VTK – Separating Meshe By Connectivity

I export scene from ParaView to get a mesh like the following image. Let’s take edge lists from different parts and form two independent meshes. #include <iostream> #include <vtkSmartPointer.h> #include <vtkSphereSource.h> #include <vtkActor.h> #include <vtkConeSource.h> #include <vtkRenderer.h> #include <vtkRenderWindow.h> #include <vtkPolyDataMapper.h> #include <vtkRenderWindowInteractor.h> #include <vtkCellData.h> #include <vtkNamedColors.h> #include <vtkColorTransferFunction.h> #include Read more…

VTK – Set Position For vtkTextActor

The article discuss an issue about set position for vtkTextActor object. The class vtkTextActor provides interface SetPosition, its parameter controls object’s left-bottom coordinate. /** * Get the PositionCoordinate instance of vtkCoordinate. * This is used for for complicated or relative positioning. * The position variable controls the lower left corner Read more…

VTK Boolean operation – The Notes About Logic Subtraction For Mesh

We often subtract mesh by other object to get the result we want. The scene looks like the following image. #include <iostream> #include <vtkSmartPointer.h> #include <vtkSphereSource.h> #include <vtkActor.h> #include <vtkConeSource.h> #include <vtkRenderer.h> #include <vtkRenderWindow.h> #include <vtkPolyDataMapper.h> #include <vtkRenderWindowInteractor.h> #include <vtkClipPolyData.h> #include <vtkImplicitBoolean.h> #include <vtkPlanes.h> #include <vtkDataArray.h> #include <vtkDoubleArray.h> #include <vtkProperty.h> Read more…

VTK – Create Spiral By Rigonometric Function

Let’s describe a 3D parametric curve by the form. The value s is in [0, 1]. It is a circle when s is zero, in the other situations it represents a spiral. #include <vtkPointData.h> #include <vtkSmartPointer.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkRenderer.h> #include <vtkPolyData.h> #include <vtkProperty.h> #include <vtkSphereSource.h> #include <vtkPolyDataMapper.h> Read more…

VTK – Cut Image Data By Plane

The post shows how to cut image by a plane smoothly. Header And Macros #include <vtkVersion.h> #include <vtkImageData.h> #include <vtkImageMapper3D.h> #include <vtkImageStencil.h> #include <vtkImageStencilData.h> #include <vtkImageToImageStencil.h> #include <vtkJPEGReader.h> #include <vtkPointData.h> #include <vtkSmartPointer.h> #include <vtkRenderWindow.h> #include <vtkRenderWindowInteractor.h> #include <vtkInteractorStyleImage.h> #include <vtkRenderer.h> #include <vtkImageActor.h> #include <vtkPolyDataToImageStencil.h> #include <vtkPolyData.h> #include <vtkSTLReader.h> #include <vtkProperty.h> Read more…

Fix Crash Bug About vtkCellPicker::~vtkCellPicker And vtkCollection::DeleteElement

Here is dump log which shows the stack information. The class CBase has OpenModule and CloseModule interfaces, they can be called multible times. exe caused an Access Violation at location 00007FFA62174327 in module vtkCommonCore-8.2.dll Reading from location 0000000000000DA4. AddrPC Params 00007FFA62174327 0000000000000001 00007FFA9011F05B 0000013DF642A190 vtkCommonCore-8.2.dll!vtkCollection::DeleteElement 00007FFA62174155 0000000000000001 00007FFA622D3BFF 0000013DF6429290 vtkCommonCore-8.2.dll!vtkCollection::~vtkCollection Read more…

Show Point List By Line And Points

The article describe a simple way to display point id list on the original model. We use VTK to draw and show all scenes. vtkSmartPointer<vtkPolyData> UShowData::ShowListByPoints(vtkSmartPointer<vtkPolyData> polyData, vtkSmartPointer<vtkIdList> list) { vSPNew( result, vtkPolyData ); vSPNew( resultPts, vtkPoints ); vSPNew( resultVerts, vtkCellArray ); for( int i = 0; i < list->GetNumberOfIds(); Read more…

Content Summary
: Input your strings, the tool can get a brief summary of the content for you.

X