2

I'm using maptitude to populate latitude and longitude from a dataset for further mapping.

However, after geocoding on address, i'm being given lat/lons that make no sense. See the examples below

Lat         Lon
-72576271   42256531
-73203079   42712224
-70822976   42587150
-71089458   42339990
-71127491   42382567

Can anyone explain why this is happening? I can't seem to change the format to anything I recognize. When I take these out of maptitude the rest of my software can't make sense of it.

Can anyone tell me what I'm doing wrong?

1
  • 2
    Is the data in or near Massachusetts? If so, for some reason they're swapping the latitude and longitude and both values should be divided by 10e6. That is, lon:-72.576271 lat: 42.256531 – mkennedy Feb 27 '18 at 23:53
2

As @mkennedy suggests, Maptitude reports the coordinates in millionths. They are actually stored (and reported) as long integers - presumably for speed.

To convert to decimal degrees (in Maptitude's current coordinate system) then multiply by 1.0e-6.

Similarly when creating a Maptitude Coord object, multiple your coordinates by 1.0e6 and convert to long integer.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.