Python interface for GUI about open3d

[syncle]

Sounds interesting. Do you have any references that somebody (probably me) to take a look at?

[qianyizh]

Yes. In pybind11, it is:
http://pybind11.readthedocs.io/en/stable/advanced/cast/functional.html#callbacks-and-passing-anonymous-functions

In Open3D, it is function DrawGeometriesWithAnimationCallback and DrawGeometriesWithKeyCallback in this file:
https://github.com/IntelVCL/Open3D/blob/master/src/Visualization/Utility/DrawGeometry.cpp

In general, I just want to expose these two functions with proper python binding. The python binding will also need to include Visualizer, which is some additional work. That's the reason I haven't looked into it yet.

[qianyizh]

We may also need to restructure Visualizer and related classes.
This is a non trivial task since Visualization is a really big module.
I implemented it early - so its structure is not so great. We may need to change a bunch.

Just saying.

[qianyizh]

I am doing this.
It will be very helpful for Arno.

[qianyizh]

Addressed in #81
At least partially.

Close for now.