[GRASS5] Number of sites categories, DB and NVIZ

[Radim Blazek]

G_sites* functions were added only for old sites modules
and they should not be used in new code. 
OTOH, it is not probable that they would be removed in near future.

Radim

On 9/8/05, Massimo Cuomo <m.cuomo at acsys.it> wrote:
> Hello everybody.
> 
> I'm doing some work in NVIZ in order to visualize sites with every point
>   in a different color/size depending from their attributes.
> 
> I have a question related to the number of categories (cats) that link
> the site/vect to databases.
> 
> As I understand each vector could have many cats that (through their
> value and associated field) access the attributes in DB via
> "Vect_get_field" function.
> 
> However, the function "G_sites_open_old" that is used to open sites,
> assumes that there is only one associated field and uses only field 1
> (fi = Vect_get_field(Map, 1);) to fill the attributes arrays.
> 
> So in my code I'm assuming that this field is always 1 and that I have
> only one table I have to deal with. (I have only to read and not to
> write DB tables because I need only to visualize them)
> 
> Actually it is working fine with all the data I have been using until now.
> 
> The questions are:
> 0) Am I correct?
> 1) Are things going to change in the near future in further integration
> between vectors and sites?
> 
> Thank you in advance for any answer.
> 
> Massimo Cuomo
> Advanced Computer Sytems (ACS)
> 
> 
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