[daip] IMAGR problem

[Eric Greisen]

Zhixiong Liang wrote:
> Hi,
>     I processed VLBA data with AIPS of 31DEC06 without any problem,but 
> when I used 31DEC08,CLEAN problem occoured. It started to clean itself  
> if I don't do any operation for nearly  ten seconds,even I didn't click 
> the 'continue clean' button.And when I chose the most bright area and 
> click 'continue clean' myself,it would also clean itself just after I 
> finished cleaning.I was confused.would you please tell me what's wrong,I 
> am just a beginner of AIPS.

I'm sorry but I do not know what you mean by "clean itself".  This 
aspect of IMAGR has not changed much (although the menu was rearranged 
between the versions).

I think you are saying that IMAGR resumed cleaning following a TV 
display before you expected it to do so.  It does have a timer which 
causes it to resume after 30 seconds and sometimes that timer does not 
reset when you do something else (e.g. color, zoom, box).  The AIPS TV 
cursor is somewhat separate from the screen cursor.  The AIPS TV 
attaches to the cursor only when the left mouse button is depressed.  So 
if you move the cursor without depressing or at least clicking the left 
mouse button, and then press button A, B, C, or D, the software will 
think that the cursor is at its last AIPS-TV position which is often at 
the CONTINUE CLEAN menu item.  These are 2 ways that you could continue 
sooner.  It is also possible for the keyboard to double-hit so that 
button A for example is actually hit twice.  The AIPS TV when it redoes 
the display is supposed to ignore a pending keystroke but that does not 
always happen.  There would not be a delay at all in that case.

I doubt that I have addressed your concern - perhaps if you could 
explain in more detail I could know what is happening.

Eric Greisen