org.proj4

Class Proj4

java.lang.Object

org.proj4.Proj4

All Implemented Interfaces:

Proj4Factory

public class Proj4
extends Object
implements Proj4Factory

This is the public test class to try the jproj api. Reads data from file. The input file has three lines of header:
1) source projection code or option
2) destination projection code or option
3) rows of the data
and after the header the data are put in the format: x0 y0 z0 x1 y1 z1 x2 y2 z2 ...etc etc example: srcProj: +proj=latlong +datum=WGS84 destProj: +init=epsg:32632 rows: 2 ...datatriplets

Constructor Summary

Constructors

Constructor and Description
Proj4(String proj) constructor used to instatiate a single projection.
Proj4(String srcProj, String destProj) constructor used to instantiate the object for a further reproiection.

Method Summary

Methods

Modifier and Type	Method and Description
LinkedHashMap	getDestProjInfo()
LinkedHashMap	getProjInfo()
LinkedHashMap	getSrcProjInfo()
void	printDestProjInfo() print the destination projection info to standard output
void	printProjInfo() print the projection info to standard output
void	printSrcProjInfo() print the source projection info to standard output
void	transform(ProjectionData dataTP, long point_count, int point_offset) method to reproject a dataset from the source projection to the destination projection as defined in the constructor

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Proj4

public Proj4(String proj)

constructor used to instatiate a single projection. This is used if the goal is to simply get information about a projection definition

Parameters:

proj - the projection definition

Proj4

public Proj4(String srcProj,
     String destProj)

constructor used to instantiate the object for a further reproiection. From the definitions the source and destination projection are created.

Parameters:

srcProj -

destProj -

Method Detail

transform

public void transform(ProjectionData dataTP,
             long point_count,
             int point_offset)

method to reproject a dataset from the source projection to the destination projection as defined in the constructor

Specified by:

transform in interface Proj4Factory

Parameters:

dataTP - the data set to reproject

point_count -

point_offset -

getProjInfo

public LinkedHashMap getProjInfo()

Specified by:

getProjInfo in interface Proj4Factory

Returns:

the projection info as a hashmap

getSrcProjInfo

public LinkedHashMap getSrcProjInfo()

Specified by:

getSrcProjInfo in interface Proj4Factory

Returns:

the source projection info as a hashmap

getDestProjInfo

public LinkedHashMap getDestProjInfo()

Specified by:

getDestProjInfo in interface Proj4Factory

Returns:

the destination projection info as a hashmap

printProjInfo

public void printProjInfo()

print the projection info to standard output

printSrcProjInfo

public void printSrcProjInfo()

print the source projection info to standard output

printDestProjInfo

public void printDestProjInfo()

print the destination projection info to standard output