一：主要的知识点
1、说明
本文只是教程内容的一小段，因博客字数限制，故进行拆分。主教程链接：vtk教程——逐行解析官网所有Python示例-CSDN博客
2、知识点纪要
本段代码主要涉及的有①检查vtk版本
二：代码及注释
#!/usr/bin/env python3 from vtkmodules.vtkCommonCore import ( VTK_VERSION_NUMBER, vtkVersion ) def vtk_version_ok(major, minor, build): """ Check the VTK version. :param major: Major version. :param minor: Minor version. :param build: Build version. :return: True if the requested VTK version is greater or equal to the actual VTK version. """ needed_version = 10000000000 * int(major) \ + 100000000 * int(minor) \ + int(build) try: vtk_version_number = VTK_VERSION_NUMBER except AttributeError: # Expand component-wise comparisons for VTK versions < 8.90. ver = vtkVersion() vtk_version_number = 10000000000 * ver.GetVTKMajorVersion() \ + 100000000 * ver.GetVTKMinorVersion() \ + ver.GetVTKBuildVersion() if vtk_version_number >= needed_version: return True else: return False def main(): print('VTK Version:',vtkVersion.GetVTKVersion()) if not vtk_version_ok(9, 0, 0): print('You need VTK version 9.0.0 or greater to run this program.') return test_versions = ((9, 2, 20220831), (9, 19, 0)) for ver in test_versions: if vtk_version_ok(*ver): print('This code works for VTK Versions >=', '.'.join(map(str, ver))) else: print('You need VTK Version', '.'.join(map(str, ver)), 'or greater.') print() if __name__ == '__main__': main()
