VTK actual combat: take the coordinate axis as an example

VTK actual combat: take the coordinate axis as an example

VTK (Visualization Toolkit) is a cross-platform, open source data visualization toolkit that supports the processing and visualization of multiple data types and data formats. In VTK, the coordinate axis is one of the indispensable components, which can be used to display information such as the position and orientation of objects in the scene. This article will take the usage of coordinate axes as an example to introduce the basic operation and usage of VTK.

First, we need to import the necessary libraries:

import vtk

Then create a RenderWindow and Renderer, these two components are the core components of the VTK scene. Among them, RenderWindow represents the window of the entire scene, and Renderer represents the scene itself. We can create a simple RenderWindow and Renderer with the following code:

# Create a rendering window and renderer
ren = vtk.vtkRenderer()
renWin = vtk.vtkRenderWindow()<