I'm calculating field of various features in my shapefile using QGIS.
I'm getting some sample length as 0.134914579766986.
I want to know in what unit (eg: meters, km etc) is the above value ?
Answer
This is a measurement of whatever map units are specified in your project properties or CRS.
Check out:
http://hub.qgis.org/wiki/quantum-gis/Getting_Started_with_CRS_and_Projections
OR
Page 9 of http://wiki.osgeo.org/images/3/38/Db_foss_m1.pdf
"To set project properties click "[Settings > Project Properties]" in the main menu. The "Project Properties" window will appear. Click on the "[General]" tab and set Project Title and Map Units."
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