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display
display displays in ds9 either a single CCD frame or the
mosaiced image of a set of 8 CCD frames of a given IMACS exposure.
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USAGE
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display frame [buffer] [-h hdu_number] [-p plane]
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INPUT
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frame is the frame or set of frames to be
displayed
buffer is
the number of the ds9 display buffer; default = 1.
hdu_number
in the input ccd file; default = 0
plane
specifies which plane of a 3D frame is to be displayed; default = zero
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OUTPUT
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none
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PARAMETERS
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none
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Details:
frame and <span style="font-size:12.0pt;
font-family:"Courier New";font-weight:normal">buffer </span><span style="font-size:12.0pt;font-weight:normal">must be provided in the order shown
above, the other parameters may follow in any order. The ds9 display is set for
Zscale intensity scaling, which is usually satisfactory out of the box, however
scaling can be changed if needed using the ds9 scale menu.</span></h3>
<h3><span style="font-size:12.0pt">display</span><span style="font-size:12.0pt;
font-weight:normal"> looks for image files in the directory COSMOS_IMAGE_DIR.
If a frame with the name </span><span style="font-size:11.0pt;font-family:"Courier New";
font-weight:normal">frame.fits</span><span style="font-size:12.0pt;font-weight:
normal"> is found, it is displayed. If not found, it displays the set of 8
frames with the root name </span><span style="font-size:11.0pt;font-family:
"Courier New";font-weight:normal">frame</span><span style="font-size:12.0pt;
font-weight:normal">. If for some reason, you have both a file </span><span style="font-size:11.0pt;font-family:"Courier New";font-weight:normal">frame.fits</span><span style="font-size:12.0pt;font-weight:normal"> and a set of files </span><span style="font-size:11.0pt;font-family:"Courier New";font-weight:normal">frame_c<i>n</i>.fits</span><span style="font-size:12.0pt;font-weight:normal"> in the same directory, invoke </span><span style="font-size:12.0pt">display8</span><span style="font-size:12.0pt;
font-weight:normal"> to display the set of 8.</span></h3>
<h3><span style="font-size:12.0pt;font-weight:normal">Note that the image
displayed on ds9 is not astrometrically accurate: the 8 frames are displayed
adjacent to each other without the actual chip gaps.</span></h3>
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