Plotting Bugs: splot

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11 Nov 2008

These are the webpages relative to Sherpa in the CIAO 3.4 release (18 December 2006). They are no longer actively updated, however the CXC will continue limited support of CIAO 3.4 for the near future.

15 Dec 2008

The newest version of the Chandra Interactive Analysis of Observations software, is CIAO 4.1, released on 15 December 2008. Read the release notes for detailed information. This release requires that CALDB 4.1.0 be installed for the software to work correctly.

Bugs

Non-rectangular regions for surface and contour plots do not work.

For example:

sherpa> notice physical "circle(4250,3690,200)"
sherpa> cplot data
Vector size mismatch. X vector contains 200 indices, Y vector contains 200
indices, but Z vector contains 31419 values.

Contour not created.

Additional error messages may be seen as well.

Workaround:

define a box that encompasses the region of interest before creating the plot.