es.prodevelop.gvsig.mobile.fmap.proj
Interface IProjection
- All Known Implementing Classes:
- Projection
- public interface IProjection
Basic interface for any projection class.
- Author:
- jldominguez
getScale
public double getScale(double minX,
double maxX,
double width,
double dpi)
- Computes the current scale
- Parameters:
minX
- min x value (map units)maxX
- max x value (map units)width
- map width in pixelsdpi
- dots per inch
- Returns:
- the current scale (return 1000 if current scale is 1:1000)
getAbrev
public java.lang.String getAbrev()
- Returns:
- the projection EPSG abbreviation
getUnitsAbbrev
public java.lang.String getUnitsAbbrev()
- Returns:
- the abbreviation of the unit used ("m", "º", etc)
getMetersPerProjUnit
public double getMetersPerProjUnit()
- Returns:
- the length of 1 map unit.