javax.measure.converter
public final class LogConverter extends UnitConverter
Unit<Dimensionless> BEL = Unit.ONE.transform(new LogConverter(10).inverse());Instances of this class are immutable.
IDENTITY
Constructor and Description |
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LogConverter(double base)
Creates a logarithmic converter having the specified base.
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Modifier and Type | Method and Description |
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double |
convert(double amount)
Converts a double value.
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double |
getBase()
Returns the logarithmic base of this converter.
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UnitConverter |
inverse()
Returns the inverse of this converter.
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boolean |
isLinear()
Indicates if this converter is linear.
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concatenate, equals, hashCode
public LogConverter(double base)
base
- the logarithmic base (e.g. Math.E
for the Natural Logarithm).public double getBase()
Math.E
for the Natural Logarithm).public UnitConverter inverse()
UnitConverter
x
is a valid value, then
x == inverse().convert(convert(x))
to within the accuracy of computer arithmetic.inverse
in class UnitConverter
public double convert(double amount)
UnitConverter
convert
in class UnitConverter
amount
- the numeric value to convert.public boolean isLinear()
UnitConverter
convert(u + v) == convert(u) + convert(v)
and convert(r * u) == r * convert(u)
. For
linear converters the following property always hold:[code] y1 = c1.convert(x1); y2 = c2.convert(x2); then y1*y2
= c1.concatenate(c2).convert(x1*x2)[/code]isLinear
in class UnitConverter
true
if this converter is linear; false
otherwise.