[mapserver-users] AGG vs. GD: Label placement problems

[Stephen Woodbridge]

I'm not sure if this is the cause or not but if you look carefully there 
is a difference in the spacing between characters. This will cause the 
bbox for the label to be larger? maybe and it will bump off labels that 
now collide with the longer labels. You can try decreasing the BUFFER on 
the label to allow them to be closer together. But I suspect that beyond 
that there is not much you can do because that labels are just 
physically larger than before.

-Steve W.

Doyon, Jean-Francois wrote:
> G'day,
> 
> We're experimenting with AGG, and have noticed a little problem ... not sure of the source, or whether we can address it through a mapfile though.
> 
> Note these 2 images:
> 
> http://atlas.nrcan.gc.ca/gd.gif
> http://atlas.nrcan.gc.ca/agg.png
> 
> One is GD/GIF, the other is AGG/PNG.  All other things are equal (MapServer 5.0.2).
> 
> Labels that are to the left of the point seem to be placed differently ... Look top-right ("Les Escoumins", "Saint Anne de Port Neuf", etc ...) for an example, though it happens all over the place I think.  Labels to the right of the point however seem ok.
> 
> Is this a bug? A design change?  Can anything be done from the mapfiel to mitigate this?
> 
> Oh and what's the recommended FreeType version these days? This MapServer is runnning against 2.1.10.
> 
> Thank you,
> 
> Jean-François Doyon
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