Package org.djunits.value.vdouble.scalar

Class Speed

java.lang.Object
java.lang.Number
org.djunits.value.base.Scalar<U,S>
org.djunits.value.vdouble.scalar.base.DoubleScalar<U,R>
org.djunits.value.vdouble.scalar.base.DoubleScalarRel<SpeedUnit,Speed>
org.djunits.value.vdouble.scalar.Speed
All Implemented Interfaces:
Serializable, Cloneable, Comparable<Speed>, Relative<SpeedUnit,Speed>, Value<SpeedUnit,Speed>
@Generated(value="org.djunits.generator.GenerateDJUNIT", date="2025-09-06T15:16:28.380798Z") public class Speed extends DoubleScalarRel<SpeedUnit,Speed>
Easy access methods for the Speed DoubleScalar, which is relative by definition.

Copyright (c) 2013-2025 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
BSD-style license. See DJUNITS License.

Author:
Alexander Verbraeck, Peter Knoppers
See Also:

  • Field Details

    • ZERO

      public static final Speed ZERO
      Constant with value zero.

    • ONE

      public static final Speed ONE
      Constant with value one.

    • NaN

      public static final Speed NaN
      Constant with value NaN.

    • POSITIVE_INFINITY

      public static final Speed POSITIVE_INFINITY
      Constant with value POSITIVE_INFINITY.

    • NEGATIVE_INFINITY

      public static final Speed NEGATIVE_INFINITY
      Constant with value NEGATIVE_INFINITY.

    • POS_MAXVALUE

      public static final Speed POS_MAXVALUE
      Constant with value MAX_VALUE.

    • NEG_MAXVALUE

      public static final Speed NEG_MAXVALUE
      Constant with value -MAX_VALUE.

  • Constructor Details

    • Speed

      public Speed(double value, SpeedUnit unit)
      Construct Speed scalar with a unit.
      Parameters:
      value - the double value, expressed in the given unit
      unit - unit for the double value

    • Speed

      public Speed(Speed value)
      Construct Speed scalar.
      Parameters:
      value - Scalar from which to construct this instance

  • Method Details

    • instantiateRel

      public final Speed instantiateRel(double value, SpeedUnit unit)
      Description copied from class: DoubleScalarRel
      Construct a new Relative Immutable DoubleScalar of the right type. Each extending class must implement this method.
      Specified by:
      instantiateRel in class DoubleScalarRel<SpeedUnit,Speed>
      Parameters:
      value - the double value
      unit - the unit
      Returns:
      R a new relative instance of the DoubleScalar of the right type

    • ofSI

      public static final Speed ofSI(double value)
      Construct Speed scalar based on an SI value.
      Parameters:
      value - the double value in SI units
      Returns:
      the new scalar with the SI value

    • interpolate

      public static Speed interpolate(Speed zero, Speed one, double ratio)
      Interpolate between two values. Note that the first value does not have to be smaller than the second.
      Parameters:
      zero - the value at a ratio of zero
      one - the value at a ratio of one
      ratio - the ratio between 0 and 1, inclusive
      Returns:
      a Speed at the given ratio between 0 and 1

    • max

      public static Speed max(Speed r1, Speed r2)
      Return the maximum value of two relative scalars.
      Parameters:
      r1 - the first scalar
      r2 - the second scalar
      Returns:
      the maximum value of two relative scalars

    • max

      public static Speed max(Speed r1, Speed r2, Speed... rn)
      Return the maximum value of more than two relative scalars.
      Parameters:
      r1 - the first scalar
      r2 - the second scalar
      rn - the other scalars
      Returns:
      the maximum value of more than two relative scalars

    • min

      public static Speed min(Speed r1, Speed r2)
      Return the minimum value of two relative scalars.
      Parameters:
      r1 - the first scalar
      r2 - the second scalar
      Returns:
      the minimum value of two relative scalars

    • min

      public static Speed min(Speed r1, Speed r2, Speed... rn)
      Return the minimum value of more than two relative scalars.
      Parameters:
      r1 - the first scalar
      r2 - the second scalar
      rn - the other scalars
      Returns:
      the minimum value of more than two relative scalars

    • valueOf

      public static Speed valueOf(String text)
      Returns a Speed representation of a textual representation of a value with a unit. The String representation that can be parsed is the double value in the unit, followed by a localized or English abbreviation of the unit. Spaces are allowed, but not required, between the value and the unit.
      Parameters:
      text - the textual representation to parse into a Speed
      Returns:
      the Scalar representation of the value in its unit
      Throws:
      IllegalArgumentException - when the text cannot be parsed
      NullPointerException - when the text argument is null

    • of

      public static Speed of(double value, String unitString)
      Returns a Speed based on a value and the textual representation of the unit, which can be localized.
      Parameters:
      value - the value to use
      unitString - the textual representation of the unit
      Returns:
      the Scalar representation of the value in its unit
      Throws:
      IllegalArgumentException - when the unit cannot be parsed or is incorrect
      NullPointerException - when the unitString argument is null

    • divide

      public final Dimensionless divide(Speed v)
      Calculate the division of Speed and Speed, which results in a Dimensionless scalar.
      Parameters:
      v - scalar
      Returns:
      scalar as a division of Speed and Speed

    • times

      public final FlowVolume times(Area v)
      Calculate the multiplication of Speed and Area, which results in a FlowVolume scalar.
      Parameters:
      v - scalar
      Returns:
      scalar as a multiplication of Speed and Area

    • times

      public final Power times(Force v)
      Calculate the multiplication of Speed and Force, which results in a Power scalar.
      Parameters:
      v - scalar
      Returns:
      scalar as a multiplication of Speed and Force

    • times

      public final Acceleration times(Frequency v)
      Calculate the multiplication of Speed and Frequency, which results in a Acceleration scalar.
      Parameters:
      v - scalar
      Returns:
      scalar as a multiplication of Speed and Frequency

    • divide

      public final Frequency divide(Length v)
      Calculate the division of Speed and Length, which results in a Frequency scalar.
      Parameters:
      v - scalar
      Returns:
      scalar as a division of Speed and Length

    • divide

      public final Length divide(Frequency v)
      Calculate the division of Speed and Frequency, which results in a Length scalar.
      Parameters:
      v - scalar
      Returns:
      scalar as a division of Speed and Frequency

    • times

      public final Frequency times(LinearDensity v)
      Calculate the multiplication of Speed and LinearDensity, which results in a Frequency scalar.
      Parameters:
      v - scalar
      Returns:
      scalar as a multiplication of Speed and LinearDensity

    • times

      public final Length times(Duration v)
      Calculate the multiplication of Speed and Duration, which results in a Length scalar.
      Parameters:
      v - scalar
      Returns:
      scalar as a multiplication of Speed and Duration

    • divide

      public final Acceleration divide(Duration v)
      Calculate the division of Speed and Duration, which results in a Acceleration scalar.
      Parameters:
      v - scalar
      Returns:
      scalar as a division of Speed and Duration

    • divide

      public final Duration divide(Acceleration v)
      Calculate the division of Speed and Acceleration, which results in a Duration scalar.
      Parameters:
      v - scalar
      Returns:
      scalar as a division of Speed and Acceleration

    • times

      public final Force times(FlowMass v)
      Calculate the multiplication of Speed and FlowMass, which results in a Force scalar.
      Parameters:
      v - scalar
      Returns:
      scalar as a multiplication of Speed and FlowMass

    • times

      public final Momentum times(Mass v)
      Calculate the multiplication of Speed and Mass, which results in a Momentum scalar.
      Parameters:
      v - scalar
      Returns:
      scalar as a multiplication of Speed and Mass

    • times

      public final Energy times(Momentum v)
      Calculate the multiplication of Speed and Momentum, which results in a Energy scalar.
      Parameters:
      v - scalar
      Returns:
      scalar as a multiplication of Speed and Momentum

    • reciprocal

      public SIScalar reciprocal()
      Description copied from class: DoubleScalarRel
      Create the reciprocal of this scalar with the correct dimensions.
      Overrides:
      reciprocal in class DoubleScalarRel<SpeedUnit,Speed>
      Returns:
      a new scalar instance with correct SI dimensions

    • multiply

      public static Speed multiply(DoubleScalarRel<?,?> scalar1, DoubleScalarRel<?,?> scalar2)
      Multiply two scalars that result in a scalar of type Speed.
      Parameters:
      scalar1 - the first scalar
      scalar2 - the second scalar
      Returns:
      the multiplication of both scalars as an instance of Speed

    • divide

      public static Speed divide(DoubleScalarRel<?,?> scalar1, DoubleScalarRel<?,?> scalar2)
      Divide two scalars that result in a scalar of type Speed.
      Parameters:
      scalar1 - the first scalar
      scalar2 - the second scalar
      Returns:
      the division of scalar1 by scalar2 as an instance of Speed