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Overview of PLT
XSPEC uses the PLT library, which is in turn based on PGPLOTD.1, to implement its plotting capabilities.
Extensive documentation for the PLT graphics routine is available in the QDP/PLT User's Guide and from PLT's interactive help. This appendix is intended to provide information to assist in using PLT from within the XSPEC program.
Within XSPEC, it is possible to set your graphics device using the cpd command. Any PGPLOT device supported by your local version of PGPLOT is accepted. The cpd command can also be used to display a list of all PGPLOT devices. If you fail to enter a device name, you will be prompted for a PGPLOT device every time you generate a new plot.
From XSPEC, there are two ways to call the PLT routine. Both have the same syntax which is described in the corresponding manual section.
The plot <plot mode> command will produce a graph and control will return immediately to XSPEC.
The iplot <plot mode> command will put XSPEC into interactive plot mode. The prompt
PLT>will appear after XSPEC has finished producing the graph. At this point, you can enter PLT commands to inspect interesting parts of the graph, add labels, or make a hardcopy file for later printing.
Subsections