On Wed, Mar 5, 2014 at 9:58 AM, Nouvelle Collection <
[email protected]> wrote:

>
>> no, I put the test in ScaledBitmapDemo, not ScaledBitmap2Demo. Not for
>> any particular reason.
>
>
> I looked into
> http://svn.wxwidgets.org/viewvc/wx/wxPython/3rdParty/FloatCanvas/Demos
> and I tried to get the files also with "svn co
> http://svn.wxwidgets.org/svn/wx/wxPython/3rdParty/FloatCanvas/FloatCanvas";
> but in both cases, I couldn't fnd "ScaledBitmapDemo.py". Are you sure the
> file is on the SVN ?
>

indeed you were right -- it wasn't there. It is now.



> Are you using ScaledBitmap or ScaledBitmap2? ScaledBitmap2 is
>> more efficient if you are zooming in on the detail of a large image -- it
>> is smarter about only using the part of the image that is in view at the
>> time. Ideally, it should completely replace ScaledBitmap, but I don't hink
>> it works quite right if you use arbitrary projection functions  so I've
>> kept both in place for now.
>>
>
> Ok! I've tried both, and both work.
>

If you are mostly going to be seeing the entire image, or most of it, then
ScaledBitmap is probably a little faster. If you need to zoom in on just a
small piece of the image, then ScaledBitmap2 is better.

-Chris



-- 

Christopher Barker, Ph.D.
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