Create diagonal grid extrusion inside brep through intersection

Grasshopper
1

Hello everyone,

I’m trying to solve a problem when intersecting two solids, but I don’t know why is not working.

I want to get the intersection between a diagonal grid extrusion with a rectangle based brep, however the result is a weird selection of some lines from the grid and a warning in the message balloons saying the intersection failed.

I guess I’m forgeting to consider some informationto have this unexpected result.

Could anyone help me to understande why this is happening?
I want to have the diagonal grid only inside the brep.

IN THE IMAGE

I just moved to the side for visualization.

Left: Weird result
Middle: Rectangle base brep
Right: Diagonal Grid

Intersection Diagonal Grid.gh (102.1 KB)

Canvas%20at%2019%3B31%3B15
Canvas at 19;31;15.png1532×611 121 KB

2

Well …

  1. Fisrt things first: your ortho solids are not good: You have this (surfaces “mixed” with solids):

Screen%20Shot%20052
Screen Shot 052.JPG1566×623 194 KB

instead of that:

Screen%20Shot%20053
Screen Shot 053.JPG1566×623 202 KB

  1. Other than that what are you trying to do? Perforate a thing like the above with some shapes (offset inwards polylines) yielding a single solid … or create a collection of solids the sum of whom makes a perforated assembly?
3

Hi Peter,

Sorry for the late answer.

  1. So to make a good solid, I just have to copy what you did in the picture, is that right?

  2. I was trying to create a collection of solids which the sum makes a perforated assembly, so I could control the density of the grid using the width of the solids. The problem is that when I tried to use Solid Intersection, it didn’t create a clean grid only inside the 3 beginning objects.