27c2dc10bb9f83026db6378c151d8108fc044af8,examples/images_contours_and_fields/contour_image.py,,,#,20

Before Change

                cmap=cmap, norm=norm)
v = plt.axis()
plt.contour(Z, levels, colors="k", origin="image", extent=extent)
plt.axis(v)
ylim = plt.get(plt.gca(), "ylim")
plt.setp(plt.gca(), ylim=ylim[::-1])
plt.title("Origin from rc, reversed y-axis")
plt.colorbar(im)

After Change

norm = cm.colors.Normalize(vmax=abs(Z).max(), vmin=-abs(Z).max())
cmap = cm.PRGn

fig, _axs = plt.subplots(nrows=2, ncols=2)
fig.subplots_adjust(hspace=0.3)
axs = _axs.flatten()

cset1 = axs[0].contourf(X, Y, Z, levels, norm=norm,

Instances