TRIPP_GC

                    Displays a full (FITS) image which is referred to
                    by filename and, after two mouse clicks on the
                    desired edges, zooms onto it in order to help
                    *** quickly select an appropriate window of
                    a fullframe image *** for which the coordinates
                    are printed out

                    astronomical: image display and measurement

                    TRIPP_GC,IMAGEFILENAME,IMA=ima

                    imagefilename

                   _EXTRA   : All keywords are bypassed to the TRIPP_TV - procedure
                              used internally .

                    up to two plot windows
                    printed output of selected coordinates

                    ima: array containing the then-readin image

                    none

                    may leave one window open

                    imagefilenames has to refer to an image in FITS format
                    The purpose of this routine si NOT to be as
                    general as possible! On the contrary: it provides
                    a very specific and limited functionality which
                    is designed to help choose a (read-out) window QUICK

                    inspired by the MIDAS(ESO) procedure get/cursor
                    but provides additional (rather fix) functionality
                    - reads in the desired image using READFITS
                    - reads and prints cursor position on (left) click;
                    - displays selected area in a second window
                    - allows to repeat this procedure starting from the
                      original image until termination by (right or
                      middle) mouse click

                    tripp_gc, "/datapath/myimagefile.fits"

                    Version 1.0 2001/07/25 Sonja L. Schuh

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