[mapserver-users] Map Labels Problem
Jeff McKenna
jmckenna at gatewaygeomatics.com
Fri Nov 7 00:30:49 EST 2008
Kusum wrote:
> Dear All
>
> I am trying to use mercator projection in my mapfile.
> Also I am using a raster image along with my shp data
> At first level it does not show the raster image
> But when it does it hides the labels on map.
>
>
> u can see this link
> http://mapxl.com/interactive-maps/world-map11.php
>
> I am confused
> my map file is
> MAP
> EXTENT -180 -90 180 90
>
> UNITS MILES
> SIZE 550 450
> SHAPEPATH "/home/mapxlco/public_html/World-Data"
> FONTSET "./etc/fonts.txt"
> RESOLUTION 96
> IMAGETYPE png
> INTERLACE OFF
> PROJECTION
> "proj=merc"
> #'init=EPSG:3785'
> END
>
> OUTPUTFORMAT
> NAME png
> DRIVER "GD/PNG"
> MIMETYPE "image/png"
> IMAGEMODE RGB
> FORMATOPTION INTERLACE=OFF
> TRANSPARENT OFF
> END
>
> WEB
> TEMPLATE "legend.php"
> HEADER "map_header.html"
> FOOTER "map_footer.html"
> #IMAGEPATH "C:/ms4w/apps/maplab-2.2/workshop/tmp/"
> #IMAGEURL "../tmp/"
> IMAGEPATH "/home/mapxlco/public_html/tmp/"
> IMAGEURL "/tmp/"
> METADATA
> END # Metadata
> END
>
>
> #World_Background
> LAYER
> NAME "background"
> STATUS DEFAULT
> PROJECTION
> #"init=epsg:3785"
> END
> TYPE POLYGON
> DATA "background"
> TOLERANCE 300
> #CLASSITEM "COUNTRIES"
> CLASS
> NAME "World Background"
> COLOR 141 189 232
> OUTLINECOLOR 111 157 253
> Template void
> END
> END
>
>
>
> #World Continents
> LAYER
> NAME "continents"
> STATUS DEFAULT
> PROJECTION
> #"init=epsg:3785"
> END
> TYPE POLYGON
> DATA "World_Continents"
> MINSCALE 1500000
> LABELMAXSCALE 2500000
> LABELMINSCALE 1430359
> LABELITEM "CONTINENT"
> TOLERANCE 300
> CLASSITEM "CONTINENT"
> CLASS
> NAME "World Outline"
> EXPRESSION "Europe"
> #COLOR 241 238 232
> COLOR 235 240 230
> OUTLINECOLOR 111 157 253
> LABEL
> ANGLE auto
> ANTIALIAS TRUE
> FONT arial
> MAXSIZE 256
> MINSIZE 4
> SIZE 10
> TYPE TRUETYPE
> BUFFER 0
> COLOR 0 0 0
> FORCE TRUE
> MINDISTANCE 0
> MINFEATURESIZE 0
> OFFSET 0 10
> OUTLINECOLOR 255 255 255
> PARTIALS FALSE
> POSITION LL
> END
> Template void
> END
> CLASS
> NAME "World Outline"
> EXPRESSION "North America"
> #COLOR 241 238 232
> COLOR 235 240 230
> OUTLINECOLOR 111 157 253
> LABEL
> ANGLE auto
> ANTIALIAS TRUE
> FONT arial
> MAXSIZE 256
> MINSIZE 4
> SIZE 10
> TYPE TRUETYPE
> BUFFER 0
> COLOR 0 0 0
> FORCE TRUE
> MINDISTANCE 0
> MINFEATURESIZE 0
> OFFSET 20 10
> OUTLINECOLOR 255 255 255
> PARTIALS FALSE
> POSITION LR
> END
> Template void
> END
> CLASS
> NAME "World Outline"
> #COLOR 241 238 232
> COLOR 235 240 230
> OUTLINECOLOR 111 157 253
> LABEL
> ANGLE auto
> ANTIALIAS TRUE
> FONT arial
> MAXSIZE 256
> MINSIZE 4
> SIZE 10
> TYPE TRUETYPE
> BUFFER 0
> COLOR 0 0 0
> FORCE TRUE
> MINDISTANCE 0
> MINFEATURESIZE 0
> OFFSET 0 0
> OUTLINECOLOR 255 255 255
> PARTIALS FALSE
> POSITION CC
> END
> Template void
> END
> END
>
> #World Countries
> LAYER
> NAME "countries"
> STATUS DEFAULT
> MAXSCALE 1530359
> LABELMAXSCALE 1430359
> PROJECTION
> #"init=epsg:3785"
> END
> TYPE POLYGON
> DATA "World_Countries"
> LABELITEM "NA2DESC"
> TOLERANCE 300
> CLASSITEM "NA2DESC"
> CLASS
> NAME "World Countries"
> #COLOR 241 238 232
> COLOR 235 240 230
> OUTLINECOLOR 220 220 220
> LABEL
> ANGLE auto
> ANTIALIAS TRUE
> FONT arial-bold
> MAXSIZE 256
> MINSIZE 4
> SIZE 9
> TYPE TRUETYPE
> BUFFER 0
> COLOR 90 90 90
> MINDISTANCE 0
> MINFEATURESIZE 30
> OFFSET 0 0
> OUTLINECOLOR 255 255 255
> PARTIALS FALSE
> POSITION CC
> FORCE FALSE
> wrap ' '
> END
> Template void
> END
> END
> #World_Background
> LAYER
> NAME "background1"
> STATUS ON
> PROJECTION
> "proj=latlong"
> END
> TYPE RASTER
> DATA "wsiearth.tif"
> TEMPLATE "ttt.html"
> END
> #Countries Boundary
> LAYER
> NAME "countries"
> STATUS DEFAULT
> MAXSCALE 1430359
> PROJECTION
> #"init=epsg:3785"
> END
> TYPE LINE
> DATA "Country_Boundary"
> TOLERANCE 300
> #CLASSITEM "CONTINENT"
> CLASS
> NAME "World Outline"
> #COLOR 204 225 253
> OUTLINECOLOR 167 167 167
> Template void
> END
> END
>
>
> so on..........
>
>
>
> I am not getting the palce of error
>
> Please suggest.
>
>
> Regards
> Kusum
Here are my quick thoughts:
- make sure your EXTENT and UNITS parameters are for the specified
output MAP projection (if your output projection is in meters then your
extents and units must be in meters)
- you need more parameters in your projection block than what you are
currently trying to use...to solve this the easiest way is to always use
the corresponding EPSG lookup code (found in /ms4w/proj/nad/epsg)
- the next time you attach a mapfile it is easier for the community if
you create a tiny mapfile showing your problem (i.e. only 2 layers or
less)...that way it is easier to comment and understand your mapfile
- how about avoiding projection problems and making sure that all of
your layers are in the same projection? If you can, that way is FASTEST
for display and AVOIDS the projection problems you are facing.
(pre-processing the data, in this case using tools to reproject the data
to the same projection, is always the best option, rather than forcing
MapServer to reproject on-the-fly)
those are my quick thoughts on your issues.
--
Jeff McKenna
FOSS4G Consulting and Training Services
http://www.gatewaygeomatics.com/
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