Fixed ticks outside of extent in guess_ticks

corny/figures.py

@@ -396,7 +396,7 @@ def guess_ticks_from_lim(a, b, steps=None):
     x_1 = round(float(a)/round_digit)*round_digit
     x_2 = round(float(b)/round_digit)*round_digit
     A = np.arange(x_1, x_2, round_digit)
-    A[(A>=a) & (A<=b)]
+    A = A[(A>=a) & (A<=b)]
     return A
 
 def add_latlon_ticks(ax, steps=0.01, grid=True):