Class ModifiedAzimuthalEquidistant
Object
FormattableObject
AbstractMathTransform
AbstractMathTransform2D
NormalizedProjection
AzimuthalEquidistant
ModifiedAzimuthalEquidistant
- All Implemented Interfaces:
- Serializable,- Parameterized,- LenientComparable,- MathTransform,- MathTransform2D
Modified Azimuthal Equidistant projection (EPSG:9832).
 This is an approximation of the oblique form of the Azimuthal Equidistant projection.
 For distances under 800 kilometres this modification introduces no significant error.
 
Limitation
This class does not support derivative (Jacobian matrix) yet. See SIS-237 on issues tracker.- Since:
- 1.1
- See Also:
- TODO:
- Add Jacobian matrix formulas.
Defined in the sis-referencing module
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Nested Class SummaryNested classes/interfaces inherited from class NormalizedProjectionNormalizedProjection.ParameterRole
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Field SummaryFields inherited from class NormalizedProjectioneccentricity, eccentricitySquaredFields inherited from class AbstractMathTransform2DDIMENSION
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Constructor SummaryConstructorsConstructorDescriptionModifiedAzimuthalEquidistant(OperationMethod method, Parameters parameters) Creates a Modified Azimuthal Equidistant projection from the given parameters.
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Method SummaryModifier and TypeMethodDescriptionReturns the sequence of normalization →this→ denormalization transforms as a whole.protected voidinverseTransform(double[] srcPts, int srcOff, double[] dstPts, int dstOff) Converts the specified (x,y) coordinates and stores the result indstPts(angles in radians).transform(double[] srcPts, int srcOff, double[] dstPts, int dstOff, boolean derivate) Projects the specified (λ,φ) coordinates (units in radians) and stores the (x,y) result indstPts.Methods inherited from class NormalizedProjectioncomputeHashCode, equals, getContextualParameters, getParameterDescriptors, getParameterValues, inverse, tryConcatenateMethods inherited from class AbstractMathTransform2DcreateTransformedShape, derivative, getSourceDimensions, getTargetDimensions, transformMethods inherited from class AbstractMathTransformderivative, equals, formatTo, getDomain, hashCode, isIdentity, transform, transform, transform, transform, transformMethods inherited from class FormattableObjectprint, toString, toString, toWKTMethods inherited from class Objectclone, finalize, getClass, notify, notifyAll, wait, wait, waitMethods inherited from interface MathTransformderivative, isIdentity, toWKT, transform, transform, transform, transform, transform
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Constructor Details- 
ModifiedAzimuthalEquidistantCreates a Modified Azimuthal Equidistant projection from the given parameters. Themethodargument can be the description of one of the following:- "Modified Azimuthal Equidistant".
 - Parameters:
- method- description of the projection parameters.
- parameters- the parameter values of the projection to create.
 
 
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Method Details- 
createMapProjectionReturns the sequence of normalization →this→ denormalization transforms as a whole. The transform returned by this method expects (longitude, latitude) coordinates in degrees and returns (x,y) coordinates in metres.The non-linear part of the returned transform will be thistransform, except if the ellipsoid is spherical. In the latter case,thistransform may be replaced by a simplified implementation.- Overrides:
- createMapProjectionin class- NormalizedProjection
- Parameters:
- factory- the factory to use for creating the transform.
- Returns:
- the map projection from (λ,φ) to (x,y) coordinates.
- Throws:
- FactoryException- if an error occurred while creating a transform.
- See Also:
 
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transformpublic Matrix transform(double[] srcPts, int srcOff, double[] dstPts, int dstOff, boolean derivate) throws ProjectionException Projects the specified (λ,φ) coordinates (units in radians) and stores the (x,y) result indstPts. The results must be multiplied by the denormalization matrix before to get linear distances.- Overrides:
- transformin class- AzimuthalEquidistant
- Parameters:
- srcPts- source point coordinates, as (longitude, latitude) in radians.
- srcOff- the offset of the single coordinate tuple to be converted in the source array.
- dstPts- the array into which the converted coordinates is returned (may be the same than- srcPts).
- dstOff- the offset of the location of the converted coordinates that is stored in the destination array.
- derivate-- truefor computing the derivative, or- falseif not needed.
- Returns:
- the matrix of the projection derivative at the given source position,
         or nullif thederivateargument isfalse.
- Throws:
- ProjectionException- if the coordinates cannot be converted.
- See Also:
 
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inverseTransformprotected void inverseTransform(double[] srcPts, int srcOff, double[] dstPts, int dstOff) throws ProjectionException Converts the specified (x,y) coordinates and stores the result indstPts(angles in radians).- Overrides:
- inverseTransformin class- AzimuthalEquidistant
- Parameters:
- srcPts- the array containing the source point coordinates, as linear distance on a unit sphere or ellipse.
- srcOff- the offset of the point to be converted in the source array.
- dstPts- the array into which the converted point coordinates is returned (may be the same than- srcPts).
- dstOff- the offset of the location of the converted point that is stored in the destination array.
- Throws:
- ProjectionException- if the point cannot be converted.
 
 
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