Package uk.ac.starlink.ttools.plot2.data
Class LongCoord
- java.lang.Object
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- uk.ac.starlink.ttools.plot2.data.SingleCoord
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- uk.ac.starlink.ttools.plot2.data.LongCoord
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- All Implemented Interfaces:
Coord
public class LongCoord extends SingleCoord
Coord implementation for long values.- Since:
- 30 Nov 2017
- Author:
- Mark Taylor
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
inputToStorage(java.lang.Object[] userValues, uk.ac.starlink.table.DomainMapper[] mappers)
Turns a quantity in the user view to a plotting view object.long
readLongCoord(Tuple tuple, int icol)
Reads a long value from an appropriate field in a given Tuple.-
Methods inherited from class uk.ac.starlink.ttools.plot2.data.SingleCoord
getInput, getInputs, getStorageType, isRequired
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Constructor Detail
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LongCoord
public LongCoord(InputMeta meta, boolean isRequired)
Constructor.- Parameters:
meta
- input value metadataisRequired
- true if this coordinate is required for plotting
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Method Detail
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inputToStorage
public java.lang.Object inputToStorage(java.lang.Object[] userValues, uk.ac.starlink.table.DomainMapper[] mappers)
Description copied from interface:Coord
Turns a quantity in the user view to a plotting view object. The return value is never null.The supplied parameters both correspond (have the same length as) this object's Inputs array. For each Input, the corresponding element of the
inputValues
array gives the value obtained from the user-supplied data (matchingInput.getValueClass()
), and the corresponding element of theinputMappers
array gives a DomainMapper object (consistent withInput.getDomain()
). InputMappers may be null however, and in many cases, coordinates are not sensitive to domains, and for those cases implementations will ignoreinputMappers
.- Parameters:
userValues
- per-input valuesmappers
- per-input domain mappers, each may be null- Returns:
- object of the type corresponding to the result of
Coord.getStorageType()
; not null
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readLongCoord
public long readLongCoord(Tuple tuple, int icol)
Reads a long value from an appropriate field in a given Tuple.- Parameters:
tuple
- tupleicol
- index of field in tuple corresponding to this Coord- Returns:
- value of long field
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