[yt-users] Overlaying matplotlib plots on yt plots

[DORIS LEE]

Hi all,

I have been trying to plot a circle of a given radius around the boundary
of a collapsing cloud to track its evolution.
Usually in matplotlib, I would just draw a circle using a xy meshgrid, but
if I do this using matplotlib the circle would be on a separate figure and
not overlaid on the yt plot. So I tried using a PlotWindow to separate the
data and the yt plot  but I get this error:

In [92]:yt.visualization.plot_window.PlotWindow(proj,(-1e5,1e5,-1e5,1e5))

AttributeError: 'ProjectionPlot' object has no attribute '_key_fields'


In general, is there to get my RAMSES data loaded into yt as a numpy array
with actual numbers in them then feed it into matplotlib to do this task?
or alternatively, is there a simpler way to do this directly on yt using
annotate_contour or some other yt function?

Thank you.

Regards,
Doris
----
Code for generating the attached plot, the green boundary line is in theory
what I am trying to draw.

ds= yt.load("../../bin/output_00002/info_00002.txt")
proj = yt.ProjectionPlot(ds, "y", "density",window_size=10)
proj.set_cmap("density","rainbow")
proj.annotate_velocity()
proj.show()
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