pyrocko.plot.beachball

Functions

amplitudes(mt, azimuths, takeoff_angles)

Get beachball amplitude values for selected azimuths and takeoff angles.

plot_beachball_mpl(mt, axes[, ...])

Plot beachball diagram to a Matplotlib plot

plot_fuzzy_beachball_mpl_pixmap(mts, axes[, ...])

Plot fuzzy beachball from a list of given MomentTensors

project(points[, projection])

Project 3D points to 2D.
project(points, projection='lambert')[source]

Project 3D points to 2D.

Parameters:

projection (str) – Projection to use. Choices: 'lambert', 'stereographic', 'orthographic'.

plot_beachball_mpl(mt, axes, beachball_type='deviatoric', position=(0.0, 0.0), size=None, zorder=0, color_t='red', color_p='white', edgecolor='black', linewidth=2, alpha=1.0, arcres=181, decimation=1, projection='lambert', size_units='points', view='top')[source]

Plot beachball diagram to a Matplotlib plot

Parameters:

  • mt – pyrocko.moment_tensor.MomentTensor object or an array or sequence which can be converted into an MT object

  • beachball_type – 'deviatoric' (default), 'full', or 'dc'

  • position – position of the beachball in data coordinates

  • size – diameter of the beachball either in points or in data coordinates, depending on the size_units setting

  • zorder – (passed through to matplotlib drawing functions)

  • color_t – color for compressional quadrants (default: 'red')

  • color_p – color for extensive quadrants (default: 'white')

  • edgecolor – color for lines (default: 'black')

  • linewidth – linewidth in points (default: 2)

  • alpha – (passed through to matplotlib drawing functions)

  • projection – 'lambert' (default), 'stereographic', or 'orthographic'

  • size_units – 'points' (default) or 'data', where the latter causes the beachball to be projected in the plots data coordinates (axes must have an aspect ratio of 1.0 or the beachball will be shown distorted when using this).

  • view – View the beachball from 'top', 'north', 'south', 'east' or 'west', or project onto plane given by (strike, dip). Useful to show beachballs in cross-sections. Default is 'top'.

amplitudes(mt, azimuths, takeoff_angles)[source]

Get beachball amplitude values for selected azimuths and takeoff angles.

Parameters:

  • azimuths (ndarray) – Azimuths, measured clockwise from north [deg].

  • takeoff_angles (ndarray) – Takeoff angles, measured from downward vertical [deg].

plot_fuzzy_beachball_mpl_pixmap(mts, axes, best_mt=None, beachball_type='deviatoric', position=(0.0, 0.0), size=None, zorder=0, color_t='red', color_p='white', edgecolor='black', best_color='red', linewidth=2, alpha=1.0, projection='lambert', size_units='data', grid_resolution=200, method='imshow', view='top')[source]

Plot fuzzy beachball from a list of given MomentTensors

Parameters:

  • mts – list of pyrocko.moment_tensor.MomentTensor object or an array or sequence which can be converted into an MT object

  • best_mt – pyrocko.moment_tensor.MomentTensor object or an array or sequence which can be converted into an MT object of most likely or minimum misfit solution to extra highlight

  • best_color – mpl color for best MomentTensor edges, polygons are not plotted

See plot_beachball_mpl for other arguments