org.geotools.referencing.operation.projection
Class PlateCarree

Object
  extended by Formattable
      extended by AbstractMathTransform
          extended by MapProjection
              extended by EquidistantCylindrical
                  extended by PlateCarree
All Implemented Interfaces:
Serializable, MathTransform, MathTransform2D

public class PlateCarree
extends EquidistantCylindrical

Plate Carree (or Equirectangular) projection. This is a particular case of Equidistant Cylindrical projection where the standard_parallel_1 is 0°.

Since:
2.2
Author:
John Grange, Martin Desruisseaux
See Also:
"Equirectangular" on RemoteSensing.org, Serialized Form
Module:
modules/library/referencing (gt-referencing.jar)

Nested Class Summary
static class PlateCarree.Provider
          The math transform provider for an Plate Carree projection.
 
Nested classes/interfaces inherited from class EquidistantCylindrical
EquidistantCylindrical.SphericalProvider
 
Nested classes/interfaces inherited from class MapProjection
MapProjection.AbstractProvider
 
Field Summary
 
Fields inherited from class EquidistantCylindrical
standardParallel
 
Fields inherited from class MapProjection
centralMeridian, en0, en1, en2, en3, en4, excentricity, excentricitySquared, falseEasting, falseNorthing, globalScale, isSpherical, latitudeOfOrigin, LOGGER, scaleFactor, semiMajor, semiMinor
 
Fields inherited from class Formattable
SINGLE_LINE
 
Constructor Summary
protected PlateCarree(ParameterValueGroup parameters)
          Constructs a new map projection from the supplied parameters.
 
Method Summary
 ParameterDescriptorGroup getParameterDescriptors()
          Returns the parameter descriptors for this map projection. This is used for a providing a default implementation of MapProjection.getParameterValues(), as well as arguments checking.
protected  Point2D inverseTransformNormalized(double x, double y, Point2D ptDst)
          Transforms the specified (x,y) coordinates and stores the result in ptDst.
protected  Point2D transformNormalized(double x, double y, Point2D ptDst)
          Transforms the specified (λ,φ) coordinates (units in radians) and stores the result in ptDst (linear distance on a unit sphere).
 
Methods inherited from class EquidistantCylindrical
equals, getParameterValues, hashCode
 
Methods inherited from class MapProjection
getSourceDimensions, getTargetDimensions, getToleranceForAssertions, inv_mlfn, inverse, mlfn, resetWarnings, transform, transform, transform
 
Methods inherited from class AbstractMathTransform
createTransformedShape, derivative, derivative, ensureNonNull, formatWKT, getName, isIdentity, needCopy, rollLongitude, transform, transform, transform
 
Methods inherited from class Formattable
cleanupThreadLocals, toString, toWKT, toWKT, toWKT
 
Methods inherited from class Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface MathTransform2D
createTransformedShape, derivative
 
Methods inherited from interface MathTransform
derivative, isIdentity, toWKT, transform, transform, transform
 

Constructor Detail

PlateCarree

protected PlateCarree(ParameterValueGroup parameters)
               throws ParameterNotFoundException
Constructs a new map projection from the supplied parameters.

Parameters:
parameters - The parameter values in standard units.
Throws:
ParameterNotFoundException - if a mandatory parameter is missing.
Method Detail

getParameterDescriptors

public ParameterDescriptorGroup getParameterDescriptors()
Returns the parameter descriptors for this map projection. This is used for a providing a default implementation of MapProjection.getParameterValues(), as well as arguments checking.

Overrides:
getParameterDescriptors in class EquidistantCylindrical
Returns:
The parameter descriptors for this math transform, or null.
See Also:
OperationMethod.getParameters()

transformNormalized

protected Point2D transformNormalized(double x,
                                      double y,
                                      Point2D ptDst)
                               throws ProjectionException
Transforms the specified (λ,φ) coordinates (units in radians) and stores the result in ptDst (linear distance on a unit sphere).

Overrides:
transformNormalized in class EquidistantCylindrical
Parameters:
x - The longitude of the coordinate, in radians.
y - The latitude of the coordinate, in radians.
ptDst - the specified coordinate point that stores the result of transforming ptSrc, or null. Ordinates will be in a dimensionless unit, as a linear distance on a unit sphere or ellipse.
Returns:
the coordinate point after transforming (lambda, phi) and storing the result in ptDst.
Throws:
ProjectionException - if the point can't be transformed.

inverseTransformNormalized

protected Point2D inverseTransformNormalized(double x,
                                             double y,
                                             Point2D ptDst)
                                      throws ProjectionException
Transforms the specified (x,y) coordinates and stores the result in ptDst.

Overrides:
inverseTransformNormalized in class EquidistantCylindrical
Parameters:
x - The easting of the coordinate, linear distance on a unit sphere or ellipse.
y - The northing of the coordinate, linear distance on a unit sphere or ellipse.
ptDst - the specified coordinate point that stores the result of transforming ptSrc, or null. Ordinates will be in radians.
Returns:
the coordinate point after transforming x, y and storing the result in ptDst.
Throws:
ProjectionException - if the point can't be transformed.


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