How to get isotrim onto a trimmed surface

Grasshopper
1

Hello, I am trying to add isotrim to these two surfaces in order to create panels ontop. However, I am aware you can’t do that because the surfaces are trimmed and isotrim only works on untrimmed surfaces.

NO plugins please!

Does anyone know any way I can get isotrim ontop of these surfaces?

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image1920×997 210 KB

FinalBuilding - Copy.gh (60.7 KB)

2

FinalBuilding2026Apr19a
FinalBuilding2026Apr19a1546×872 95.5 KB

3

To avoid the hassle of seam, rotate the entire surface 180 degrees.
In addition to using the Isocurve component you can also do it this way.

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image1455×555 57.6 KB

4

Hello! Thank you so much for your responses! Do you think this way would allow me to add panels such as this on top?

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image354×526 38.8 KB

Also, so sorry, but what is the range connected to? As well as the Iso curve? Because this is what I did and got this:

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image2984×960 261 KB

image
image600×826 40.5 KB

Also is there any way to keep the lines straight and not curved? Thank you for your help! I am a little new to this, so anything helps.

5

Hello, so sorry, but I am a little confused

6

Range is linked to a number, basically the number of Isocurves.
I attach the file.
The panels are made up of 4-point surfaces.

FinalBuilding - Copy a.gh (68.3 KB)

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image1008×606 109 KB

7

Thank you! I ended up just using trimesh as surface morph makes my computer completely crash. But thank you so much, I did end up with something quite similar!