Package skyview.geometry.projecter

Class Tan

java.lang.Object
skyview.geometry.Transformer
skyview.geometry.Projecter
skyview.geometry.projecter.Tan
All Implemented Interfaces:
Serializable, Component
Direct Known Subclasses:
Xtn
public class Tan extends Projecter
See Also:

  • Constructor Details

    • Tan

      public Tan()

  • Method Details

    • getName

      public String getName()
      Get the name of the compontent

    • getDescription

      public String getDescription()
      Get a description of the component

    • allValid

      public boolean allValid()
      The entire projection plane is valid
      Overrides:
      allValid in class Projecter

    • transform

      public final void transform(double[] sphere, double[] plane)
      Project a point from the sphere to the plane.
      Specified by:
      transform in class Transformer
      Parameters:
      sphere - a double[3] unit vector
      plane - a double[2] preallocated vector.

    • inverse

      public Deprojecter inverse()
      Get the inverse transformation
      Specified by:
      inverse in class Projecter

    • isInverse

      public boolean isInverse(Transformer t)
      Is this an inverse of some other transformation?
      Specified by:
      isInverse in class Transformer

    • tissot

      public double[] tissot(double x, double y)
      Get the Tissot parameters.
      Overrides:
      tissot in class Projecter
      Parameters:
      x - The X-value at which the Tissot indicatrix is to be calculated.
      y - The Y-value at which the Tissot indicatrix is to be calculated.
      Returns:
      A three element double vector [Semimajor, semiminor, position angle] with the axes size and positional angle of the ellipse.