rotate UV

is there any way to rotate uv division , I searched the forum and found only one post that contains one solution - vb script , that is not working , at list with me .

thanks for your help

Replies to This Discussion

Permalink Reply by Rodrigo Medina on March 27, 2014 at 5:05pm

Hi could you be more specific in how you actually want to rotate an UV division? For what I understood you want a diagrid subdivision instead of the regular rectangular grid, is that the case ?

Permalink Reply by Kaz on March 27, 2014 at 5:16pm

hi rodrigo

I want to rotate the v in the uv division , in order to achive a parallelogram division ,not diagrid , but skewed quads like that exist in lunch box , the problem with skewed in lunchbox is that the panels are not continues when rotating ...

Permalink Reply by djordje on March 27, 2014 at 5:48pm

By rotating uv, you mean you need to replace (swap) their places?
If that is so, try this one.

Permalink Reply by Kaz on March 27, 2014 at 6:16pm

thank you djordje , but i want to rotate the v segments to get a parralelogram subsurfaces , how would i rotate it with your script?

Permalink Reply by Furion Huang on March 27, 2014 at 6:27pm

I don't think this is the way UV grid is defined. The U or V grid is always that way when the surface geometry is defined. One way you can do though, is create the U division lines first, divide these grid lines with same count, shift the lists of division points incrementally, flip matrix the lists and create interpolate curves by connecting the points in the list. Be aware of the vertices at border edges, they may make some troubles.

Permalink Reply by Kaz on March 28, 2014 at 8:26pm

Thank you furion , actually i tried this ..there was aproblem in the edges ...

Permalink Reply by Kaz on March 28, 2014 at 8:21pm

In revit , it is possible to rotate the v segments , i can not believe that i can not do this in grasshopper !!

Permalink Reply by Kaz on March 30, 2014 at 9:05pm

I did it !!

Permalink Reply by Rodrigo Medina on March 31, 2014 at 1:26pm

Great could you tell us what you did, you made me curious about this.

Permalink Reply by Kaz on March 31, 2014 at 5:33pm

actually I created a series of vertical and horizental lines on a surface plan , the vertical lines are provided with rotate component , then I used evaluate surface component to map the grid into the target surface , rotating vertical lines produced some gabs in the mapped surface..to avoid this ..I 've made some extend and multiple offset operations (thanks to Rajja Issa for her multiple offset' script ) , and finally I used split surface to create the subsurfaces ..

thanks to every one who's tried to help me .. Thank you Rodrigo

the image below shows the final grid with shaders installed on it

Permalink Reply by Kagan E on July 1, 2019 at 7:43am

Hi Kaz.

Could you kindly make a more detailed explanation? Step by step, i prefer. I reaaly need to do this. I have a hard problem, my boss give me to solve. UV manipulation i really need to learn.

Thank you.

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