Many thanks to anyone who can provide information.
1 i found that opening the .wrl file using ParaView, one actor contained by the file, whose position(direction) is error;
2 when use vtk，open the wrl file, the result shown is ok,but converting .wrl file to .vtp file with vtk interfaces , then open the vtp file, the result shown is same as the result mentioned by 1,the problem still exists;
3 when use CAD Assistant, open the wrl file, the result shown is same as vtk;
4 the wrl file is below.
why is the result given by Para view different from vtk?
1.wrl (2.2 MB)