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Next: File Menu Up: XVIS Users Guide Version 1.4 Previous: Compiling and Executing

 

Main Window

The XVIS application is designed for viewing and manipulation of VIS images. A sequence of images is stored on a single CDF file which usually represents a single days worth of imaging. The program is used primarily to view this sequence of images as a movie and to inspect and filter individual images of interest.

The main window that appears on startup is shown in Figure 1. A VIS CDF file must be opened prior to taking any other action. Do this by clicking on the Open... button in the file menu. After a file has been opened an active image window is created.

 
Figure 1:   Main Window

The Loop Mode button controls the sequencing of images when they are played back as a movie. The Circular option scrolls forward a single image at a time and then reverses direction when the final record is displayed. The Forward option scrolls forward but jumps to the first image after the final record is displayed. The Reverse option scrolls in reverse image order and jumps to the final record in the sequence after the first image is displayed.

The Image Number panel allows the user to select the active image. This scroll bar is not active during playback mode.

The Playback Control panel contains six buttons with the following functions (listed from left to right).

  1. Go to the first image
  2. Go back one image
  3. Go forward one image
  4. Go to the last image
  5. Pause
  6. Play (sequence through the images)

The Time Stamp area displays the starting time of the current exposure and the center time of the current exposure.

The Cursor Position and Pixel Value area displays the current (or last) coordinates of the cursor within the active image window. The pixel value at that position is also displayed. Note that for the Earth Camera the (zero,zero) postion is at the top-left corner of the displayed image. The Low Resolution Camera images are displayed in the same orientation as the Earth Camera but, since the camera is physically inverted on the spacecraft, the (zero,zero) position is at the lower-right corner of the displayed image.





next up previous
Next: File Menu Up: XVIS Users Guide Version 1.4 Previous: Compiling and Executing



Kenny Hunt - Thu Mar 5 14:33:48 CST 1998
updated by Rae Dvorsky - 28 Sep 2015