[Mapserver-users] Labels get unreadable over
background-color and -image
Stefan Schwarzer
stefan.schwarzer at grid.unep.ch
Fri Apr 4 07:28:09 EST 2003
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Hi Michael,
yupp, that's it. When I use "ANTIALIAS false" in my map-file, the ugly=20
corona around the labels disappear. Thanks for your help!
Stefan
>Hi Stefan,
>i would assume this is an effect of the anti-aliasing of the truetype
>font labels. Your map image is transparent but only for a certain color
>index, around the labels are these anti-alias halos that don't have the
>transparent index value since their color index is in a range between
>your label color and (?)white.
>Just a guess.
>Cheers, Michael
>
>Stefan Schwarzer schrieb:
>
> > Hi list,
> >
> > here is a question that I raised in similar form already a couple of
> > weeks ago. But nobody seemed to have an answer to it. Can that be?!
> >
> > I attached an screenshot of my map. The blue color is a simple
> > style-background-color:
> > <span style=3D"position: absolute; top: 40px; left: 40px;
> > background-color: #2F72AF"><img name=3D"map1" ....</span>
> > As soon as some labels appear in front of this background-color, they
> > get this strange look, rendering them almost unreadable.
> >
> > Any idea what the cause is and how I can solve this?
> >
> > Thanks for any hints.
> >
> > Best wishes,
> >
> > Stefan
> >
> >
> > _______________________________________
> >
> > Stefan Schwarzer
> > Consultant on GEO
> >
> > UNEP/DEWA/GRID-Geneva
> > Chemin des Anemones 11
> > CH - 1219 Chatelaine
> > Switzerland
> >
> > Tel: (+41) 22.917.83.49
> > Fax: (+41) 22.917.80.29
> >
> > Email: stefan.schwarzer at grid.unep.ch
> > Internet: http://geodata.grid.unep.ch/
> > _______________________________________
>
>--
>-----------------------------------------------------------
>Michael Schulz in medias res
>Dipl.-Geologe Gesellschaft f=FCr
> Informationstechnologie mbH
> Sautierstr. 38, 79104 Freiburg
> 0761 55695-95 (Fax 96)
>mschulz at webgis.de www.webgis.de
_______________________________________
Stefan Schwarzer
Consultant on GEO
UNEP/DEWA/GRID-Geneva
Chemin des Anemones 11
CH - 1219 Chatelaine
Switzerland
Tel: (+41) 22.917.83.49
Fax: (+41) 22.917.80.29
Email: stefan.schwarzer at grid.unep.ch
Internet: http://geodata.grid.unep.ch/
_______________________________________=20
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<font size=3D3>Hi Michael,<br><br>
yupp, that's it. When I use "ANTIALIAS false" in my map-file,
the ugly corona around the labels disappear. Thanks for your
help!<br><br>
Stefan<br><br>
<blockquote type=3Dcite class=3Dcite cite>Hi Stefan,<br>
i would assume this is an effect of the anti-aliasing of the
truetype<br>
font labels. Your map image is transparent but only for a certain
color<br>
index, around the labels are these anti-alias halos that don't have
the<br>
transparent index value since their color index is in a range
between<br>
your label color and (?)white.<br>
Just a guess.<br>
Cheers, Michael<br><br>
Stefan Schwarzer schrieb:<br><br>
> Hi list,<br>
><br>
> here is a question that I raised in similar form already a couple
of<br>
> weeks ago. But nobody seemed to have an answer to it. Can that
be?!<br>
><br>
> I attached an screenshot of my map. The blue color is a simple<br>
> style-background-color:<br>
> <span style=3D"position: absolute; top: 40px; left:=20
40px;<br>
> background-color: #2F72AF"><img name=3D"map1"
....</span><br>
> As soon as some labels appear in front of this background-color,
they<br>
> get this strange look, rendering them almost unreadable.<br>
><br>
> Any idea what the cause is and how I can solve this?<br>
><br>
> Thanks for any hints.<br>
><br>
> Best wishes,<br>
><br>
> Stefan<br>
><br>
><br>
> _______________________________________<br>
><br>
> Stefan Schwarzer<br>
> Consultant on GEO<br>
><br>
> UNEP/DEWA/GRID-Geneva<br>
> Chemin des Anemones 11<br>
> CH - 1219 Chatelaine<br>
> Switzerland<br>
><br>
> Tel: (+41) 22.917.83.49<br>
> Fax: (+41) 22.917.80.29<br>
><br>
> Email: stefan.schwarzer at grid.unep.ch<br>
> Internet:
<a href=3D"http://geodata.grid.unep.ch/"=
eudora=3D"autourl">http://geodata.grid.unep.ch/</a><br>
> _______________________________________<br><br>
--<br>
-----------------------------------------------------------<br>
Michael
Schulz &nbs=
p; &n=
bsp;
in medias res<br>
Dipl.-Geologe &nb=
sp; &=
nbsp;
Gesellschaft f=FCr<br>
&nbs=
p; &n=
bsp;
Informationstechnologie mbH<br>
&nbs=
p; &n=
bsp;
Sautierstr. 38, 79104 Freiburg<br>
&nbs=
p; &n=
bsp;
0761 55695-95 (Fax 96)<br>
mschulz at webgis.de  =
; &nb=
sp;
<a href=3D"http://www.webgis.de/"=
eudora=3D"autourl">www.webgis.de</a></blockquote>
<x-sigsep><p></x-sigsep>
<x-tab> </x-tab>_____________=
__________________________<br><br>
</font><font size=3D2><x-tab>  =
;</x-tab><b>Stefan
Schwarzer<br>
</b><x-tab> </x-tab>Consultan=
t
on GEO<br><br>
<x-tab> </x-tab>UNEP/DEWA/GRI=
D-Geneva<br>
<x-tab> </x-tab>Chemin des
Anemones 11<br>
<x-tab> </x-tab>CH - 1219
Chatelaine<br>
<x-tab> </x-tab>Switzerland<b=
r><br>
<x-tab> </x-tab>Tel: (+41)
22.917.83.49<br>
<x-tab> </x-tab>Fax: (+41)
22.917.80.29<br><br>
<x-tab> </x-tab>Email:
stefan.schwarzer at grid.unep.ch<br>
<x-tab> </x-tab>Internet:
<a href=3D"http://geodata.grid.unep.ch/"=
eudora=3D"autourl">http://geodata.grid.unep.ch/</a><br>
</font><font=
size=3D3><x-tab> </x-tab>___=
____________________________________</font></body>
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