Class ZonedGridSystem
- Object
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- FormattableObject
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- AbstractMathTransform
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- AbstractMathTransform2D
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- ZonedGridSystem
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- All Implemented Interfaces:
Serializable
,Parameterized
,LenientComparable
,MathTransform
,MathTransform2D
public class ZonedGridSystem extends AbstractMathTransform2D implements Serializable
Transverse Mercator Zoned Grid System projection (EPSG codes 9824). This projection is valid for all the world in a given hemisphere, except the poles. The Earth is divided into zones, usually 6° width. The zone number is determined automatically from the longitude and is prefixed to the Easting value.This map projection is not suitable for geometric calculations like distances and angles, since there is discontinuities (gaps) between zones. Actually this operation is not handled as a map projection by Apache SIS, as can been seen from the different class hierarchy.
Note: current implementation can only be backed by the Transverse Mercator projection, but future versions could apply to some other projections if needed.Examples of CRS using this projection are WGS 84 / UTM grid system EPSG:32600 (northern hemisphere) and EPSG:32700 (southern hemisphere).
- Since:
- 0.8
- See Also:
- Serialized Form
Defined in the
sis-referencing
module
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Constructor Summary
Constructors Constructor Description ZonedGridSystem(OperationMethod method, Parameters parameters, MathTransformFactory factory)
Creates a Zoned Grid System from the given parameters.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected int
computeHashCode()
Computes a hash code value for thisZonedGridSystem
.boolean
equals(Object object, ComparisonMode mode)
Compares the given object with this transform for equivalence.ParameterValueGroup
getParameterValues()
Returns the parameter values of this zoned grid system projection.MathTransform2D
inverse()
Returns the inverse of this map projection.Matrix
transform(double[] srcPts, int srcOff, double[] dstPts, int dstOff, boolean derivate)
Converts the specified (λ,φ) coordinate and stores the result indstPts
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Methods inherited from class AbstractMathTransform2D
createTransformedShape, derivative, getSourceDimensions, getTargetDimensions, transform
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Methods inherited from class AbstractMathTransform
derivative, equals, formatTo, getContextualParameters, getParameterDescriptors, hashCode, isIdentity, transform, transform, transform, transform, transform, tryConcatenate
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Methods inherited from class FormattableObject
print, toString, toString, toWKT
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Methods inherited from class Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface MathTransform
derivative, isIdentity, toWKT, transform, transform, transform, transform, transform
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Constructor Detail
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ZonedGridSystem
public ZonedGridSystem(OperationMethod method, Parameters parameters, MathTransformFactory factory) throws FactoryException
Creates a Zoned Grid System from the given parameters. Themethod
argument can be the description of one of the following:- "Transverse Mercator Zoned Grid System".
createMapProjection(MathTransformFactory)
method in this class. Instead, the factory must be specified at thisZonedGridSystem
construction time.- Parameters:
method
- description of the projection parameters.parameters
- the parameter values of the projection to create.factory
- the factory to use for creating the transform.- Throws:
FactoryException
- if an error occurred while creating a transform.
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Method Detail
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getParameterValues
public ParameterValueGroup getParameterValues()
Returns the parameter values of this zoned grid system projection.- Specified by:
getParameterValues
in interfaceParameterized
- Overrides:
getParameterValues
in classAbstractMathTransform
- Returns:
- the internal parameter values for this zoned grid system projection.
- See Also:
AbstractMathTransform.getContextualParameters()
,SingleOperation.getParameterValues()
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transform
public Matrix transform(double[] srcPts, int srcOff, double[] dstPts, int dstOff, boolean derivate) throws TransformException
Converts the specified (λ,φ) coordinate and stores the result indstPts
. In addition, opportunistically computes the projection derivative ifderivate
istrue
. Note that the derivative does not contain zone prefix.- Specified by:
transform
in classAbstractMathTransform
- Parameters:
srcPts
- the array containing the source coordinate (can not benull
).srcOff
- the offset to the point to be transformed in the source array.dstPts
- the array into which the transformed coordinate is returned. May be the same thansrcPts
. May benull
if only the derivative matrix is desired.dstOff
- the offset to the location of the transformed point that is stored in the destination array.derivate
-true
for computing the derivative, orfalse
if not needed.- Returns:
- the matrix of the projection derivative at the given source position,
or
null
if thederivate
argument isfalse
. - Throws:
TransformException
- if the coordinate can not be converted.- See Also:
AbstractMathTransform.derivative(DirectPosition)
,AbstractMathTransform.transform(DirectPosition, DirectPosition)
,MathTransforms.derivativeAndTransform(MathTransform, double[], int, double[], int)
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inverse
public MathTransform2D inverse()
Returns the inverse of this map projection.- Specified by:
inverse
in interfaceMathTransform
- Specified by:
inverse
in interfaceMathTransform2D
- Overrides:
inverse
in classAbstractMathTransform2D
- Returns:
- the inverse of this map projection.
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computeHashCode
protected int computeHashCode()
Computes a hash code value for thisZonedGridSystem
.- Overrides:
computeHashCode
in classAbstractMathTransform
- Returns:
- the hash code value.
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equals
public boolean equals(Object object, ComparisonMode mode)
Compares the given object with this transform for equivalence. If this method returnstrue
, then for any given identical source position, the two compared map projections shall compute the same target position.- Specified by:
equals
in interfaceLenientComparable
- Overrides:
equals
in classAbstractMathTransform
- Parameters:
object
- the object to compare with this map projection for equivalence.mode
- the strictness level of the comparison. Default toComparisonMode.STRICT
.- Returns:
true
if the given object is equivalent to this map projection.- See Also:
Utilities.deepEquals(Object, Object, ComparisonMode)
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