I've been struggling trying to import a series of .e00 files. The coverages are in a Polar Stereographic Projection with the following parameters. Projection POLAR Units METERS Spheroid WGS84 Xshift 0.0000000000 Yshift 0.0000000000 Parameters 180 0 0.000 /* longitude of central meridian 60 0 0.000 /* latitude of true scale 0.00000 /* false easting (meters) 0.00000 /* false northing (meters) These no not correspond to the default MapInfo parameters so I constructed a custom polar projection (Brian Forrester provided some helpful insights several weeks ago) , changing the x and y origins to -180 and 60 (from 0 and 90). "UPS Beaufort", 20, 104, 7, -180, 60, 0.994, 0000000, 0000000 Importing using this projection yields objects well south of where they should be; i.e., in the North Pacific instead of the Arctic Ocean. The MapInfo projection parameters call for the origin latitude and origin longitude whereas the ArcInfo parameters are given as latitude of true scale and longitude of central meridian. The wording is quite different and the results confirm that there is not a one to one correspondence. I've done lots of experimenting but nothing jumps out as being the obvious solution, I can force the layer into the correct area but there is distortion, and one would hope there is a logical answer rather than trial and error. The other potential problem is the scaling factor....none is given for the .e00 file but MapInfo requires it in their projection parameters. So far I've had little success reconciling the differences in projection terminology between ArcInfo and MapInfo and most users seem versed only in their native program. If there is anyone versed in both worlds that can offer any insights I would certainly appreciate some sage advice. Declan _______________________________________________________________________ List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MapInfo-L" in the message body.
