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java.lang.Objectuk.ac.starlink.array.ReorderingMapper
public class ReorderingMapper
Implements the OffsetMapper interface to map between arrays with the same shape but different ordering schemes.
Constructor Summary | |
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ReorderingMapper(NDShape shape,
Order order1,
Order order2)
Constructs an OffsetMapper which maps between two arrays with the same shape but different pixel sequences. |
Method Summary | |
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long |
mapOffset(long off1)
Returns an offset into array 2 corresponding to a given offset in array 1. |
long[] |
mapRange(long[] range1)
Returns a two-element array (min,max) indicating the range of mapping output values (array 2 offsets) which correspond to a given range of input values (array 1 offsets). |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ReorderingMapper(NDShape shape, Order order1, Order order2)
shape
- the common shape of the two arraysorder1
- the ordering scheme of array 1order2
- the ordering scheme of array 2Method Detail |
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public long mapOffset(long off1)
OffsetMapper
mapOffset
in interface OffsetMapper
off1
- the offset into the array 1 giving a pixel position
public long[] mapRange(long[] range1)
OffsetMapper
OffsetMapper.mapOffset(long)
will not return any value outside of the range returned,
as long as no value outside of the supplied range parameter
is not supplied to it. The returned range is only used
for efficiency purposes and may be conservative (a larger range
than will actually be returned). A null value may be returned;
this, like a return value of {-Long.MIN_VALUE,Long.MAX_VALUE}
constitutes no guarantee about the mapping output values.
mapRange
in interface OffsetMapper
range1
- a two-element array giving the lowest value and highest
value (inclusive) which will be supplied to the
mapOffset method (range to be considered
in array 1)
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