casacore
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#include <ExtendSpecifier.h>
Public Member Functions | |
ExtendSpecifier () | |
Default constructor generates empty IPositions. More... | |
ExtendSpecifier (const IPosition &oldShape, const IPosition &newShape, const IPosition &newAxes, const IPosition &stretchAxes) | |
Tell if no or all degenerate axes have to be removed. More... | |
const IPosition & | newShape () const |
Return the new shape. More... | |
const IPosition & | newAxes () const |
Return the new axes. More... | |
const IPosition & | stretchAxes () const |
Return the axes to be stretched. More... | |
const IPosition & | oldShape () const |
Return the old shape. More... | |
const IPosition & | extendAxes () const |
Return the axes to be extended (i.e. More... | |
const IPosition & | oldOldAxes () const |
Return the old axes (i.e. More... | |
const IPosition & | oldNewAxes () const |
Return the old axes as in new shape. More... | |
Slicer | convert (IPosition &shape, const Slicer §ion) const |
Convert the slicer to the specification for the old shape. More... | |
IPosition | convertNew (const IPosition &oldShape) const |
Convert a shape to the specification for the new shape. More... | |
Private Member Functions | |
void | fill (bool *flags, size_t nrdim, const IPosition &axes) const |
Fill the flags for the given axes. More... | |
Private Attributes | |
IPosition | itsOldShape |
IPosition | itsNewShape |
IPosition | itsNewAxes |
IPosition | itsStretchAxes |
IPosition | itsExtendAxes |
IPosition | itsOldOldAxes |
IPosition | itsOldNewAxes |
Specification of new and stretched lattice axes
Internal
ExtendSpecifier is a class internally used by casacore class ExtendLattice. It holds the information which axes are stretched and which axes are new. Note that a stretched axis has to have length 1 in the original shape.
The class only contains the functionality needed by ExtendLattice. which are (mainly) 2 conversion functions. One function converts a slicer from the extended lattice to the original lattice, so ExtendLattice can read the correct data. The other function converts a shape in the original lattice to the shape in the extended lattice.
Some data is precalculated for more efficient processing of the conversion of slicers and shapes.
This example extends the old shape to the new shape.
The 3rd argument tells that axes 2 is new. The newShape tells that its length will be 5. Note that adding this axis means that axes 2 in the old shape will get axes 3 in the new shape.
The 4th argument tells that axes 4 (in the new shape!!) is stretched (to 8 according to newShape).
Definition at line 88 of file ExtendSpecifier.h.
casacore::ExtendSpecifier::ExtendSpecifier | ( | ) |
Default constructor generates empty IPositions.
casacore::ExtendSpecifier::ExtendSpecifier | ( | const IPosition & | oldShape, |
const IPosition & | newShape, | ||
const IPosition & | newAxes, | ||
const IPosition & | stretchAxes | ||
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Tell if no or all degenerate axes have to be removed.
Convert the slicer to the specification for the old shape.
It fills shape
with the shape to reform the section length such that it contains the new axes.
Convert a shape to the specification for the new shape.
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Return the axes to be extended (i.e.
new and stretch axes).
Definition at line 117 of file ExtendSpecifier.h.
References itsExtendAxes.
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Fill the flags for the given axes.
It throws an exception if the axis is invalid or multiply given.
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Return the old axes as in new shape.
Definition at line 125 of file ExtendSpecifier.h.
References itsOldNewAxes.
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Return the old axes (i.e.
axes new nor stretched) as in old shape.
Definition at line 121 of file ExtendSpecifier.h.
References itsOldOldAxes.
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Return the axes to be stretched.
Definition at line 109 of file ExtendSpecifier.h.
References itsStretchAxes.
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Definition at line 145 of file ExtendSpecifier.h.
Referenced by extendAxes().
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Definition at line 143 of file ExtendSpecifier.h.
Referenced by newAxes().
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Definition at line 142 of file ExtendSpecifier.h.
Referenced by newShape().
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Definition at line 147 of file ExtendSpecifier.h.
Referenced by oldNewAxes().
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Definition at line 146 of file ExtendSpecifier.h.
Referenced by oldOldAxes().
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Definition at line 141 of file ExtendSpecifier.h.
Referenced by oldShape().
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Definition at line 144 of file ExtendSpecifier.h.
Referenced by stretchAxes().