Name

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      ARCSAMPLE

Purpose

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      Given X and Y points that describe a closed curve in 2D space,
      this function returns an output curve that is sampled a specified
      number of times at approximately equal arc distances.

Author

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      FANNING SOFTWARE CONSULTING
      David Fanning, Ph.D.
      1645 Sheely Drive
      Fort Collins, CO 80526 USA
      Phone: 970-221-0438
      E-mail: david@idlcoyote.com
      Coyote's Guide to IDL Programming: http://www.idlcoyote.com

Category

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      Utilities

Calling Sequence

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      ArcSample, x_in, y_in, x_out, y_out

Input Parameters

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      x_in: The input X vector of points.
      y_in: The input Y vector of points.

Output Parameters

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      x_out: The output X vector of points.
      y_out: The output Y vector of points.

Keywords

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    POINTS: The number of points in the output vectors. Default: 50.
    PHASE: A scalar between 0.0 and 1.0, for fine control of where interpolates
                    are sampled. Default: 0.0.

Modification History

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      Written by David W. Fanning, 1 December 2003, based on code supplied
          to me by Craig Markwardt.