private void createShapes()
{
// disable eventing, otherwise, for each line added the whole panel would get reconfigured
// which would lead to a poor startup performance
EventingSuspend();
// the ground is a lit surface
if (m_surface == null)
{
List <ILArray <double> > mesh = Computation.CreateMesh(-m_max, m_max, m_lowCut, 0, m_res);
m_surface = new ILLitSurface(m_panel, mesh[0], mesh[1], mesh[2], new ILColormap(Colormaps.Jet));
m_surface.Opacity = 190;
Add(m_surface);
}
if (m_lines == null)
{
// we create all individual lines and save them (redundantly) for later convenient reference.
// (the grid is made out of individual line shapes)
List <ILArray <double> > lines = Computation.CreateLines(-m_max, m_max,
m_lowCut, 0, m_res, m_gridSpacing, m_linesPositionOffset);
m_lines = new List <ILLine>();
for (int i = 0; i < lines[0].Dimensions[1]; i++)
{
// x - grid
ILLine line = new ILLine(m_panel, lines[0][null, i], lines[1][null, i], lines[2][null, i]);
line.Properties.Color = m_gridProperties.Color;
line.Label.Text = "";
line.Properties.Width = m_gridProperties.Width;
line.CustomCenter = new ILPoint3Df(0, 0, -200);
m_lines.Add(line);
Add(line);
// y - grid
line = new ILLine(m_panel, lines[1][null, i], lines[0][null, i], lines[2][null, i]);
line.Properties.Color = m_gridProperties.Color;
line.Label.Text = "";
line.Properties.Width = m_gridProperties.Width;
line.CustomCenter = new ILPoint3Df(0, 0, -200);
m_lines.Add(line);
Add(line);
}
}
// re-enable eventing, still one shape to be added: the sphere, which will cause a reconfiguration
// of the whole panel
EventingResume();
// lit sphere
if (m_sphere == null)
{
m_sphere = new ILLitSphere(m_panel, new ILPoint3Df(0, 0, 1.4f), 1.8f, Color.FromArgb(190, Color.Gold));
Add(m_sphere);
m_sphere.Label.Text = "";
m_sphere.Opacity = 190;
}
}
private void updateLines()
{
// since we do not want the whole panel to get updated for every line, we disable
// eventing for this scene graph node
EventingSuspend();
// the grid is made out of individual line shapes
List <ILArray <double> > lines = Computation.CreateLines(-m_max, m_max,
m_lowCut, 0, m_res, m_gridSpacing, m_linesPositionOffset);
// make sure, we have the exact number of lines needed
int needCount = lines[0].Dimensions[1] * 2; // x and y direction -> * 2
if (m_lines.Count > needCount)
{
// if we have to many line shapes, we make unneeded lines invisible
for (int i = m_lines.Count; i-- > needCount;)
{
ILLine shape = m_lines[i];
shape.Visible = false;
}
// just as well, we could instead have removed the shape from both:
// the shape collection of the container (ILSceneGraphInnerNode) and
// the (convenient but redundant) shape collection of the plot:
//Remove(shape);
//m_lines.Remove(shape);
}
while (m_lines.Count < needCount)
{
// we do not have enough lines - so we add new lines here
ILLine newLine = new ILLine(m_panel);
newLine.Properties.Color = m_gridProperties.Color;
newLine.Label.Text = "";
newLine.Properties.Width = m_gridProperties.Width;
newLine.CustomCenter = new ILPoint3Df(0, 0, -200);
Add(newLine);
m_lines.Add(newLine);
}
// reconfigures all lines
for (int i = 0; i < lines[0].Dimensions[1]; i++)
{
// x - grid
ILLine line = m_lines[i];
line.Visible = true;
line.Update(lines[0][null, i], lines[1][null, i], lines[2][null, i]);
// y - grid
line = m_lines[i + lines[0].Dimensions[1]];
line.Update(lines[1][null, i], lines[0][null, i], lines[2][null, i]);
}
// re-enable eventing
EventingResume();
}
