[UMN_MAPSERVER-USERS] Antarctica disappears with Mercator projection

[Ei Fujioka]

Hello experts,

I'm developing an online mapper where you can change the projection.
http://seamap.env.duke.edu/prod/mapservice/onlinemap/oms_main_v2.phtml
The default projection is the geographic WGS84.
You can change this by switching to [OPTIONS] tab and hit [Projection] 
button. In the popup window, if you choose "World Mercator", Antarctica 
disappears.
I tried to change latitude values in EXTENT (e.g. -90, -85, etc.) but 
didn't make difference.

Any idea why this happens and how to work around?

It's an ESRI's shapefile and Antarctica is projected properly in 
Mercator with ArcGIS.

The excerpt from mapfile below.

MAP
  NAME "OBIS MAP"
  UNITS DD
  IMAGETYPE png
  EXTENT -180 -83.6236 180 83.6236
  PROJECTION
    "init=epsg:4326"
  END

  LAYER
    NAME "Continents"
    STATUS DEFAULT
    DATA "countries"
    TYPE POLYGON
    TRANSPARENCY 0
    PROJECTION
      "init=epsg:4326"
    END
    CLASS
      NAME "Countries"
      COLOR 204 204 204
      OUTLINECOLOR 153 153 153
    END
    METADATA
      "wms_abstract" "Countries"
      "TITLE" "Countries"
      "wms_title"  "Countries"
    END
  END
END

Thanks,

Ei

--
======================
  Ei Fujioka
  Research Associate
  Duke University

  (919) 613-8021
  [EMAIL PROTECTED]
======================