STEP Import and surface management

Hello everyone!
I’m pretty newbie with the software and probably this sounds pretty banal for some of you.
Here I’m trying to understand how I can import a step file and building a pattern onto some of its surfaces. I already noticed that the nature of the imported geometry is important. Once I set and decontruct the brep, 2 indipendent surfaces are detected because they were obviously built as two separate surfaces.
What’s the best strategy to follow in this case? How to manage imported geometry for an easier and clean data managment?



Thank you in advance to everyone could help

Anyone?

Try to merge to a single surface with command MergeSrf

You also can use ShapeMap mapping the pattern to this brep,

BTW, Could you provide the 3dm file? I will give you a demo about how to use ShapeMap to map the pattern

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The question is not clear… But if you want to make pattern on brep similarly to how you do it on surface you can use ShapeMap ShapeMap | Food4Rhino. Same components can be found in pOd plugin


or make a new surface using boundary curves from two surfaces

Thank yoo for the answer. Rhino doesn’t allow me to mergesrf because they have trimmed edge.
I will take a look at ShapeMap.

Here you are the 3dm file. The polysurface was originally modelled with Solidworks and then imported as step within Rhino.

Thank you for the interest
SRF_Trans_01.3dm (549.5 KB)

Hello and thank you for your reply.
I try to explain myself better. I would like to import a geometry into Rhino and apply a 3d pattern on some areas. If as in the posted example the surfaces are not joined the mapping will be misaligned and the generation of a grid will be accordingly.
I would like to understand how to handle this type of scenario where starting from a non-native Rhino model, I can work on surfaces as one.

Thank you in advance

FYI,


SMDemo.gh (100.5 KB)

Thank you Jessen very intresting and super easy to map plug-in!
This works very well for mapping preset grids but what if I want to create my own and work directly and independently on the surface as if it were one entity and not two separate ones?
Should the original surface be built as a single entity so that it can be managed individually?

Thank you so much

This depends on what kind of texture pattern you want to design. If it’s 2D pattern, you can trim the 3D surfaces based on the mapped 2d pattern, e.g. by creating holes based on the previous hexagonal,

For 3d texture, here’s a demo for mapping 3D texture patterns, just fyi.

BTW, here is a customer sharing how to use ShapeMap for product texture pattern design. I hope it’s helpful to you.

Thank you very much Jessesn for sharing all this. I will try this out for sure. Amazing work btw