diff --git a/dashboard.py b/dashboard.py
index 47379cc..2392f92 100644
--- a/dashboard.py
+++ b/dashboard.py
@@ -17,10 +17,6 @@ from GHA_triaxial.panou_2013_2GHA_num import gha2_num
 app = Dash(__name__, suppress_callback_exceptions=True)
 app.title = "Geodätische Hauptaufgaben"
 
-
-def abplattung(a, b):
-    return (a - b) / a
-
 def ellipsoid_figure(ell: EllipsoidTriaxial, title="Dreiachsiges Ellipsoid"):
     fig = go.Figure()
 
@@ -196,6 +192,7 @@ app.layout = html.Div(
             placeholder="ay...[m]",
             style={"marginBottom": "10px", "display": "block", "width": "300px"},
         ),
+
         dcc.Input(
             id="input-b",
             type="number",
@@ -204,16 +201,6 @@ app.layout = html.Div(
             style={"marginBottom": "20px", "display": "block", "width": "300px"},
         ),
 
-        html.Button(
-            "Ellipsoid berechnen",
-            id="calc-ell",
-            n_clicks=0,
-            style={"marginRight": "10px", "marginBottom": "20px"},
-        ),
-
-        # Ausgabebereich für Ellipsoid-Berechnung
-        html.Div(id="output-area", style={"marginBottom": "20px"}),
-
         # Tabs für beide Hauptaufgaben - Inhalt wird per Funktion generiert s.u.
         dcc.Tabs(
             id="tabs-GHA",
@@ -281,31 +268,6 @@ def fill_inputs_from_dropdown(selected_ell):
     b = ell.b
     return ax, ay, b
 
-# Funktion zur Berechnung der Ellipsoid-Parameter
-@app.callback(
-    Output("output-area", "children"),
-    Input("calc-ell", "n_clicks"),
-    State("input-ax", "value"),
-    State("input-ay", "value"),
-    State("input-b", "value"),
-)
-def update_output(n_clicks, ax, ay, b):
-    if not n_clicks:
-        return ""
-    if n_clicks and ax is None or ay is None or b is None:
-        return html.Span("Bitte Ellipsoid auswählen!", style={"color": "red"})
-    if ay >= ax or b >= ay or ax <= 0 or ay <= 0 or b <= 0:
-        return html.Span("Eingabe inkorrekt.", style={"color": "red"})
-    ell = EllipsoidTriaxial(ax, ay, b)
-    out_ell = []
-    out_ell.append(
-        html.Div([
-            html.P(f"eₓ = {round(ell.ex, 6)}, eᵧ = {round(ell.ey, 6)}, eₑ = {round(ell.ee, 6)}"),
-            #html.Br(),
-            html.P(f"Eₓ = {round(ell.Ex, 3)}, Eᵧ = {round(ell.Ey, 3)}, Eₑ = {round(ell.Ee, 3)}"),
-        ]))
-    return out_ell
-
 # Funktion zur Generierung der Tab-Inhalte
 @app.callback(
     Output("tabs-GHA-out", "children"),
@@ -604,7 +566,7 @@ def compute_gha1_ana(n1, beta11, lamb11, s, a_deg, ax, ay, b, method1):
         html.Br(),
         html.Span(f"kartesisch: x₂={x2:.4f} m, y₂={y2:.4f} m, z₂={z2:.4f} m"),
         html.Br(),
-        html.Span(f"ellipsoidisch: {aus.gms('β₂', beta2, 4)}, {aus.gms('λ₂', lamb2, 4)}"),
+        html.Span(f"elliptisch: {aus.gms('β₂', beta2, 4)}, {aus.gms('λ₂', lamb2, 4)}"),
         html.Br(),
     ])
 
@@ -821,10 +783,10 @@ def render_all(ax, ay, b, store_gha1_ana, store_gha1_num, store_gha2_num, store_
     fig = ellipsoid_figure(ell, title="")
     fig = figure_constant_lines(fig, ell, "ell")
 
-    def add_from_store(store):
+    def add_from_store(fig, store):
         if not store:
-            return
-        pts = store.get("points")
+            return fig
+        pts = store.get("points") or []
         if pts:
             fig = figure_points(fig, pts)
         line = store.get("polyline")
@@ -833,13 +795,9 @@ def render_all(ax, ay, b, store_gha1_ana, store_gha1_num, store_gha2_num, store_
         return fig
 
     for st in (store_gha1_ana, store_gha1_num, store_gha2_num, store_gha2_stoch):
-        res = add_from_store(st)
-        if res is not None:
-            fig = res
+        fig = add_from_store(fig, st)
 
     return fig
 
-
-
 if __name__ == "__main__":
     app.run(debug=False)