Extrude Polysurface to another surface

Geometry
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1

I am trying to extrude Polysurface 1 to surface 1 as seen in the image 1. Motive is to create a solid geometry and export as SAT file.
But somehow there is no direct node to achieve the same .
I tried extruding the individual curves of the surfaces in polysurface 1 but it will not create a solid geometry as seen in image 2 .
Is there there a workaround ?

A1
A1.jpg1932×958 174 KB
A2
A2.jpg1930×962 244 KB

2

Combine the surfaces into a poly surface and then convert that polysurface into a solid. Depending on how you made things normals may need to be reversed.

3

@Dushyant_Negi I’ll assume that the base of your geometry is rectangular and aligned to the primary axes

  1. Convert your (closed) polysurface to a solid using Polysurface.ExtractSolids
  2. Obtain the bounding box of the geometry using BoundingBox.ByGeometry
  3. Convert the bounding box to a solid using BoundingBox.ToCuboid
  4. Use Solid.Difference to subtract (1) from (3) toand obtain what seems to be your goal
1 Like
4

Hi @Vikram_Subbaiah Vikram,
Base of the geometry is actually not rectangular .Let me explain the issue again .
I have a modified Floor 1 and from this I want to generate Floor2 as solid geometry (so as to export as STL).
so basically moving surface S0 to plane XY.
My approach was to :

1-Convert all the surfaces S1,S2,S3,S4 into Polysurface1.(P1)
2-Create another surface (S0’) from perimeter points of P1
3-somehow create solid geometry between P1 and S0’

But for some reason Step3 is not working out .

ISSUE1
ISSUE1.png1609×990 107 KB

5

Hi jacob, Somehow polysurface to solid is not working out in this context

6

Can you post the Dynamo graph and file necessary for us to recreate it?

7

One approach:

  • Project the perimeter curves of the lower (faceted) surface onto the upper surface
  • Create solids using Solid.ByLoft
  • Union the solids

grafik
grafik.png1842×273 47 KB

1 Like
8

Hi @Andreas_Dieckmann …It Gives this error at the end …

ISSUE3
ISSUE3.png1922×965 149 KB
TESTFILE_EXTRACT TOP SURFACE.rvt (584 KB)
EXTRACT SURFACE_4.dyn (26.7 KB)

Also I m uploading the files @jacob.small… if someone can see what I am not doing right

9

Can you clarify which surfaces you want to join into a solid?

v1
v1.png837×692 54 KB

v2
v2.png837×692 53.5 KB

10

hI @Andreas_Dieckmann I am intending to join the image 2 surfaces …

11

Loft by perimeter curves as an option.

12

Is it under some package .Can’t seem to find ?

13

get the perimeter curves first - I think it’s Surface.PerimeterCurves. Then search your library for ‘loft’ as there are several options.