[Mapserver-users] Shape file and AUTO projection problems

Le Ngoc Lam v0463 at n-koei.co.jp
Tue Jan 13 23:27:25 EST 2004


I guess its projection is wrong.
Try modification below.
Regards,

Lam
---------


EXTENT -180.0 -90.0 180.0 90.0
  IMAGECOLOR 255 255 255

  IMAGETYPE GIF

  PROJECTION
#    "init=epsg:4318"
  "init=epsg:4326"

  END

  WEB
    IMAGEPATH '/home/jcable/SOFTWARE/MAPPING_STUFF/http/htdocs/tmp/'
    IMAGEURL '/htdocs/tmp/'
    LOG '/home/jcable/SOFTWARE/MAPPING_STUFF/http/htdocs/tmp/log'

    METADATA
        "wms_srs"                   "EPSG:4318 AUTO:42003 AUTO:42001
AUTO:42002 AUTO:42004   AUTO:42008"
    END

  END


  # Start of LAYER DEFINITIONS
---------------------------------------------
  LAYER # country polygon layer begins here
    NAME Country
    DATA "/scratch/jcable/shape_files/country"
    STATUS DEFAULT
    TYPE LINE

    PROJECTION
#      "init=epsg:4318"
  "init=epsg:4326"

    END

    CLASS
      #COLOR 232 0 0
      OUTLINECOLOR 232 0 0
    END
  END # country polygon layer ends here
  # End of LAYER DEFINITIONS -------------------------------

END # end of map file/object



----- Original Message -----
From: "Jay Cable" <jcable at gi.alaska.edu>
To: <mapserver-users at lists.gis.umn.edu>
Sent: Wednesday, January 14, 2004 3:15 AM
Subject: [Mapserver-users] Shape file and AUTO projection problems


>
> Hello,
> I am having problems using shapefiles and the AUTO:42003 projection.  When
> displaying views of data the encompass the entire earth, mapserver appears
> to draw a lot of extra lines to the origin.
>
> Here is a sample image with this problem:
> http://oldlady.gina.alaska.edu/~jcable/broken.gif
>
> The problem appears to go away when the area displayed is reduced:
> http://oldlady.gina.alaska.edu/~jcable/working.gif
>
>
> I believe the shapefiles are correct, as they are sample shape files
> provided by ERSI.  I have also tried other shapefiles and encountered the
> same problem.
>
> The problem does not appear to occur with other projections I tried.
>
> Any suggestions as to how I can get around or fix this?  Am I doing
> something wrong?  I tried adjusting the extent with no effect.
>
> I am using mapserver 4.0, but also tried the latest 4.0.1, and it does the
> same thing.
>
> Thanks in advance,
>   -Jay Cable
>   jcable at gi.alaska.edu
>
> -----------------------------------------------------------------------
>
> Here is what my map file looks like:
>
>   EXTENT -180.0 -90.0 180.0 90.0
>   IMAGECOLOR 255 255 255
>
>   IMAGETYPE GIF
>
>   PROJECTION
>     "init=epsg:4318"
>   END
>
>   WEB
>     IMAGEPATH '/home/jcable/SOFTWARE/MAPPING_STUFF/http/htdocs/tmp/'
>     IMAGEURL '/htdocs/tmp/'
>     LOG '/home/jcable/SOFTWARE/MAPPING_STUFF/http/htdocs/tmp/log'
>
>     METADATA
>         "wms_srs"                   "EPSG:4318 AUTO:42003 AUTO:42001
AUTO:42002 AUTO:42004   AUTO:42008"
>     END
>
>   END
>
>
>   # Start of LAYER DEFINITIONS
> ---------------------------------------------
>   LAYER # country polygon layer begins here
>     NAME Country
>     DATA "/scratch/jcable/shape_files/country"
>     STATUS DEFAULT
>     TYPE LINE
>
>     PROJECTION
>       "init=epsg:4318"
>     END
>
>     CLASS
>       #COLOR 232 0 0
>       OUTLINECOLOR 232 0 0
>     END
>   END # country polygon layer ends here
>   # End of LAYER DEFINITIONS -------------------------------
>
> END # end of map file/object
>
>
>
>
> ****************************************************************
> Jay Cable                                GINA/ION
> tel (907) 474-1856                       Geophysical Institute
> jcable at gi.alaska.edu                     University of Alaska
>                             P.O. Box 757320
>                                          Fairbanks, AK 99775-7320
> *****************************************************************
> _______________________________________________
> Mapserver-users mailing list
> Mapserver-users at lists.gis.umn.edu
> http://lists.gis.umn.edu/mailman/listinfo/mapserver-users
>




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