I aim to plot a contour plot of flux, but instead of closed contour curves, plt.contour() returns a series of lines with the same height. Psi is defined as a np.array and has a 320 by 200 shape. fig, ax = plt.subplots() r_end = grid_start[0] + grid_step[0] * grid_size[0] z_end = grid_start[1] + grid_step[1] * grid_size[1] X = np.arange(grid_start[0], r_end, grid_step[0]) # shape (200,) Y = np.arange(grid_start[1], z_end, grid_step[1]) # shape (320,) x, y = np.meshgrid(X, Y) CS = ax.contour(x, y, Psi) ax.clabel(CS, fontsize=10) The result looks very weird: all contours image I also created contour plots with some levelling for enhanced visibility. contour plot, level 0 contour plot, level 25 The desired result is smth like this: desired Psi Contours If I reshape the given array to (3200,20) the periodicity is lost, but it is still weird. reshaped result How can I fix this issue? Thanks for your help. Continue reading...
