[Mapserver-users] auto angle line labeling with mapscript
Michael Schulz
mschulz at webgis.de
Thu May 6 08:20:24 PDT 2004
Hi Sean and other mapscripters,
i was testing this for a while now on different machines and i am nearly
100% sure, that i can rule out mixing different versions of
mapscript/mapserver/gd or other libs.
I tried a mapserver 4.0.1 version on a linux box and everything works
fine there. Just on windows i get this behaviour.
Ok, in the next days i will try to use other versions of gd and
mapserver. If nothing helps, i will write again.
Thanks, Michael
Sean Gillies schrieb:
> Michael Schulz wrote:
>
>> Hi,
>>
>> I have a problem with labeling line features with the angle auto option.
>> If I draw a certain line layer with shp2img then everything works fine.
>> This is the corresponding image:
>> http://www.zopecms.de/bohrdatenportal/labeltest_shp2img.png
>>
>> If I use the same mapfile with python/mapscript then the situation
>> changes, the labels are drawn, but they get rotated in the wrong
>> direction but for a "correct" angle value.
>> This is the corresponding image:
>> http://www.zopecms.de/bohrdatenportal/labeltest_pymapscript.png
>>
>> These images were created with mapserver 4.0.1, gd-2.0.21,
>> freetype-2.1.7 on WIN2K.
>>
>> Has anyone using mapscript, perhaps in another flavor had the same
>> problems?
>>
>> TIA, Michael
>>
>> P.S.: Could this problem be related with this bug:?
>> http://mapserver.gis.umn.edu/bugs/show_bug.cgi?id=564
>
>
> Michael,
>
> The shp2img program is nothing more than a command line processing
> wrapper for the msLoadMap() and msDrawMap() functions in libmap.
> The equivalent in Python would be something like
>
> shp2img_map = mapscript.mapObj(mapfile_source)
> ... # process layer, extent options, &c.
> img = shp2img_map.draw()
> img.save(imgfile_destination)
>
> If you are using the draw() method of the mapObj class, all else being
> equal, you should see the same results from the two methods. Are you
> using mapObj().draw or are you using layerObj.draw()?
>
> Have you ruled out the possibility that you are mixing shp2img and
> _mapscript.so from different revisions?
>
> cheers,
> Sean
>
>
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>
--
-----------------------------------------------------------
Michael Schulz in medias res
Dipl.-Geologe Gesellschaft für
Informationstechnologie mbH
In den Weihermatten 66
79108 Freiburg
0761 55695-95 (Fax 96)
mschulz at webgis.de www.webgis.de/www.zopecms.de
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