[wxPython-users] Animation question

[Luca Politti]

Andrea Gavana ha scritto:
> Hi Luca,
>
> On 4/2/07, Luca Politti wrote:
>>    I'm woking for an animation with wxPython. I need to move an image
>> and zoom it. I've tried with DCs, using double buffer method to reduce
>> the flicking. So I've tested the animation on 2 computers: they have
>> almost the same features, (the bigger difference is on the graphical
>> board: computer1 mounts geForce, computer2 Ati)but on computer1 the
>> animation works slowly, and the process needs the 100% of CPU. Computer2
>> takes this animation more easy and needs only 30-35% of CPU and it
>> results more fluid and nice to see. I'll need to run this animation on a
>> low performance computers...maybe I'm doing something wrong...
>>
>> Any ideas?
Ciao Andrea,
> Two or three of them:
>
> 1) Try FloatCanvas: wx.lib.floatcanvas
Do you think this could be work better?
> 2) Are you using wx.BufferedPaintDC() together with an empty
> wx.EVT_ERASE_BACKGROUND?
Yes, I'm using BufferedDC but not wx.EVT_ERASE_BACKGROUND.
> 3) If you post some code, I am sure some DC guru can help you.
>
I simply use a wx.Bitmap and a wxDC.SetUserScale for the zoom... 30 or 
40 code lines..
> Andrea.
>
> "Imagination Is The Only Weapon In The War Against Reality."
> http://xoomer.virgilio.it/infinity77/
>
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Thanks for your help