visad

Class Linear2DSet

java.lang.Object

visad.ThingImpl

visad.DataImpl

visad.Set

visad.SimpleSet

visad.SampledSet

visad.GriddedSet

visad.Gridded2DSet

visad.Linear2DSet

All Implemented Interfaces:

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

Direct Known Subclasses:

Integer2DSet, LinearLatLonSet

public class Linear2DSet
extends Gridded2DSet
implements LinearSet

Linear2DSet represents a finite set of samples of R^2 in a cross product of two arithmetic progressions.

The order of the samples is the rasterization of the orders of the 1D components, with the first component increasing fastest. For example, here is the order of 30 product samples when the first component is has 6 samples and the second component has 5 samples (note index is 0-based):

             second (Y) component

   first      0   6  12  18  24
              1   7  13  19  25
    (X)       2   8  14  20  26
              3   9  15  21  27
  component   4  10  16  22  28
              5  11  17  23  29

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
Linear2DSet(double first1, double last1, int length1, double first2, double last2, int length2) Construct a 2-D cross product of arithmetic progressions with null errors and generic type.
Linear2DSet(Linear1DSet[] sets) Construct a 2-D cross product of sets with a generic MathType.
Linear2DSet(MathType type, double first1, double last1, int length1, double first2, double last2, int length2) Construct a 2-D cross product of arithmetic progressions with null errors and the specified type.
Linear2DSet(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 with the specified type, coord_sys, units and errors.
Linear2DSet(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 with the specified type, coord_sys, units and errors.
Linear2DSet(MathType type, Linear1DSet[] sets) Construct a 2-D cross product of sets with the specified type.
Linear2DSet(MathType type, Linear1DSet[] sets, CoordinateSystem coord_sys, Unit[] units, ErrorEstimate[] errors) Construct a 2-D cross product of sets, with the specified type, coord_sys, units and errors.
Linear2DSet(MathType type, Linear1DSet[] sets, CoordinateSystem coord_sys, Unit[] units, ErrorEstimate[] errors, boolean cache) Construct a 2-D cross product of sets, with the specified type, coord_sys, units and errors.

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.
Linear1DSet	getLinear1DComponent(int i) Get the indexed component (X is at 0, Y is at 1)
float[][]	getSamples(boolean copy) Return the array of values in R^2 space corresponding to this cross product of arithmetic progressions.
Linear1DSet	getX() Return the first arithmetic progression for this cross product (X of XY).
Linear1DSet	getY() Return the second arithmetic progression for this cross product (Y of XY).
float[][]	gridToValue(float[][] grid) transform an array of non-integer grid coordinates to an array of values in R^2
int	hashCode() Returns the hash code for this instance.
float[][]	indexToValue(int[] index) Convert an array of 1-D indices to an array of values in R^2 space.
boolean	isMissing() Check to see if this is an empty cross-product.
java.lang.String	longString(java.lang.String pre) Extended version of the toString() method.
float[][]	valueToGrid(float[][] value) transform an array of values in R^2 to an array of non-integer grid coordinates

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, 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

Linear2DSet

public Linear2DSet(Linear1DSet[] sets)
            throws VisADException

Construct a 2-D cross product of sets with a generic MathType.

Parameters:

sets - Linear1DSets that make up this Linear2DSet.

Throws:

VisADException - illegal sets or other VisAD error.

Linear2DSet

public Linear2DSet(MathType type,
                   Linear1DSet[] sets)
            throws VisADException

Construct a 2-D cross product of sets with the specified type.

Parameters:

type - MathType for this Linear2DSet. Must be consistent with MathType-s of sets.

sets - Linear1DSets that make up this Linear2DSet.

Throws:

VisADException - illegal sets or other VisAD error.

Linear2DSet

public Linear2DSet(double first1,
                   double last1,
                   int length1,
                   double first2,
                   double last2,
                   int length2)
            throws VisADException

Construct a 2-D cross product of arithmetic progressions with null errors and generic type.

Parameters:

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 - problem creating VisAD objects.

Linear2DSet

public Linear2DSet(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 with null errors and the specified type.

Parameters:

type - MathType for this Linear2DSet.

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 - problem creating VisAD objects.

Linear2DSet

public Linear2DSet(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 with the specified type, coord_sys, units and errors.

Parameters:

type - MathType for this Linear2DSet.

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 - problem creating VisAD objects.

Linear2DSet

public Linear2DSet(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 with the specified type, coord_sys, units and errors.

Parameters:

type - MathType for this Linear2DSet.

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 - problem creating VisAD objects.

Linear2DSet

public Linear2DSet(MathType type,
                   Linear1DSet[] sets,
                   CoordinateSystem coord_sys,
                   Unit[] units,
                   ErrorEstimate[] errors)
            throws VisADException

Construct a 2-D cross product of sets, with the specified type, coord_sys, units and errors.

Parameters:

type - MathType for this Linear2DSet. Must be consistent with MathType-s of sets.

sets - Linear1DSets that make up this Linear2DSet.

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.

Linear2DSet

public Linear2DSet(MathType type,
                   Linear1DSet[] sets,
                   CoordinateSystem coord_sys,
                   Unit[] units,
                   ErrorEstimate[] errors,
                   boolean cache)
            throws VisADException

Construct a 2-D cross product of sets, with the specified type, coord_sys, units and errors.

Parameters:

type - MathType for this Linear2DSet. Must be consistent with MathType-s of sets.

sets - Linear1DSets that make up this Linear2DSet.

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

indexToValue

public float[][] indexToValue(int[] index)
                       throws VisADException

Convert an array of 1-D indices to an array of values in R^2 space.

Specified by:

indexToValue in interface SetIface

Overrides:

indexToValue in class Gridded2DSet

Parameters:

index - array of indices of values in R^2 space.

Returns:

values in R^2 space corresponding to indices.

Throws:

VisADException - problem converting indices to values.

gridToValue

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

transform an array of non-integer grid coordinates to an array of values in R^2

Specified by:

gridToValue in interface GriddedSetIface

Overrides:

gridToValue in class Gridded2DSet

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 R^2 to an array of non-integer grid coordinates

Specified by:

valueToGrid in interface GriddedSetIface

Overrides:

valueToGrid in class Gridded2DSet

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.

getX

public Linear1DSet getX()

Return the first arithmetic progression for this cross product (X of XY).

Returns:

first arithmetic progression as a Linear1DSet.

getY

public Linear1DSet getY()

Return the second arithmetic progression for this cross product (Y of XY).

Returns:

second arithmetic progression as a Linear1DSet.

isMissing

public boolean isMissing()

Check to see if this is an empty cross-product.

Specified by:

isMissing in interface Data

Overrides:

isMissing in class SampledSet

Returns:

always false.

getSamples

public float[][] getSamples(boolean copy)
                     throws VisADException

Return the array of values in R^2 space corresponding to this cross product of arithmetic progressions.

Specified by:

getSamples in interface SetIface

Overrides:

getSamples in class SampledSet

Parameters:

copy - if true, return a copy of the samples.

Returns:

array of values in R^2 space.

Throws:

VisADException - problem creating samples.

equals

public boolean equals(java.lang.Object set)

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

Specified by:

equals in interface SetIface

Overrides:

equals in class GriddedSet

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.

hashCode

public int hashCode()

Returns the hash code for this instance.

Overrides:

hashCode in class GriddedSet

Returns:

The hash code for this instance.

getLinear1DComponent

public Linear1DSet getLinear1DComponent(int i)

Get the indexed component (X is at 0, Y is at 1)

Specified by:

getLinear1DComponent in interface LinearSet

Parameters:

i - Index of component

Returns:

The requested component

Throws:

java.lang.ArrayIndexOutOfBoundsException - If an invalid index is specified.

cloneButType

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

Return a clone of this object with a new MathType.

Specified by:

cloneButType in interface SetIface

Overrides:

cloneButType in class Gridded2DSet

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

Extended version of the toString() method.

Specified by:

longString in interface Data

Overrides:

longString in class GriddedSet

Parameters:

pre - prefix for string.

Returns:

wordy string describing this Linear2DSet.

Throws:

VisADException