| Re: FG-arithmetic error and moving objects [message #90458 is a reply to message #90454] |
Tue, 03 March 2015 06:37   |
Matthew Argall
Messages: 286
Registered: October 2011
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Senior Member |
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> yellow copies of the circle to appear at random locations in
> the window, even when I stop moving the mouse!
>
> Oh, now as I stare at the window, I occasionally see a cyan version of
> the line popping into momentary existence, too.
Recently, I have noticed that the Symbol and Polyline objects in 8.2 do not obey the refresh state of the window. I can say
win -> Refresh, /DISABLE
then call the SetData method of a Symbol or a Polyline and the window will update automatically, first at the wrong scaling, then at the proper scaling.
Since a version changes of 0.0.1 any time after 8.0 make previous versions of IDL obsolete, I have not brought it up. I have also not brought up the fact that the IDL help pages are not backwards compatible, which is extremely frustrating -- it is impossible to make an Axis() in versions prior to 8.2.2 without scrolling all the way to the bottom of the page and reading "The old LOCATION behavior (with a 3-element vector) is no longer documented, but will continue to work" in the version history.
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