[mapserver-dev] strange behavior when size != gif size (UMN 5.4.2)

[teeschke]

Dear List..

actually I'm comparing my current used Mapserver (5.0.2) with the actual
(5.4.2) and I detected a strange side effect when a size assigned to a gif
symbol:

size < gif size: the symbol gets brightly
size > gif size: the symbol gets darkly

here is my sample code for your better reproduction:

Part of my Symbolset:

SYMBOL
    NAME 'some_gif_symbol'
    TYPE PIXMAP
    IMAGE "some_gif_symbol.gif"
END

Part of my Mapfile:

LAYER
	NAME 'dw_mg_geom_view'
	STATUS ON
	TYPE POINT
	DATA "some_shape"
	TEMPLATE 'foo.html'
	LABELITEM 'KARTO_NR'
	CLASS
		NAME '1-3 (size < gif size)'
		EXPRESSION (1 <= [KARTO_NR] AND [KARTO_NR] <= 3)
		STYLE
			SYMBOL 'some_gif_symbol'
			SIZE 10 #equals gif size -3
		END #STYLE
		LABEL
			FONT arial
			TYPE TRUETYPE
			SIZE 9
			POSITION AUTO
			COLOR 0 0 0
		END #LABEL
	END #CLASS
	CLASS
		NAME '3-6 (size = gif size)'
		EXPRESSION (3 < [KARTO_NR] AND [KARTO_NR] <= 6)
		STYLE
			SYMBOL 'some_gif_symbol'
			SIZE 13 #equals gif size
		END #STYLE
		LABEL
			FONT arial
			TYPE TRUETYPE
			SIZE 9
			POSITION AUTO
			COLOR 0 0 0
		END #LABEL
	END #CLASS
	CLASS
		NAME '6-9 (size > gif size)'
		EXPRESSION (6 < [KARTO_NR] AND [KARTO_NR] <= 9)
		STYLE
			SYMBOL 'some_gif_symbol'
			SIZE 16 #equals gif size +3
		END #STYLE
		LABEL
			FONT arial
			TYPE TRUETYPE
			SIZE 9
			POSITION AUTO
			COLOR 0 0 0
		END #LABEL
	END #CLASS
END #LAYER

the 13x13 gif symbol:
http://n2.nabble.com/file/n3479658/some_gif_symbol.gif 

the getmap result:
http://n2.nabble.com/file/n3479658/getmap.png 

This phenomenon happens only in the 5.4.2! the 5.0.2 works correct. 
In the Changelog I found something: "Made sure computation of default symbol
size is consistent with older versions (#2963)"


Thanks and best regards..
..Daniel

-- 
View this message in context: http://n2.nabble.com/strange-behavior-when-size-gif-size-UMN-5-4-2-tp3479658p3479658.html
Sent from the Mapserver - Dev mailing list archive at Nabble.com.