Class CartesianErrorCoordSet
java.lang.Object
uk.ac.starlink.ttools.plot2.layer.CartesianErrorCoordSet
- All Implemented Interfaces:
MultiPointCoordSet
MultiPointCoordSet for bidirectional errors in Cartesian data coordinates.
- Since:
- 19 Mar 2013
- Author:
- Mark Taylor
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic CartesianErrorCoordSet
createAllAxesErrorCoordSet
(String[] axisNames) Returns a coord set with errors in all of the dimensions of a Cartesian space.static CartesianErrorCoordSet
createSingleAxisErrorCoordSet
(int ndim, int iErrDim, String errAxisName) Returns a coord set with errors in a single indicated dimension of a Cartesian space.Coord[]
Returns the coordinate definitions.int
Returns the number of (non-central) data positions defined by this coord set.boolean
readPoints
(Tuple tuple, int icol, DataGeom geom, double[] dpos0, double[][] dposExtras) Reads the non-central points from a appropriate span of columns in a supplied tuple.
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Constructor Details
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CartesianErrorCoordSet
Constructor. It constructs a coord set for error coordinates in one or more dimensions within in a Cartesian space ofnSpaceDim
dimensions.- Parameters:
axisNames
-nSpaceDim
-element array of names of Cartesian axes (only those represented iniErrDims
are actually used)iErrDims
- array of axis indices for which errors are to be acquired; each element must be an index in the range 0 <= x <nSpaceDim
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Method Details
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getCoords
Description copied from interface:MultiPointCoordSet
Returns the coordinate definitions.- Specified by:
getCoords
in interfaceMultiPointCoordSet
- Returns:
- coords
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getPointCount
public int getPointCount()Description copied from interface:MultiPointCoordSet
Returns the number of (non-central) data positions defined by this coord set.- Specified by:
getPointCount
in interfaceMultiPointCoordSet
- Returns:
- data position count
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readPoints
public boolean readPoints(Tuple tuple, int icol, DataGeom geom, double[] dpos0, double[][] dposExtras) Description copied from interface:MultiPointCoordSet
Reads the non-central points from a appropriate span of columns in a supplied tuple. The central data position must be supplied as input. Theicol
value gives the column corresponding to the first coord of this coordinate set in the sequence; the following few columns are assumed to correspod 1:1 to the coords in this coord set.- Specified by:
readPoints
in interfaceMultiPointCoordSet
- Parameters:
tuple
- tupleicol
- index of tuple field corresponding to the first of the coordinates in this setgeom
- converter between tuple values and data space coordinates; may not be requireddpos0
- nDataDim-element array giving central data positiondposExtras
- [nPointCount][nDataDim]-shaped array into which the non-central data positions will be written- Returns:
- true iff the conversion was successful
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createAllAxesErrorCoordSet
Returns a coord set with errors in all of the dimensions of a Cartesian space.- Parameters:
axisNames
- names of the dimensions; the length of this array defines the dimensionality of the space- Returns:
- new coord set
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createSingleAxisErrorCoordSet
public static CartesianErrorCoordSet createSingleAxisErrorCoordSet(int ndim, int iErrDim, String errAxisName) Returns a coord set with errors in a single indicated dimension of a Cartesian space.- Parameters:
ndim
- dimensionality of the Cartesian spaceiErrDim
- index of the dimension for which error coordinates are to be obtainederrAxisName
- label of the axis indicated byiErrDim
- Returns:
- new coord set
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