What commands can I send to skycat with Tk send?
If Skycat is compiled with Tk send enabled (you have to edit the Tk Makefile to do this if you compile yourself) there are some simple Tcl procedures defined that can easily be called from another Tk based application: • get_catalog_info {} – return contents of catalog listing in the format {{selected_row} {{row1} {row2} …}} • display_image {ra dec width height {equinox 2000}} – display image from DSS • mark_image {ra dec width height} – draw a rectangle on the image, return id • unmark_image {id} – remove the rectangle given by id • load_image {filename} – load and display an image file • pick_object {{cmd “”}} – display the “PickObject” dialog window to allow the user to select an object/star and return the info for it in the form: {$x $y $ra $dec $equinox $fwhmX $fwhmY $angle $object $background} See also the comments at end of source file: cat/tclcat/library/SkyCat.tcl. The PickObject interface is (or will be) described in the man page RtdImagePick(n).
