Bugs: dmextract

Bugs

dmextract requires a "sky" vector to bin on x and y

If the x and y columns are not associated as a "sky" vector, dmextract can't bin on them:

unix% dmextract infile="img.fits[bin (X,Y)=@ann.reg]" ...

# dmextract (CIAO): dsDMEXTRACTREGWCSWERR -- WARNING: Expected 2 dimensions for the sky descriptor. Skipping translation of region to WCS. 
or
# dmextract (CIAO): dsFINDCOLUMNERR -- ERROR: Column 'sky' was not found
in file 'HDU2'.

Workaround:

Edit the file header to create a sky vector.

unix% cat dmhedit.lis
#add
MTYPE1 = POS
MFORM1 = X,Y

unix% punlearn dmhedit
unix% dmhedit img.fits dmhedit.lis