static void Main(string[] args)
{
string VTK_DATA_ROOT = vtk.vtkDotNetUtil.vtkGetDataRoot();
// Create the reader and read a data file. Connect the mapper and
// actor.
vtk.vtkSTLReader sr = new vtk.vtkSTLReader();
sr.SetFileName(VTK_DATA_ROOT + "/Data/42400-IDGH.stl");
vtk.vtkPolyDataMapper stlMapper = new vtk.vtkPolyDataMapper();
stlMapper.SetInputConnection(sr.GetOutputPort());
vtk.vtkLODActor stlActor = new vtk.vtkLODActor();
stlActor.SetMapper(stlMapper);
// Create the Renderer, RenderWindow, and RenderWindowInteractor
vtk.vtkRenderer ren = new vtk.vtkRenderer();
vtk.vtkRenderWindow renWin = new vtk.vtkRenderWindow();
renWin.AddRenderer(ren);
vtk.vtkRenderWindowInteractor iren = new vtk.vtkRenderWindowInteractor();
iren.SetRenderWindow(renWin);
// Add the actors to the render; set the background and size
ren.AddActor(stlActor);
ren.SetBackground(0.1, 0.2, 0.4);
renWin.SetSize(500, 500);
// Zoom in closer
ren.ResetCamera();
vtk.vtkCamera cam1 = ren.GetActiveCamera();
cam1.Zoom(1.4);
iren.Initialize();
renWin.Render();
iren.Start();
vtk.vtkWin32OpenGLRenderWindow win32win =
vtk.vtkWin32OpenGLRenderWindow.SafeDownCast(renWin);
if (null != win32win) win32win.Clean();
}
public void ShowVTKV3d()
{
renWin.AddRenderer(aRenderer);
iren.SetRenderWindow(renWin);
vtk.vtkSmoothPolyDataFilter smoother = new vtk.vtkSmoothPolyDataFilter();
smoother.SetInputConnection(mc.GetOutputPort());
smoother.SetRelaxationFactor(0.05);
smoother.SetNumberOfIterations(30);
vtk.vtkDecimatePro deci = new vtk.vtkDecimatePro();
deci.SetInputConnection(smoother.GetOutputPort());
deci.SetTargetReduction(0.9);
deci.PreserveTopologyOn();
deci.Update();
int marchingNumberOfPoints = deci.GetOutput().GetNumberOfPoints();
int marchingNumberOfPolys = deci.GetOutput().GetNumberOfPolys();
info += "marching number of points : " + marchingNumberOfPoints + "\r\n";
info += "marching number of polys : " + marchingNumberOfPolys + "\r\n";
vtk.vtkSmoothPolyDataFilter smoother2 = new vtk.vtkSmoothPolyDataFilter();
smoother2.SetInputConnection(deci.GetOutputPort());
smoother2.SetRelaxationFactor(0.05);
smoother2.SetNumberOfIterations(30);
mcmap.SetInputConnection(smoother2.GetOutputPort());
mcmap.ScalarVisibilityOff();
mcactor.SetMapper(mcmap);
mcactor.GetProperty().SetColor(1, 1, 1);
aRenderer.AddActor(mcactor);
aRenderer.SetBackground(0.0f, 0.0f, 0.0f);
aRenderer.ResetCamera();
renWin.Render();
addBusyObservers();
iren.Initialize(); iren.Enable();
}
void AddConeToWindow(vtk.vtkRenderWindow renWin)
{
//
// Next we create an instance of vtkConeSource and set some of its
// properties. The instance of vtkConeSource "cone" is part of a visualization
// pipeline (it is a source process object); it produces data (output type is
// vtkPolyData) which other filters may process.
//
vtk.vtkConeSource cone = new vtk.vtkConeSource();
cone.SetHeight(3.0f);
cone.SetRadius(1.0f);
cone.SetResolution(10);
//
// In this example we terminate the pipeline with a mapper process object.
// (Intermediate filters such as vtkShrinkPolyData could be inserted in
// between the source and the mapper.) We create an instance of
// vtkPolyDataMapper to map the polygonal data into graphics primitives. We
// connect the output of the cone souece to the input of this mapper.
//
vtk.vtkPolyDataMapper coneMapper = new vtk.vtkPolyDataMapper();
coneMapper.SetInput(cone.GetOutput());
//
// Create an actor to represent the cone. The actor orchestrates rendering of
// the mapper's graphics primitives. An actor also refers to properties via a
// vtkProperty instance, and includes an internal transformation matrix. We
// set this actor's mapper to be coneMapper which we created above.
//
vtk.vtkActor coneActor = new vtk.vtkActor();
coneActor.SetMapper(coneMapper);
//
// Create the Renderer and assign actors to it. A renderer is like a
// viewport. It is part or all of a window on the screen and it is
// responsible for drawing the actors it has. We also set the background
// color here
//
vtk.vtkRenderer ren1 = new vtk.vtkRenderer();
ren1.AddActor(coneActor);
ren1.SetBackground(0.1f, 0.2f, 0.4f);
//
// Finally we create the render window which will show up on the screen
// We put our renderer into the render window using AddRenderer. We also
// set the size to be 300 pixels by 300
//
renWin.AddRenderer(ren1);
vtk.vtkRenderWindowInteractor iren = renWin.GetInteractor();
{
m_boxWidget = new vtk.vtkBoxWidget();
m_boxWidget.SetInteractor(iren);
m_boxWidget.SetPlaceFactor(1.25f);
m_boxWidget.SetProp3D(coneActor);
m_boxWidget.PlaceWidget();
m_boxWidget.AddObserver((uint)vtk.EventIds.InteractionEvent,
new vtk.vtkDotNetCallback(myCallback));
m_boxWidget.On();
}
}
void Run()
{
// Create a selection window. We will display the point and cell ids
// that lie within this window.
int xmin = 200;
xLength = 100;
xmax = xmin + xLength;
int ymin = 200;
yLength = 100;
ymax = ymin + yLength;
pts = new vtk.vtkPoints();
pts.InsertPoint(0, xmin, ymin, 0);
pts.InsertPoint(1, xmax, ymin, 0);
pts.InsertPoint(2, xmax, ymax, 0);
pts.InsertPoint(3, xmin, ymax, 0);
vtk.vtkCellArray rect = new vtk.vtkCellArray();
rect.InsertNextCell(5);
rect.InsertCellPoint(0);
rect.InsertCellPoint(1);
rect.InsertCellPoint(2);
rect.InsertCellPoint(3);
rect.InsertCellPoint(0);
vtk.vtkPolyData selectRect = new vtk.vtkPolyData();
selectRect.SetPoints(pts);
selectRect.SetLines(rect);
vtk.vtkPolyDataMapper2D rectMapper = new vtk.vtkPolyDataMapper2D();
rectMapper.SetInput(selectRect);
vtk.vtkActor2D rectActor = new vtk.vtkActor2D();
rectActor.SetMapper(rectMapper);
// Create a sphere and its associated mapper and actor.
vtk.vtkSphereSource sphere = new vtk.vtkSphereSource();
vtk.vtkPolyDataMapper sphereMapper = new vtk.vtkPolyDataMapper();
sphereMapper.SetInputConnection(sphere.GetOutputPort());
vtk.vtkPolyDataMapper.GlobalImmediateModeRenderingOn();
vtk.vtkActor sphereActor = new vtk.vtkActor();
sphereActor.SetMapper(sphereMapper);
// Generate data arrays containing point and cell ids
vtk.vtkIdFilter ids = new vtk.vtkIdFilter();
ids.SetInputConnection(sphere.GetOutputPort());
ids.PointIdsOn();
ids.CellIdsOn();
ids.FieldDataOn();
// Create the renderer here because vtkSelectVisiblePoints needs it.
vtk.vtkRenderer ren = new vtk.vtkRenderer();
// Create labels for points
visPts = new vtk.vtkSelectVisiblePoints();
visPts.SetInputConnection(ids.GetOutputPort());
visPts.SetRenderer(ren);
visPts.SelectionWindowOn();
visPts.SetSelection(xmin, xmin + xLength, ymin, ymin + yLength);
// Create the mapper to display the point ids. Specify the format to
// use for the labels. Also create the associated actor.
vtk.vtkLabeledDataMapper ldm = new vtk.vtkLabeledDataMapper();
ldm.SetInputConnection(visPts.GetOutputPort());
ldm.SetLabelFormat("%g");
ldm.SetLabelModeToLabelFieldData();
vtk.vtkActor2D pointLabels = new vtk.vtkActor2D();
pointLabels.SetMapper(ldm);
// Create labels for cells
vtk.vtkCellCenters cc = new vtk.vtkCellCenters();
cc.SetInputConnection(ids.GetOutputPort());
visCells = new vtk.vtkSelectVisiblePoints();
visCells.SetInputConnection(cc.GetOutputPort());
visCells.SetRenderer(ren);
visCells.SelectionWindowOn();
visCells.SetSelection(xmin, xmin + xLength, ymin, ymin + yLength);
// Create the mapper to display the cell ids. Specify the format to
// use for the labels. Also create the associated actor.
vtk.vtkLabeledDataMapper cellMapper = new vtk.vtkLabeledDataMapper();
cellMapper.SetInputConnection(visCells.GetOutputPort());
cellMapper.SetLabelFormat("%g");
cellMapper.SetLabelModeToLabelFieldData();
cellMapper.GetLabelTextProperty().SetColor(0, 1, 0);
vtk.vtkActor2D cellLabels = new vtk.vtkActor2D();
cellLabels.SetMapper(cellMapper);
// Create the RenderWindow and RenderWindowInteractor
renWin = new vtk.vtkRenderWindow();
renWin.AddRenderer(ren);
vtk.vtkRenderWindowInteractor iren = new vtk.vtkRenderWindowInteractor();
iren.SetRenderWindow(renWin);
// Add the actors to the renderer; set the background and size;
// render
ren.AddActor(sphereActor);
ren.AddActor2D(rectActor);
ren.AddActor2D(pointLabels);
ren.AddActor2D(cellLabels);
ren.SetBackground(1, 1, 1);
renWin.SetSize(500, 500);
// Initialize the interactor.
iren.Initialize();
renWin.Render();
// Move the selection window across the data set.
MoveWindow();
// Put the selection window in the center of the render window.
// This works because the xmin = ymin = 200, xLength = yLength = 100, and
// the render window size is 500 x 500.
PlaceWindow(xmin, ymin);
// Now start normal interaction.
iren.Start();
vtk.vtkWin32OpenGLRenderWindow win32win =
vtk.vtkWin32OpenGLRenderWindow.SafeDownCast(renWin);
if (null != win32win) win32win.Clean();
}
// Function: Calculate en render Histogram in window
public void renderHistogram(vtk.vtkImageData VoxelData)
{
// Get size of histogram window
int[] size = renHist.GetSize();
width = size[0]; height = size[1];
//Setup parameters histogram Accumulate Filter
numBins = width / 2;
inputRange = VoxelData.GetScalarRange();
double origin = inputRange[0];
double spacing = 1.0 * (inputRange[1] - origin) / numBins;
// Setup Accumulate filter
vtk.vtkImageAccumulate accumulate = new vtk.vtkImageAccumulate();
accumulate.SetInput(VoxelData); //Get input voxeldata
accumulate.SetComponentExtent(0, numBins - 1, 0, 0, 0, 0);
accumulate.SetComponentOrigin(origin, 0.0, 0.0);
accumulate.SetComponentSpacing(spacing, 1.0, 1.0);
// Make Data object from Accumulated object
data = accumulate.GetOutput();
data.Update();
// Initialize first and last point of the transferfunction.
npoints = 2;
pointsx[0] = 0; pointsy[0] = 0;
pointsx[1] = width - 1; pointsy[1] = height - 1;
pointsc[0] = 1; pointsc[1] = 1;
// Draw the histogram in a canvas and add the transferfunction to it
drawhisto();
drawcurve();
// Create a color table
vtk.vtkColorTransferFunction colorTransferFunction = new vtk.vtkColorTransferFunction();
for (int i = 0; i < 14; i++)
{
colorTransferFunction.AddRGBPoint(i, colortable[i, 0], colortable[i, 1], colortable[i, 2]);
}
// Use the color table to color the histogram window objects
vtk.vtkImageMapToColors sColors = new vtk.vtkImageMapToColors();
sColors.SetInputConnection(canvas.GetOutputPort());
sColors.SetLookupTable(colorTransferFunction);
// Convert the histogram image to a histogram imagemap
vtk.vtkImageMapper histmap = new vtk.vtkImageMapper();
histmap.SetInputConnection(sColors.GetOutputPort());
histmap.RenderToRectangleOn();
histmap.SetColorWindow(256);
histmap.SetColorLevel(127);
// Create the actor needed to draw the histogram image
vtk.vtkActor2D imageactor = new vtk.vtkActor2D();
imageactor.SetMapper(histmap);
imageactor.SetPosition(0, 0); // Fit the histogram to the window
imageactor.SetPosition2(1, 1);
// Add the Histogram Image Render to the window object
ren1.AddActor(imageactor);
ren1.SetViewport(0, 0, 1, 1); // Fit the histogram to the window
renHist.AddRenderer(ren1);
// Add a Window (mouse) interactor to the window
iren.SetRenderWindow(renHist);
// Add mouse events to the window
iren.RemoveObserver((uint)vtk.EventIds.LeftButtonPressEvent);
iren.AddObserver((uint)vtk.EventIds.LeftButtonPressEvent, new vtk.vtkDotNetCallback(LeftButtonPress));
iren.RemoveObserver((uint)vtk.EventIds.LeftButtonReleaseEvent);
iren.AddObserver((uint)vtk.EventIds.LeftButtonReleaseEvent, new vtk.vtkDotNetCallback(LeftButtonRelease));
iren.RemoveObserver((uint)vtk.EventIds.MouseMoveEvent);
iren.AddObserver((uint)vtk.EventIds.MouseMoveEvent, new vtk.vtkDotNetCallback(MouseMove));
iren.RemoveObserver((uint)vtk.EventIds.RightButtonPressEvent);
iren.AddObserver((uint)vtk.EventIds.RightButtonPressEvent, new vtk.vtkDotNetCallback(RightButtonPress));
iren.RemoveObserver((uint)vtk.EventIds.MiddleButtonPressEvent);
iren.AddObserver((uint)vtk.EventIds.MiddleButtonPressEvent, new vtk.vtkDotNetCallback(MiddleButtonPress));
// Set the (display) update rate of the histogram
iren.SetStillUpdateRate(5);
iren.SetDesiredUpdateRate(5);
// Initialize interactor and render histogram
iren.Initialize();
renHist.Render();
// Debug output
info = "Histogram is created \r\n";
}
