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:

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)