... Circles are used to depict the source positions. ... A optional ID label can also be displayed alongside the circle, corresponding to the row num- ber of that source in the input source list. ... These circles are in fact DS9-type regions, which can be written out to a le for future use (for example, when running a later DS9 session) by setting withregionfile to true, and specifying the desired le name via the regionfile parameter. ... This is a text le containing region descriptions for each source...

Next: *tvmark* - Mark pixel Up: Image Display Previous: Image with sky grid . This task is a convenient amalgamation of xdisplay and imcontour which overlays contours and, if requested, source positions in sky coordinates onto the SAOimage display. ... xp> xplot xp> tvimcontour IRAF image file: rp90_ab_smo Grid type (sky/pix): sky Contour units (pixel/peak/sigma): peak Contour levels: log 5 100 5 xp> . ...

Instructions for using Menu-driven Axis Control Software . ... Altitude and azimuth axes use position feedback and the setting is in counts per second times 10. ... Use b to set the brakes and use c to clear the brakes for the corresponding axis, either azimuth or altitude. ... Use m to move to the previously specified position and velocity for the corresponding axis; either azimuth or altitude. ... Use g to move to the previously specified position and velocity for both the azimuth and altitude axis. ...

Radio data are displayed in the following format: . After the title with name of cluster under examination and with line about kind of data under one, e.g. Radio data [ optical data ] [ radio source identifications ] [ radio spectra (1.0 or 1.1) ] . ... The first line contains the number of radio sources associated with the cluster (these are just those sources with entries in sections 'Radio galaxy', 'Radio source' and 'Radio spectrum' below). ... Radio sources in cluster: 2 # . ...

Motif and X-Windows . It is possible to execute a Motif application on a computer around the corner or around the world and redirect the input and output for the application to your workstation. There are files located on the Science Cluster to help you position and display windows from a remote VMS system. ... Copy two command files: . ... From one of the workstation windows, have the remote system execute the x command file and create the display on your workstation by using this command: . ...

... To run the <LAYER> version of the example, select: flower.htm . ... However, if the page had several layers with absolute positions, and you wanted to place another layer in a relative position to one of the existing layers, you could use inline JavaScript to calculate the value for LEFT or TOP . ... In this example, there is really no need to use inline JavaScript to position the last flower layer, since you could just let the TOP value default to its natural value, as in the other flower layers. ...

... Next, the screen displays "Press 0 to align or Mode for Menu." Press "0" if you wish to begin Automatic alignment (or Easy Align, depending on your telescope model), or press Mode if you wish to choose a manual alignment method ("Automatic Alignment" displays, and you can press MODE to go through the menu to find other alignments). ... Note: If you press the "?" key while "Ctr Brightest Star" displays, the alignment star that AutoStar has chosen will display. ... Alignment successful" displays. ...

... User Guide ] Task: tvall Purpose: Interact with a previously displayed image Categories: visual display TVALL is a WERONG/MIRIAD task which allows interactive modification of the TV lookup tables, etc. ... A menu for operations to be performed will appear on the TV screen. ... Blink between two channels (The mouse y-coordinate determines the blink rate. ... Hit any button to stop blinking). Fiddle the lookup tables (The transfer function is governed by the mouse position. ...

... This appendix describes how to use the JavaScript console to evaluate expressions and display error messages to the user. ... Displaying Error Messages with the Console JavaScript 1.2 and earlier versions. ... You can specify whether to automatically open the console when a JavaScript error occurs or to display a dialog box for each JavaScript error. ... To open a dialog box each time an error occurs, add the following line to prefs.js : user_pref("javascript.classic.error_alerts", true); . ...

... We present a new Tcl/Tk based GUI interface tool which features plotting of curve and image data and allows for user input via return of regions or specific cursor positions. ... Curves and Images may then be combined to form a displayed Graph. ... With the development of several GUI based tools for High Energy Astrophysics at the HEASARC, we found a need for a interface tool that supports combined curve plotting and image display in a native Tcl/Tk environment. POW is our answer. ...