drasys.or.geom.geo.proj
Interface ProjectionI

All Known Subinterfaces:

ConicI

All Known Implementing Classes:

Conic, Projection, Mercator, Albers, LambertConic

public interface ProjectionI

extends TransformI

An interface used to abstractly access all geographic projections.

References:

Map Projections : A Reference Manual
    Lev M. Bugayevskiy, John P. Snyder / Hardcover / Published 1995
Flattening the Earth : Two Thousand Years of Map Projections
    John P. Synder, John P. Snyder / Paperback / Published 1997

Method Summary
PointI	forward(PointI point)           Returns a projected point.
RangeI	forward(RangeI range)           Returns a projected range.
double	getEasting()           Gets the easting value for the projection.
double	getNorthing()           Gets the northing value for the projection.
PointI	inverse(PointI point)           Returns an inverse projected point.
RangeI	inverse(RangeI range)           Returns an inverse projected range.
void	setEasting(double easting)           Sets the easting value for the projection.
void	setEllipsoid(EllipsoidI ellipsoid)
void	setNorthing(double northing)           Sets the northing value for the projection.

 

Methods inherited from interface drasys.or.geom.TransformI

forwardTransform, forwardTransform, inputCoordinateSystem, inverseTransform, inverseTransform, outputCoordinateSystem

 

Method Detail

setEllipsoid

public void setEllipsoid(EllipsoidI ellipsoid)

setEasting

public void setEasting(double easting)

Sets the easting value for the projection. The easting value will be added to all projected 'x' coordinates after the transform and subtracted from from all inverse projected 'x' coordinates before the inverse transform.

getEasting

public double getEasting()

Gets the easting value for the projection. The easting value will be added to all projected 'x' coordinates after the transform and subtracted from from all inverse projected 'x' coordinates before the inverse transform.

setNorthing

public void setNorthing(double northing)

Sets the northing value for the projection. The northing value will be added to all projected 'y' coordinates after the transform and subtracted from from all inverse projected 'y' coordinates before the inverse transform.

getNorthing

public double getNorthing()

Gets the northing value for the projection. The northing value will be added to all projected 'y' coordinates after the transform and subtracted from from all inverse projected 'y' coordinates before the inverse transform.

forward

public PointI forward(PointI point)
               throws GeomException

Returns a projected point. Converts from the 'geo' coordinate system to the 'rect2' coordinate system.

inverse

public PointI inverse(PointI point)
               throws GeomException

Returns an inverse projected point. Converts from the 'rect2' coordinate system to the 'geo' coordinate system.

forward

public RangeI forward(RangeI range)
               throws GeomException

Returns a projected range. Converts from the 'geo' coordinate system to the 'rect2' coordinate system.

inverse

public RangeI inverse(RangeI range)
               throws GeomException

Returns an inverse projected range. Converts from the 'rect2' coordinate system to the 'geo' coordinate system.