The filter vtkWarpScalar can help us to move the point along point normal by the scalar amount times the scale factor. We can change the size of the original model with it as long as there are normals in data. Read more…
We can use VTK observer-command mechanism to listen to slider value changing event and override our responding method void Execute(vtkObject *caller, unsigned long, void*) to change target item’s size. It’s easy to implement with the subclass of vtkCommand and vtkSliderWidget. Read more…
AddInputConnection is a public interface provided by vtkAlgorithm. We can use it to combine multiple input sources to get a final 3D model with some special algorithm class. The following example has two VTK algorithm classes which show us the Read more…
vtkInteractorEventRecorder can be used to record VTK events in a single file and replay it by pass these events to vtkRenderWindowInteractor. Record The following code shows how to use it to save all interactive information into a file. We rotate Read more…
vtkAbstractWidget has its mechanism to handle interactive events. Here is a simple demo indicates the differences between the responses of widget and vtkInteractorStyleTrackballCamera. Example Code: int main() { vtkSmartPointer<vtkConeSource> cone = vtkSmartPointer<vtkConeSource>::New(); cone->Update(); vtkSmartPointer<vtkPolyDataMapper> coneMapper = vtkSmartPointer<vtkPolyDataMapper>::New(); coneMapper->SetInputData( cone->GetOutput() ); Read more…
Huangdi, the Yellow Emperor, is a Chinese ancestor and culture hero. It’s said that he has two possible last names, Gongsun or Ji, both have the style of Chinese dynasty Zhou. According to the record, the man could speak after Read more…
It’s a simple job for us to make bounding box visible in traditional VTK render window. We can SetCurrentRenderer for renderWindowInteractor->GetInteractorStyle() and press P to show it. #include <iostream> #include <vtkSmartPointer.h> #include <vtkSphereSource.h> #include <vtkActor.h> #include <vtkConeSource.h> #include <vtkRenderer.h> #include Read more…
Create Patch Files Create simple Email-format files which contain commit content with git. For example, $ git format-patch -M origin/master -5 0001-remove-debug-dir.patch 0002-adjust-height.patch 0003-use-splitter-as-stackWidget-page.patch 0004-Make-gif-resize.patch 0005-add-resize-event.patch The patch file has UNIX mailbox format context which is convenient for e-mail submission Read more…
My last programmer tutor looks like a college student, he is very careful on his usual work, read the code and think more, make project fewer errors, this is his attitude towards daily tasks. This tutor brought me some important Read more…