public void AddCylinderEdgeToActors(byte[] bgColor, ref vtkActorCollection actors)
{
vtkProperty pp = vtkProperty.New();
pp.SetOpacity(0.7);
pp.SetColor(bgColor[0], bgColor[1], bgColor[2]);
pp.SetLineWidth(5);
pp.SetLighting(false);
vtkRegularPolygonSource circle = vtkRegularPolygonSource.New();
circle.GeneratePolygonOn();
circle.SetNumberOfSides(50);
circle.SetRadius(radius);
circle.SetCenter(0, 0, 0);
vtkPolyDataMapper mappper = vtkPolyDataMapper.New();
mappper.SetInputConnection(circle.GetOutputPort());
vtkActor actor = vtkActor.New();
actor.SetProperty(pp);
actor.SetMapper(mappper);
actors.AddItem(actor);
actor.SetProperty(pp);
actors.AddItem(actor);
vtkLineSource ls = vtkLineSource.New();
ls.SetPoint1(0, 0, 0);
ls.SetPoint2(0, 0, height);
vtkTubeFilter tf = vtkTubeFilter.New();
tf.SetInputConnection(ls.GetOutputPort());
tf.SetRadius(radius);
tf.SetNumberOfSides(100);
tf.CappingOff();
vtkPolyDataMapper dm = vtkPolyDataMapper.New();
dm.SetInputConnection(tf.GetOutputPort());
vtkActor a2 = vtkActor.New();
a2.SetMapper(dm);
a2.SetProperty(pp);
pp.SetOpacity(0.5);
actor.SetProperty(pp);
actors.AddItem(a2);
}
private void ReadPDB()
{
// Path to vtk data must be set as an environment variable
// VTK_DATA_ROOT = "C:\VTK\vtkdata-5.8.0"
vtkTesting test = vtkTesting.New();
string root = test.GetDataRoot();
string filePath = System.IO.Path.Combine(root, @"Data\caffeine.pdb");
vtkPDBReader pdb = vtkPDBReader.New();
pdb.SetFileName(filePath);
pdb.SetHBScale(1.0);
pdb.SetBScale(1.0);
pdb.Update();
Debug.WriteLine("# of atoms is: " + pdb.GetNumberOfAtoms());
// if molecule contains a lot of atoms, reduce the resolution of the sphere (represents an atom) for faster rendering
int resolution = (int)Math.Floor(Math.Sqrt(300000.0 / pdb.GetNumberOfAtoms())); // 300000.0 is an empriric value
if (resolution > 20)
{
resolution = 20;
}
else if (resolution < 4)
{
resolution = 4;
}
Debug.WriteLine("Resolution is: " + resolution);
vtkSphereSource sphere = vtkSphereSource.New();
sphere.SetCenter(0, 0, 0);
sphere.SetRadius(1);
sphere.SetThetaResolution(resolution);
sphere.SetPhiResolution(resolution);
vtkGlyph3D glyph = vtkGlyph3D.New();
glyph.SetInputConnection(pdb.GetOutputPort());
glyph.SetOrient(1);
glyph.SetColorMode(1);
// glyph.ScalingOn();
glyph.SetScaleMode(2);
glyph.SetScaleFactor(.25);
glyph.SetSourceConnection(sphere.GetOutputPort());
vtkPolyDataMapper atomMapper = vtkPolyDataMapper.New();
atomMapper.SetInputConnection(glyph.GetOutputPort());
atomMapper.UseLookupTableScalarRangeOff();
atomMapper.ScalarVisibilityOn();
atomMapper.SetScalarModeToDefault();
vtkLODActor atom = vtkLODActor.New();
atom.SetMapper(atomMapper);
atom.GetProperty().SetRepresentationToSurface();
atom.GetProperty().SetInterpolationToGouraud();
atom.GetProperty().SetAmbient(0.15);
atom.GetProperty().SetDiffuse(0.85);
atom.GetProperty().SetSpecular(0.1);
atom.GetProperty().SetSpecularPower(30);
atom.GetProperty().SetSpecularColor(1, 1, 1);
atom.SetNumberOfCloudPoints(30000);
vtkTubeFilter tube = vtkTubeFilter.New();
tube.SetInputConnection(pdb.GetOutputPort());
tube.SetNumberOfSides(resolution);
tube.CappingOff();
tube.SetRadius(0.2);
// turn off variation of tube radius with scalar values
tube.SetVaryRadius(0);
tube.SetRadiusFactor(10);
vtkPolyDataMapper bondMapper = vtkPolyDataMapper.New();
bondMapper.SetInputConnection(tube.GetOutputPort());
bondMapper.UseLookupTableScalarRangeOff();
bondMapper.ScalarVisibilityOff();
bondMapper.SetScalarModeToDefault();
vtkLODActor bond = vtkLODActor.New();
bond.SetMapper(bondMapper);
bond.GetProperty().SetRepresentationToSurface();
bond.GetProperty().SetInterpolationToGouraud();
bond.GetProperty().SetAmbient(0.15);
bond.GetProperty().SetDiffuse(0.85);
bond.GetProperty().SetSpecular(0.1);
bond.GetProperty().SetSpecularPower(30);
bond.GetProperty().SetSpecularColor(1, 1, 1);
bond.GetProperty().SetDiffuseColor(1.0000, 0.8941, 0.70981);
// get a reference to the renderwindow of our renderWindowControl1
vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow;
// renderer
vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer();
// set background color
renderer.SetBackground(0.2, 0.3, 0.4);
// add our actor to the renderer
renderer.AddActor(atom);
renderer.AddActor(bond);
}