visad

Class LinearLatLonSet

java.lang.Object

visad.ThingImpl

visad.DataImpl

visad.Set

visad.SimpleSet

visad.SampledSet

visad.GriddedSet

visad.Gridded2DSet

visad.Linear2DSet

visad.LinearLatLonSet

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, Data, GriddedSetIface, LinearSet, SampledSetIface, SetIface, SimpleSetIface, Thing

public class LinearLatLonSet
extends Linear2DSet

LinearLatLonSet represents a finite set of samples of (Latitude, Longitude) in a cross product of two arithmetic progressions.

This class exists to override valueToInterp (as defined in GriddedSet) in order to handle Longitude wrapping.

The order of the samples is the rasterization of the orders of the 1D components, with the first component increasing fastest. For more detail, see the example in Linear2DSet.java.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class visad.DataImpl

DataImpl.Syncher

Field Summary

Fields inherited from interface visad.Data

ABS, ACOS, ACOS_DEGREES, ADD, ASIN, ASIN_DEGREES, ATAN, ATAN_DEGREES, ATAN2, ATAN2_DEGREES, CEIL, COS, COS_DEGREES, DEGREES_TO_RADIANS, DEPENDENT, DIVIDE, EXP, FLOOR, INDEPENDENT, INV_ATAN2, INV_ATAN2_DEGREES, INV_DIVIDE, INV_POW, INV_REMAINDER, INV_SUBTRACT, LOG, MAX, MIN, MULTIPLY, NEAREST_NEIGHBOR, NEGATE, NO_ERRORS, NOP, POW, RADIANS_TO_DEGREES, REMAINDER, RINT, ROUND, SIN, SIN_DEGREES, SQRT, SUBTRACT, TAN, TAN_DEGREES, WEIGHTED_AVERAGE

Constructor Summary

Constructors

Constructor and Description
LinearLatLonSet(MathType type, double first1, double last1, int length1, double first2, double last2, int length2) Construct a 2-D cross product of arithmetic progressions whose east and west edges may be joined (for interpolation purposes), with null errors, CoordinateSystem and Units are defaults from type
LinearLatLonSet(MathType type, double first1, double last1, int length1, double first2, double last2, int length2, CoordinateSystem coord_sys, Unit[] units, ErrorEstimate[] errors) Construct a 2-D cross product of arithmetic progressions whose east and west edges may be joined (for interpolation purposes), with specified errors, coord_sys and units.
LinearLatLonSet(MathType type, double first1, double last1, int length1, double first2, double last2, int length2, CoordinateSystem coord_sys, Unit[] units, ErrorEstimate[] errors, boolean cache) Construct a 2-D cross product of arithmetic progressions whose east and west edges may be joined (for interpolation purposes), with specified errors, coord_sys and units.
LinearLatLonSet(MathType type, Linear1DSet[] sets) Construct a 2-D cross product of arithmetic progressions whose east and west edges may be joined (for interpolation purposes), with null errors, CoordinateSystem and Units are defaults from type.
LinearLatLonSet(MathType type, Linear1DSet[] sets, CoordinateSystem coord_sys, Unit[] units, ErrorEstimate[] errors) Construct a 2-D cross product of arithmetic progressions whose east and west edges may be joined (for interpolation purposes), with specified errors, coord_sys and units.
LinearLatLonSet(MathType type, Linear1DSet[] sets, CoordinateSystem coord_sys, Unit[] units, ErrorEstimate[] errors, boolean cache) Construct a 2-D cross product of arithmetic progressions whose east and west edges may be joined (for interpolation purposes), with specified errors, coord_sys and units.

Method Summary

Modifier and Type	Method and Description
java.lang.Object	cloneButType(MathType type) Return a clone of this object with a new MathType.
boolean	equals(java.lang.Object set) Check to see if this Linear2DSet is equal to the Object in question.
float[][]	gridToValue(float[][] grid) transform an array of non-integer grid coordinates to an array of values in (Latitude, Longitude)
java.lang.String	longString(java.lang.String pre) Extended version of the toString() method.
float[][]	valueToGrid(float[][] value) transform an array of values in (Latitude, Longitude) to an array of non-integer grid coordinates
void	valueToInterp(float[][] value, int[][] indices, float[][] weights) for each of an array of values in (Latitude, Longitude), compute an array of 1-D indices and an array of weights, to be used for interpolation; indices[i] and weights[i] are null if i-th value is outside grid (i.e., if no interpolation is possible).

Methods inherited from class visad.Linear2DSet

getLinear1DComponent, getSamples, getX, getY, hashCode, indexToValue, isMissing

Methods inherited from class visad.Gridded2DSet

main, valueToGrid, valueToIndex

Methods inherited from class visad.GriddedSet

create, create, create, create, getLength, getLengths, getNeighbors, getNeighbors, getWedge, makeSpatial, valueToInterp

Methods inherited from class visad.SampledSet

clone, computeRanges, computeRanges, cram_missing, finalize, getHi, getLow, getNeighbors, getSamples, make1DGeometry, make3DGeometry, makePointGeometry, setCacheSizeThreshold, setGeometryArray, setGeometryArray

Methods inherited from class visad.SimpleSet

getManifoldDimension

Methods inherited from class visad.Set

__getitem__, __len__, addEqualsCache, addNotEqualsCache, copyDoubles, copyFloats, doubleToFloat, doubleToIndex, equalUnitAndCS, floatToDouble, getCoordinateSystem, getDimension, getDoubles, getDoubles, getLength, getSetErrors, getSetUnits, indexToDouble, longString, make2DGeometry, makeIsoLines, makeIsoSurface, merge1DSets, testEqualsCache, testNotEqualsCache, unary, unitAndCSHashCode

Methods inherited from class visad.DataImpl

__add__, __add__, __div__, __div__, __mod__, __mod__, __mul__, __mul__, __neg__, __pow__, __pow__, __radd__, __rdiv__, __rmod__, __rmul__, __rpow__, __rsub__, __sub__, __sub__, abs, abs, acos, acos, acosDegrees, acosDegrees, add, add, adjustSamplingError, asin, asin, asinDegrees, asinDegrees, atan, atan, atan2, atan2, atan2Degrees, atan2Degrees, atanDegrees, atanDegrees, binary, binary, ceil, ceil, changeMathType, computeRanges, computeRanges, cos, cos, cosDegrees, cosDegrees, dataClone, divide, divide, exp, exp, floor, floor, getType, local, log, log, max, max, min, min, multiply, multiply, negate, negate, notifyReferences, pow, pow, remainder, remainder, rint, rint, round, round, sin, sin, sinDegrees, sinDegrees, sqrt, sqrt, subtract, subtract, tan, tan, tanDegrees, tanDegrees, toString, unary

Methods inherited from class visad.ThingImpl

addReference, removeReference

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface visad.SampledSetIface

getHi, getLow

Methods inherited from interface visad.SetIface

cram_missing, doubleToIndex, equalUnitAndCS, getCoordinateSystem, getDimension, getDoubles, getDoubles, getLength, getManifoldDimension, getNeighbors, getSamples, getSetErrors, getSetUnits, indexToDouble, make1DGeometry, make2DGeometry, make3DGeometry, makeIsoLines, makeIsoSurface, makePointGeometry, merge1DSets

Methods inherited from interface visad.Data

abs, abs, acos, acos, acosDegrees, acosDegrees, add, add, adjustSamplingError, asin, asin, asinDegrees, asinDegrees, atan, atan, atan2, atan2, atan2Degrees, atan2Degrees, atanDegrees, atanDegrees, binary, binary, ceil, ceil, changeMathType, computeRanges, computeRanges, computeRanges, cos, cos, cosDegrees, cosDegrees, dataClone, divide, divide, exp, exp, floor, floor, getType, local, log, log, longString, max, max, min, min, multiply, multiply, negate, negate, pow, pow, remainder, remainder, rint, rint, round, round, sin, sin, sinDegrees, sinDegrees, sqrt, sqrt, subtract, subtract, tan, tan, tanDegrees, tanDegrees, unary, unary

Methods inherited from interface visad.Thing

addReference, removeReference

Constructor Detail

LinearLatLonSet

public LinearLatLonSet(MathType type,
                       Linear1DSet[] sets)
                throws VisADException

Construct a 2-D cross product of arithmetic progressions whose east and west edges may be joined (for interpolation purposes), with null errors, CoordinateSystem and Units are defaults from type.

Parameters:

type - MathType for this LinearLatLonSet. Must be consistent with MathType-s of sets.

sets - Linear1DSets that make up this LinearLatLonSet.

Throws:

VisADException - illegal sets or other VisAD error.

LinearLatLonSet

public LinearLatLonSet(MathType type,
                       double first1,
                       double last1,
                       int length1,
                       double first2,
                       double last2,
                       int length2)
                throws VisADException

Construct a 2-D cross product of arithmetic progressions whose east and west edges may be joined (for interpolation purposes), with null errors, CoordinateSystem and Units are defaults from type

Parameters:

type - MathType for this LinearLatLonSet.

first1 - first value in first arithmetic progression

last1 - last value in first arithmetic progression

length1 - number of values in first arithmetic progression

first2 - first value in second arithmetic progression

last2 - last value in second arithmetic progression

length2 - number of values in second arithmetic progression

Throws:

VisADException - illegal sets or other VisAD error.

LinearLatLonSet

public LinearLatLonSet(MathType type,
                       Linear1DSet[] sets,
                       CoordinateSystem coord_sys,
                       Unit[] units,
                       ErrorEstimate[] errors)
                throws VisADException

Construct a 2-D cross product of arithmetic progressions whose east and west edges may be joined (for interpolation purposes), with specified errors, coord_sys and units.

Parameters:

type - MathType for this LinearLatLonSet. Must be consistent with MathType-s of sets.

sets - Linear1DSets that make up this LinearLatLonSet.

coord_sys - CoordinateSystem for this set. May be null, but if not, must be consistent with type.

units - Unit-s for the values in sets. May be null, but must be convertible with values in sets.

errors - ErrorEstimate-s for values in sets, may be null

Throws:

VisADException - illegal sets or other VisAD error.

LinearLatLonSet

public LinearLatLonSet(MathType type,
                       Linear1DSet[] sets,
                       CoordinateSystem coord_sys,
                       Unit[] units,
                       ErrorEstimate[] errors,
                       boolean cache)
                throws VisADException

Construct a 2-D cross product of arithmetic progressions whose east and west edges may be joined (for interpolation purposes), with specified errors, coord_sys and units.

Parameters:

type - MathType for this LinearLatLonSet. Must be consistent with MathType-s of sets.

sets - Linear1DSets that make up this LinearLatLonSet.

coord_sys - CoordinateSystem for this set. May be null, but if not, must be consistent with type.

units - Unit-s for the values in sets. May be null, but must be convertible with values in sets.

errors - ErrorEstimate-s for values in sets, may be null

cache - if true, enumerate and cache the samples. This will result in a larger memory footprint, but will reduce the time to return samples from calls to SampledSet.getSamples()

Throws:

VisADException - illegal sets or other VisAD error.

LinearLatLonSet

public LinearLatLonSet(MathType type,
                       double first1,
                       double last1,
                       int length1,
                       double first2,
                       double last2,
                       int length2,
                       CoordinateSystem coord_sys,
                       Unit[] units,
                       ErrorEstimate[] errors)
                throws VisADException

Construct a 2-D cross product of arithmetic progressions whose east and west edges may be joined (for interpolation purposes), with specified errors, coord_sys and units.

Parameters:

type - MathType for this LinearLatLonSet.

first1 - first value in first arithmetic progression

last1 - last value in first arithmetic progression

length1 - number of values in first arithmetic progression

first2 - first value in second arithmetic progression

last2 - last value in second arithmetic progression

length2 - number of values in second arithmetic progression

coord_sys - CoordinateSystem for this set. May be null, but if not, must be consistent with type.

units - Unit-s for the values in sets. May be null, but must be convertible with values in sets.

errors - ErrorEstimate-s for values in sets, may be null

Throws:

VisADException - illegal sets or other VisAD error.

LinearLatLonSet

public LinearLatLonSet(MathType type,
                       double first1,
                       double last1,
                       int length1,
                       double first2,
                       double last2,
                       int length2,
                       CoordinateSystem coord_sys,
                       Unit[] units,
                       ErrorEstimate[] errors,
                       boolean cache)
                throws VisADException

Construct a 2-D cross product of arithmetic progressions whose east and west edges may be joined (for interpolation purposes), with specified errors, coord_sys and units.

Parameters:

type - MathType for this LinearLatLonSet.

first1 - first value in first arithmetic progression

last1 - last value in first arithmetic progression

length1 - number of values in first arithmetic progression

first2 - first value in second arithmetic progression

last2 - last value in second arithmetic progression

length2 - number of values in second arithmetic progression

coord_sys - CoordinateSystem for this set. May be null, but if not, must be consistent with type.

units - Unit-s for the values in sets. May be null, but must be convertible with values in sets.

errors - ErrorEstimate-s for values in sets, may be null

cache - if true, enumerate and cache the samples. This will result in a larger memory footprint, but will reduce the time to return samples from calls to SampledSet.getSamples()

Throws:

VisADException - illegal sets or other VisAD error.

Method Detail

gridToValue

public float[][] gridToValue(float[][] grid)
                      throws VisADException

transform an array of non-integer grid coordinates to an array of values in (Latitude, Longitude)

Specified by:

gridToValue in interface GriddedSetIface

Overrides:

gridToValue in class Linear2DSet

Parameters:

grid - The coordinates of the interpolation grid points for which interpolated sample values are desired. grid[i][j] is the i-th grid coordinate of the j-th interpolation point.

Returns:

The interpolated samples of the set. Element [i][j] is the i-th coordinate of the j-th interpolation point.

Throws:

VisADException - VisAD failure.

valueToGrid

public float[][] valueToGrid(float[][] value)
                      throws VisADException

transform an array of values in (Latitude, Longitude) to an array of non-integer grid coordinates

Specified by:

valueToGrid in interface GriddedSetIface

Overrides:

valueToGrid in class Linear2DSet

Parameters:

value - The array of points for which non-integer grid coordinates are desired. value[i][j] is the i-th coordinate of the j-th point.

Returns:

The array of grid coordinates corresponding to the points. Element [i][j] is the i-th non-integer grid coordinate of the j-th point.

Throws:

VisADException - VisAD failure.

valueToInterp

public void valueToInterp(float[][] value,
                          int[][] indices,
                          float[][] weights)
                   throws VisADException

for each of an array of values in (Latitude, Longitude), compute an array of 1-D indices and an array of weights, to be used for interpolation; indices[i] and weights[i] are null if i-th value is outside grid (i.e., if no interpolation is possible). this code is the result of substituting 2 for ManifoldDimension in GriddedSet.valueToInterp, and adding logic to handle LongitudeWrap

Specified by:

valueToInterp in interface SimpleSetIface

Overrides:

valueToInterp in class GriddedSet

Parameters:

value - An array of points. value[i][j] is the i-th coordinate of the j-th points.

indices - Indices of the neighboring samples in the set. If the j-th points lies within the set, then returned element [i][j] is the index of the i-th neighboring sample in the set; otherwise, returned array [j] is null.

weights - Weights for interpolating the neighboring samples in the set. If the j-th points lies within the set, then returned element [i][j] is the weight of the i-th neighboring sample in the set; otherwise, returned array [j] is null.

Throws:

VisADException - VisAD failure.

equals

public boolean equals(java.lang.Object set)

Description copied from class: Linear2DSet

Check to see if this Linear2DSet is equal to the Object in question.

Specified by:

equals in interface SetIface

Overrides:

equals in class Linear2DSet

Parameters:

set - Object in question

Returns:

true if set is a Linear2DSet and each of the Linear1DSet-s that make up this cross product are equal.

cloneButType

public java.lang.Object cloneButType(MathType type)
                              throws VisADException

Description copied from class: Linear2DSet

Return a clone of this object with a new MathType.

Specified by:

cloneButType in interface SetIface

Overrides:

cloneButType in class Linear2DSet

Parameters:

type - new MathType.

Returns:

new Linear2DSet with type.

Throws:

VisADException - if type is not compatible with MathType of component Linear1DSets.

longString

public java.lang.String longString(java.lang.String pre)
                            throws VisADException

Description copied from class: Linear2DSet

Extended version of the toString() method.

Specified by:

longString in interface Data

Overrides:

longString in class Linear2DSet

Parameters:

pre - prefix for string.

Returns:

wordy string describing this Linear2DSet.

Throws:

VisADException