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

[Efren S. <efr...@me...>]

I'm more familiar with the Shapefile Perl library than the Shapefile C
library.

-----Original Message-----
From: arl...@gm... [mailto:arl...@gm...] On =
Behalf
Of Arlindo da Silva
Sent: Monday, November 26, 2007 2:17 PM
To: efr...@me...
Cc: ope...@li...
Subject: Re: Shapefile extension: first crack


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



--=20
Arlindo da Silva
da...@al...