org.geotools.referencing.operation.projection
Class NewZealandMapGrid
Object
Formattable
AbstractMathTransform
MapProjection
NewZealandMapGrid
- All Implemented Interfaces:
- Serializable, MathTransform, MathTransform2D
public class NewZealandMapGrid
- extends MapProjection
The NZMG (New Zealand Map Grid) projection.
This is an implementation of algorithm published by
Land Information New Zealand.
The algorithm is documented here.
Implementation note
This class make extensive use of Complex
type which may be costly unless the compiler
can inline on the stack. We assume that Jave 6 and above can do this optimization.
- Since:
- 2.2
- Author:
- Justin Deoliveira, Martin Desruisseaux
- See Also:
- Serialized Form
- Module:
modules/library/referencing (gt-referencing.jar)
Fields inherited from class MapProjection |
centralMeridian, en0, en1, en2, en3, en4, excentricity, excentricitySquared, falseEasting, falseNorthing, globalScale, isSpherical, latitudeOfOrigin, LOGGER, scaleFactor, semiMajor, semiMinor |
Methods inherited from class MapProjection |
equals, getParameterValues, getSourceDimensions, getTargetDimensions, getToleranceForAssertions, hashCode, 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 |
NewZealandMapGrid
protected NewZealandMapGrid()
- Constructs a new map projection with default parameter values.
NewZealandMapGrid
protected NewZealandMapGrid(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.
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.
- Specified by:
getParameterDescriptors
in class MapProjection
- 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).
- Specified by:
transformNormalized
in class MapProjection
- 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
.
- Specified by:
inverseTransformNormalized
in class MapProjection
- 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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