[mapserver-users] Re: GD rendering: polygons vs lines

Stephen Woodbridge woodbri at swoodbridge.com
Thu Jan 27 20:01:08 EST 2011


Steve,

Thanks for clarifying that.

Sorry for the mistake on that.
I guess I need to go back and reread the RFC on this.

-Steve W

On 1/27/2011 3:01 AM, Lime, Steve D (DNR) wrote:
> 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.
>
> Steve
>
> ________________________________________ 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.
>
> -- HostGIS, Open Source solutions for the global GIS community Greg
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