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PLOTCUBE

PLOTCUBE

Name


  PLOTCUBE

Author


  Craig B. Markwardt, NASA/GSFC Code 662, Greenbelt, MD 20770
  craigm@lheamail.gsfc.nasa.gov

Purpose


  Plots a three dimensional data that can be printed and made into a cube

Calling Sequence


  PLOTCUBE, x, y, z

Description



  PLOTCUBE plots a three dimensional data set so that it can be
  printed on paper, cut out, and folded together to make a real-life
  three dimensional cube. This may be useful in visualization
  applications. The six faces of the cube contain a projection of
  the data onto that face.
  The output consists of a flat matrix of six plots, which are
  joined together at the proper edges of the cube. Your task,
  should you choose to accept it, is to cut out the cube and
  assemble it.
  Before folding the cube together, it will look like the diagram
  below. You need to match together edges labelled with the same
  letter.
                            A
                          +----+
                        B| |G
                      B | | G
                    +----+----+----+
                    | | | |
                    C| | | |E
                    +----+----+----+
                      D | | F
                        D| |F
                          +----+
                          | |
                        C| |E
                          +----+
                            A
  HINT 1: When printing, be sure that the XSIZE and YSIZE are given
          in the ratio of 3 to 4. A size of 6 in by 8 in is
          suitable.
  HINT 2: As a practical matter for assembling the cube once it has
          been printed, you should leave some extra paper tabs so
          that adhesive can be applied.

Inputs



  X, Y, Z - Three arrays which specify position in three dimensional
            space. All three arrays should be of the same length.

Optional Inputs


  NONE

Input Keyword Parameters



  PANEL, SUBPANEL - An alternate way to more precisely specify the
                    plot and annotation positions. See SUBCELL.
                    Default is full-screen.
  XRANGE, YRANGE, ZRANGE - gives plot range for each dimension, as
                            for other plot commands. Default is
                            range of data.
  XTITLE, YTITLE, ZTITLE - gives title for each axis. The title
                            labels each face of the cube where
                            possible.
  NOERASE - If set, the display is not erased before graphics
            operations.
  Other options are passed along to the PLOT command directly.

Outputs


  NONE

Procedure


Example



  This example takes some synthetic data and makes a cube out of it.
  Visualizing the trace of the curve is more convenient when it can
  be projected on the cube in each dimension.
  t = findgen(200)/20. - 10.
  x = cos(t)
  y = sin(t) + 0.05*t
  z = exp(t) + 0.05*randomn(seed, 200)
  plotcube, x, y, z, xrange=[-1.5,1.5], yrange=[-1.5,1.5], zrange=[-1.5,1.5]

See Also



  DEFSUBCELL, SUBCELLARRAY
  EXTERNAL SUBROUTINES:
  SUBCELL, DEFSUBCELL, PLOTPAN

Modification History


  Written, CM, 1997
  Modified to include SUBCELL, DEFSUBCELL and PLOTPAN when
    distributed, CM, late 1999
  $Id: plotcube.pro,v 1.2 2001/03/25 18:10:44 craigm Exp $



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