# Drawing on a Curved Surface

**URL:** <https://discourse.mcneel.com/t/drawing-on-a-curved-surface/173282>\
**Category:** Rhino for Windows\
**Tags:** windows\
**Created:** [January 14, 2024, 1:16am UTC](https://discourse.mcneel.com/t/drawing-on-a-curved-surface/173282 "2024-01-14T01:16:25Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![pdfaze](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/pdfaze/32/759228_2.png) [@pdfaze](https://discourse.mcneel.com/u/pdfaze)\
**Post date:** [January 14, 2024, 1:16am UTC](https://discourse.mcneel.com/t/drawing-on-a-curved-surface/173282/1 "2024-01-14T01:16:25Z")

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With planar surfaces it’s easy to draw on by setting a custom CPlane. I can fairly easily draw on a slanted plane, for instance:

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/0/0/2/00241b59afacfca950a07910a043a681aca72111.png)

But let’s say I wanted to draw directly on a curved surface like this one:

 ![image](https://global.discourse-cdn.com/mcneel/uploads/default/original/4X/4/5/b/45b44d264074fa97fe3af69b920f25f9ec23fe41.jpeg)

Is there a way to do this? I know project is an option, but are there more direct ways to draw on a surface that is curving in two or three dimensions?

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**Author:** ![davidcockey](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/davidcockey/32/732604_2.png) [@davidcockey](https://discourse.mcneel.com/u/davidcockey)\
**Post date:** [January 14, 2024, 4:46am UTC](https://discourse.mcneel.com/t/drawing-on-a-curved-surface/173282/2 "2024-01-14T04:46:49Z")

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`InterpCrvOnSrf`[Rhinoceros Help](https://docs.mcneel.com/rhino/8/help/en-us/index.htm#commands/interpcrvonsrf.htm)

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<div class="post-metadata">

**Author:** ![davidcockey](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/davidcockey/32/732604_2.png) [@davidcockey](https://discourse.mcneel.com/u/davidcockey)\
**Post date:** [January 14, 2024, 5:00am UTC](https://discourse.mcneel.com/t/drawing-on-a-curved-surface/173282/3 "2024-01-14T05:00:42Z")

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`CurveOnSurface` is available as a plug-in on Food4Rhino. [CurveOnSurface | Food4Rhino](https://www.food4rhino.com/en/app/curveonsurface)  
Curves created by `CurveOnSurface` can be edited using `CurveOnSurfacePtOn` and the edited curve will stay on the surface.