Label Class with expressions

Travis Kirstine GIS Tech tkirstine at JDBARNES.COM
Fri Jan 20 06:30:46 PST 2006


Hi,
I'm having some issues when trying to label one layer that has 2 classes
with the same expression one for drawing and one for labeling.
Below are two examples the first show how if I use two layers everything
works fine but when I combine the labels and the lines the label aren't
drawn

When you combine them into two layers the labeling works

#EXAMPLE 1 ########################
#<<<<<<<<<<<<-------- ROADS---------->>>>>>>>>>>>>>

	LAYER
		#DATA test/map_app_data/road_web
		DATA umap_display_data/road_web
		NAME "Roads"
		METADATA
			DESCRIPTION "Roads"
			RESET "ON"
		END
		TYPE LINE
		STATUS off
		MAXSCALE 1500000
		MINSCALE 50001
		CLASS
			NAME "Major Roads"							# HIGHWAYS/MAJOR ROADS
			MAXSCALE 1000000
			MINSCALE 50001
			EXPRESSION ([RD_CLASS]=1)
			SYMBOL 0
			COLOR 100 100 100
			#SIZE 2
		END
		CLASS
			NAME "Secondary Roads"							# SECONDARY ROADS
			MAXSCALE 300000
			MINSCALE 50001
			EXPRESSION ([RD_CLASS]=2)
			SYMBOL 0
			COLOR 120 120 120
			#SIZE 2
		END
		CLASS
			NAME "Local Roads"							# LOCAL ROADS
			MAXSCALE 100000
			MINSCALE 50001
			EXPRESSION ([RD_CLASS]=3)
			SYMBOL 0
			COLOR 140 140 140
			#SIZE 1
		END
	END
#<<<<<<<<<<<-----ROAD LABELS--------->>>>>>>>>

	LAYER
		#DATA test/map_app_data/road_web
		DATA umap_display_data/road_web
		NAME "Road Labels"
		METADATA
			DESCRIPTION "no display"
			RESET "ON"
		END
		TYPE ANNOTATION
		STATUS ON
		MAXSCALE 1000000
		MINSCALE 500
		LABELMAXSCALE 1000000
		LABELMINSCALE 500
		LABELITEM "STREETNAME"
		CLASS
			MAXSCALE 125000
			MINSCALE 500
			EXPRESSION ([RD_CLASS]=1)
			LABEL
				MINDISTANCE 300
				TYPE truetype
				COLOR 125 15 25
				OUTLINECOLOR  253 253 253
				FONT verdana
				SIZE 8
				ANTIALIAS true
			      ANGLE Auto
				POSITION cc
			END
		END
		CLASS
			MAXSCALE 50000
			MINSCALE 500
			EXPRESSION ([RD_CLASS]=2)
			LABEL
				MINDISTANCE 300
				ANTIALIAS true
				TYPE truetype
				COLOR 125 15 25
				OUTLINECOLOR  253 253 253
				FONT verdana
				SIZE 8
				ANGLE Auto
				POSITION cc
				BUFFER 10
			END
		END
		CLASS
			MAXSCALE 10000
			MINSCALE 500
			EXPRESSION ([RD_CLASS]=3)
			LABEL
				MINDISTANCE 300
				TYPE truetype
				ANTIALIAS true
				COLOR 125 15 25
				OUTLINECOLOR  253 253 253
				FONT verdana
				SIZE 8
				ANGLE Auto
				POSITION cc
			END
		END
	END

# EXAMPLE 2 ##############################
#<<<<<<<<<<<<-------- ROADS With  LABELS---------->>>>>>>>>>>>>>

	LAYER
		#DATA test/map_app_data/road_web
		DATA umap_display_data/road_web
		NAME "Roads"
		METADATA
			DESCRIPTION "Roads"
			RESET "ON"
		END
		TYPE LINE
		STATUS off
		MAXSCALE 1500000
		MINSCALE 500
		LABELMAXSCALE 1000000
		LABELMINSCALE 500
		LABELITEM "STREETNAME"
		CLASS
			NAME "Major Roads"							# HIGHWAYS/MAJOR ROADS
			MAXSCALE 1000000
			MINSCALE 50001
			EXPRESSION ([RD_CLASS]=1)
			SYMBOL 0
			COLOR 100 100 100
			#SIZE 2
		END
		CLASS
			MAXSCALE 125000
			MINSCALE 500
			EXPRESSION ([RD_CLASS]=1)
			LABEL
				MINDISTANCE 300
				TYPE truetype
				COLOR 125 15 25
				OUTLINECOLOR  253 253 253
				FONT verdana
				SIZE 8
				ANTIALIAS true
			      ANGLE Auto
				POSITION cc
			END
            END
		CLASS
			NAME "Secondary Roads"							# SECONDARY ROADS
			MAXSCALE 300000
			MINSCALE 50001
			EXPRESSION ([RD_CLASS]=2)
			SYMBOL 0
			COLOR 120 120 120
			#SIZE 2
		END
		CLASS
			MAXSCALE 50000
			MINSCALE 500
			EXPRESSION ([RD_CLASS]=2)
			LABEL
				MINDISTANCE 300
				ANTIALIAS true
				TYPE truetype
				COLOR 125 15 25
				OUTLINECOLOR  253 253 253
				FONT verdana
				SIZE 8
				ANGLE Auto
				POSITION cc
				BUFFER 10
			END
		END
		CLASS
			NAME "Local Roads"							# LOCAL ROADS
			MAXSCALE 100000
			MINSCALE 50001
			EXPRESSION ([RD_CLASS]=3)
			SYMBOL 0
			COLOR 140 140 140
			#SIZE 1
		END
		CLASS
			MAXSCALE 10000
			MINSCALE 500
			EXPRESSION ([RD_CLASS]=3)
			LABEL
				MINDISTANCE 300
				TYPE truetype
				ANTIALIAS true
				COLOR 125 15 25
				OUTLINECOLOR  253 253 253
				FONT verdana
				SIZE 8
				ANGLE Auto
				POSITION cc
			END
		END
	END


Travis



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