Project curve to mesh...?

Hi all,

Don't check in here very often anymore (sorry)... I wanted to project some curves to a terrain mesh, and I was sure that the Project component would do it... Nope, only takes BReps to project to... Didn't find any other way to do it with stock GH... Am I being really dumb (probably) and did I miss something obvious?

I did with a Python component - its a 2 liner...

import rhinoscriptsyntax as rs
projCrv=rs.ProjectCurveToMesh (crv, mesh, vec)

I was just surprised that it wasn't already there in GH...

However, although the above works fine with multiple curves and one mesh, or one curve and multiple meshes, it does not work correctly with multiple curves and multiple meshes... I guess the python component won't automatically create the implied double For loops?

Cheers,

--Mitch

Replies to This Discussion

Permalink Reply by David Rutten on May 3, 2012 at 9:39am

Hi Mitch,

there's loads of SDK methods that haven't (yet) been wrapped for Grasshopper. This appears to be one of them.

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by Mitch Heynick on May 3, 2012 at 10:36am

OK, thanks, as long as I haven't missed something obvious... I'm going to check out how to get the Python component working with multiple curve+mesh inputs...

Cheers, --Mitch

Permalink Reply by Giulio Piacentino on May 3, 2012 at 1:14pm

Hi Mitch,

one way would be to accept both inputs as lists and do the double loop yourself. Otherwise, the usual cross reference method in Grasshopper should work, too (if that's the looping logic you need).

Thanks,

- Giulio
________________
giulio@mcneel.com

Permalink Reply by Mitch Heynick on May 3, 2012 at 1:33pm

Hi Giulio,

Yeah, thanks, that finally occurred to me as I was driving home from work... :-)

I'd completely forgotten that those choices were also available in the Python component.

Cheers, --Mitch

Permalink Reply by Alexander Robinson on August 21, 2012 at 12:27am

Did this work for you? I haven't had any luck making this Python Script work.

import rhinoscriptsyntax as rs
projCrv = rs.ProjectCurveToMesh (crv1, mesh1, (0,0,-1))

I get this error:

{0;0}
0. Runtime error (TypeErrorException): iteration over non-sequence of type NoneType
1. Traceback:
line 2299, in ProjectCurveToMesh, "C:\Users\alex\AppData\Roaming\McNeel\Rhinoceros\5.0\Plug-ins\IronPython (814d908a-e25c-493d-97e9-ee3861957f49)\settings\lib\rhinoscript\curve.py"
line 2, in script

Thanks,

Alex

Attachments:

Python.gh, 4 KB

Permalink Reply by Mitch Heynick on August 21, 2012 at 1:29am

Yeah, I don't know what's going on here, I get the same. It works fine with a normal Python script (not in GH) but does not seem to be working anymore inside GH (latest GH and Python plug-ins)

Permalink Reply by federico Martelli on September 1, 2012 at 9:01am