PolyLine
VTKExamples/CSharp/GeometricObjects/PolyLine
Description¶
This example demonstrates how to make a line through several ordered points.
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¶
PolyLine.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 { PolyLine(); } catch(Exception ex) { MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK); } } private void PolyLine() { // Create five points double[,] p = new double[,] { { 0.0, 0.0, 0.0 }, { 1.0, 0.0, 0.0 }, { 0.0, 1.0, 0.0 }, { 0.0, 1.0, 2.0 }, { 0.0, 3.0, 3.0 } }; // Create the points vtkPoints points = vtkPoints.New(); for(int i = 0; i < 5; i++) points.InsertNextPoint(p[i, 0], p[i, 1], p[i, 2]); vtkPolyLine polyLine = vtkPolyLine.New(); polyLine.GetPointIds().SetNumberOfIds(5); for(int i = 0; i < 5; i++) polyLine.GetPointIds().SetId(i, i); // Create a cell array to store the lines in and add the lines to it vtkCellArray cells = vtkCellArray.New(); cells.InsertNextCell(polyLine); // Create a polydata to store everything in vtkPolyData polyData = vtkPolyData.New(); // Add the points to the dataset polyData.SetPoints(points); // Add the lines to the dataset polyData.SetLines(cells); //Create an actor and mapper vtkPolyDataMapper mapper = vtkPolyDataMapper.New(); mapper.SetInput(polyData); vtkActor actor = vtkActor.New(); actor.SetMapper(mapper); vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow; vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer(); renderer.SetBackground(0.2, 0.3, 0.4); renderer.AddActor(actor); } } }