Extrude tapered - weird output

I've made 3 simple definitions for "Extrude tapered" issue.

Somehow the first one, based on extrude with OFFSET (curve with specified distance) component, acts strange - see image attached. It happens only when angle values are positive.

Where is the problem?

Thanks

Piotr

PS Draw any rectangle and assign to the definition.

Attachments:

Extrude Tapered.gh, 15 KB
weird output.jpg, 339 KB

Replies to This Discussion

Permalink Reply by Chris Tietjen on January 1, 2012 at 7:31am

Curve seam needs to be adjusted.

Permalink Reply by Piotr on January 1, 2012 at 7:54am

Chris

Thanks for your reply. It still doesn't answer the question: why the simplified offset curve has a 5 control points while the original has only 4?

Loose offset gives a good results.

Piotr

Permalink Reply by Pieter Segeren on January 1, 2012 at 7:56am

Hi Piotr, I guess I would cheat just a tiny bit;) :

Attachments:

ExtrudeTapered_PSG.gh, 6 KB

Permalink Reply by Piotr on January 1, 2012 at 8:16am

Not acceptable with my obsessive attention to precision :-)

Permalink Reply by Pieter Segeren on January 1, 2012 at 8:25am

I can understand, I got the same condition:)
I now made it a tiny bit more accurate;) :

Attachments:

ExtrudeTapered_v2PSG.gh, 6 KB

Permalink Reply by Piotr on January 1, 2012 at 10:08am

Thanks. I will put it through inspection :-)

Regards

Piotr

Permalink Reply by Pieter Segeren on January 2, 2012 at 9:37am

What exactly is your goal? Do all the offset option have to work (sharp, round, smooth, chamfer), or it it just one option, if so which one(s)?
If you just want the corners to be sharp, try the attachment.
(offsetting to the outside creates extra pts, to the inside not, so I tried to avoid the offset, or rather make my own way of offsetting (a rectangle))

Attachments:

OffsetRectangle_avoidingrebuild_PSG.gh, 10 KB

Permalink Reply by Mal Bas on October 17, 2012 at 8:46pm

Hi that last definition was great!

How to you apply that to several curves?

I've tried referencing in several curves, and then just explode everywhere..

Permalink Reply by Piotr on October 17, 2012 at 9:51pm

Hi Mal

Try the middle def. it extrudes multiple curves regardless it's location.

I think I have upated it since last time.

Attachments:

Extrude Tapered.gh, 16 KB

Permalink Reply by Mal Bas on October 17, 2012 at 10:15pm

Thanks, it works really well,

Except I would like it to taper to a line, basically /\ So its more like a normal roof.

As it is i've fudged it, so that there's a middle value for the height and angle where they all kinda look like there working.

Attachments: