Topic: Auto trim to ellipse

[jbaxter]

Greetings,

I am looking for a lisp routine which will trim globally internal entities within a ellipse.

I have a set of polylines which have an ellipse (block) inserted at each vertex point and would like to trim out the polyline inside each ellipse.

Regards,
John

[LE]

See if the routine TRIMIN could help.... over here:

http://www.theswamp.org/index.php?topic=9441.msg123132#msg123132

[RbtDanforth]

If you are using an ellipse in a block it is not a big deal to make a polyline ellipse (pellipse = 1)then pedit it and decurve it. You can then turn the polyline into a wipeout with the wipeout command and refedit it into the block and wblock the block.

Then whenever you insert the block it will hide anything behind it, even though they are not trimmed. Is excellent thing for section marks and such that often have to be squeezed into a drawing. then if you move them there is no re drawing what was trimmed or re-trimming. Works good for putting columns in front of windows in elevations too. If you have to move them the linework is still there so much easier.

Biggest drawback is you sometimes have to re draworder to make sure it happens correctly.