How to file holes in STL files

Hello,

I am wondering how to fill holes appear in STL file.

Please suggest

I don’t know if i understand you correctly. Maybe you should give a bit more context. That would also increase your chances that people can help you.

There is an excellent example on the vtk-website which shows how to fill holes in meshes:

https://lorensen.github.io/VTKExamples/site/Cxx/Meshes/FillHoles/

TestFillHoles

Hope it helps.