Offset of simple curve fails

Hej there.

I just tried to offset a curve with Grasshopper.

But some of the Triangles have problems to do - I guess it's due to acute angles.

The lines are extended at the "new" triangles tip.

Is this a common problem in GH?

Or is there any way to elude that?

Thanks a lot.

Tobi

Tags: Offset

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Replies to This Discussion

Permalink Reply by phillip on June 1, 2012 at 3:22am

To recieve advise, you´d probably need to be a little more specific.

Best,

Phillip

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Permalink Reply by Danny Boyes on June 1, 2012 at 4:05am

Are your triangles closed?

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Permalink Reply by stoltm on June 1, 2012 at 4:42am

Hej.

They are closed.

Some of them just simply offset into the wrong direction.

And some just are extended....

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Permalink Reply by Danny Boyes on June 1, 2012 at 5:25am

OK. Some of this is related to the RhinoCommon offset routine using user supplied inputs at the time of running eg direction. There have been several work arounds to over come this problem such as Offsetting both sides and calculating the new curve lengths and culling the smaller/bigger etc.

I know David tried writing his own offset routine for GH but it would seem that there are too many hurdles as it is still not happening 100% of the time as desired.

If you search the Forum for Offset Bug you might find other's solutions to this.