Add square nautical miles as a supported areal unit, add API

method for converting a distance unit to corresponding area unit
qgis · Feb 15, 2016 · 35c2d18 · 35c2d18
1 parent bd3bbc4
commit 35c2d18
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Showing 4 changed files with 344 additions and 78 deletions.
diff --git a/python/core/qgsunittypes.sip b/python/core/qgsunittypes.sip
@@ -31,6 +31,7 @@ class QgsUnitTypes
       SquareMiles, /*!< square miles */
       Hectares, /*!< hectares */
       Acres, /*!< acres */
+      SquareNauticalMiles, /*!< square nautical miles */
       SquareDegrees, /*!< square degrees, for planar geographic CRS area measurements */
       UnknownAreaUnit, /*!< unknown areal unit */
     };
@@ -113,5 +114,11 @@ class QgsUnitTypes
      */
     static double fromUnitToUnitFactor( AreaUnit fromUnit, AreaUnit toUnit );
 
+    /** Converts a distance unit to its corresponding area unit, eg meters to square meters
+     * @param distanceUnit distance unit to convert
+     * @return matching areal unit
+     */
+    static AreaUnit distanceToAreaUnit( QGis::UnitType distanceUnit );
+
 };