Class WorldVanDerGrintenI
Object
Formattable
AbstractMathTransform
MapProjection
WorldVanDerGrintenI
- All Implemented Interfaces:
Serializable
,MathTransform
,MathTransform2D
World Van der Grinten I projection. The Van der Grinten I is the most popular Van der Grinten projection and often
referenced as the Van der Grinten projection. It is a circular projection that is neither conformal nor equal-area.
- Author:
- Simon Nyvlt (ars navigandi)
- See Also:
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Nested Class Summary
Nested ClassesNested classes/interfaces inherited from class MapProjection
MapProjection.AbstractProvider
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Field Summary
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
Fields inherited from class Formattable
SINGLE_LINE
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Constructor Summary
ConstructorsConstructorDescriptionConstructs a new map projection from the supplied parameters.WorldVanDerGrintenI
(ParameterValueGroup values, Collection<GeneralParameterDescriptor> expected) -
Method Summary
Modifier and TypeMethodDescriptionReturns the parameter descriptors for this map 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 lambda, double phi, 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, equals, getParameterValues, getSourceDimensions, getTargetDimensions, getToleranceForAssertions, hashCode, inv_mlfn, inverse, mlfn, orthodromicDistance, resetWarnings, transform, transform, transform
Methods inherited from class AbstractMathTransform
createTransformedShape, derivative, derivative, ensureNonNull, formatWKT, getName, isIdentity, needCopy, normalizeAngle, rollLongitude, transform, transform, transform
Methods inherited from class Formattable
cleanupThreadLocals, toString, toWKT, toWKT, toWKT, toWKT
Methods inherited from interface MathTransform
derivative, isIdentity, toWKT, transform, transform, transform
Methods inherited from interface MathTransform2D
createTransformedShape, derivative
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Constructor Details
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WorldVanDerGrintenI
Constructs a new map projection from the supplied parameters.- Parameters:
values
- The parameter values in standard units.- Throws:
ParameterNotFoundException
- if a mandatory parameter is missing.
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WorldVanDerGrintenI
public WorldVanDerGrintenI(ParameterValueGroup values, Collection<GeneralParameterDescriptor> expected) throws ParameterNotFoundException - Throws:
ParameterNotFoundException
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Method Details
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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:
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transformNormalized
protected Point2D transformNormalized(double lambda, double phi, 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:
lambda
- The longitude of the coordinate, in radians.phi
- 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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