AGG support

John Novak jnovak at NOVACELL.COM
Fri Mar 9 22:23:27 EST 2007


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> 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>,
> "Kralidis,Tom [Burlington]" <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
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