C# Node not executed when called through Rhino.Inside

Rhino.Inside
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1

Hello,

We are trying to embed Rhino.Inside in our application. The idea is that parametric designers can create a Grasshopper script, which can be uploaded to our application, and we will populate the desired parameters and then execute the script.

We managed to get it working based on this code (rhino-developer-samples/rhino.inside/dotnet/SampleRunGrasshopper at 7 · mcneel/rhino-developer-samples · GitHub).

When using this script we will get the desired result.

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This is a screenshot from a .Net console application. The node ‘Input1’ gets assigned a new value, and when retrieving the data from the output node the result is correct.

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But when using a custom C# node which does nothing more then concattenating 2 input strings, the output will not return any result when called from the .Net Console application. In Rhino it works as expected.

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Is it only possible to use native nodes, or are we missing something?

2

Is this something that could work with Rhino.Compute, or is executing custom nodes not allowed in a headless environment?

5

This is odd; you should definitely be able to execute custom nodes in a headless environment.

Are you using Rhino 7 or 8 for this? We will need to try and reproduce this issue.

6

Hello, we are using Rhino 8.

8

@Henro_Nijboer

  • Are you using Rhino Compute or this is a custom dotnet app that is using Rhino.Inside to launch Rhino?
  • Which C# component are you using? (What’s the component name)
  • I would appreciate if you can share the compute console log up to the point that you asked it to run the grasshopper definition and right after. I would need to verify that the new scripting languages are initialized correctly.