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[IDV #WTE-108111]: Bugs in a 2-parameter display

> Summary:
> 1. The second parameter in a 2-parameter display should inherit its time 
> selection from the first parameter. It doesn't.

I agree.  My concern is that if there is situation 2-parameter need to have 
different time selection....

> 2. The stop sign should actually stop a 158-time data loading process, so we 
> don't have to kill IDV.

The multi threads communication between client and server is difficult to be 
killed by a client. we have not figured out how to do it.

> 3. Minutes or hours of work shouldn't be so certain to be lost anytime 
> something goes wrong and IDV is killed or interrupted.
> 
It is in our to do list, the tricky part is that when something goes wrong, it 
is likely involve memory and the information might not be saved correctly.


Yuan
> 
> ------------------
> Students made a potential temperature Isosurface colored by another parameter,
> using the Best Time Series of GFS, with the time driver set.
> End Time set to Current Time, begin time set to 0h relative to End Time.
> 
> You choose potential temperature, choose "Isosurface colored by another 
> parameter",
> choose "Match time driver", choose "all levels" since it is an isosurface
> (* note: the default of 1000mb is not a smart default for an isosurface).
> 
> Now the chooser pops up for you to choose the other parameter.
> Choose geopotential height for example.
> 
> 
> If you don't select "Match time driver", IDV will launch into reading 183 
> time levels. ARRgh.
> The running joke in class was that it is a game of "Simon Says".
> (If you forget to do a meaningless, unnecessary thing, you get sent back to 
> the beginning.)
> I warned them, and everyone knew the pitfall, but still, many people 
> wasted/lost time anyway.
> Must it be so?
> 
> 
> * Another Bug?
> Reading 183 times cannot be stopped with the Stop Sign icon. That icon often 
> fails me. Can it be made more reliable?
> 
> 
> * Repeated Suggestion: To repeat myself, it would be very nice if the IDV did 
> an auto-save every minute or so.
> I have had students and myself lose a lot of minutes or even hours of work 
> because we did not save a bundle we were working on.
> (explicitly, having to choose our own filename, cluttering the disk, 
> overwriting by Save dialog, again and again
> since there is not even a ctrl-S save keyboard shortcut once a filename is 
> established).
> 
> When the IDV crashes or sticks, or someone steps on the cord or whatever, 
> minutes or hours of work are lost.
> It seems just rude not to offer this convenience in a complex piece of 
> software where people are certain
> to invest a lot of time in an easily saveable but hard to recreate state 
> bundle.
> 
> Why not a recentstate.xidv file in .unidata/idv that is auto-written every 
> minute?
> Settable in Preferences if you think it will hamper performance for mere 
> displayers (as opposed to creators).
> 
> 
> Thanks,
> Brian
> 
> 

Ticket Details
===================
Ticket ID: WTE-108111
Department: Support IDV
Priority: High
Status: Open