VTK: Calculate the curvature of a mesh model

VTK: Calculate the curvature of a mesh model

Curvature is an important index to describe the degree of curvature of a surface. In computer graphics and geometry processing, curvature calculations are crucial for tasks such as model analysis, shape description, and geometry optimization. This article will introduce how to use the VTK (Visualization Toolkit) library to calculate the curvature of the mesh model, and provide corresponding source code examples.

First, we need to make sure the VTK library is installed. VTK can be installed in Python with the following command:

pip install vtk

Next, we will use the VTK library to load and process the mesh model. Here is a simple example showing how to load a mesh file (eg OBJ or STL format):

import vtk

# 创建一个读取器并加载网格文件
reader = vtk.vtkOBJReader()
reader.SetFileName("mesh.obj")
reader.Update(