# Axes

VTKExamples/CSharp/GeometricObjects/Axes

### Description

This example shows how to position an AxesActor in 3D. Notice that position and orientation of the AxesActor is done with a user transform.
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

Axes.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 {
                Axes();
             }
             catch(Exception ex) {
                MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK);
             }
          }

          private void Axes() {
             vtkSphereSource sphereSource = vtkSphereSource.New();
             sphereSource.SetCenter(0.0, 0.0, 0.0);
             sphereSource.SetRadius(0.5);

             //create a mapper
             vtkPolyDataMapper sphereMapper = vtkPolyDataMapper.New();
             sphereMapper.SetInputConnection(sphereSource.GetOutputPort());

             // create an actor
             vtkActor sphereActor = vtkActor.New();
             sphereActor.SetMapper(sphereMapper);

             // a renderer and render window
             vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow;
             vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer();
             renderer.SetBackground(0.2, 0.3, 0.4);

             // add the actors to the scene
             renderer.AddActor(sphereActor);

             vtkAxesActor axes = vtkAxesActor.New();
             // The axes are positioned with a user transform
             vtkTransform transform = vtkTransform.New();
             transform.Translate(0.75, 0.0, 0.0);
             axes.SetUserTransform(transform);
             // properties of the axes labels can be set as follows
             // this sets the x axis label to red
             // axes.GetXAxisCaptionActor2D().GetCaptionTextProperty().SetColor(1,0,0);

             // the actual text of the axis label can be changed:
             // axes.SetXAxisLabelText("test");

             renderer.AddActor(axes);
             // we need to call Render() for the whole renderWindow,
             // because vtkAxesActor uses an overlayed renderer for the axes label
             // in total we have now two renderer
             renderWindow.Render();
          }
       }
    }