docs: def plot_distance_landscape_projection(self, x_axis, y_axis, ax=None, *args, **kwargs):
          """
          Plots the projection of distance landscape (if it was returned), onto the
          parameters specified
  
          :param x_axis: symbol to plot on x axis
          :param y_axis: symbol to plot on y axis
          :param ax: axis object to plot onto
          :param args: arguments to pass to :func:`matplotlib.pyplot.contourf`
          :param kwargs: keyword arguments to pass to :func:`matplotlib.pyplot.contourf`
          :return:
          """
          x, y, z = self.distance_landscape_as_3d_data(x_axis, y_axis)
          plot_contour(x, y, z, x_axis, y_axis, ax=ax, *args, **kwargs)