There is a problem with extruding seams lines or applying carves

[iasm6419 0]

There are two problems.
First, the overlapping faces when protruding,
Second, if you use a carve node, the normal direction changes.
I want to effectively control these two
I need help .

I am not familiar with English . Please .Test_J.hipnc

[Atom 1,468]

Try using the polyexpand2d node before the polyextrude.

ap_Test_J.hipnc

[iasm6419 0]

Thank you @atom.
To help you understand, I am attaching the shape I want to make.
With polyextrude2D it will extrude back and forth, then you need to cut half of the shape. So I don't want it.
I want to make it using seams of edge groups of boolen

ap_Test_J_re.hipnc

Edited May 8 by iasm6419
further explanation

[Fenolis 38]

PolyExpand2D is not like PolyExtrude, they are different nodes. PolyExpand allows you to "widen" a curve shape, like your Boolean edges. You have options with PolyExpand2D also to determine if the output is 2 separate curves (inside/outside), or a skinned surface. You can use 2 PolyExpand2D nodes to create the extended shape in your example, the first to offset the edge/curve, and the second that generates the surface.

[iasm6419 0]

Thanks @Fenolis.
However, PolyExpand2D is not the way I want it to be.

I solved the problem of overlapping faces by controlling the normal, but I was wondering if there is a more concise way.

And I'm curious as to why the faces are flipped when using polyextrude with a carve node.

For me, it's important to know the cause of the problem.

(I know there are many different ways.)

[Librarian 855]

@iasm6419 investigate this file maybe it Helps.

 

ap_Test_J_reTr.hipnc

[iasm6419 0]

Thanks @Librarian
I looked through the files, but the problem still remains.
I am attaching an additional image because my explanation may have been insufficient. 

 

@iasm6419  <---- P.S. How do you make a yellow “name tag”?

Edited May 10 by iasm6419

[Keshaw singh 2]

soo cool thaks man

[Fenolis 38]

@iasm6419 it may be a limitation with PolyExtrude SOP, but you can try another method that is more reliable like Orient Along Curve + Sweep.

sweep_carve.hipnc