[mapserver-users] Re: GD rendering: polygons vs lines
Lime, Steve D (DNR)
Steve.Lime at state.mn.us
Thu Jan 27 03:01:43 EST 2011
To clarify GD is not being removed. It's still alive and kicking. It's just more isolated now. That is, AGG doesn't need GD in 6.0 like it has in the past. AGG, GD, Cairo all exist as rendering peers. We have stripped back the GD functionality to be just 8-bit output though. That's what it's good for.
So, rendering issues with GD are and will be of concern. You might try a 6.0 build and see if that helps at all. Much of the rendering behavior is much more consistent across renderers thanks to Thomas' work.
From: mapserver-users-bounces at lists.osgeo.org [mapserver-users-bounces at lists.osgeo.org] On Behalf Of Gregor at HostGIS [gregor at hostgis.com]
Sent: Wednesday, January 26, 2011 10:31 PM
To: Stephen Woodbridge
Cc: mapserver-users at lists.osgeo.org
Subject: Re: [mapserver-users] Re: GD rendering: polygons vs lines
> A while back someone, maybe Thomas Bonfort, did some performance tests
> comparing GD to AGG, and if I recall AGG was only slightly slower and in
> at least a couple of cases it was faster the GD.
In our case, GD renders in 1 second and AGG in 3 in these few tests
cases we're concerned with. We're thus allowing a choice between "fast
mode" and "good quality mode"
> Also I should point out that the GD renderer is getting removed
> So I'm not sure there is much interest in chasing issue
Well, that's good to know. Thanks for the heads-up. I'll wait and see if
someone comes up with any ideas before I give up entirely.
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