[mapserver-users] Map Labels Problem
Kusum
kusum at infobase.in
Fri Nov 7 01:09:36 EST 2008
Where exactly shoud we define the projection
at the top of mapfile or with each layer
I am trying to use
'init=epsg:54004'
but its not changing the data projection
if I use "proj=merc"
only the projection of raster image changes and not the other data layers.
Any suggestions please
Kusum
--------------------------------------------------
From: "Jeff McKenna" <jmckenna at gatewaygeomatics.com>
Sent: Friday, November 07, 2008 11:00 AM
To: <mapserver-users at lists.osgeo.org>
Subject: Re: [mapserver-users] Map Labels Problem
> 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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