// in Form_Load the panel and all shapes should be created
// and initialized.
private void Form1_Load(object sender, EventArgs e) {
// the ILPanel is created ...
m_panel = ILPanel.Create();
// and added to the Controls collection of the form
Controls.Add(m_panel);
// a scene graph will hold our shapes
ILSceneGraph scene = m_panel.Graphs.AddSceneGraph();
// data for the shapes are best created in the Computation
// helper - keeping the GUI code clean
ILCell data = Computation.CreatePendulaWeight();
// setup the first polygon. For creation we do
// not specify vertex data yet. This will be done
// later in the UpdateShapes function
m_poly1 = new ILLitPolygon(m_panel, data[0].Dimensions[1]);
m_poly1.Border.Width = 2;
m_poly1.Border.Color = Color.Gray;
m_poly1.Opacity = 180;
m_poly1.CustomCenter = new ILPoint3Df(0,0,1);
m_poly1.Label.Text = "";
// and add it to the scene. We create an individual node
// for the weight' shapes.
ILSceneGraphInnerNode weightNode = new ILSceneGraphInnerNode(m_panel);
scene.AddNode(weightNode);
weightNode.Add(m_poly1);
// setup the 2nd polygon. The same size is here used as
// for the first polygon.
m_poly2 = new ILLitPolygon(m_panel, data[0].Dimensions[1]);
m_poly2.Border.Width = 2;
m_poly2.Border.Color = Color.Gray;
m_poly2.Opacity = 180;
m_poly2.Label.Text = "";
m_poly2.CustomCenter = new ILPoint3Df(0,0,1);
weightNode.Add(m_poly2);
// the same for the quads: only give the number
// of vertices needed. Data are updated later
m_quads = new ILLitQuads(m_panel, data[0].Dimensions[1] * 2);
m_quads.FillColor = Color.Red;
m_quads.Opacity = 180;
m_quads.Label.Text = "";
m_quads.CustomCenter = new ILPoint3Df(0,0,1);
// add the quads to the scene
weightNode.Add(m_quads);
// create the scale below the pendula weight
ILCell lData = Computation.CreateScale();
ILArray<double> vert = lData[0] as ILArray<double>;
ILArray<double> maps = lData[1] as ILArray<double>;
m_lines = new ILLines(m_panel, vert[0.0,null], vert[1.0,null], vert[2.0,null], maps);
m_lines.Label.Text = "";
m_lines.Properties.Color = Color.Black;
m_lines.Shading = ShadingStyles.Flat;
// the scale lines we put directly in the root node
// (no need to create an extra inner node for them)
scene.AddNode(m_lines);
// initialize the shapes
UpdateShapes(data);
// Experiment with these panel settings! They get clear than!
//m_panel.PlotBoxScreenSizeMode = PlotBoxScreenSizeMode.StrictOptimal; // default: Optimal
//m_panel.AutoZoomContent = false; // (default: true)
m_panel.AspectRatio = AspectRatioMode.MaintainRatios;
//m_panel.Projection = Projection.Perspective;
m_panel.InteractiveMode = InteractiveModes.Rotating;
// setup the timer control
m_timer = new Timer();
m_timer.Interval = 40;
m_timer.Tick += new EventHandler(m_timer_Tick);
m_timer.Start();
}
