[mapserver-users] RE: Hwy Shields

[Brent Fraser]

Johan,

   That's the "classic" way of doing it:
         layer 1 (line): line symbology
         layer 2 (anno): label with point symbol under the label

The "new" way is to use a STYLE object (referencing the point symbol) 
inside the LABEL object of the line layer so only one layer required.

Best Regards,
Brent Fraser


On 6/1/2011 1:15 PM, Johan Forsman wrote:
>> -----Original Message-----
>> From: mapserver-users-bounces at lists.osgeo.org [mailto:mapserver-users-
>> bounces at lists.osgeo.org] On Behalf Of Fawcett, David (MPCA)
>> Sent: Wednesday, June 01, 2011 10:50 AM
>> To: mapserver-users at lists.osgeo.org
>> Subject: [mapserver-users] Hwy Shields
>>
>> Does anyone have a highway shield example map file and symbol set that
>> they are willing to share?
>>
>> Thanks,
>>
>> David.
>>
>> _______________________________________________
>> mapserver-users mailing list
>> mapserver-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/mapserver-users
> I did this as one of the first "advanced" mapfile projects when I started with MapServer, so it probably is both inelegant and incorrect, but I used a line layer for the roads and an annotation layer for the labels. I don't recall precisely the reason I did an annotation layer, but it may have had to do with my preferred positioning of the labels.
>
> Here's an partial extract from the symbol set and mapfile:
>
> # Highway shields
> SYMBOL
> 	NAME 'interstate'
> 	TYPE pixmap
> 	IMAGE "interstate.png"
> END	
>
> LAYER   # Freeways at small scale
> 	DATA 'webmaps_LDOTD_2007_hwys'
> 	name freeways_small
> 	type line
> 	OPACITY 100
> 	status on
> 	labelitem "HWY_NUM"
> 	LABELCACHE on
> 	classitem "SHIELD"
> 	MINSCALEDENOM	250001
> 	class
> 		EXPRESSION "I"
> 		NAME "Interstate highways"
> 		style
> 			color 0 92 230
> 			width 3
> 			antialias true
> 		end
> 		style
> 			color 254 254 254
> 			width 1
> 			antialias true
> 		end
> 	end #class
> end #layer freeways_small
>
> LAYER   # shields and labels for freeways at small scale
> 	DATA 'webmaps_LDOTD_2007_hwys'
> 	name freeways_small_labels
> 	type annotation
> 	OPACITY 100
> 	status on
> 	labelitem "HWY_NUM"
> 	LABELCACHE on
> 	classitem "SHIELD"
> 	MINSCALEDENOM	250001
> 	class
> 		EXPRESSION "I"
> 		style
> 			SYMBOL 'interstate'
> 		end
> 		label
> 			type truetype
> 			antialias true
> 			font arial
> 			size 8
> 			position cc
> 			ANGLE 0
> 			color 254 254 254
> 			partials false
> 			MINDISTANCE 200
> 			MINFEATURESIZE auto
> 		end #label
> 	end #class
> end #layer freeways_small_labels
>
> Hope that helps get you started.
>
> Take care,
>
> Johan Forsman
> Geologist
> Safe Drinking Water Program
> Louisiana Department of Health and Hospitals
> Telephone: 225.342.7309
> Telefax: 225.342.7303
>
>
>
> _______________________________________________
> mapserver-users mailing list
> mapserver-users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapserver-users
>