org.das2.datum.SIUnits

Finally introduce SI Units library, which preserves units through multiplication and division.

add

add( Number a, Number b, Units bUnits ) → Datum

Parameters

a - a Number
b - a Number
bUnits - an Units

Returns:

org.das2.datum.Datum

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create

create( String id ) → SIUnits

Parameters

id - a String

Returns:

org.das2.datum.SIUnits

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create( String id, String desc, org.das2.datum.Ratio m, org.das2.datum.Ratio kg, org.das2.datum.Ratio s, org.das2.datum.Ratio A, org.das2.datum.Ratio K, org.das2.datum.RationalNumber multiplier ) → SIUnits
create( String id, String desc, int m, int kg, int s, double multiplier ) → SIUnits
create( String id, String desc, int m, int kg, int s ) → SIUnits
create( String id, String desc, int m, int kg, int s, int A, int K ) → SIUnits
create( String id, String desc, org.das2.datum.Ratio m, org.das2.datum.Ratio k, org.das2.datum.Ratio s, org.das2.datum.RationalNumber multiplier ) → SIUnits

divide

divide( Number a, Number b, Units bUnits ) → Datum

Parameters

a - a Number
b - a Number
bUnits - an Units

Returns:

org.das2.datum.Datum

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fromClusterCDFSIConversion

fromClusterCDFSIConversion( String si, String id, String desc ) → SIUnits

Cluster CDFs had "SI_Conversion" that showed how to convert to SI units. Parse this string. For example: SI_conversion="1.0e-3>V m^-1"

Parameters

si - the string.
id - a String
desc - a String

Returns:

the SIUnits

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main

main( java.lang.String[][] args ) → void

Parameters

args - a java.lang.String[]

Returns:

void (returns nothing)

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multiply

multiply( org.das2.datum.SIUnits s1, org.das2.datum.SIUnits s2 ) → SIUnits

Parameters

s1 - a SIUnits
s2 - a SIUnits

Returns:

org.das2.datum.SIUnits

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multiply( String id, String desc, org.das2.datum.SIUnits s1, org.das2.datum.RationalNumber s ) → SIUnits
multiply( Number a, Number b, Units bUnits ) → Datum

pow

pow( org.das2.datum.SIUnits s1, int pow ) → SIUnits

apply the power to the exponent. For example pow(Units.kg,2)→ kg**2 pow(Units.cm,2)→ cm**2 == .01^2 * m^2. Units.kg

Parameters

s1 - the unit, e.g. SIUnits.si_Hz
pow - the exponent e.g. -1

Returns:

SI unit, e.g. SIUnits.si_s

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subtract

subtract( Number a, Number b, Units bUnits ) → Datum

Parameters

a - a Number
b - a Number
bUnits - an Units

Returns:

org.das2.datum.Datum

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toString

toString( ) → String

Returns:

java.lang.String

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