dATAview Control Window

1. Data source selection (image server, shared memory, disk file);
2. Load, save, print commands;
3. Options (cursor shape, sliders behaviour, open and close windows);
4. Frame Navigator: 1st, Last, Loop (forward & backward movie);
5. Function Selection (single or integrated);
6. Telescope control (center object, move object);
7. Subarray position/size selector;
8. Switches: Bad Pixel, Sky Subtract;
9. Tools: Protractor, Wind Rose (North indicator);

Window Controls:

1. Menu Bar
   • File
     • Image Source allows to switch between different image sources:
       • Disk data. Acceptable formats are FITS and grey/colour PBM/PGM (available from xv SAVE command).
       • Shared memory (SHM). This option is available only for MAGIC/MAX/OMEGA cameras on their local machine. It offers the fastest data access.
       • Image server (IMSRV). Displayed images are obtained from the remote "imsrv" program sending images to the intersted clients. This option is currently ported for MAGIC/MAX/OMEGA cameras, but may be extended in future.
       • IRAF. Left for the future developement.
     • Open disk (FITS or PBM/PGM) files. You can open one or more (using SHIFT key and mouse left button) files simultaneously. You can also use ADD button to add more files to the currently open set.
     • Save is not supported at the moment :-)
     • Print allows you to send Postscript version of your image either to the disk or directly to the printer.
     • Quit program.
   • Options
     • Sliders - Select the slider behaviour functionality. They can control either brightness & contrest or min & max displayed values.
     • Cursor - ~select cursor shape: Dot In Box, Cross Hair, Cross with Hole. On some X-terminals you may need to select Negative to have cursor OK.
     • Windows - Open or close dATAview imaging windows: view, image, zoom, graph.
   • Help starts HTML help window.
2. Frame Navigator contains:
   • Frame Number Window for displaying current frame_number/available_frames and for entering requested frame numbers.
   • information button which opens PopUp window with frame details.
   • 1-st and Last buttons (switch Last ON for "display_when_ready" behaviour).
   • Loop - Sequentialy display as fast as possible all available frames.
   • Fast Rewind, Step Back, Step Ahead, Fast Forward buttons.
   • Load in Progress window showing some action during image aquisition.
3. Function Selector provides switching between:
   • Single images;
   • Integrated images available only from Shared Memory or Image Server.
4. Telescope Offset Facility alows you to:
   • Bring any object to the center of the frame or
   • Move telescope from one position to another.
5. Subarray Selector -currently supports SUBARRAY selection for MAGIC cameras.
6. Switches valid only for Shared Memory or Image Server images.
   • Bad Pixels On/Off
   • Sky Subtraction On/Off
7. Tools
   • Protractor measures sky distances (in arcsec) and angles.
   • Wind Rose shows frame orientation.

Miscelanea

• Resizing the window to the "landscape" shape will change button layout and descriptions.