Custom text and line display in GHPython?

Grasshopper
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1

Hi,

Would it be possible to display text, with a custom font, size and colour, and curves, with custom line thicknesses, styles and colours, directly from GHPython in Rhino?
If so, where can I find the corresponding developer docs or reference?

My goal is basically to develop some kind of HUD (head-over display) for a script that I’m working on.

2

I’m not sure I understand completely, but I’ll stick to the last part:

What you seem to need is using WinForms or Eto. Creating GUIs

For…

You need to check Conduit, I guess.

https://developer.rhino3d.com/api/RhinoCommon/html/M_Rhino_Display_DisplayConduit_PreDrawObjects.htm

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3

Let’s say I want to overwrite how my GHPython component shows certain curves. A curve by default displayed as continuous and red, should for instance be shown as pink and dotted in Rhino and its length should be displayed somewhere.

Thanks for the reply!

4

Interesting question.

I think it’s this class here, but I don’t see LineType only thickness and color.

https://developer.rhino3d.com/api/grasshopper/html/T_Grasshopper_Kernel_GH_PreviewWireArgs.htm

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5

Thanks.

6

Maybe a simpler solution, without scripting?

image
image.png1200×380 41 KB

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7

I like to use the CustomDisplay class for rendering simple vector based graphics (i.e. no line styles) from GHPython (the legend in my solar hours thingie is an example). There’s a couple of caveats though, read more here:

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