I am trying to reproject a michigan state land shapefile which is the NAD83/ Michigan Oblique Mercator EPSG:3078 to the WPG84 EPSG:4326 projection. However when i try to do this my map gets squished down. I have tried the commands in "Reprojecting from MGRm to WGS84 using open-source tools" with no luck. I need to get these coordinates into a decimal degrees format. Thanks
Ever since I posted in "Reprojecting from MGRm to WGS84 using open-source tools" last year, I've discovered that none of the EPSG definitions that supposedly describe Michigan GeoRef work correctly. I suspect that it is a flaw in the GDAL/OGR tools, and this has been discussed repeatedly in the GDAL developers forum, but no fix has been made. This is especially problematical for open source users in Malaysia, where a rectified skew orthomorphic (RSO) projection system is used country-wide. (Michigan GeoRef is an instance of an RSO projection, as far as I understand.)
I've also discovered that using uDIG to reproject from GeoRef to whatever seems to work, but I can't figure out why. I'm under the impression that uDIG also uses the GDAL/OGR libraries for conversion, but I may be wrong. I've been meaning to send the uDIG developers a query on that, but haven't gotten around to it yet.
Anyway, take a look at a tutorial I developed for our local N. Michigan township users using uDIG to convert GeoRef to MI State Plane. You can follow the same procedure and see if it works for you in converting to WGS84. (Please let me know if it does.) The tutorial is at: http://www.townshipgis.com/resources/problems-and-workarounds/converting-michigan-georef-to-state-plane-using-open-source-tools
Reproject on the fly:
Create a copy of a vector in a different CRS: