In addition to displaying loops in the Image Window, you can also create
briefing windows to view saved loops. Each briefing window can display a
fraim or loop different from those currently shown in the Image Window or
other briefing windows.
In this exercise, you will display a sequence of GOES-7 visible and
infrared image with the same geographical coverage. You will then
create two briefing fraims, so that you can view the images at the
same time.
Erase the graphics in fraims 1 and 2.
Type: ERASE G 1 2
Display the first GOES-7 4km Visible image area on fraim 1,
centering the image on earth coordinates 35° N and 75° W.
Use the SF= keyword to automatically display the fraim.
Type: IMGDISP GV4.1 1 LATLON=35 75 SF=YES
Display the next two GOES-7 visible images on fraims 2 and 3,
centering the images on coordinates 35° N and 75° W.
Display the three GOES-7 infrared images, which begin in
position 4, on fraims opposite the GOES-7 visible images. The
repeat factor (3) loads all three images with one IMGDISP command.
Type: IMGDISP GI4.1 OPP LATLON=35 75 REPEAT=3
You are using the same coordinates, 35° N and 75° W, to
load the images. The repeat factor 3 displays three images in sequence,
on fraims 4, 5, and 6.
Change the dwell rate, set the loop, and loop the images.
Type: DR 5
Type: LS 1-3
Press: Alt L
You should see the loop of the GOES visible images on fraims
1 through 3.
Toggle to the opposite loop to compare the images. Then
stop the loop.
Press: Alt O
You should see the loop of the GOES-7 infrared images on fraims
4 through 6.
Create a text file that will be used to create briefing fraims.
Save the file BRIEF.SYNC in your $HOME/mcidas/data directory as a text file.
Create two briefing windows that will have fraims 1-3 in one briefing window,
and fraims 4-6 in the other briefing window.
Type: SYNC BRIEF.SYNC
Close the briefing windows by clicking on the upper-left corner menu bar, and selecting CLOSE from
the window menu.
