Android Open Source - speedofsound Speed Conversions

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Back to project page speedofsound.

License

The source code is released under:

GNU General Public License

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Java Source Code

package net.codechunk.speedofsound.util;
/*from w  w  w .  ja  va2 s.  c o  m*/
public class SpeedConversions {
  /**
   * Convert a speed into meters per second.
   *
   * @param local_units    Units to convert from
   * @param localizedSpeed Speed to convert
   * @return Converted speed in m/s
   */
  public static float nativeSpeed(String local_units, float localizedSpeed) {
    if (local_units.equals("m/s")) {
      return localizedSpeed;
    } else if (local_units.equals("km/h")) {
      return localizedSpeed * 0.27778f;
    } else if (local_units.equals("mph")) {
      return localizedSpeed * 0.44704f;
    } else {
      throw new IllegalArgumentException("Not a valid unit: " + local_units);
    }
  }

  /**
   * Convert a speed into a localized unit from m/s.
   *
   * @param local_units Unit to convert to.
   * @param nativeSpeed Speed in m/s converting from.
   * @return Localized speed.
   */
  public static float localizedSpeed(String local_units, float nativeSpeed) {
    if (local_units.equals("m/s")) {
      return nativeSpeed;
    } else if (local_units.equals("km/h")) {
      return nativeSpeed * 3.6f;
    } else if (local_units.equals("mph")) {
      return nativeSpeed * 2.23693f;
    } else {
      throw new IllegalArgumentException("Not a valid unit: " + local_units);
    }
  }

}

Java Source Code List