Hi Nathan, thank you very much, very clear explanation. Everything works fine. At the moment I am a little busy to go into adding a new callback, but I will take a look when I am done! Cheers, Roberto On 17 September 2013 13:44, Nathan Goldbaum <nathan12343@gmail.com> wrote:
Hi Roberto,
All plot window plots (e.g. SlicePlot, ProjectionPlot and friends) expose the underlying matplotlib figure and axes like so:
slc = SlicePlot(pf, 0, 'Density') plot = slc.plots['Density']
# mpl figure fig = plot.figure
# mpl axes ax = plot.axes
Using these objects, you can call arbitrary matplotlib functions that hang off these objects. For example:
from matplotlib.patches import Ellipse el = Ellipse((0,0), .1, .2, angle=30, facecolor='none', edgecolor='black') ax.add_artist(Ellipse)
Keep in mind that the coordinates I'm using for the Ellipse object are relative to the plot's coordinates (i.e. they will be in the same units as the x and y axis labels).
If you're feeling adventurous, you could try adding a new plot callback that does this in general for any plot window plot. The source code for the callbacks are in $YT_DEST/src/yt-hg/yt/visualization/plot_modifications.py. You could compare with the CircleCallback.
I've put together a notebook that demonstrates this. You can view it here: http://nbviewer.ipython.org/url/hub.yt-project.org/notebooks/bcd7d3592d49496...
HTH,
Nathan
On Mon, Sep 16, 2013 at 6:51 PM, trobolo dinni < trobolo.trobolo.dinni5@gmail.com> wrote:
Dear yt mailing list,
I would like to ask a question about the annotations on the slice plots since I was unable to find a solution or any clue about it in the mailing list and the documentation.
I selected an ellipsoid region of my simulation through the "pf.h.ellipsoid" container, this region has particular properties and I would like to highlight it in a density slice plot by by annotating the contour of the ellipsoid (resulting in an image similar to those obtained by annotating a sphere, but with the ellipse instead).
Is there a way to achieve this result?
Thanks, Roberto
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org
_______________________________________________ yt-users mailing list yt-users@lists.spacepope.org http://lists.spacepope.org/listinfo.cgi/yt-users-spacepope.org