Rename visualization/pitcher.txt to visualization/pitcher.py

visualization/pitcher.py

@@ -0,0 +1,24 @@
+from __future__ import annotations
+
+import pandas as pd
+import plotly.express as px
+import plotly.graph_objects as go
+
+
+def create_pitch_movement_chart(df: pd.DataFrame) -> go.Figure:
+    if df.empty or "pfx_x" not in df.columns or "pfx_z" not in df.columns:
+        return go.Figure()
+
+    color_col = "pitch_type" if "pitch_type" in df.columns else None
+
+    fig = px.scatter(
+        df,
+        x="pfx_x",
+        y="pfx_z",
+        color=color_col,
+        title="Pitch Movement",
+        labels={"pfx_x": "Horizontal Break", "pfx_z": "Vertical Break"},
+        opacity=0.75,
+    )
+    fig.update_layout(template="plotly_dark")
+    return fig