| Re: IDLgrWindow zoomIn bug? [message #59679] |
Tue, 08 April 2008 01:23  |
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Erik[1]
Messages: 23
Registered: December 2006
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Junior Member |
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On 8 apr, 06:02, David Fanning <n...@dfanning.com> wrote:
> Erik writes:
>> I have a problem using the ZoomIn function from the IDLgrWindow object
>> in IDL 6.3. According to the IDL help file I expected the following to
>> happen:
>
>> ---
>> The IDLgrWindow::ZoomIn procedure method causes the current zoom
>> factor for this window to be increased (that is, multiplied by the
>> factor given by the window's ZOOM_BASE property). The current zoom
>> factor, the virtual canvas dimensions, and the location of the visible
>> portion of the window are updated to reflect the new zoom factor.
>
> I've never used the ZoomIn/ZoomOut features before. But
> I just put it into a program that was zooming in a different
> way. For me, when I zoom in, the draw widget gets twice its
> current size!! Zoom out, it shrinks down again.
>
> I don't know about you, but that is not what I expected
> at all. (IDL 6.4 on Windows). I was sort of hoping the
> view would zoom in and out. Why would you want the draw
> widget changing size!?
>
> Cheers,
>
> David
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming:http://www.dfanning.com/
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")
Hi David,
Wow that isn't what I expected either and I was hoping the same thing
as you! I can't check it in 6.4, but in 6.3 it didn't work that way.
Well, it seems that I have to continue writing my own zoom code and
that it wasn't a waste of time writing it. Only some minor issues I
have to face (like re-drawing the ROI's in the same proportion as the
zoomed image) ;-)
Thanks
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