AGG support

[Vincent Schut]

Trying to get agg rendering to work, I found that mapserver only looks 
for the agg includes in AGG_DIR (=/usr)/include. However, my gentoo 
system has in it's devine wisdom decided to install these header files 
in /usr/include/agg2. Alas, agg does not provide an agg-config utility 
to find the header files location. Currently I have rigourously adapted 
configure to look where these files are, but that's of course no long 
term solution. As this might also occur with other linux distro's, maybe 
even in slightly different locations, it might be something the 
mapserver autoconf wizards want to look at :)

Cheers,
Vincent.

John Novak wrote:
> Tom,
>
> Please do provide input on your experiences with the new AGG code,
>
> Best,
>
> John Novak
>
> On 3/9/07, *Steve Lime* < Steve.Lime at dnr.state.mn.us 
> <mailto:Steve.Lime at dnr.state.mn.us>> wrote:
>
>     Use at your own peril, but you can certainly play with it. John
>     Novak has done the bulk of the work to date
>     with new input coming from Assefa. It looks promising so many
>     thanks for the excellent work to date.
>
>     I don't believe there are extensions to the Windows Makefile but I
>     did commit configure support for *nix
>     yesterday. Works fine on my SuSE box. Just do a --with-agg=path to
>     agg when running configure and
>     it should work. You need agg version 2.4 at this point. Agg
>     doesn't have install scripts so I just left it
>     where I built it ( e.g. /usr/local/src/agg-2.4). Configure will
>     look for that type of setup or in the system libs.
>
>     To use simply plop a OUTPUTFORMAT in your mapfile like so:
>
>     OUTPUTFORMAT
>         NAME                myAggRgb
>         DRIVER      AGG/PNG
>         IMAGEMODE   RGB
>       END
>
>     RGB and RGBA are supported.
>
>     The AGG driver uses GD as the buffer manager, so basically AGG
>     renders to a GD image so we can use GD
>     file writing and any of the other GD writing code. That allows us
>     to concentrate on pieces of the rendering
>     while still creating complete images. At the moment I believe
>     polygons and lines are rendered using AGG
>     while markers and text fallback on their GD counterparts.
>
>     Steve
>
>
>     >>> On 3/9/2007 at 1:36 PM, in message
>     <2576812186CDD411BF1500508B6DCE9511B30C88 at ecnwri1.ontario.int.ec.gc.ca
>     <mailto:2576812186CDD411BF1500508B6DCE9511B30C88 at ecnwri1.ontario.int.ec.gc.ca>>,
>     "Kralidis,Tom [Burlington]" < Tom.Kralidis at EC.GC.CA
>     <mailto:Tom.Kralidis at EC.GC.CA>> wrote:
>     > Just noticed mapagg.cpp in CVS HEAD.
>     >
>     > Is / can this be tried out?  Any build details?
>     >
>     > ..Tom
>
>
>
>
> -- 
> John Novak
> Novacell Technologies and the Old Topo Depot
> http://www.novacell.com
> 877-old-topos