[mapserver-users] How to draw a specific image per point element?

Steve Lime Steve.Lime at dnr.state.mn.us
Fri Jan 16 13:39:19 EST 2009


You could bind the symbol to the photo_path item:

  CLASS
     STYLE
       SYMBOL [photo_path]
     END
  END

Assuming the file pointed to by photo path is usable by MapServer as a marker (e.g. a gif or png) then
this might work nicely. You wouldn't need the various classes in this scenario.

Steve

>>> On 1/10/2009 at 2:09 AM, in message <496857C3.7020404 at yahoo.it>, Ludovico
Bianchini <metlud at yahoo.it> wrote:
> - Windows Vista Home Premium
> - Postgres 8.1
> - jvm 1.6.0
> - tomcat 5.5
> - struts2
> - ms4w 2.3.0 (mapscript.jar, mapscript.dll, all other dlls taken from this
> pack)
> - postgresql-8.2-505.jdbc4.jar
> 
> Hi all,
> I have a database table of this type:
> TB_POINT (id NUMBER,
> geo GEOMETRY,
> title VARCHAR,
> icon VARCHAR,
> photo_path VARCHAR)
> 
> and a mapfile's layer as:
> LAYER
> 		NAME "tb_point"
> 		STATUS off
> 		TYPE POINT
> 		TRANSFORM true
> 		POSTLABELCACHE true
> 		CONNECTION "user=xxxxx password=xxxxx dbname=xxxxx host=xxxxx port=xxxxx"
> 		CONNECTIONTYPE postgis
> 		DATA "geo from xxxxx.tb_point"
> 		MAXSCALE 50000
> 		CLASSITEM "icon"
> 		
> 		CLASS
> 			EXPRESSION "1"
> 			STYLE
> 				BACKGROUNDCOLOR 255 255 255
> 				COLOR 0 0 0
> 				SYMBOL "a"
> 				MAXSIZE 10
> 			END
> 		END
> 		
> 		CLASS
> 			EXPRESSION "2"
> 			STYLE
> 				BACKGROUNDCOLOR 255 255 255
> 				COLOR 0 0 0
> 				SYMBOL "b"
> 				MAXSIZE 10
> 			END
> 		END
> 		
> END
> 
> Based on value of field "icon" mapserver draw symbol "a" or symbol "b".
> What I am trying to do is to draw, based on value on field "photo_path",
> an image saved in file system.
> I'll appreciate very much any suggestions, ideas or links to tutorials
> and related documentation.
> 
> Thanks in advance
> Ludovico
> 
> Chiacchiera con i tuoi amici in tempo reale! 
>  http://it.yahoo.com/mail_it/foot/*http://it.messenger.yahoo.com 
> 
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