- Form: COPY dest source [BOX=n]
-
- dest
- is the buffer where the new image will be stored.
- source
- is the original copy.
- BOX=n
- tells the program to copy only the part of the
image that is in box 'n'.
COPY copies the image in buffer 'source' to the buffer 'dest'. The header
associated with the source image is also copied. NOTE THAT THE DESTINATION
BUFFER COMES FIRST ON THE COMMAND LINE! The syntax of the copy command is:
- COPY into (dest) from image (source).
Examples:
- COPY 2 1
- copies the image in buffer 1 to
buffer 2, along with buffer 1's header
and label.
- COPY $B $A
- copies the image image in buffer A to
buffer B. A are B are variables.
- COPY 1 2 BOX=7
- copies the segment of image 2 that is
in box 7 into image buffer 1. The
size of the new image will be the size
of the box. See BOX for more details.
The related command, WINDOW, is used to trim (``crop'') an image or
spectrum.
If you copy wavelength-calibrated spectra, you should copy the
entire spectrum. You should not use BOX= with wavelength-calibrated
spectra. If you do, the wavelength scale of the spectrum after the COPY
could end up incorrect.