[maplab-users] Re: projection type

[Jeff McKenna]

Are you sure the units are 'MILES'?  Could they be 'DD' (decimal degrees) ?

Other than that i would try to send a message to the main mapserver list 
  (http://lists.umn.edu/archives/mapserver-users.html) where there of 
lots of users available to help you display your data.

jeff




Nasir Mahmood wrote:
> Jeff,
>  
> Thank a lot for your detailed description to get out of problem. I 
> followed your instructions but problem exists. I added folllowing lines 
> to map file..
> 
>     MAP
> 
>     NAME "Demo"
> 
>     STATUS ON
> 
>     EXTENT -31.283337 27.637497 31.581963 71.120804
> 
>     SIZE 400 300
> 
>     SHAPEPATH "./data"
> 
>     SYMBOLSET "./etc/symbols.sym"
> 
>     FONTSET "./etc/fonts.txt"
> 
>     IMAGETYPE PNG
> 
>     IMAGECOLOR 255 255 255
> 
>     UNITS MILES
> 
>         LAYER
> 
>         NAME "Europe"
> 
>         STATUS ON
> 
>         DATA "europe"
> 
>         TYPE POLYGON
> 
>             CLASS
> 
>             NAME "Europe"
> 
>             OUTLINECOLOR 60 60 60
> 
>             COLOR 255 255 0
> 
>             END
> 
>         END
> 
>         # Layer
> 
>     END
> 
>  
> Best Regards,
> Nasir
> 
> */Jeff McKenna <jmckenna at dmsolutions.ca>/* wrote:
> 
>     Nasir,
> 
>     I'll attempt to get you going.
> 
>     The easiest way to view your new shapefile data is to remove all of the
>     other layers in the mapfile...leave only your new layer.
> 
>     Next you need to specify the correct extents for the layer. Modify the
>     EXTENT parameter in the mapfile
>     (http://mapserver.gis.umn.edu/doc44/mapfile-reference.html#map) to your
>     data's extents. You should be able to get the extents of your data view
>     in ArcView.
> 
>     MAP
>     NAME "DEMO"
>     STATUS ON
>     EXTENT -2200000 -712631 3072800 3840000 <----- modify this line
> 
>     Next modify the UNITS parameter of your mapfile to machine your data's
>     units (http://mapserver.gis.umn.edu/doc44/mapfile-reference.html#map).
>     Arcview will display the cursor coordinates which may help you
>     determine
>     what units it is.
> 
>     MAP
>     NAME "DEMO"
>     STATUS ON
>     EXTENT -2200000 -7! 12631 3072800 3840000
>     SIZE 400 300
>     SHAPEPATH "./data"
>     SYMBOLSET "./etc/symbols.sym"
>     FONTSET "./etc/fonts.txt"
>     IMAGETYPE PNG
>     IMAGECOLOR 255 255 255
>     UNITS METERS <------ change this
> 
> 
>     Now you should be able to view your data in MapEdit. The way i just
>     explained avoids any issues regarding projections. It's the simplest
>     way to see your data in MapServer.
> 
>     If you want to use your data with data in another projection..well
>     that's more difficult. Let me know if you want to get into that.
> 
>     jeff
> 
> 
> 
> 
> 
> 
>     Nasir Mahmood wrote:
>      > Hi Zak,
>      > I dont know how can I come to know it exactly. I tried to find
>     out the
>      > properties in ArcView 3.3
>      > *Category: Projections of the World*
>      > *Type: Geographic*
>      > Looking forward to hear you....
>      >
>      > Best Regards,
>      > Nasir
>      >
>      > */Zak James /* wrote:
>      >
>      > Hi Nasir,
>      >
>      > It's lik! ely that the problem is a mismatch between the way your own
>      > shapefiles are projected and the projection in the mapfile. Do you
>      > know what projection the data contained in the shapefile are in?
>      >
>      > zak
>      >
>      > On Fri, 17 Dec 2004 10:31:24 -0800 (PST), Nasir Mahmood
>      > wrote:
>      > > Hi all,
>      > >
>      > > I am trying to create map files using MapEdit.
>      > > I have include only layer into Map object. It works with the shp
>      > files given
>      > > with tutorial of Maplab but it doesn't with my own shp files. It
>      > doesn't
>      > > give any error with my shp files but an empty map image.
>      > >
>      > > Please, let me know where could be a problem....
>      > >
>      > > Best Regards,
>      > > Nasir
>      > >
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>      >
>      >
>      > --
>      > --
>      > Zak James
>      > Applications and Software Development
>      > DM Solutions Group Inc.
>      > http://www.dmsolutions.ca
>      >
>      >
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-- 
Jeff McKenna
DM Solutions Group Inc.
http://www.dmsolutions.ca