[daip] Re: HGEOM

Eric Greisen egreisen at nrao.edu
Tue Oct 22 14:26:32 EDT 2002


HGEOM appears to have done about the right thing.  The two images are
separated by too much - 4 minutes of time is about 1 degree which is
1200 pixels while the first image has a radius of only 512 pixels.
The declination may correct this by cos(34.5) but that is only about
.8 so you are still > 500 pixels off before there is any overlap.

Note - I have not even looked at the inputs of HGEOM and forget which
image functions as which - but without overlap there will be no output
pixels.

Eric Greisen



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