StephenWei

We create a simple scene for the first time, cone and axes are in the point (0, 0, 0). #include <iostream> #include <vtkSmartPointer.h> #include <vtkSphereSource.h> #include <vtkActor.h> #include <vtkConeSource.h> #include <vtkRenderer.h> #include <vtkRenderWindow.h> #include <vtkPolyDataMapper.h> #include <vtkLineSource.h> #include <vtkRenderWindowInteractor.h> #include <vtkAxesActor.h> #include <vtkProperty.h> #include <vtkXMLPolyDataReader.h> #include <vtkCharArray.h> #include <vtkPointData.h> #include Read more…

The article introduces two ways to calculate the distance from a point to a line. One use dot product by two vectors to get distance vector, and the other use cross product by vectors to achieve it. Let’s assume the point is P, two endpoints of the line are L1 Read more…

We can use vtkImplicitPolyDataDistance to calculate the distance from a point to the target polydata. It’s better than calculating the distance by iterating to the search point. The following example puts a sphere that radius is 1 and origin is (0, 0, 0) in the renderer. Our test point is Read more…