Offset inwards

Replies to This Discussion

Permalink Reply by Danny Boyes on November 5, 2014 at 3:53am

Have a look at using the Bower Bird plug-in which makes use of the clipper libraries and is far more reliable for this.

Permalink Reply by Oliver Hampel on July 2, 2016 at 5:17pm

Hi Danny, Just wanted to let you know that this plugin was a great suggestion - works like a charm. thanx

Permalink Reply by dim gimi on November 5, 2014 at 5:10am

Thanks a lot :)

Permalink Reply by ng5 Alex on November 5, 2014 at 5:59am

if these curves are planar you can use planar component and provide the planes output to the offset component.

and like Danny said can use bowerbird plugin or clipper, they both make things simpler.

http://www.grasshopper3d.com/forum/topics/clipper-for-grasshopper-0...

Permalink Reply by dim gimi on November 5, 2014 at 6:02am

In case i have a polyline that is not closed, how is it possible to offset all curves from same side?(in this case i exclude the bottom line from extrusion). BB Offset does not seem to work here.(Dont bother about  the gap between the offseted line and the bottom line)

(script included)

I just want to change the vector of the curve so that every curve is getting offseted from same side.

Attachments:

• offsetinwardsbutone.gh, 9 KB

Permalink Reply by Danny Boyes on November 5, 2014 at 6:04am

In this case I would offset both sides and then keep the Shorter of the two 

Permalink Reply by ng5 Alex on November 5, 2014 at 6:11am

that is the safest way to ensure you have the inner.!

Permalink Reply by Danny Boyes on November 5, 2014 at 6:13am

is that a statement of shock or awe?

Permalink Reply by ng5 Alex on November 5, 2014 at 6:18am

excitement. and awe of course. :-)

i am having offset issues too, you know.hehe

Permalink Reply by Danny Boyes on November 5, 2014 at 6:27am

don't we all

Permalink Reply by dim gimi on November 5, 2014 at 6:05am

Alex i think planar command  helps my cause. I am trying to do it now and i will post it.

Permalink Reply by Danny Boyes on November 5, 2014 at 6:11am

The offset dilemma has been pondered on here since I can remember.

Just putting Offset into the search field will pull up mostly inward offset bugs/errors/problems

The work arounds have been to usually take the form of doing lots more than necessary and then cherry picking the results.

The latest break throughs have come with the aid of the clipper libraries see this thread: http://www.grasshopper3d.com/forum/topics/we-need-to-talk-about-off...

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