making-a-postscript-plot-of-a-gigantic-fits-image.html

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         title="Permalink to Making a postscript plot of a gigantic fits image">Making a postscript plot of a gigantic fits image</a></h2>
 
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    <abbr class="published" title="2012-09-20T20:02:00-06:00">
      2012/09/20
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      By <a class="url fn" href="https://keflavich.github.io/blog/author/adam-keflavichgmailcom.html">Adam (keflavich@gmail.com)</a>
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    <p>``    map = readfits('MOSAIC.fits',hdr)    crpix1 = sxpar(hdr,'CRPIX1')    crpix2 = sxpar(hdr,'CRPIX2')    crval1 = sxpar(hdr,'CRVAL1')    crval2 = sxpar(hdr,'CRVAL2')    cd1_1 = sxpar(hdr,'CD1_1')    cd2_2 = sxpar(hdr,'CD2_2')       x = lindgen(n_e(map[<em>,0]))    y = lindgen(n_e(map[0,</em>]))    l = (x-crpix1)*cd1_1+crval1-360    b = (y-crpix2)*cd2_2+crval2    imdisp,map,/axis,xrange=[max(l),min(l)],yrange=[min(b),max(b)],range=[-1,8]``
This code makes use of <a class="reference external" href="http://cimss.ssec.wisc.edu/~gumley/idl/imdisp.pro">imdisp.pro</a>.</p>

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