Characterization question
Laszlo Dobos
dobos at pha.jhu.edu
Sat Nov 12 14:34:31 PST 2011
Hi group,
How do I specify overlapping axes in characterisation?
Let's say I have a spectrum and want to give the spectral axis in both
angstroms and velocities. Do I just add two axes and mark them both SPECTRAL
and assume that they overlap?
What if I have an image with two spatial axes? Do I add two SPATIAL axes
then or just one and assume that the resolution etc. is the same in both RA
and Dec?
What if I have overlapping spatial axes, let's say ra,dec and (for a not too
good example) also Mpc? How do I associate one Mpc axis with Ra and the
other with Dec.
I'm sorry, if I misunderstood something about the whole thing. (Samples on
the CDS server are unfortunately not available).
What I'm actually working on is a generic toolkit to characterize data cubes
with any number of dimensions, and I want to allow using multiple scales
along the axes.
Thanks,
-Laszlo
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