[Mapserver-users] Scaling TrueType Labels

[Steve Lime]

You need to set a SYMBOLSCALE value. That is, the value at which symbols
or fonts are
their default size.

>>> "Tom Melhuish" <tmelhuish at webinsightsinc.com> 05/02/03 10:42AM >>>
Hi,
I can't seemed to be able to scale labels up and down as the map zoom
in and
out. It always remains the same as initial size. When I load the
mapfile, it
doesn't returns any errors. The TRUETYPE font are installed correctly
because they follow my street  centerline data fine. I thought that all
it
requires is to set LABEL's TYPE to TRUETYPE, and specifying MINSIZE
and
MAXSIZE....am I missing something?

I'm using Mapserver 3.6.4 with Postgres on Redhat 8.0.

Here are some scenario's I tried and the results:

	  SIZE 12
	  MINSIZE 8		Result => font is 12 pixels at any zoom
size
	  MAXSIZE 18

	  #SIZE 12
	  MINSIZE 8		Result => font is 8 pixels at any zoom
size
	  MAXSIZE 18

	  #SIZE 12
	  MINSIZE 18	Result => font is 8 pixels at any zoom size
	  MAXSIZE 8

	  SIZE 12
	  MINSIZE 18	Result => font is 8 pixels at any zoom size
	  MAXSIZE 8


This is what a portion of my mapfile look like:

MAP
  #
  # Start of map file
  #
  NAME "MSapplet"
  STATUS ON
  EXTENT 2190000 640000 2200000 650000 # JC extents

  SIZE 600 600
  SHAPEPATH "data"
  FONTSET "fonts/font.list"
  IMAGECOLOR 255 255 255
  UNITS FEET
  SCALE 24000
  # you may need to change this to match your MapServer build
  IMAGETYPE PNG

 LAYER
    NAME "streets"
    GROUP "gp_streets"
    STATUS ON
    # Get the lines from the 'the_geom' column of the 'jcctrline'
table
    DATA "the_geom from jcctrline"
    TYPE LINE
    CONNECTIONTYPE postgis
    # Connect to a remote spatial database
    CONNECTION "user=gisusr password=gisusr dbname=gisdb
host=localhost
port=5432"
    MAXSCALE 30000
	MINSCALE 30
	LABELMAXSCALE 30000
	LABELMINSCALE 1000
    LABELITEM "name"
    TEMPLATE "ttt.html"
    CLASS
      #  EXPRESSION /./
      NAME "streets"
      COLOR 75 75 75
      LABEL
        TYPE TRUETYPE
        FONT "times_regular"
        SIZE 12
	  MINSIZE 8
	  MAXSIZE 18
        POSITION CC
        ANGLE AUTO
        BUFFER 2
        MINDISTANCE 200
        MINFEATURESIZE AUTO
        COLOR 0 0 0
        ANTIALIAS true
      END
    END
  END  # streets Layer
  END

Thanks for your help,

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