Re: [Opengrads-devel] Shapefile extension: first crack

[Arlindo da S. <da...@al...>]

On Nov 26, 2007 1:00 PM, Efren Serra <efr...@me...> wrote:
> Arlindo,
>
> I can help you with 7) below.
>

That would be great. Are you familiar with the Shapefile C library?

                http://shapelib.maptools.org/

Graziano is using it to read shapefiles and I see that t can be used
to create files as well.
My understanding of shapefiles is limited. Skimming through the
documentation I see that it is possible to save polygons to a
shapefile. Is there a way to encode things like:

- color
- transparency
- line thickness

For example, if one saves line segments from a contour plot, each with
different color, some with dashed lines, can they be easily displayed
into GIS software?

Regarding filled polygons, I remember Brian mentioning that shapefiles
have very specific rules about them, and that he would have to rewrite
the shading function to be shapefile compliant.

  Thanks,

         Arlindo



-- 
Arlindo da Silva
da...@al...