# coyote: STATIONPLOT

- coyote/Graphics
- [Source code]

NAME

      STATIONPLOT

PURPOSE

      This is routine for drawing station plots on a map or other display.
      Normally, this routine is used in conjunction with WINDBARB.

AUTHOR

      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

      Graphics.

CALLING SEQUENCE

      StationPlot, x, y

REQUIRED INPUTS

      x:            The X location of the center of the station plot, expressed in data coordinates.
      y:            The Y location of the center of the station plot, expressed in data coordinates.

KEYWORDS

      COLOR:         The name of the color to draw the station plot in. May be a vector
                     the same length as X. Colors are those available in cgColor.
      RADIUS:        The radius of the station plot circle in normalized coordinates.

RESTRICTIONS

      Requires cgColor from the Coyote Library:
          http://www.idlcoyote.com/programs/cgColor.pro

EXAMPLE

      seed = -3L
      lon = Randomu(seed, 20) * 360 - 180
      lat = Randomu(seed, 20) * 180 - 90
      speed = Randomu(seed, 20) * 100
      direction = Randomu(seed, 20) * 180 + 90
      Erase, cgColor('Ivory', !P.Background)
      Map_Set, /Cylindrical,Position=[0.1, 0.1, 0.9, 0.9], Color=cgColor('Steel Blue'), /NoErase
      Map_Grid, Color=cgColor('Charcoal', !D.Table_Size-2)
      Map_Continents, Color=cgColor('Sea Green', !D.Table_Size-3)
      StationPlot, lon, lat, Color='Indian Red'

MODIFICATION HISTORY

      Written by:  David W. Fanning, 20 May 2003, based on TVCircle from the
      NASA Astonomy Library.
      Added THICK keyword. 23 February 2005. DWF.