Hi Dave, re: scripting Trim

> So which method will return me the fragment list?

So the way the command works is you put an object list for objects to trim in input 0.

Then you put in an object list for cutting objects in input 1.

Then run the generateFragments() method, this will create an internal list of fragments, and those fragments are added to the geometry database and then the next step of the regular Trim command is to pick which pieces you want to discard.

Once the selection of pieces to discard (or keep depending on the mode) is finished, then those go into a "selected fragments" list which goes into input 2. You can put in an object list there that is empty which will be the same as selecting nothing in the Trim command which splits everything up.

After that I think you should be able to call .calculate() to get the split up pieces.

So the key thing is you have to have an object list in input 2, even if it does not have any objects in it. That's just a quirk of how Trim happened to be written, it fails if it could not retrieve the object list holding the selected fragments that came from the object picker in the regular trim workflow.

- Michael