Solid Difference Help

[Lara4747 (Lara)]

I’m a school student struggling with grasshopper - especially with the solid difference/intersect tools. I’ve cut two geometries out of each other below - but I wanted to keep the middle portion, instead of deleting it. Any help would be great - I’ve attached my grasshopper script below.

solid difference - test.gh (20.6 KB)

[Piotr]

What do you mean by middle portion?

You mean this?

[Lara4747 (Lara)]

yes that’s the part I wanted to keep! Minus the wall on the left hand side

[Piotr]

Your top element is not long enough to cover the wall:

[Lara4747 (Lara)]

Is there any way to create a surface out of the polyline and the curve in my script? So I can cut that out instead of the extrusions?

[Piotr]

To get it solved you have to replace intersection with solid difference:

I don’t understand this triangle creation so you have to fix it yourself first.

[Piotr]

The curve needs to be flat and closed but I don’t understand how this could be of help here?

[Adam_M (Adam Mounsey)]

Try this:
solid difference - test_v2.gh (31.6 KB)

[Lara4747 (Lara)]

I want to make this shape a surface, rather than having two surfaces which extrude upwards and downwards - does that make sense?

[Piotr]

You can extend the upper curve for larger triangle.

[Piotr]

You can use loft, but you still need to extend the upper curve for the effect you want:

[Lara4747 (Lara)]

Any chance you can send me the script? I’m not sure I understand

[Piotr]

Ar you happy with my solution? Adam proposed another one and there is no clear information (sketch?) what are you after.