Point
VTKExamples/CSharp/GeometricObjects/Point
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¶
Point.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 { Point(); } catch(Exception ex) { MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK); } } private void Point() { // Create the geometry of the points (the coordinate) vtkPoints points = vtkPoints.New(); double[,] p = new double[,] { {1.0, 2.0, 3.0}, {3.0, 1.0, 2.0}, {2.0, 3.0, 1.0} }; // Create topology of the points (a vertex per point) vtkCellArray vertices = vtkCellArray.New(); int nPts = 3; int[] ids = new int[nPts]; for(int i = 0; i < nPts; i++) ids[i] = points.InsertNextPoint(p[i, 0], p[i, 1], p[i, 2]); int size = Marshal.SizeOf(typeof(int)) * nPts; IntPtr pIds = Marshal.AllocHGlobal(size); Marshal.Copy(ids, 0, pIds, nPts); vertices.InsertNextCell(nPts, pIds); Marshal.FreeHGlobal(pIds); // Create a polydata object vtkPolyData pointPoly = vtkPolyData.New(); // Set the points and vertices we created as the geometry and topology of the polydata pointPoly.SetPoints(points); pointPoly.SetVerts(vertices); // Visualize vtkPolyDataMapper mapper = vtkPolyDataMapper.New(); mapper.SetInput(pointPoly); vtkActor actor = vtkActor.New(); actor.SetMapper(mapper); actor.GetProperty().SetPointSize(20); vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow; vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer(); renderer.SetBackground(0.3, 0.2, 0.1); renderer.AddActor(actor); } } }