[mapserver-users] Horizontal line appears at the edge with circle symbol

[Ei Fujioka]

Thanks, Steve, for the quickest response.

I managed to upgrade the GD library and recompile PHP, Mapserver and the 
problem is gone.

GD: 2.0.35 (previously 2.0.33 from yum)
PHP: 5.2.6 (previously 5.1.6 from yum)
Mapserver: 5.2

Ei


Stephen Woodbridge wrote:
> This is a know bug. I think it is: 
> http://trac.osgeo.org/mapserver/ticket/1719
> 
> -Steve W
> 
> Ei Fujioka wrote:
>> Dear experts,
>>
>> I'm upgrading Mapserver from 4.2 to 5.2 and experiencing a very 
>> annoying problem.
>>
>> There appears a horizontal line at the edge of the map drawn by 
>> Mapserver 5.2 when the symbol is set to "circle". This didn't happen 
>> with Mapserver 4.2.
>> When I change the symbol to "square", the line doesn't appear.
>>
>> I've tried various settings (e.g. SIZE, ANGLE, ANTIALIAS etc.) with no 
>> luck.
>>
>> Does anyone have any idea what's wrong with it?
>>
>> ** Examples: **
>> Mapserver 5.2 with circle symbol:
>> http://seamap-dev.env.duke.edu/seamap2/main/seamap2_gm.php?sid=horizontal_line_with_circle&mode=draw_map&outputformat=PNG24&layer_name=dist_sp_01deg&layer_type=point&mapsize=256%2B256&mapext=-90%2C27.059125784374068%2C-84.375%2C31.95216223802497 
>>
>>
>> Mapserver 5.2 with square symbol:
>> http://seamap-dev.env.duke.edu/seamap2/main/seamap2_gm.php?sid=no_line_with_square&mode=draw_map&outputformat=PNG24&layer_name=dist_sp_01deg&layer_type=point&mapsize=256%2B256&mapext=-90%2C27.059125784374068%2C-84.375%2C31.95216223802497 
>>
>>
>> ** Mapserver info. **
>> ./mapserv -v
>> MapServer version 5.2.0 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG OUTPUT=WBMP 
>> OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=FREETYPE SUPPORTS=ICONV 
>> SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER 
>> SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=GEOS INPUT=EPPL7 
>> INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
>>
>> ** Mapfile exerpt **
>>
>> MAP
>>   EXTENT -20001364 -15000982 20001253 15000982
>>   IMAGECOLOR 255 255 255
>>   IMAGETYPE gif
>>   SYMBOLSET "/var/www/seamap2/map/symbolset.map"
>>   SHAPEPATH "/data/shapefiles/"
>>   SIZE 256 256
>>   STATUS ON
>>   TRANSPARENT TRUE
>>   UNITS DD
>>   NAME "SEAMAP ONLINE MAPPER"
>>   PROJECTION
>>     "init=epsg:54004"
>>   END
>>
>>   LAYER
>>     CLASSITEM "_sp_tsn"
>>     CONNECTION "host=***"
>>     CONNECTIONTYPE POSTGIS
>>     DATA "_geom from (***) ***"
>>     NAME "zd_35"
>>     PROJECTION
>>       "init=epsg:4326"
>>     END
>>     STATUS ON
>>     TOLERANCE 0.1
>>     TYPE POINT
>>     CLASS
>>       NAME "Anatidae"
>>       EXPRESSION "174983"
>>       STYLE
>>         ANGLE 360
>>         COLOR 255 255 0
>>         OPACITY 50
>>         OUTLINECOLOR 0 0 0
>>         SIZE 9
>>         SYMBOL "circle"  : annoying horizontal line appears
>>         #SYMBOL "square" : when square is used, no horizontal line
>>       END
>>       TITLE "174983"
>>     END
>>     ...
>>
>>
> 

-- 
======================
   Ei Fujioka
   Research Associate
   Duke University

   (919) 613-8021
   efujioka at duke.edu
======================