Give surface thickness??

I am a newbie in the world of GH. I have been following the intro-tutorials posted on the site with great success!

I have succeeded in creating a lofted surface through biarcs.

Now my question is, how can I give this surface a thickness? I have googled it and did not find an easy answer. Should be rather easy I suppose?

Thanks!

Replies to This Discussion

Permalink Reply by djordje on June 11, 2014 at 5:56am

Hi Mikkel,
Try using "Extrude" component along with "Z unit vector" input. This will create a polysurface out of your surface.

Permalink Reply by Mikkel Stagis on June 11, 2014 at 6:28am

Hi!

Thanks! That seems to work!

Though this will only give it thickness one direction (if I did it correctly)

Are there a way to do it so it will "offset" it? Like a shell modifier or such.

Since it´s organic i would like a similar thickness allover.

Thanks again!

Permalink Reply by djordje on June 11, 2014 at 6:46am

Try using the "Offset surface" component, instead of "Extrude".

Permalink Reply by Michael Pryor on June 11, 2014 at 7:57am

As a side note, David has made the loft component able to loft between surfaces as well. So as Djordje stated, use offset surface then loft between the original and the offset.

Permalink Reply by Mikkel Stagis on June 11, 2014 at 2:39pm

Hi Guys,

Again thanks for your help. The surface is originally a loft from biarcs.

I think I don't understand what you mean correctly with the loft between the original and the offset... I have enclosed the file and marked the "dead end". Could you please see if you have an answer that can be helpful?

THANKS!

Attachments:

Tutorial.gh, 24 KB

Permalink Reply by Michael Pryor on June 11, 2014 at 3:17pm

Permalink Reply by djordje on June 12, 2014 at 1:23am

We all learn something new each day.
Thanks Mike.

Permalink Reply by Arend on June 12, 2014 at 4:53am

Actually, the loft between two surfaces works because a surface > curve cast will return the singular curve. If the surface has a trim hole, the surface cannot be cast to a single curve, but multiple curves and it will fail.

Thus: because of casting magic it works - not because you can actually create a loft between two surfaces.

Permalink Reply by Michael Pryor on June 12, 2014 at 9:41am

Well yes I know this a loft is always for curves, but behind the scenes. A lot of stuff always happens behind the scenes. Whats important though is what the user experiences it as and recognizes it as.

Permalink Reply by ng5 Alex on June 12, 2014 at 10:21am

its nice to know what happens behind the scenes when things work, so that user can find out what to do when they don't.

Permalink Reply by Michael Pryor on June 12, 2014 at 10:35am

Yes true. Although, in a perfect world the program would be designed so that the user doesnt need to know. I think GH may get there soon.

Permalink Reply by ng5 Alex on June 12, 2014 at 10:58am

when giving a point as input in the plane input of the circle component grasshopper assumes that this point is the origin of a xy plane (by default) and creates the circle. shouldn't this be explained? its kind of the same thing as with loft. David has made some components ''smart'' in order to make visual programming easier.

this perfect world you describe does not include users that want to know what happens behind the scenes , which in the real world do exist.

data matching longest list default behavior is ... behind the scenes??