Hi Milo.
I think your problem is that you have no defined the MAXSCALE of the medium
cities. This parameter tell mapserver at wich scale will stop drawing the
elements of a layer (MINSCALE is how far in (MAXSCALE how far out) will be
drawed the elements).
So, i think if you add a MAXSCALE to the medium cities CLASS your problem
will be solved:
LABELITEM 'City'
CLASSITEM 'City_Population'
CLASS
MAXSCALE 80000
NAME '0 < City_Population < 100000'
EXPRESSION ( ([City_Population] >= 0) AND ([City_Population] <=
100000) )
STYLE
SYMBOL 'CIRCLE'
SIZE 3
OUTLINECOLOR 0 0 0
COLOR 255 170 0
END
LABEL
TYPE TRUETYPE
FONT Arial
SIZE 8
COLOR 255 255 250
#OUTLINECOLOR 255 255 255
ANTIALIAS TRUE
MINFEATURESIZE 500
ANGLE 0
FORCE false
END
END
CLASS
NAME '100001 < City_Population < 500000'
EXPRESSION ( ([City_Population] >= 100001) AND ([City_Population] <=
500000) )
STYLE
SYMBOL 'CIRCLE'
SIZE 4
OUTLINECOLOR 0 0 0
COLOR 255 170 0
END
LABEL
TYPE TRUETYPE
FONT Arial
SIZE 10
COLOR 255 255 250
#OUTLINECOLOR 255 255 255
ANTIALIAS TRUE
MINFEATURESIZE 500
ANGLE 0
FORCE false
END
END
The MAXSCALE value will depend on your map.
I hope it works.
Rodrigo.
On 7/10/07, Milo van der Linden <[EMAIL PROTECTED]> wrote:
Hello list,
I have been puzzling a bit and am not finding the correct answer.
I have a city mapinfo tab that holds population values. I want to display:
- The labels of the major cities when zoomed out far,
- add the labels of medium cities when I zoom in further
- show all labels when zoomed in max
Currently my syntax in the mapfile is as below, but I can't get a map that
shows only the labels of the major cities!
Any help is appreciated
LABELITEM 'City'
CLASSITEM 'City_Population'
CLASS
NAME '0 < City_Population < 100000'
EXPRESSION ( ([City_Population] >= 0) AND ([City_Population] <=
100000) )
STYLE
SYMBOL 'CIRCLE'
SIZE 3
OUTLINECOLOR 0 0 0
COLOR 255 170 0
END
LABEL
TYPE TRUETYPE
FONT Arial
SIZE 8
COLOR 255 255 250
#OUTLINECOLOR 255 255 255
ANTIALIAS TRUE
MINFEATURESIZE 500
ANGLE 0
FORCE false
END
END
CLASS
NAME '100001 < City_Population < 500000'
EXPRESSION ( ([City_Population] >= 100001) AND ([City_Population] <=
500000) )
STYLE
SYMBOL 'CIRCLE'
SIZE 4
OUTLINECOLOR 0 0 0
COLOR 255 170 0
END
LABEL
TYPE TRUETYPE
FONT Arial
SIZE 10
COLOR 255 255 250
#OUTLINECOLOR 255 255 255
ANTIALIAS TRUE
MINFEATURESIZE 500
ANGLE 0
FORCE false
END
END
--
Milo van der Linden
[EMAIL PROTECTED]
[EMAIL PROTECTED]
[EMAIL PROTECTED]
http://www.3dsite.nl
De informatie in dit bericht reflecteerd mijn persoonlijke mening en niet
die van een bedrijf of instantie. Aan de informatie kunnen geen rechten
worden ontleend. Indien dit bericht onderdeel is van een forum, mailing-list
of community dan gelden automatisch de bijbehorende voorwaarden.
