17.3 Graphics environment variables
There is a wide range of
environment variables
which can be used to control the appearance of plots.
Most of them are assigned a values with the usual
xasset
command.
Note however that all variables which have a couple (or more) of numbers
as values (i.e. axis-related) shall be assigned EXCLUSIVELY using command
xasplot.
We provide here a list of all graphics related variables under user control (there are
others which are "hidden" for internal program use), and we refer to the complete
list of variables
for full details. An asterisk before the variable name identifies variables which MUST
be set using
xasplot.
All such variables have suitable defaults.
- plotter : current plotting server
- overwrite : used internally
- overcount : used internally
- * viewport : part of window/page used for plotting ...
- * xyaxis : ... and relevant world units (for internal use)
- * xaxis : X-axis range in world units
- * yaxis : Y-axis range in world units
- xscale : whether X-axis is linear or log
- yscale : whether Y-axis is linear or log
- zscale : scaling method for images
- nlevel : number of levels for image display
- replotaxes : reserved
- pen : generic pen colour
- bkgpen : colour for background
- axispen : colour for axes
- datapen : colour for data points
- textpen : colour for text labels
- datastyle : whether error bars, solid lines etc. are plotted
- plotcomment : amount of textual comments in window/page
- scroll : the scrolling direction for time profiles
- zoom : reserved
- colorbar : reserved
- zfile : reserved
- fulldisplay : reserved
- plus other used internally
To know the setting of all graphics related variables issue command
xasplot query
There are in additions other variables which are not shown by xasplot query
and can be used for purposes more related to the semantics of the plots.
- timeaxis : label time axis in sec or hours
- tquantity : choice of column in time profile plots
- scrollsize : the fraction of axis to be scrolled
- countunits : plot spectra as cts/s or cts/s/bin (or cts/s/keV)
sax.iasf-milano.inaf.it/Xashelp/graph.3.html
:: original creation 2002 Sep 04 18:03:51 CEST ::
last edit 2002 Sep 04 18:03:51 CEST