[Mapserver-users] Why do so many interatate shields display?

Fri Oct 17 17:38:02 PDT 2003

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I am trying to create a map with interatate shields (.gif) and interstate
labels (shape attribute) displayed.
I cannot seem to get just one or a couple of highway shields to display.  It
appears that every segment of the line
receives a gif.  I've tried dissolving, chaining, weeding data to no avail.
I am able to get the label to appear how I want using the MINDISTANCE
parameter, but too many shields are still displaying.
Any hints that can be provided are much appreciated!

Thanks,
Larry Hurst
GIS Specialist
Digital Map Products
575 Anton Bl., Suite 750
Costa Mesa, CA 92626
(714) 432-7637 ext. 2360
#################################################################
#          Labeling Settings : TeleAtlas Interstates		
#################################################################
  LAYER
    NAME "IntL"
	TILEINDEX teleatlas_global_index
    	TILEITEM   FILES 
  	TYPE POINT
  	DATA "00disweed"
  	STATUS ON
  	LABELITEM "ROUTENUM"
  	CLASSITEM "ROUTENUM"
  	LABELMAXSCALE 600000
	LABELCACHE ON
    	MAXSCALE 600000
    	MINSCALE 1
	MAXFEATURES 2
 CLASS
    	#EXPRESSION ([RTETYP] = 1) 
    	#COLOR 240 0 0
    	#SIZE 2
    	#SYMBOL 2
    	SYMBOL 'interstate_shield'
   LABEL
      COLOR 240 240 240
      #BACKGROUNDCOLOR 0 0 0
      FONT arial-narrow
	TYPE truetype
      SIZE 8
	POSITION CC
      PARTIALS FALSE
      BUFFER 1
      ANGLE 0	
      #MINFEATURESIZE 5
	MINDISTANCE 200
    END
  END
  END

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<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
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<TITLE>Why do so many interatate shields display?</TITLE>
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<P><FONT SIZE=3D2 FACE=3D"Arial">I am trying to create a map with =
interatate shields (.gif) and interstate labels (shape attribute) =
displayed.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">I cannot seem to get just one or a =
couple of highway shields to display.  It appears that every =
segment of the line</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">receives a gif.  I've tried =
dissolving, chaining, weeding data to no avail.</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">I am able to get the label to appear =
how I want using the MINDISTANCE parameter, but too many shields are =
still displaying.</FONT></P>

<P><FONT SIZE=3D2 FACE=3D"Arial">Any hints that can be provided are =
much appreciated!</FONT>
</P>

Thanks,
 Larry Hurst
 GIS Specialist
 Digital Map Products
 575 Anton Bl., Suite 750
 Costa Mesa, CA 92626
 (714) 432-7637 ext. 2360
 #################################################################</=
FONT>
 #          Labeling =
Settings : TeleAtlas Interstates    =
        
 #################################################################</=
FONT>
   LAYER
     NAME =
"IntL"
         TILEINDEX teleatlas_global_index
     =
    TILEITEM   FILES 
   =
      TYPE POINT
   =
      DATA "00disweed"
   =
      STATUS ON
   =
      LABELITEM "ROUTENUM"
   =
      CLASSITEM "ROUTENUM"
   =
      LABELMAXSCALE 600000
         LABELCACHE ON
     =
    MAXSCALE 600000
     =
    MINSCALE 1
         MAXFEATURES 2
  CLASS
     =
    #EXPRESSION ([RTETYP] =3D 1) 
     =
    #COLOR 240 0 0
     =
    #SIZE 2
     =
    #SYMBOL 2
     =
    SYMBOL 'interstate_shield'
    LABEL
       =
COLOR 240 240 240
       =
#BACKGROUNDCOLOR 0 0 0
       =
FONT arial-narrow
         TYPE truetype
       =
SIZE 8
         POSITION CC
       =
PARTIALS FALSE
       =
BUFFER 1
       =
ANGLE 0   
       =
#MINFEATURESIZE 5
         MINDISTANCE 200
     END
   END
   END

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