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

[thomas bonfort]

This issue should now be fixed in trunk, if you have time to confirm
that would be great!
regards,
thomas

On Tue, Mar 18, 2008 at 2:10 PM, thomas bonfort
<thomas.bonfort at gmail.com> wrote:
> http://trac.osgeo.org/mapserver/ticket/2357
>
>
>
>  On Tue, Mar 18, 2008 at 1:05 PM, Doyon, Jean-Francois
>  <jdoyon at nrcan.gc.ca> wrote:
>  > Thanks Thomas, that'd be great ... is there a ticket open for this, or
>  >  should I open one? (I'd like to track progress on this issue ...)
>  >
>  >  J.F.
>  >
>  >
>  >
>  >  -----Original Message-----
>  >  From: mapserver-users-bounces at lists.osgeo.org
>  >  [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of thomas
>  >  bonfort
>  >  Sent: March 18, 2008 03:42
>  >  Cc: mapserver-users at lists.osgeo.org
>  >  Subject: Re: [mapserver-users] AGG vs. GD: Label placement problems
>  >
>  >  Yes, that's exactly the problem, as there's a difference of a few pixels
>  >  between the size of the label calculated by gd and the size it actually
>  >  takes when rendered with agg. I realize now that it can cause some quite
>  >  visible problems in the case you show here (labels to the left), as in
>  >  that case the few pixels difference can cause the label to overlap the
>  >  point symbol. I'll see if I can fix this in the days/weeks to come so
>  >  this can be included in 5.2
>  >
>  >  cheers,
>  >  thomas
>  >
>  >  On Mon, Mar 17, 2008 at 8:25 PM, Daniel Morissette
>  >  <dmorissette at mapgears.com> wrote:
>  >  > Doyon, Jean-Francois wrote:
>  >  >  >
>  >  >  > 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?
>  >  >  >
>  >  >
>  >  >  A few days ago, ThomasB wrote on mapserver-dev that in AGG mode, "gd
>  >  > is  still used [...] for the calculation of label sizes (thus some
>  >  > subtle  discreptancies in label placement, mostly visible if using a
>  >  > label
>  >  >  backgroundcolor)":
>  >  >
>  >  >  http://lists.osgeo.org/pipermail/mapserver-dev/2008-March/006868.html
>  >  >
>  >  >  Maybe that's what your running into? Hopefully Thomas will see this
>  >  > and  comment.
>  >  >
>  >  >  Daniel
>  >  >  --
>  >  >  Daniel Morissette
>  >  >  http://www.mapgears.com/
>  >  >
>  >  >
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