Module org.apache.sis.util
Package org.apache.sis.measure

Class ElevationAngle

Object
Angle
ElevationAngle
All Implemented Interfaces:
Serializable, Comparable<Angle>, Formattable
public final class ElevationAngle extends Angle
The angular height of an object measured from the horizontal plane. The elevation angle is part of local topocentric coordinates together with azimuth and distance. For visible objects the elevation is an angle between 0° and 90°.
Note: Elevation angle and altitude angle may be used interchangeably. Both altitude and elevation words are also used to describe the height in meters above sea level.

Immutability and thread safety

This final class is immutable and thus inherently thread-safe.
Since:
0.4
See Also:

  • Field Details

    • ZENITH

      public static final ElevationAngle ZENITH
      An elevation angle of 90° for an imaginary point directly above a location. This is the opposite of NADIR direction.

    • NADIR

      public static final ElevationAngle NADIR
      An elevation angle of -90° for an imaginary point directly below a location. This is the opposite of ZENITH direction.

  • Constructor Details

    • ElevationAngle

      public ElevationAngle(double ε)
      Constructs a new elevation angle with the specified angular value.
      Parameters:
      ε - elevation angle value in decimal degrees.

    • ElevationAngle

      public ElevationAngle(String string) throws NumberFormatException
      Constructs a newly allocated Elevation­Angle object that contain the angular value represented by the string. The string should represent an angle in either fractional degrees (e.g. 45.5°) or degrees with minutes and seconds (e.g. 45°30').
      Parameters:
      string - a string to be converted to an Elevation­Angle.
      Throws:
      Number­Format­Exception - if the string does not contain a parsable angle, or represents an elevation angle.