DMSUBTRACT documentation? and How to select solids to subtract

Eric Ratliff

There does not seem to be documentation of DMSUBTRACT.  I can't even find it with the forum search.

What I need to know is how to select solids to subtract.  The command keeps insisting on a 'point'.  I have all my solids to subtract on one layer, and the solid to subtract from on another.  The problem is, when I mouse over or click on the items to subtract, it just keeps selecting the positive that I want to subtract from.

Any suggestions?

Joe Dunfee

 I am not aware of a DMSUBTRACT command. There is a SUBTRACT command for subtracting one solid from another. That is documented in the help files.

-Joe

Eric Ratliff

Joe,

These commands seem to be the same thing.  I did find reference to DMSUBTRACT in the 'Bricscad for Autocad Users' document.

sub vs dmsub.png

Eric Ratliff

I finally got the solid I wanted.  I could not figure out how to use quick select to get solids into my 'to subtract' selection set.  Or, fpr even a set for the MOVE command .  However I did select by layer using the Prompt Menu.  I had to type the name of the layer though, and would have preferred the drop down in the quick select.