cad area

python-cad-area/app.py

@@ -16,6 +16,30 @@ def health():
     })
 
 
+def get_float_or_none(name):
+    value = request.form.get(name, "").strip()
+
+    if value == "":
+        return None
+
+    try:
+        return float(value)
+    except ValueError:
+        return None
+
+
+def get_int_or_default(name, default=1):
+    value = request.form.get(name, "").strip()
+
+    if value == "":
+        return default
+
+    try:
+        return int(value)
+    except ValueError:
+        return default
+
+
 @app.route("/calculate", methods=["POST"])
 def calculate():
     try:
@@ -41,19 +65,37 @@ def calculate():
 
         pdf_bytes = uploaded_file.read()
 
-        scale_ratio = request.form.get("scale_ratio", "1")
+        scale_ratio = get_float_or_none("scale_ratio")
 
-        try:
-            scale_ratio = float(scale_ratio)
-            if scale_ratio <= 0:
-                scale_ratio = 1.0
-        except ValueError:
-            scale_ratio = 1.0
+        if scale_ratio is not None and scale_ratio <= 0:
+            scale_ratio = None
+
+        roi = {
+            "x": get_float_or_none("roi_x"),
+            "y": get_float_or_none("roi_y"),
+            "width": get_float_or_none("roi_width"),
+            "height": get_float_or_none("roi_height"),
+            "page": get_int_or_default("roi_page", 1)
+        }
+
+        has_roi = (
+            roi["x"] is not None and
+            roi["y"] is not None and
+            roi["width"] is not None and
+            roi["height"] is not None and
+            roi["width"] > 0 and
+            roi["height"] > 0
+        )
+
+        mode = request.form.get("mode", "auto_roi")
 
         result = calculate_pdf_vector_area(
             pdf_bytes=pdf_bytes,
             filename=uploaded_file.filename,
-            scale_ratio=scale_ratio
+            scale_ratio=scale_ratio,
+            profile_color=None,
+            roi=roi if has_roi else None,
+            mode=mode
         )
 
         status_code = 200 if result.get("success") else 422