Trim surface

Hello I have two shapes , one of them is the size of the rectangular whole I need to make and the other is the surface that needs to have the whole. I have tried to split the surface but it does not seem to work. I also tried to subtract the curves to see if that would split it but it is not working. If anyone can help I would really appreciate it.

THANKS in advance!!!

Replies to This Discussion

Permalink Reply by Moonbeast on August 7, 2011 at 9:42am

I am not entirely sure what you are trying to do, you have a rectangle and a surface to halve it? It can be a long way around but if you intersect the two with BBX and then use the output curve to split the rectangle you will end up with what you want, lastly you'll want ti put some condition into the definition to select which half you want to keep.

hth

Permalink Reply by Sebastian L. on August 7, 2011 at 10:14am

maybe this helps?

http://www.grasshopper3d.com/forum/topics/surfacetrim-workflow

Permalink Reply by Pieter Segeren on August 7, 2011 at 1:04pm

Hi Melissa, sounds like you want to use a List Item after the SrfSplit (and leave the i set to the default 0), for instance.

Permalink Reply by Melissa Jimenez on August 8, 2011 at 8:07am

I am not sure what i am doing wrong... i can not seem to get it to trim... I have extruded it to see if it would delete it but it did no work.

Here is the definition i used to try to trim the curve.

What i need to do is remove the area that is show in blue from the red area. I was able to select the roof and create the rectangle shown in blue but I do not know how completely remove it.. If someone could please help me that would be great because i am desperate ... THANK YOU