Python in Grasshopper

Hi,

I have trouble running Rhino Commands in the Python component for Grasshopper :

rs.Command("_SelNone") doesn't work,

rs.SelectObjects(objectIds)

Basically I want to :

- feed the component with curves

- select those curves in the Python code ...

- ... before running a Rhino Command on them ( a Rhino plug-in command to be precise )

Thanks for your help,

Thomas

Replies to This Discussion

Permalink Reply by Giulio Piacentino on November 28, 2011 at 11:50am

Hi Thomas,

have a look at this script.
It targets the Rhino document. You can then use Rhino commands with that geometry.

Remember to clean after yourself, or the document will be quickly filled!
This is something that is done for you in the Grasshopper special document.

- Giulio
_______________
giulio@mcneel.com

Attachments:

pydocs.ghx, 32 KB

Permalink Reply by Thomas Bocahut on November 28, 2011 at 6:13pm

Thanks for the quick answer,

I get that Rhino v.s. GH document thing now but would you mind those questions :

- Is the " scriptcontext " part of the RhinoCommon language ?

What is RhinoCommon ? Where can I find informations on It ? What's the difference with RhinoScript or IronPython, I m a bit confused !

- Is there any way that I can apply the Rhino Plug-in (T-Splines) in the GH document itself ?

the obvious reason as you can imagine is that all my elements come from GH so I would rather not having to bake them and then select them ...

Thanks for your help,

Thomas

Permalink Reply by Giulio Piacentino on November 29, 2011 at 1:58am

Hi Thomas,

answering the two questions:

- scriptcontext is a module used in rhinoscriptsyntax

- it depends if t-splines exposes a programming interface other than a set of commands. Unless they do, no -- but you can finish the script I sent and it will work. All selection and deselection can be done automatically. You can use rs.coerce___() to obtain object references to pass down in Grasshopper.

But since now you are mentioning t-splines they have a Grasshopper component.

If you decide to write the script nevertheless, remembering to delete all objects after you are done.

More Q&A about RhinoCommon and RhinoScriptSyntax are here:
7 questions you migth have about RhinoCommon and RhinoScriptSyntax

Cheers,

- Giulio
_______________
giulio@mcneel.com

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