Re: [gdal-dev] MapInfo Geometry Precision Issues

2012-05-28 Thread Luca Sigfrido Percich
Hi all, MapInfo stores coordinates in 32 bit integers (binary tab format), and converts them back into floating point when loading data. The conversion is done taking the boundary into account. The greater the boundary, the lower the precision. That's why lat/lon coordinates are stored with great

Re: [gdal-dev] MapInfo Geometry Precision Issues

2012-05-26 Thread Chaitanya kumar CH
Murali, The mapinfo driver is not known for creating datasets with good precision. Projected coordinates can have an error of up to 0.02 http://www.gdal.org/ogr/drv_mitab.html http://trac.osgeo.org/gdal/browser/trunk/autotest/ogr/ogr_mitab.py#L106 On Sat, May 26, 2012 at 9:24 AM, Murali Krishna

[gdal-dev] MapInfo Geometry Precision Issues

2012-05-25 Thread Murali Krishna
I'm trying to create a MapInfo file using gdal ogr java bindings (version 1.9.0) with some point geometries. However the geometries in the created MapInfo file doesn't actually match with the values which i have used in creation. For example, I create a MapInfo feature with a point geometry and wi