public double getLatitudeSpan ( ) { if ( this . mapView . getWidth ( ) > 0 && this . mapView . getHeight ( ) > 0 ) { LatLong top = fromPixels ( 0 , 0 ) ; LatLong bottom = fromPixels ( 0 , this . mapView . getHeight ( ) ) ; return Math . abs ( top . latitude - bottom . latitude ) ; } throw new IllegalStateException ( INVALID_MAP_VIEW_DIMENSIONS ) ; }
Computes vertical extend of the map view .