I am developing a wxpython project where I am drawing a diagram on to a panel that I need to be able to zoom in/out to this diagram(a directed acyclic graph in my case). I will achieve this by mouse scroll when the cursor is on the panel, however that is not a part of my question. I need an advice from an experienced person about the method I am using for zooming. So far I thought as doing,
Scale
. However I have some questions about this method. Will this work on vector drawings(like mine) rather than images. And will it be scaling only the panel I chose and not the whole screen ? After I hear your advice about this, I will look deeper into this, but now I am a bit clueless. Sorry if my question is too theoretical . But I felt I needed help in the area. Thanks in advance.
Note: Zooming not necessarily applied by scrolling.
Note2: My research also led me to FloatCanvas
. Is this suitable to my needs ?
Yes, from your description FloatCanvas
would certainly meet your needs.
Another possibility to consider would be the wx.GraphicsContext
and related classes. It is vector-based (instead of raster) and supports the use of a transformation matrix which would make zooming, rotating, etc. very easy. However, the actual drawing and management of the shapes and such would probably require more work for you than using FloatCanvas
.
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