package org.djunits.value.vdouble.scalar;
   
   import java.util.regex.Matcher;
   
   import javax.annotation.Generated;
   
   import org.djunits.Throw;
   import org.djunits.unit.DensityUnit;
   import org.djunits.unit.DimensionlessUnit;
  import org.djunits.unit.FlowMassUnit;
  import org.djunits.unit.MassUnit;
  import org.djunits.value.util.ValueUtil;
  import org.djunits.value.vdouble.scalar.base.AbstractDoubleScalarRel;
  
  /**
   * Easy access methods for the Density DoubleScalar, which is relative by definition.
   * <p>
   * Copyright (c) 2013-2019 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
   * BSD-style license. See <a href="https://djunits.org/docs/license.html">DJUNITS License</a>.
   * </p>
   * @author <a href="https://www.tudelft.nl/averbraeck">Alexander Verbraeck</a>
   * @author <a href="https://www.tudelft.nl/staff/p.knoppers/">Peter Knoppers</a>
   */
  @Generated(value = "org.djunits.generator.GenerateDJUNIT", date = "2019-10-18T12:12:25.568Z")
  public class Density extends AbstractDoubleScalarRel<DensityUnit, Density>
  {
      /** */
      private static final long serialVersionUID = 20150905L;
  
      /** Constant with value zero. */
      public static final Densitye/scalar/Density.html#Density">Density ZERO = new Density(0.0, DensityUnit.SI);
  
      /** Constant with value one. */
      public static final Densityle/scalar/Density.html#Density">Density ONE = new Density(1.0, DensityUnit.SI);
  
      /** Constant with value NaN. */
      @SuppressWarnings("checkstyle:constantname")
      public static final Densityle/scalar/Density.html#Density">Density NaN = new Density(Double.NaN, DensityUnit.SI);
  
      /** Constant with value POSITIVE_INFINITY. */
      public static final Densityity.html#Density">Density POSITIVE_INFINITY = new Density(Double.POSITIVE_INFINITY, DensityUnit.SI);
  
      /** Constant with value NEGATIVE_INFINITY. */
      public static final Densityity.html#Density">Density NEGATIVE_INFINITY = new Density(Double.NEGATIVE_INFINITY, DensityUnit.SI);
  
      /** Constant with value MAX_VALUE. */
      public static final Density/Density.html#Density">Density POS_MAXVALUE = new Density(Double.MAX_VALUE, DensityUnit.SI);
  
      /** Constant with value -MAX_VALUE. */
      public static final Density/Density.html#Density">Density NEG_MAXVALUE = new Density(-Double.MAX_VALUE, DensityUnit.SI);
  
      /**
       * Construct Density scalar.
       * @param value double; the double value
       * @param unit DensityUnit; unit for the double value
       */
      public Density(final double value, final DensityUnit unit)
      {
          super(value, unit);
      }
  
      /**
       * Construct Density scalar.
       * @param value Density; Scalar from which to construct this instance
       */
      public Densitydouble/scalar/Density.html#Density">Density(final Density value)
      {
          super(value);
      }
  
      /** {@inheritDoc} */
      @Override
      public final Density instantiateRel(final double value, final DensityUnit unit)
      {
          return new Density(value, unit);
      }
  
      /**
       * Construct Density scalar.
       * @param value double; the double value in SI units
       * @return Density; the new scalar with the SI value
       */
      public static final Density instantiateSI(final double value)
      {
          return new Density(value, DensityUnit.SI);
      }
  
      /**
       * Interpolate between two values.
       * @param zero Density; the low value
       * @param one Density; the high value
       * @param ratio double; the ratio between 0 and 1, inclusive
       * @return Density; a Scalar at the ratio between
       */
      public static Density/scalar/Density.html#Density">Densityr/Density.html#Density">Density interpolate(final Density/scalar/Density.html#Density">Density zero, final Density one, final double ratio)
      {
          return new Density(zero.getInUnit() * (1 - ratio) + one.getInUnit(zero.getDisplayUnit()) * ratio,
                  zero.getDisplayUnit());
      }
 
     /**
      * Return the maximum value of two relative scalars.
      * @param r1 Density; the first scalar
      * @param r2 Density; the second scalar
      * @return Density; the maximum value of two relative scalars
      */
     public static Densityle/scalar/Density.html#Density">Densityle/scalar/Density.html#Density">Density max(final Densityle/scalar/Density.html#Density">Density r1, final Density r2)
     {
         return (r1.gt(r2)) ? r1 : r2;
     }
 
     /**
      * Return the maximum value of more than two relative scalars.
      * @param r1 Density; the first scalar
      * @param r2 Density; the second scalar
      * @param rn Density...; the other scalars
      * @return Density; the maximum value of more than two relative scalars
      */
     public static Densityle/scalar/Density.html#Density">Densityle/scalar/Density.html#Density">Density max(final Densityle/scalar/Density.html#Density">Density r1, final Density r2, final Density... rn)
     {
         Density maxr = (r1.gt(r2)) ? r1 : r2;
         for (Density r : rn)
         {
             if (r.gt(maxr))
             {
                 maxr = r;
             }
         }
         return maxr;
     }
 
     /**
      * Return the minimum value of two relative scalars.
      * @param r1 Density; the first scalar
      * @param r2 Density; the second scalar
      * @return Density; the minimum value of two relative scalars
      */
     public static Densityle/scalar/Density.html#Density">Densityle/scalar/Density.html#Density">Density min(final Densityle/scalar/Density.html#Density">Density r1, final Density r2)
     {
         return (r1.lt(r2)) ? r1 : r2;
     }
 
     /**
      * Return the minimum value of more than two relative scalars.
      * @param r1 Density; the first scalar
      * @param r2 Density; the second scalar
      * @param rn Density...; the other scalars
      * @return Density; the minimum value of more than two relative scalars
      */
     public static Densityle/scalar/Density.html#Density">Densityle/scalar/Density.html#Density">Density min(final Densityle/scalar/Density.html#Density">Density r1, final Density r2, final Density... rn)
     {
         Density minr = (r1.lt(r2)) ? r1 : r2;
         for (Density r : rn)
         {
             if (r.lt(minr))
             {
                 minr = r;
             }
         }
         return minr;
     }
 
     /**
      * Returns a Density 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 the official abbreviation of the unit. Spaces are allowed, but not
      * required, between the value and the unit.
      * @param text String; the textual representation to parse into a Density
      * @return Density; the Scalar representation of the value in its unit
      * @throws IllegalArgumentException when the text cannot be parsed
      * @throws NullPointerException when the text argument is null
      */
     public static Density valueOf(final String text)
     {
         Throw.whenNull(text, "Error parsing Density: text to parse is null");
         Throw.when(text.length() == 0, IllegalArgumentException.class, "Error parsing Density: empty text to parse");
         Matcher matcher = ValueUtil.NUMBER_PATTERN.matcher(text);
         if (matcher.find())
         {
             int index = matcher.end();
             String unitString = text.substring(index).trim();
             String valueString = text.substring(0, index).trim();
             DensityUnit unit = DensityUnit.BASE.getUnitByAbbreviation(unitString);
             if (unit != null)
             {
                 double d = Double.parseDouble(valueString);
                 return new Density(d, unit);
             }
         }
         throw new IllegalArgumentException("Error parsing Density from " + text);
     }
 
     /**
      * Returns a Density based on a value and the textual representation of the unit.
      * @param value double; the value to use
      * @param unitString String; the textual representation of the unit
      * @return Density; the Scalar representation of the value in its unit
      * @throws IllegalArgumentException when the unit cannot be parsed or is incorrect
      * @throws NullPointerException when the unitString argument is null
      */
     public static Density of(final double value, final String unitString)
     {
         Throw.whenNull(unitString, "Error parsing Density: unitString is null");
         Throw.when(unitString.length() == 0, IllegalArgumentException.class, "Error parsing Density: empty unitString");
         DensityUnit unit = DensityUnit.BASE.getUnitByAbbreviation(unitString);
         if (unit != null)
         {
             return new Density(value, unit);
         }
         throw new IllegalArgumentException("Error parsing Density with unit " + unitString);
     }
 
     /**
      * Calculate the division of Density and Density, which results in a Dimensionless scalar.
      * @param v Density scalar
      * @return Dimensionless scalar as a division of Density and Density
      */
     public final Dimensionless divide(final Density v)
     {
         return new Dimensionless(this.si / v.si, DimensionlessUnit.SI);
     }
 
     /**
      * Calculate the multiplication of Density and Volume, which results in a Mass scalar.
      * @param v Density scalar
      * @return Mass scalar as a multiplication of Density and Volume
      */
     public final Mass times(final Volume v)
     {
         return new Mass(this.si * v.si, MassUnit.SI);
     }
 
     /**
      * Calculate the multiplication of Density and FlowVolume, which results in a FlowMass scalar.
      * @param v Density scalar
      * @return FlowMass scalar as a multiplication of Density and FlowVolume
      */
     public final FlowMass times(final FlowVolume v)
     {
         return new FlowMass(this.si * v.si, FlowMassUnit.SI);
     }
 
 }