Argument: D #
Description: drawing area number designation
Options: integer number
Default: current drawing area
See the D command for more information about
this argument.
Argument: <filename>
Description: name of datafile and path, if necessary. If the file
contains tabulated data, it must be sorted with row
precedence (see below). May be filtered data from a
FITS image file, as shown in the EXAMPLES.
Argument: <virtual_file_syntax>
Description: A filtering and/or binning command argument. The
<virtual_file_syntax> must be surrounded by
quotes (" ").
See the CURVE command for more
information on this argument.
Argument: <lev1> <lev2> ... <levN>
Description: numbers specifying Z axis values of each contour level
Options: real numbers
Description: the <lev1> value specifies the Z axis data value of
the first contour line, <lev2> specifies the value
of the second contour line, and so on.
See the LEVELS command for information on
setting the levels in the current contour plot.
Contour plots are considered variants of curves, and therefore the
attributes of contours (color, linestyle, scale, width) may be changed
in the same manner. However, the limits of the x and y axes in
a contour plot cannot be modified.
New functionality for plotting contours was added to
ChIPS in CIAO 3.0 via the
"chips.mingridsize" state object field; see the
"Plotting contours" section of
"ahelp chips" for more information.
SORTING THE INPUT DATA
The input data file must be sorted with row precedence. For example,
the following data:
1 1 1
2 1 -4.97206e-24
3 1 2
4 1 1
5 1 2
1 2 -6.79138e-24
2 2 -2.23247e-23
3 2 1
4 2 -2.1879e-22
5 2 1
Would have to be re-ordered for use in ChIPS:
1 1 1
1 2 -6.79138e-24
2 1 -4.97206e-24
2 2 -2.23247e-23
3 1 2
3 2 1
4 1 1
4 2 -2.1879e-22
5 1 2
5 2 1
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