Custom Rhino Geometry from C#

Hi all,

I'm trying to get a graph visualised in the Rhino viewport. To this end I have a custom class called 'Graphline' in C#. Each 'Graphline' consist of three parts:

a Line segment
a Color
a (line) thickness.

Now my goal is to get these graphlines into Rhino, but the "RegisterOutputParams" ofcourse does not have the 'Graphline' type yet.

I've already worked with creating a custom parameter in the past using "IGH_Goo" however in these past cases there was no need for including geometry and thats where I got stuck.

Can anyone help me on how to get my custom geometry Graphlines from c# into the rhino viewport?

Thanks in advance,

Jorn

Replies to This Discussion

Permalink Reply by Hannes Löschke on April 15, 2014 at 3:38am

Do you just want to add some preview in GH or do you want to have that Graphline baked as a custom Graphline object?

If it's the first, you can implement the IGH_PreviewData interface for your IGH_Goo type. That interface gets called on the registered output parameters. You will be able to provide some code to draw your lines there.

For the second, I have no idea how, but there are some ways to create custom Rhino types. You should be able to implements IGH_BakeAwareData and provide some code, that transfers the IGH_Goo type to the custom Rhino type.

Permalink Reply by Jorn van der Steen on April 15, 2014 at 3:55am

Thanks, for replying! It's the second one, baking 'Graphline' as a custom Rhino type. You got some sources where I can learn about IGH_BakeAwareData? Else ill just start googling haha

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