[GRASS5] keeping vertical closed polygons

[Radim Blazek]

Pawalai Kraipeerapun wrote:
>  
> Hi,
> 
> I want to keep vertical closed polygons in GRASS vector format. Right now, GRASS6 doesn't support this thing. GRASS6 has a plan to implement this??? If yes, when it's completed? Or could anyone tell me how can I implement this thing in GRASS6?
> 
> Thanks in advance,
> Pawalai

You can write vertical polygons to GRASS vector, but you cannot do much 
with them. The type in ascii is 'F', for example:
F  4
  -2032.90491562301 -450.325319137854 148.9606628418
  -1390.11730593647 315.719123981124 148.9606628418
  -1390.11730593647 315.719123981124 108.9606628418
  -2032.90491562301 -450.325319137854 108.9606628418


Radim