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Last modified: 24 October 2023

URL: https://cxc.cfa.harvard.edu/ciao/bugs/dmregrid.html
/ ciao4.16 / bugs / dmregrid.html

Bugs: dmregrid

For detailed information and examples of running this tool, refer to the dmregrid ahelp file.

Table of Contents

Bugs

Bugs

Incorrect physical and world coordinates in the output

If the lower limits in the bin parameter are set to anything other than 1 - i.e. xlo:xhi:xbin,ylo:yhi:ybin where xlo and/or ylo do not equal 1 - dmregrid fails to update the physical-to-logical coordinate system, which causes both physical and world coordinates to be incorrect in the output file.

Open-ended binning intervals do not work.  (28 Dec 2009)

The tool will fail if you provide open-ended intervals for the x binning, e.g. "::5,::5". 

# dmregrid (CIAO): ERROR: Could not parse maxx string ':5,'

If the x-binning endpoints are provided but y endpoints are left open-ended, e.g. "1:1000:5,::5", the tool fails silently. The output file has no y-dimension: 

% dmlist ytest.fits blocks

--------------------------------------------------------------------------------
Dataset: ytest.fits
--------------------------------------------------------------------------------

     Block Name Type Dimensions
--------------------------------------------------------------------------------
Block 1: ytest.fits Image Real4(200x0)
/ ciao4.16 / bugs / dmregrid.html