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> Read more…
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> Read more…
Waf is a build automation tool written by Python and designed to assist in the automatic compilation and installation of computer software. You can learn about it at waf tutorial.
Let’s use it to build project.
rm is a basic command line tool on Linux OS. It is efficient but can be dangerous if we use incorrectly because it can delete all files and can’t undo. The post shows a way to change its default behavior. Read more…
The geometry meaning of the determinant is the sign volumn value for three vectors in 3D world or a sign area value of two vectors (parallelogram) in the 2D coordinate system. For three points in the 2D world: Read more…
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 Read more…
We have a model looks like in the following scene. It has been cut by a plane but the shape changed after that. So its surface become not flat. I got the cut plane information and planed to project all Read more…
I find a old C plus plus project wrote all log to a local file, it didn’t truncate the local file but just append strings. Here is a simple file, I used the string “finished” to split it to different Read more…
The article is similar to my old post C++: Save Data To A Local File That Humans Can Read. I want to save a little data into a local file that human can’t read it. It is best done conveniently Read more…