delta function location using the (x, y) input field

em/excitation.py

@@ -60,8 +60,8 @@ def update_excitation_info_message():
         denom = float(max(nx - 1, 1))
         
         if state.dist_type == "Delta":
-            x_in = float(getattr(state, 'peak_x', 0.5))
-            y_in = float(getattr(state, 'peak_y', 0.5))
+            x_in = float(getattr(state, 'impulse_x', 0.5))
+            y_in = float(getattr(state, 'impulse_y', 0.5))
         elif state.dist_type == "Gaussian":
             x_in = float(getattr(state, 'mu_x', 0.5))
             y_in = float(getattr(state, 'mu_y', 0.5))

em/handlers.py

@@ -295,8 +295,8 @@ def register_handlers():
             if not (0.0 <= x <= 1.0) or not (0.0 <= y <= 1.0):
                 state.excitation_error_message = "Peak must be in [0,1]."
                 return
-            state.peak_x = x
-            state.peak_y = y
+            state.impulse_x = x
+            state.impulse_y = y
             state.excitation_error_message = ""
             update_initial_state_preview()
         except Exception: