I also have a mesh generated from a sun study analysis, and I’d like to flatten/unroll this mesh as well so that it aligns with and can be overlaid onto the flattened castle geometry.
The issue is that the sun study result is an open mesh, and I’m unsure of the best workflow to unroll it while maintaining its relationship to the original geometry.
why is the sun study a different mesh? how did you unroll the first mesh and why cant you unroll the 2nd that simply has a different texture now the same way? why if true is one open and the other one not?
I modelled the castle normally and then used ladybug to generate a sun map mesh ontop of it. I could unroll the castle model normally as it was just made of surfaces. but this is the mesh I want to keep the sun texture on it
hm i see now, i just opened the file, so ladybug creates a mesh from your surfaces? or you need a mesh for ladybug to work? either way to resume once again to be sure, you have unrolled surfaces and you want the mesh to unroll the same way, correct?
it certainly would help if you would include the initial polysurface (castle) before it got meshed to understand how it unrolled the object. like that its going to be close to impossible to puzzle the parts down.
it seems that the mesh is colored through ladybug, its not a texture, but that should not be the issue, what you have to do is find where it split the initial surface mark those areas, or UnrollSrf actually has an option to mark the parts. then you know the corresponding parts on the castle. after that you can manually split the mesh along these lines and unroll it. its still a bit of a work but it then will at least be feasible.
since you are involving Ladybug, there is a dedicated discourse for ladybug, i am sure people there have more experience with this specific tool in those regards.
well if you must go this route and refuse to seek help at the ladybug discourse:
the mesh is very much simplified, the stairs are missing and generally there are many openings closed now, it looks like there was maybe a different input surface still? maybe there is an option in ladybug not to smash the initial geometry so hard? i never used it so i can not help much.
what you can do if nothing is left you overlay the polysurface on the mesh, then you see how the surfaces that were split before correspond to the mesh, you can then split the mesh along these here black (locked) lines and unroll it. i just made a quick and dirty job in selecting the outer surfaces here, its just for the idea of course. thats all i can do for now.
Thank you for you comments. I have managed to sort it out on my own by exploding the mesh and using grasshopped to rotate is all to be on one plane and it worked!
