Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am new to GIS, trying to read the GeoRef System for VMap by using the following code:

    OGRSpatialReference *ref = layer->GetSpatialRef();

    if( ref )
        QString georefSystem = ref->GetAttrValue( "GEOGCS" );

its reading and returning as NAD83 for the map which is WGS84. I confirmed the map is WGS84 by opening it in global mapper.

please let me know what I am missing here to get the correct Geo reference system.

My work environment is C++ in Windows 7.

Thanks, Prady

share|improve this question

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.