public override sealed void InitializeSceneGraph(vtkRenderer vtkRenderer)
{
if (Disposed)
{
return;
}
var rootProp = ModelRootProp;
var origin = Owner.Origin ?? Vector3D.Null;
rootProp.SetPosition(origin.X, origin.Y, origin.Z);
// preinitialize the prop transform matrix
using (var userMatrix = new vtkMatrix4x4())
rootProp.SetUserMatrix(userMatrix);
vtkRenderer.AddViewProp(rootProp);
using (var renderWindow = vtkRenderer.GetRenderWindow())
{
var cameraDistance = GetNominalCameraDistance();
var clientSize = renderWindow.GetSize();
var camera = AddNewVtkObject <vtkCamera>();
camera.ParallelProjectionOn();
camera.SetParallelScale(0.5 * clientSize[1]);
camera.SetPosition(0, 0, cameraDistance);
camera.SetFocalPoint(0, 0, 0);
camera.SetClippingRange(10, 2 * cameraDistance);
camera.ComputeViewPlaneNormal();
camera.SetViewUp(0, 1, 0);
vtkRenderer.SetActiveCamera(camera);
}
}
public override sealed void UpdateSceneGraph(vtkRenderer vtkRenderer)
{
if (Disposed)
{
return;
}
vtkRenderer.SetBackground(VtkHelper.ConvertToVtkColor(_backgroundColor));
uint mTime;
using (var camera = vtkRenderer.GetActiveCamera())
using (var vtkRenderWindow = vtkRenderer.GetRenderWindow())
{
var clientSize = vtkRenderWindow.GetSize2();
var scale = ViewPortSpatialTransform.Scale;
if (FloatComparer.AreEqual(0, scale))
{
scale = 1;
}
camera.SetParallelScale(0.5 * clientSize.Height / scale);
var cameraDistance = GetNominalCameraDistance();
var pos = ViewPortSpatialTransform.ConvertToSource(new PointF(clientSize.Width / 2f, clientSize.Height / 2f));
camera.SetPosition(pos.X, pos.Y, cameraDistance);
camera.SetFocalPoint(pos.X, pos.Y, 0);
camera.SetClippingRange(10, 2 * cameraDistance);
camera.ComputeViewPlaneNormal();
var up = ViewPortSpatialTransform.ConvertToSource(new SizeF(0, -1));
camera.SetViewUp(up.Width, up.Height, 0);
mTime = camera.GetMTime();
}
var rootProp = ModelRootProp;
using (var vtkTransform = rootProp.GetUserMatrix())
{
var modelCumulativeTransform = GetModelCumulativeTransform();
vtkTransform.SetElements(modelCumulativeTransform);
}
UpdateModelRootProp(rootProp);
var propMTime = rootProp.GetMTime();
if (mTime < propMTime)
{
mTime = propMTime;
}
if (_lastMTime < mTime)
{
_lastMTime = mTime;
Modified();
}
}
public void Render()
{
try
{
_renderer.GetRenderWindow().Render();
}
catch (Exception)
{
}
}
public void SetTopMost()
{
vtkRenderer _aRender = _rendererPackage.Renderer;
if (_aRender.GetLayer() > 0)
{
return;
}
if (_aRender.GetRenderWindow().GetRenderers().GetNumberOfItems() == 1)
{
vtkRenderer ren1 = vtkRenderer.New(); // 2d actor
ren1.SetLayer(1); // top layer
ren1.InteractiveOff();
_aRender.SetLayer(0);
_aRender.GetRenderWindow().SetNumberOfLayers(2);
_aRender.GetRenderWindow().AddRenderer(ren1);
//ren1.SetActiveCamera(_aRender.GetActiveCamera());
//new SpherePackage(ren1, new double[] { 0, 0, 0 }, 600).SetOpacity(0.01f);
_aRender.SetActiveCamera(ren1.GetActiveCamera());
_aRender.RemoveActor(Actor);
ren1.AddActor(Actor);
_aRender.InteractiveOn();
}
else
{
for (int i = 0; i < _aRender.GetRenderWindow().GetRenderers().GetNumberOfItems(); ++i)
{
int layer = vtkRenderer.SafeDownCast(_aRender.GetRenderWindow().GetRenderers().GetItemAsObject(i)).GetLayer();
if (layer == 1)
{
vtkRenderer.SafeDownCast(_aRender.GetRenderWindow().GetRenderers().GetItemAsObject(i)).AddActor(Actor);
}
else
{
vtkRenderer.SafeDownCast(_aRender.GetRenderWindow().GetRenderers().GetItemAsObject(i)).RemoveActor(Actor);
}
}
}
}