org.geotools.referencing.operation.projection
Class PlateCarree

java.lang.Object
  extended by org.geotools.referencing.wkt.Formattable
      extended by org.geotools.referencing.operation.transform.AbstractMathTransform
          extended by org.geotools.referencing.operation.projection.MapProjection
              extended by org.geotools.referencing.operation.projection.EquidistantCylindrical
                  extended by org.geotools.referencing.operation.projection.PlateCarree
All Implemented Interfaces:
java.io.Serializable, org.opengis.referencing.operation.MathTransform, org.opengis.referencing.operation.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
Version:
$Id: PlateCarree.java 30641 2008-06-12 17:42:27Z acuster $
Author:
John Grange, Martin Desruisseaux
See Also:
"Equirectangular" on RemoteSensing.org, Serialized Form

Nested Class Summary
static class PlateCarree.Provider
          The math transform provider for an Plate Carree projection.
 
Nested classes/interfaces inherited from class org.geotools.referencing.operation.projection.EquidistantCylindrical
EquidistantCylindrical.SphericalProvider
 
Nested classes/interfaces inherited from class org.geotools.referencing.operation.projection.MapProjection
MapProjection.AbstractProvider
 
Field Summary
 
Fields inherited from class org.geotools.referencing.operation.projection.EquidistantCylindrical
standardParallel
 
Fields inherited from class org.geotools.referencing.operation.projection.MapProjection
centralMeridian, en0, en1, en2, en3, en4, excentricity, excentricitySquared, falseEasting, falseNorthing, globalScale, isSpherical, latitudeOfOrigin, LOGGER, scaleFactor, semiMajor, semiMinor
 
Fields inherited from class org.geotools.referencing.wkt.Formattable
SINGLE_LINE
 
Constructor Summary
protected PlateCarree(org.opengis.parameter.ParameterValueGroup parameters)
          Constructs a new map projection from the supplied parameters.
 
Method Summary
 org.opengis.parameter.ParameterDescriptorGroup getParameterDescriptors()
          Returns the parameter descriptors for this map projection.
protected  java.awt.geom.Point2D inverseTransformNormalized(double x, double y, java.awt.geom.Point2D ptDst)
          Transforms the specified (x,y) coordinates and stores the result in ptDst.
protected  java.awt.geom.Point2D transformNormalized(double x, double y, java.awt.geom.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 org.geotools.referencing.operation.projection.EquidistantCylindrical
equals, getParameterValues, hashCode
 
Methods inherited from class org.geotools.referencing.operation.projection.MapProjection
getSourceDimensions, getTargetDimensions, getToleranceForAssertions, inv_mlfn, inverse, mlfn, resetWarnings, transform, transform, transform
 
Methods inherited from class org.geotools.referencing.operation.transform.AbstractMathTransform
createTransformedShape, derivative, derivative, ensureNonNull, formatWKT, getName, isIdentity, needCopy, rollLongitude, transform, transform, transform
 
Methods inherited from class org.geotools.referencing.wkt.Formattable
cleanupThreadLocals, toString, toWKT, toWKT, toWKT
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface org.opengis.referencing.operation.MathTransform2D
createTransformedShape, derivative
 
Methods inherited from interface org.opengis.referencing.operation.MathTransform
derivative, isIdentity, toWKT, transform, transform, transform
 

Constructor Detail

PlateCarree

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

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

getParameterDescriptors

public org.opengis.parameter.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 java.awt.geom.Point2D transformNormalized(double x,
                                                    double y,
                                                    java.awt.geom.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 java.awt.geom.Point2D inverseTransformNormalized(double x,
                                                           double y,
                                                           java.awt.geom.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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