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CSharp.md 24.94 KiB

I just started to maintain this page. So stay tuned. In the near future you will find useful examples here from time to time.
A tutorial on how to setup a Windows Forms Application utilizing ActiViz.NET can be found here: [http://www.vtk.org/Wiki/VTK/CSharp/ActiViz.NET Setup a Windows Forms Application to use ActiViz.NET]

Simple Operations

Example Name Classes Demonstrated Description
DistancePointToLine vtkLine Distance between a point and a line
DistanceBetweenPoints vtkMath Computes the distance between two point Distance between two points
UniformRandomNumber vtkMath Generates uniform random number Random number (uniform distribution)
GaussianRandomNumber vtkMath Generates Gaussian random number Random number (Gaussian distribution)
RandomSequence vtkMinimalStandardRandomSequence This is the preferred way to generate random numbers Random sequence
ProjectPointPlane vtkPlane Project a point onto a plan Project a point onto a plane
PerspectiveTransform vtkPerspectiveTransform Apply a perspective transformation to a point

Input and Output

Graph Formats

3D File Formats

Example Name Classes Demonstrated Description
ConvertFile Convert a file from one type to another
XGMLReader vtkXGMLReader Read a .gml file

Standard Formats

Input
Example Name Classes Demonstrated Description
SimplePointsReader vtkSimplePointsReader Read a simple "xyz" file of points
ParticleReader vtkParticleReader This example reads ascii files where each line consists of points with its position (x,y,z) and (optionally) one scalar or binary files in RAW 3d file forma Read an "xyza" file
ReadPlainText vtkPolyData Manually read a file using a streamreade Read a plain text file into a polydata
ReadOBJ vtkOBJReader Read an OBJ (.obj) File
ReadDICOMSeries vtkDICOMImageReader This example demonstates how to read a series of DICOM images and scroll through slice Convert a series of DICOM files into a VTI File
VRML vtkVRMLImporter Read a VRML (WRL) file
DEMReader vtkDEMReader Read DEM (elevation map) files
ReadSTL vtkSTLReader Read stereo lithography STL (.stl) files
ReadPLY vtkPLYReader Read PLY (.ply) files
ReadPLOT3D vtkPLOT3DReader Read CFD (computational fluid dynamics) data produced by PLOT3D Read PLOT3D (.bin) files
ReadPDB vtkPDBReader Read Protein Data Bank Files Read Protein Data Bank files (.pdb) files

VTK Formats

Input
Example Name Classes Demonstrated Description
ReadUnstructuredGrid vtkXMLUnstructuredGridReader Demonstrates how to read a .vtu fil Read an unstructured grid (.vtu) file
ReadPolyData vtkXMLPolyDataReader Read a polygonal data (.vtp) file
ReadImageData vtkXMLImageDataReader Read a image data (.vti) file
ReadStructuredGrid vtkXMLStructuredGridReader Read a structured grid (.vts) file
ReadRectilinearGrid vtkXMLRectilinearGridReader Read a rectilinear grid (.vtr) file
ReadUnknownTypeXMLFile vtkXMLGenericDataObjectReader Read an XML file and later decide what kind it is
Output
Example Name Classes Demonstrated Description
WriteVTU vtkXMLUnstructuredGridWriter VTU is an "Unstructured Grid". This format allows for 3D data to be stored Write a .vtu file
WriteVTP vtkXMLPolyDataWriter VTP is a "PolyData". This format allows for the most complex geometric objects to be stored Write a .vtp file
WriteVTI vtkXMLImageDataWriter VTI is an "ImageData" Write a .vti file
XMLStructuredGridWriter vtkXMLStructuredGridWriter Write a .vts file from a vtkStructuredGrid

Image Formats

Input

Example Name Classes Demonstrated Description
ReadBMP vtkBMPReader Read BMP (.bmp) files
JPEGReader vtkJPEGReader Read a JPG image
PNGReader vtkPNGReader Read a PNG image
ReadPNM vtkPNMReader Read PNM (.pnm) files
ReadTIFF vtkTIFFReader Read TIFF (.tif) files
MetaImageReader vtkMetaImageReader Read .mha files
ImageReader2Factory vtkImageReader2Factory This class tries to find an appropriate reader. It is very convenient to use this when you don't know what kind of file to expect Read most standard image formats.

Output

Example Name Classes Demonstrated Description
WriteBMP vtkBMPWriter Write a BMP (.bmp) file
JPEGWriter vtkJPEGWriter Write a JPEG (.jpg) file
WritePNG vtkPNGWriter Write a PNG (.png) file
WritePNM vtkPNMWriter Write a PNM (.pnm) file
WriteTIFF vtkTIFFWriter Write a TIFF (.tif) file
MetaImageWriter vtkMetaImageWriter Write a .mha/.mhd + .raw file

Geometric Objects

Example Name Classes Demonstrated Description
PolygonIntersection vtkPolygon IntersectWithLine( Compute the intersection of a line segment with a polygon
GeometricObjectsDemo A demonstration of all geometric objects that work the same way
Arrow vtkArrowSource Arrow
Axes vtkAxesActor Axes
ColoredLines vtkCellData vtkLine Colored Lines
Cone vtkConeSource Cone
Cube vtkCubeSource Cube
Cylinder vtkCylinderSource Cylinder
Disk vtkDiskSource A circle with a hole in it Disk
Frustum vtkFrustumSource Frustum
Line vtkLineSource Line
LongLine vtkLine Manually create a polyline
Hexahedron vtkHexahedron Hexahedron
OrientedArrow vtkArrowSource Oriented Arrow
Plane vtkPlaneSource Plane
Planes vtkPlanes Planes
PlanesIntersection vtkPlanesIntersection PlanesIntersection
PlatonicSolid vtkPlatonicSolidSource PlatonicSolid
Point vtkPoints Point
Polygon vtkPolygon Polygon
Pyramid vtkPyramid Pyramid
PolyLine vtkPolyLine PolyLine
Quad vtkQuad Quad
RegularPolygonSource vtkRegularPolygonSource Regular Polygon
Sphere vtkSphereSource Sphere
Triangle vtkTriangle Triangle
TriangleStrip vtkTriangleStrip Triangle strip
Tetrahedron vtkTetra Tetrahedron
Vertex vtkVertex Vertex

Parametric Objects

These examples demonstrate how to create an display one of the many vtkParametric* objects. All of the classes listed can be used in an identical fashion.

Example Name Classes Demonstrated Description
ParametricObjects vtkParametricBoy, vtkParametricConicSpiral, vtkParametricCrossCap, vtkParametricDini, vtkParametricEllipsoid, vtkParametricEnneper, vtkParametricFigure8Klein, vtkParametricKlein, vtkParametricMobius, vtkParametricRandomHills, vtkParametricRoman, vtkParametricSpline, vtkParametricSuperEllipsoid, vtkParametricSuperToroid, vtkParametricTorus Create and display a parametric object
ParametricObjectsDemo Demonstration of all of the vtkParametric* classes

Implicit Functions and Iso-surfaces

Example Name Classes Demonstrated Description
IsoContours vtkContourFunction Visualize different isocontours using a slider
SampleFunction vtkSampleFunction Sample and visualize an implicit function
ExtractLargestIsosurface vtkPolyDataConnectivityFilter Extract largest isosurface
BandedPolyDataContourFilter vtkBandedPolyDataContourFilter BandedPolyDataContourFilter
FilledContours vtkContourFilter Create filled contours (vtkClipPolyData)
ImplicitSphere vtkSphere An implicit representation of a sphere
MarchingCubes vtkMarchingCubes Create a voxelized spher Marching cubes
MarchingSquares vtkMarchingSquares Create a contour from a structured point set (image Marching squares

Working with 3D Data

Example Name Classes Demonstrated Description
ShrinkPolyData vtkShrinkPolyData Move all items in a PolyData towards their centroid
VectorFieldNonZeroExtraction vtkExtractSelectedThresholds This example shows how to create an imagedata object, associate scalar data with some points and visualize only nonzero scalar value Extract non-zero vectors from a vtkImageData
MultiBlockMergeFilter vtkMultiBlockMergeFilter, vtkMultiBlockDataSet Combine MultiBlockDataSets
IterateOverLines vtkCellArray Iterate through the lines of a PolyData
AlignFrames vtkLandmarkTransform Align coordinate frames
WarpVector vtkWarpVector vtkWarpVector
FindAllArrayNames vtkPolyData Get the names of all of the data arrays
PolyDataGetPoint vtkPolyData Get point locations/coordinates from a vtkPolyData
NullPoint vtkPointData Set everything in PointData at a specified index to NUL NullPoint
ContoursFromPolyData vtkCutter Create contours from PolyData
ImplicitBoolean vtkImplicitBoolean Operations include intersection and union.

Working with Meshes

Example Name Classes Demonstrated Description
MatrixMathFilter vtkMatrixMathFilter Compute various quantities on cell and points in a mesh Matrix math filter
WeightedTransformFilter vtkWeightedTransformFilter vtkWeightedTransformFilter
GreedyTerrainDecimation vtkGreedyTerrainDecimation Create a mesh from an ImageData
LargestRegion vtkPolyDataConnectivityFilter Extract the largest connected region in a polydata
SpecifiedRegion vtkPolyDataConnectivityFilter Extract a specific (specified) connected region in a polydata
ColorDisconnectedRegions vtkPolyDataConnectivityFilter Color each disconnected region of a vtkPolyData a different color
Curvature vtkCurvatures Compute Gaussian, Mean, Min, and Max Curvatures
HighlightBadCells vtkMeshQuality Highlight Bad Cells
PolygonalSurfaceContourLineInterpolator vtkPolygonalSurfaceContourLineInterpolator Interactively find the shortest path between two points on a mesh
DijkstraGraphGeodesicPath vtkDijkstraGraphGeodesicPath Find the shortest path between two points on a mesh
SelectPolyData vtkSelectPolyData Select a region of a mesh
ClosedSurface vtkFeatureEdges Check if a surface is closed
Decimate vtkDecimatePro Reduce the number of triangles in a mesh Decimation
QuadricDecimation vtkQuadricDecimation Reduce the number of triangles in a mesh Decimation (quadric decimation)
QuadricClustering vtkQuadricClustering Reduce the number of triangles in a mesh Decimation (quadric clustering)
Subdivision vtkButterflySubdivisionFilter, vtkLoopSubdivisionFilter, vtkLinearSubdivisionFilter Increase the number of triangles in a mesh Subdivision
BoundaryEdges vtkFeatureEdges Find the edges that are used by only one face Finding Boundary Edges
FillHoles vtkFillHolesFilter Close holes in a mesh Fill Holes
WindowedSincPolyDataFilter vtkWindowedSincPolyDataFilter Smooth a mesh Windowed Sinc PolyData Filter
ColoredElevationMap vtkLookupTable Colormap, color ma Color a mesh by height
ElevationFilter vtkElevationFilter Color a mesh by height
SimpleElevationFilter vtkSimpleElevationFilter Color a mesh by dotting a vector from the origin to each point with a specified vector
Triangulate vtkTriangleFilter Convert all polygons in a mesh to triangles Triangulate a mesh
ExtractEdges vtkExtractEdges Extract Edges
CellEdges vtkCell Get edges of cells
SolidClip vtkClipPolyData Create a "solid" clip
CapClip vtkClipPolyData Cap a clipped polydata with a polygon
OBBDicer vtkOBBDicer Breakup a mesh into pieces OBBDicer

Working with Structured 3D Data

This section includes vtkImageData, vtkStructuredGrid, and vtkRectilinearGrid.

"ImageData" is not the traditional "flat, 2D image" you are used to. It is a special VTK data structure in the collection of 3D data structures provided by VTK. Here is an overview of these data structures: [http://vtk.org/Wiki/VTK/Tutorials/3DDataTypes]. Image data can represent at typical 2D image, but also, a 3D volume.