kitware.VTK; namespace ActiViz.Examples { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void renderWindowControl1_Load(object sender, EventArgs e) { try { Curvature(); } catch(Exception ex) { MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK); } } private void Curvature() { // 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(); // note: one should use a coarse surface mesh to achieve a good visual effect string filePath = System.IO.Path.Combine(root, @"Data\bunny.vtp"); // Create a polydata vtkXMLPolyDataReader reader = vtkXMLPolyDataReader.New(); reader.SetFileName(filePath); vtkCurvatures curvaturesFilter = vtkCurvatures.New(); curvaturesFilter.SetInputConnection(reader.GetOutputPort()); //curvaturesFilter.SetCurvatureTypeToGaussian(); //curvaturesFilter.SetCurvatureTypeToMean(); //curvaturesFilter.SetCurvatureTypeToMaximum(); curvaturesFilter.SetCurvatureTypeToMinimum(); // To inspect more closely, if required vtkXMLPolyDataWriter writer = vtkXMLPolyDataWriter.New(); writer.SetInputConnection(curvaturesFilter.GetOutputPort()); writer.SetFileName(System.IO.Path.Combine(root, @"Data\gauss.vtp")); writer.Write(); // Create a mapper and actor vtkPolyDataMapper mapper = vtkPolyDataMapper.New(); mapper.SetInputConnection(curvaturesFilter.GetOutputPort()); double[] range = curvaturesFilter.GetOutput().GetScalarRange(); mapper.SetScalarRange(range[0], range[1]); 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(0.0, 0.0, 0.0); // add our actor to the renderer renderer.AddActor(actor); } } }