Polygon
VTKExamples/CSharp/GeometricObjects/Polygon
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¶
Polygon.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 { Polygon(); } catch(Exception ex) { MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK); } } private void Polygon() { // Setup four points vtkPoints points = vtkPoints.New(); double c = Math.Cos(Math.PI / 6); // helper variable points.InsertNextPoint(0.0, -1.0, 0.0); points.InsertNextPoint(c, -0.5, 0.0); points.InsertNextPoint(c, 0.5, 0.0); points.InsertNextPoint(0.0, 1.0, 0.0); points.InsertNextPoint(-c, 0.5, 0.0); points.InsertNextPoint(-c, -0.5, 0.0); // Create the polygon vtkPolygon polygon = vtkPolygon.New(); polygon.GetPointIds().SetNumberOfIds(6); //make a six-sided figure polygon.GetPointIds().SetId(0, 0); polygon.GetPointIds().SetId(1, 1); polygon.GetPointIds().SetId(2, 2); polygon.GetPointIds().SetId(3, 3); polygon.GetPointIds().SetId(4, 4); polygon.GetPointIds().SetId(5, 5); // Add the polygon to a list of polygons vtkCellArray polygons = vtkCellArray.New(); polygons.InsertNextCell(polygon); // Create a PolyData vtkPolyData polygonPolyData = vtkPolyData.New(); polygonPolyData.SetPoints(points); polygonPolyData.SetPolys(polygons); // Create a mapper and actor vtkPolyDataMapper mapper = vtkPolyDataMapper.New(); mapper.SetInput(polygonPolyData); 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); renderer.ResetCamera(); } } }