Class EquidistantCylindrical
- Object
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- Formattable
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- AbstractMathTransform
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- MapProjection
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- EquidistantCylindrical
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- All Implemented Interfaces:
Serializable
,MathTransform
,MathTransform2D
- Direct Known Subclasses:
PlateCarree
public class EquidistantCylindrical extends MapProjection
Equidistant cylindrical projection (EPSG code 9823). In the particular case where thestandard_parallel_1
is 0°, this projection is also called Plate Carree or Equirectangular. This is used in, for example, WGS84 / Plate Carree (EPSG:32662).References:
- John P. Snyder (Map Projections - A Working Manual,
U.S. Geological Survey Professional Paper 1395, 1987) - "Coordinate Conversions and Transformations including Formulas",
EPSG Guidence Note Number 7 part 2, Version 24.
- Since:
- 2.2
- Author:
- John Grange, Martin Desruisseaux
- See Also:
- Cylindrical Equidistant projection on MathWorld, "Equirectangular" on RemoteSensing.org, Serialized Form
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Nested Class Summary
Nested Classes Modifier and Type Class Description static class
EquidistantCylindrical.Provider
The math transform provider for an Equidistant Cylindrical projection (EPSG code 9823).static class
EquidistantCylindrical.SphericalProvider
The math transform provider for an Equidistant Cylindrical projection, spherical case-
Nested classes/interfaces inherited from class MapProjection
MapProjection.AbstractProvider
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Field Summary
Fields Modifier and Type Field Description protected double
standardParallel
Standard parallel parameter.-
Fields inherited from class MapProjection
centralMeridian, en0, en1, en2, en3, en4, excentricity, excentricitySquared, falseEasting, falseNorthing, globalScale, invertible, isSpherical, latitudeOfOrigin, LOGGER, scaleFactor, semiMajor, semiMinor, SKIP_SANITY_CHECKS
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Fields inherited from class Formattable
SINGLE_LINE
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Constructor Summary
Constructors Modifier Constructor Description protected
EquidistantCylindrical(ParameterValueGroup parameters)
Constructs a new map projection from the supplied parameters.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(Object object)
Compares the specified object with this map projection for equality.ParameterDescriptorGroup
getParameterDescriptors()
Returns the parameter descriptors for this map projection.ParameterValueGroup
getParameterValues()
Returns the parameter values for this map projection.int
hashCode()
Returns a hash value for this projection.protected Point2D
inverseTransformNormalized(double x, double y, Point2D ptDst)
Transforms the specified (x,y) coordinates and stores the result inptDst
.protected Point2D
transformNormalized(double x, double y, Point2D ptDst)
Transforms the specified (λ,φ) coordinates (units in radians) and stores the result inptDst
(linear distance on a unit sphere).-
Methods inherited from class MapProjection
checkReciprocal, getSourceDimensions, getTargetDimensions, getToleranceForAssertions, inv_mlfn, inverse, mlfn, orthodromicDistance, resetWarnings, transform, transform, transform
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Methods inherited from class AbstractMathTransform
createTransformedShape, derivative, derivative, ensureNonNull, formatWKT, getName, isIdentity, needCopy, normalizeAngle, rollLongitude, transform, transform, transform
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Methods inherited from class Formattable
cleanupThreadLocals, toString, toWKT, toWKT, toWKT, toWKT
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Methods inherited from interface MathTransform
derivative, isIdentity, toWKT, transform, transform, transform
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Methods inherited from interface MathTransform2D
createTransformedShape, derivative
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Field Detail
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standardParallel
protected final double standardParallel
Standard parallel parameter. Set to 0° for thePlateCarree
case.
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Constructor Detail
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EquidistantCylindrical
protected EquidistantCylindrical(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.
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Method Detail
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getParameterDescriptors
public ParameterDescriptorGroup getParameterDescriptors()
Returns the parameter descriptors for this map projection. This is used for a providing a default implementation ofMapProjection.getParameterValues()
, as well as arguments checking.- Specified by:
getParameterDescriptors
in classMapProjection
- Returns:
- The parameter descriptors for this math transform, or
null
. - See Also:
OperationMethod.getParameters()
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getParameterValues
public ParameterValueGroup getParameterValues()
Returns the parameter values for this map projection.- Overrides:
getParameterValues
in classMapProjection
- Returns:
- A copy of the parameter values for this map projection.
- See Also:
Operation.getParameterValues()
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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 inptDst
(linear distance on a unit sphere).- Specified by:
transformNormalized
in classMapProjection
- 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 transformingptSrc
, ornull
. 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 inptDst
. - Throws:
ProjectionException
- if the point can't be transformed.
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inverseTransformNormalized
protected Point2D inverseTransformNormalized(double x, double y, Point2D ptDst) throws ProjectionException
Transforms the specified (x,y) coordinates and stores the result inptDst
.- Specified by:
inverseTransformNormalized
in classMapProjection
- 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 transformingptSrc
, ornull
. Ordinates will be in radians.- Returns:
- the coordinate point after transforming
x
,y
and storing the result inptDst
. - Throws:
ProjectionException
- if the point can't be transformed.
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hashCode
public int hashCode()
Returns a hash value for this projection.- Overrides:
hashCode
in classMapProjection
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equals
public boolean equals(Object object)
Compares the specified object with this map projection for equality.- Overrides:
equals
in classMapProjection
- Parameters:
object
- The object to compare with this transform.- Returns:
true
if the given object is a transform of the same class and if, given identical source position, the transformed position would be the equals.
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