[Wannier] Plotting projected-bands

[Jianpeng Liu]

Dear Wannier90 developers and users,

I noticed that we can plot projected band-structure with Wannier90 by
properly setting up the 'bands_plot_project' option, which is really nice.
I am trying to do similar things, can anyone tell me how the projected
plotting are coded? In-principle, we can scan over the k-axis and
energy-axis(E-axis), and assign the pre-defined weights whenever the
energy-variable at a particular k-point is equal to the band-energy at the
same point, then make a contour plot of the weights over k and E. However,
the above method needs a fine sampling of the k-axis and energy-axis, and
it is  relatively expansive the number of bands is large. Is there any
better approach, or powerful plotting tool? I would appreciate any
comments, suggestions, or telling me which part of the source codes should
I go to.

best,
Jianpeng Liu
Ph.D. candidate,
Department of Physics and Astronomy,
Rutgers University