[wxPython-users] Adding zoom to bmp image

[Christopher Barker]

you might want to take a look at:

wx.lib.floatcanvas

or:

http://morticia.cs.dal.ca/FloatCanvas/

It's mostly for vector drawing, but does support scalable bitmaps, and 
handles zooming, panning, etc. for you.

-Chris

> I will also need to somehow 
> compensate the coordinates to keep the enlarged/reduced image using the 
> lower left corner as the origin.  What is the best way to do this?

If you do it yourself, you just need to do that arithmetic yourself. It 
is a bit of a pain.

> Is there a built-in function that enables scaling of a bmp image without 
> having to create an image of the bmp scaled then rendering to the screen?

you can try DC.SetUserScale -- it might work. Also, GraphicsContext may 
be able to do it for you too.

-Chris


-- 
Christopher Barker, Ph.D.
Oceanographer

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