interactive selection of STL model triangles and edit ASCII STL file

[sps]

look here: https://github.com/FreeCAD/FreeCAD/blob ... n.cpp#L392

But this is C++ code...I'll see later. So where is that function in the GUI?

[wmayer]

look here: https://github.com/FreeCAD/FreeCAD/blob ... n.cpp#L392

But this is C++ code...I'll see later. So where is that function the GUI?

It's also possible in Python but then you have to do the highlighting of the selection all on your own. You will find the function in the Mesh menu under Remove components. This is a dialog where you can select a range using a lasso, individual triangles or components a triangle is part of.
https://github.com/FreeCAD/FreeCAD/blob ... s.cpp#L140

I think it would be best if we implemented a Python binding for the MeshSelection class.

[sps]

You will find the function in the Mesh menu under Remove components. This is a dialog where you can select a range using a lasso, individual triangles or components a triangle is part of.

Again, I've already seen that, and I tried to get the python code, but it seems not to work as I reported here

[sps]

Let's take stock of the situation.

For now I'm trying to get my goal with a python script (because of some troubles with C++ IDE environment).
I'm looking for some functions to let me select triangles by mouse click and get their specific data, that is their three points and their normals.
To do that I'm trying to understand how 'Cut mesh' function works, but I can't get its python code, as I asked here
Up to now nothing help I've got on that.

I don't know what else method I can use to get the three points and the normal definition of each selected triangle.

[sps]

I think it would be best if we implemented a Python binding for the MeshSelection class.

How could I start?

Waiting for more detailed instructions (in the while I solve my C++ IDE issue)

[wmayer]

In the script I posted here https://forum.freecadweb.org/viewtopic. ... 48#p189711 you get at some point a face_detail object. See also: https://grey.colorado.edu/coin3d/classSoFaceDetail.html

This gives you access to a SoPointDetail that gives you the index of the corner point in the point array. and the normal can already be accessed with the SoPickedPoint as you can see here: https://grey.colorado.edu/coin3d/classS ... Point.html