superclass of all the projections the main proj methods are held here More...

Inheritance diagram for Projections:

Public Member Functions
String	getProjInfo ()
	public method to call the native getProjInfo More...

String	getEllipseInfo ()
	public method to call the native getEllispdInfo More...

void	printProjInfo ()
	print to standard output the proj info in a nice format More...

LinkedHashMap	mapProjInfo ()
	return all the proj info into a Linked Hashmap More...

abstract void	prepareData (ProjectionData dataTP)
	if there is some operation to perform on the input data, this is the right moment (ex. More...

abstract void	prepareTransformedData (ProjectionData dataTP)
	this takes care that the reprojected data are in the correct format (ex. More...

Protected Member Functions
native String	getProjInfo (String proj)
	get all the projection informations needed from the projection code (reproduces pj_get_def() of the proj api) More...

native String	getEllipsInfo (String proj)
	get the ellipsoid parameters from the projection code More...

native void	transform (double[] firstCoord, double[] secondCoord, double[] values, String srcCodeString, String destCodeString, long pointcount, int pointoffset)
	native call to the reprojections routines of proj More...

void	doTheTransform (Projections srcProj, ProjectionData dataTP, long point_count, int point_offset)
	do the transform. More...

void	degreeToRadiant (double[] la, double[] lo)
	transform latitude and longitude from degree to radiant format More...

void	radiantToDegree (double[] la, double[] lo)
	transform latitude and longitude from radiant to degree format More...

Detailed Description

Member Function Documentation

native String getProjInfo ( String proj )

protected

Parameters

the	proj code or options

Returns: the info String

native String getEllipsInfo ( String proj )

protected

Parameters

the	proj code or options

Returns: the info String

Referenced by Projections.getEllipseInfo().

native void transform	(	double[]	firstCoord,
		double[]	secondCoord,
		double[]	values,
		String	srcCodeString,
		String	destCodeString,
		long	pointcount,
		int	pointoffset
	)

protected

Parameters

firstCoord	array of x
secondCoord	array of y
values	array of z
srcCodeString	source projection code or option
destCodeString	destination projection code or option
pointcount
pointoffset

Referenced by Projections.doTheTransform().

String getProjInfo ( )

Returns: quoting the proj api:"Returns the PROJ.4 command string that would produce this definition expanded as much as possible. For instance, +init= calls and +datum= defintions would be expanded"

Referenced by Projections.mapProjInfo(), and Projections.printProjInfo().

String getEllipseInfo ( )

Returns: the list of ellipsoid parameters

References Projections.getEllipsInfo().

Referenced by Projections.mapProjInfo(), and Projections.printProjInfo().

void printProjInfo ( )

References Projections.getEllipseInfo(), and Projections.getProjInfo().

LinkedHashMap mapProjInfo ( )

References Projections.getEllipseInfo(), and Projections.getProjInfo().

abstract void prepareData ( ProjectionData dataTP )

abstract

latlong from degree to radiant) -> i.e. do whatever is needed

Parameters

dataTP

void doTheTransform	(	Projections	srcProj,
		ProjectionData	dataTP,
		long	point_count,
		int	point_offset
	)

protected

The srcProjection is passed to the destination proj and the transformation takes place. Then the resulting transformed data are passed to the destProj, so that the destProj in case can take care of final transformation of data (ex. if the destProj is latlong, the values have to be set beck to degrees

Parameters

srcProj	object holding the source projection
dataTP	the data set
point_count
point_offset

References Projections.transform(), ProjectionData.x, ProjectionData.y, and ProjectionData.z.

abstract void prepareTransformedData ( ProjectionData dataTP )

abstract

latlong has to be transformed back to radiant)

Parameters

dataTP the data set

void degreeToRadiant	(	double[]	la,
		double[]	lo
	)

protected

Parameters

la
lo

Referenced by LatLong.prepareData().

void radiantToDegree	(	double[]	la,
		double[]	lo
	)

protected

Parameters

la
lo

Referenced by LatLong.prepareTransformedData().

Public Member Functions

Protected Member Functions

Detailed Description

Member Function Documentation