Converting Coordinates

Former Member over 13 years ago

I am using BaseCamp 3.2.1 and I have exported my waypoints into a csv file. I am seeing the lat/long coordinates in decimal degrees, which is fine. I now want to convert these coordinates into Texas State Plane 4202 (North Central Texas) coordinates. I am using a program called CORPSCON provided by the Army Corps of Engineers (http://crunch.tec.army.mil/software/corpscon/corpscon.html) for my coordinate conversions. I tell CORPSCON that the coordinates are in Geographic NAD83 format and I want to convert them to State Plane NAD83 (zone 4202) coordinates, but it is spitting out the wrong results. Are the coordinates that BaseCamp exports actual NAD83 Geographic coordinates? I can't figure out why I am not getting the right conversions. Any help is greatly appreciated!

-BillyK

0 Former Member over 13 years ago

In BaseCamp, go to Options (Ctrl-O) > Measurement, Position.

There you can select the format for the position that BaseCamp will export.

0 Former Member over 13 years ago

...I tell CORPSCON that the coordinates are in Geographic NAD83 format...

The default datum in BaseCamp (and most GPS software) is WGS 84. NAD83 is another datum. The datum is independent of the coordinate format.

In short you need to set both, in Basecamp, to whatever CORPSCON expects.

0 Former Member over 13 years ago

Does the Ctrl-O measurement/ Position option apply to the Mac version?

I cannot find a thread in the Basecamp mac version forums that addresses exporting waypoint data as UTM's. Does the Ctrl-O / measurement/ position only work in the windows version?

My gps is set to UTM for recording. Oregon 450.