Update app.py

app.py

@@ -21,9 +21,15 @@ uploaded_file = st.file_uploader("Upload your DXF file", type=["dxf"])
 
 @st.cache_data
 def extract_geometry(file_bytes):
-    doc = ezdxf.read_binary(file_bytes)
-    msp = doc.modelspace()
+    # Wrap file in text buffer and read as ASCII
+    try:
+        text_buffer = io.TextIOWrapper(file_bytes, encoding='utf-8', errors='ignore')
+        doc = ezdxf.read(text_buffer)
+    except Exception as e:
+        st.error(f"Error reading DXF file: {e}")
+        return [], 0.75, [], 1
 
+    msp = doc.modelspace()
     rooms = []
     openings = []
     floors = 1
@@ -50,7 +56,7 @@ def extract_geometry(file_bytes):
                 y_vals = [p[1] for p in points]
                 length = abs(max(x_vals) - min(x_vals)) / 12  # inches to ft
                 width = abs(max(y_vals) - min(y_vals)) / 12
-                height = 10  # default wall height in ft unless labeled
+                height = 10  # default wall height in ft
                 if length > 2 and width > 2:  # Room
                     rooms.append((length, width, height))
                 else:
@@ -93,8 +99,8 @@ def generate_pdf(data_dict):
     return tmp.name
 
 if uploaded_file:
-    file_bytes = uploaded_file.read()
-    rooms, wall_thickness, openings, floors = extract_geometry(io.BytesIO(file_bytes))
+    file_bytes = io.BytesIO(uploaded_file.read())
+    rooms, wall_thickness, openings, floors = extract_geometry(file_bytes)
 
     st.success(f"✔️ Parsed {len(rooms)} rooms and {len(openings)} openings across {floors} floor(s).")
     st.write(f"📏 Wall Thickness: {wall_thickness} ft")
@@ -106,7 +112,7 @@ if uploaded_file:
     st.write(f"🏖️ **Sand Volume:** {sand:.2f} cft")
     st.write(f"🪣 **Cement Bags:** {cement} (50kg each)")
 
-    # Display table
+    # Table
     df = pd.DataFrame({
         "Item": ["Bricks", "Sand (cft)", "Cement (bags)"],
         "Quantity": [bricks, round(sand, 2), cement]
@@ -114,7 +120,7 @@ if uploaded_file:
 
     st.dataframe(df)
 
-    # Export buttons
+    # Export
     st.subheader("📤 Export")
     col1, col2 = st.columns(2)