Although ROBOT is mainly designed for two dimensional data
some start has been made on dealing with data sets which
consist of (x, y, z) values. It uses what is
nominally the y error array as the z values. The addition
of three D data has lead to some inconsistencies in Robot
which may be changed at some date.
One contradiction is that the Robot presently uses an array named
``Z" as a temporary storage array. Sometime in the future this may be
renamed and commands such as ``ZARITH" will then work on the real
Z (a.k.a. y error) array.
3D - tell Robot to do a ``three dimensional" plot instead
of the normal X/Y plot. The argument is the three rotation
angles of the coordinate system.
2D - go back to regular two dimensional plotting.
3DCOLOURCODE/3DCOLORCODE - the color used to plot a data point
will depend on the Z value. Arguments: 1) Color of minimum (RGB triplet),
2) color of maximum (RGB triplet).
3DNOCOLOURCODE/3DNOCOLORCODE - switch off color coding based
on Z value.
3DFILL - specifies that the 3D plot will fill as much of the plot
area as possible.
3DNOFILL - only one quarter of the possible plot area will be
used for 3D plots. The corner of the plot is thus anchored at the
corner. This is useful for rotating a data set and is the default.
CONTOUR - The x and y
arrays store the grid coordinates. The grid must be evenly
spaced. The default is to use ten contour levels evenly spaced between
the maximum and the minimum data values. To change the contour levels
use:
CONTOURVALUES - Argument: the values of the contour levels to be used.
To go back to the default contouring give a blank line as the
argument.