pynbody.plot.generic.make_contour_plot

pynbody.plot.generic.make_contour_plot#

pynbody.plot.generic.make_contour_plot(arr, xs, ys, x_range=None, y_range=None, nlevels=20, logscale=True, xlabel_display_log=False, ylabel_display_log=False, colorbar=False, cmap=None, vmin=None, vmax=None, plot_type='contourf', **kwargs)[source]#

Plot a contour plot of grid arr corresponding to bin centers specified by xs and ys.

Labels the axes and colobar with units taken from x, if available.

Called by hist2d().

Changed in version 2.0: To simplify the plot interfaces and make them more coherent, the following changes have been made:

  • It is no longer possible to pass in a filename; instead use the matplotlib savefig function.

  • The legend keyword has been removed; instead use matplotlib legend

  • The subplot keyword has been removed; instead ensure that the current matplotlib axes are the ones you want to plot in.

  • The clear keyword has been removed; instead use the matplotlib clf function before calling this function.

  • The scalemin and scalemax keywords have been deprecated in favor of vmin and vmax, for consistency with matplotlib and with other pynbody plotting functions.

  • The ret_im keyword has been deprecated. If you want to use imshow instead of contour, set plot_type to ‘image’.

Parameters:

  • arr (array-like) – 2D array to plot

  • xs (array-like) – x-coordinates of bin centres

  • ys (array-like) – y-coordinates of bin centres

  • x_range (array-like) – Length-2 array specifies the x range. Default is None, in which case the range is set to the min and max of x.

  • y_range (array-like) – Length-2 array specifies the y range. Default is None, in which case the range is set to the min and max of y.

  • xlabel_display_log (boolean, optional) – If True, the x-axis label will indicate that the x values are log-scaled. Other than the axis labelling, this keyword has no effect on the plot.

  • ylabel_display_log (boolean, optional) – If True, the y-axis label will indicate that the y values are log-scaled. Other than the axis labelling, this keyword has no effect on the plot.

  • nlevels (int, optional) – Number of levels to use for contours. Default is 20.

  • logscale (boolean, optional) – If True, use a log-scaled colorbar and log-spaced contours. Default is True.

  • colorbar (boolean, optional) – If True, draw a colorbar. Default is False.

  • vmin (float, optional) – Minimum value to use for the color scale. Default is arr.min().

  • vmax (float, optional) – Maximum value to use for the color scale. Default is arr.max().

  • cmap (str, optional) – Colormap to use. Default is None, which uses the default colormap.

  • scalemin (float, optional) – Deprecated. Use vmin instead.

  • scalemax (float, optional) – Deprecated. Use vmax instead.

  • ret_im (boolean, optional) – Deprecated. If True, plot_type is set to ‘image’.