[GRASS5] How does GRASS stores it topology information?

GRASS GIS GRASS GIS developer
1

Hi Everyone,

does anyone knows how the topology file(binary) is built/constructed?

Thanks

2

Flavio said:

Hi Everyone,

does anyone knows how the topology file(binary) is built/constructed?

How about reading the programmer's manual ? :wink:

http://mpa.itc.it/markus/grass50progman/node48.html

Moritz

3

Hi Moritz,

Thanks for the info. I have read the programmer's manual, but unfortunately it
does not contain the information I was looking for regarding the internal
structure of the dig_plus file (I guess that is where topology information is
stored, right?).
The reason I would like to know this is because I was wondering if it is
possible to store the topology's info on a database instead of in a binary
file.
Do you know where I can get more information on how to do that?
Thanks

Flavio

Flavio said:
> Hi Everyone,
>
> does anyone knows how the topology file(binary) is built/constructed?

How about reading the programmer's manual ? :wink:

http://mpa.itc.it/markus/grass50progman/node48.html

Moritz

4

Hi all,

On my eternal quest to find out how the dig_plus file is contructed, I have
only found the following reference on the programmer's manual:

" Vector Index and Pointer File:..For this reason, and since the internal structure of the dig_plus file is
complex, the format of this file will not be described. "

so, I am still looking for someone how might know where I can get more
detailed information about this file.
Any information will be greatly appriciated.

thanks.

Em Terça 10 Fevereiro 2004 12:30, Moritz Lennert escreveu:

Flavio said:
> Hi Everyone,
>
> does anyone knows how the topology file(binary) is built/constructed?

How about reading the programmer's manual ? :wink:

http://mpa.itc.it/markus/grass50progman/node48.html

Moritz