CUT in 3D Script

[Red]

I'm trying to cut 3 shapes out of a CYLIND. What is the quickest and easiest way to do that?

[Ignacio Azpiazu]

Red wrote:
I'm trying to cut 3 shapes out of a CYLIND. What is the quickest and easiest way to do that?

If they are as long as the cylinder (the subtracted prism is potentially infinite in both directions), CUTPOLY. If the wedge starts at a given point and is potentially infinite in one direction only, CUTPOLYA (or something like that). If it is a wedge with a given dimension, or a pyramid, or a cone, or whatever, it's the GDL version of the solid elements operations which I never tried but can't be that difficult .

[Anonymous]

The GDL booleans (SEOs) are quite easy once you get used to them. You just create the entities you want to work with using the GROUP and ENDGROUP statements, and then ADDGROUP, SUBGROUP, etc. to do the ops, and finally use PLACEGROUP to actually see the results. The only funny bit is that the group names are always referenced in quotation marks while results of the operations are stored in variables without quotation marks.

They are terrifically useful really. I have been using them recently on some plumbing fixtures and they make the task MUCH easier (such as adding the toilet bowl to the siphon/base and producing the proper intersection edges).