GDL Pgon code issue

[RhinoX]

Hi everyone, I’m still learning GDL and wrote a simple script to create two triangular polygons using the pgon command. For some reason, it keeps throwing an error and I can’t figure out why. Any help would be much appreciated. Thanks!

vert 0.00, 0.00, 0.00 ! 01
vert 1.00, 0.00, 0.00 ! 02
vert 1.00, 1.00, 0.00 ! 03
vert 0.00, 1.00, 0.00 ! 04

edge 1, 2, 1, 0, 0 ! 01
edge 2, 3, 1, 0, 0 ! 02
edge 3, 1, 1, 2, 0 ! 03
 
edge 3, 4, 1, 0, 0 ! 04
edge 4, 1, 1, 0, 0 ! 05

vect 0, 0, 1
vect 0, 0, 1
 
pgon 3, 1, 0, 1, 2, 3
pgon 3, 2, 0, 4, 5, -3

Operating system used: Mac Intel-based

[Lingwisyer]

I have not tried using pgons, but does it work without the the vert 4 points?

[RhinoX]

No, it’s not possible. The points must be defined first before the edges can be determined.

[Lingwisyer]

I mean if you defined a single triangle rather than two with a common edge.

[MF BIM]

Hi @RhinoX ,

It seems that the issue is coming from the definition of pgon1 (the 3rd argument) in edge 04 (line 31)

I'm not familiar with primitive elements but from my understanding, arguments pgon1 and pgon2 are the indices of the polygons they refer to. Edges 04 and 05 are edges of the second polygon so pgon1 should be 2 I think.

It you do this, does it work ?

edge 3, 4, 2, 0, 0 ! 04
edge 4, 1, 2, 0, 0 ! 05