Usage with glfw - imgui

Hi!
Are there any examples about the usage with glfw?
I'm trying to understand if I can use fastplotlib with https://github.com/pthom/imgui_bundle (that relies on glfw).

Thanks a lot!

Hi! Thanks for your interest! I am also interested in integrating this with imgui, see this recent dicussion: pyimgui/pyimgui#336

I just pushed a new release which contains a small fix to make the minimal install work: https://github.com/kushalkolar/fastplotlib#minimal-use-with-your-own-qt-or-glfw-applications

You will need to pip install glfw in addition to that.

For examples using glfw, use any of the desktop examples here:
https://github.com/kushalkolar/fastplotlib/tree/master/examples/desktop

Give the kwarg canvas="glfw" when constructing a Plot or GridPlot to force glfw. Don't forget to call fpl.run() at the end.

For example with image_simple.py: https://github.com/kushalkolar/fastplotlib/blob/master/examples/desktop/image/image_simple.py

from fastplotlib import Plot, run
import imageio.v3 as iio

# force glfw
plot = Plot(canvas="glfw")

data = iio.imread("imageio:camera.png")

# plot the image data
image_graphic = plot.add_image(data=data, name="iio camera")

plot.show()

plot.canvas.set_logical_size(800, 800)

plot.auto_scale()

# show and run
plot.show()
run()

You can also use the example notebooks and pass canvas="glfw" to Plot or GridPlot and it will use the glfw canvas without blocking notebook executation.

@kushalkolar

Hi @kushalkolar!
Thanks a lot for your answer!
Your example works fine!
I'll let you know if I manage to make it work with imgui-bundle, which is a batteries-included version of pyimgui.

Thank you!

My guess is that imgui integration would probably be done with wgpu-py and pygfx, since fastplotlib is built on top of pygfx.

See related discussion: pyimgui/pyimgui#336

I don't have experience with imgui, very interested to see what you find out!

@mbignotti

@mbignotti wondering if you were able to try this out?

@kushalkolar

Hey @kushalkolar,
I'm really sorry, but I stopped working on the imgui project a few weeks after I opened this issue and I totally forgot to reply here. My apologies!
Unfortunately I haven't had the chance to try it out. The original idea was trying to mimic what is being done in this fantastic series (at a much simpler level, of course), but with numpy, numba and imgui. Then I thought I could try use fastplotlib to display the image in real time.
Unfortunately, other priorities had arrived in the mean time, and I abandoned the project. Sorry again.

Thanks for the update! Creating viewports/subplots in a drag-drop-resize fashion would be really cool. I might just try and learn ImGUI soon and try to do it myself, but it has been years since I've touched C++ and my C++ abilities are very basic.

I don't think that using C++ is necessary here. The python bindings provide the same functionalities. However, I don't know if fastplotlib can be used to display an image inside an imgui window.

Hi, this is finally being worked on in #571

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Usage with glfw - imgui #260

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