simple offset question

i want to offset a polyline and keep the original -mimimum- number of control points (the corner points) in the new offseted curve. I CAN'T! it keep increasing the number of points and if i try to simplify the curve sometimes it decreases the cps and sometimes it increases them! like in the example below

any solutions??

thanks!!!

Replies to This Discussion

Permalink Reply by taz on November 15, 2010 at 5:54pm

Try [Offset Loose]. If you only have polylines the result should be the same as regular [Offset].

Permalink Reply by David Rutten on November 15, 2010 at 7:10pm

No it won't. Offset loose moves the vertices a fixed amount, but the actual motion per vertex for a proper offset depends on the angle of the corner.

--
David Rutten
david@mcneel.com
Seattle, Wa

Permalink Reply by taz on November 16, 2010 at 2:20pm

Oops. I was obviously wrong on that one... My bad.

Permalink Reply by Peter Ayad on November 15, 2010 at 6:51pm

it works fine with me

Attachments:

offset.ghx, 58 KB

Permalink Reply by idtasos on November 16, 2010 at 1:52pm

It appears to have problem when the angle between the subsequent sections of the pline is >90 degs. If you try it with another pline you will see it.

Permalink Reply by Peter Ayad on November 16, 2010 at 2:03pm

still works ...
try my previous attached definition

Permalink Reply by idtasos on November 16, 2010 at 2:36pm

the definition is exactly the same. if in your example you offset the curve in +20 distance you will see it. I have tried many times and the problem stays the same! :(

Permalink Reply by Danny Boyes on November 16, 2010 at 5:02pm