Update app.py

app.py

@@ -914,17 +914,28 @@ def predict(
     
     if annotation_text.strip():
         if boundary_polygon is not None:
-            text_x = ((inner_min_x + inner_max_x) / 2.0) - (int(len(annotation_text.strip()) / 2.0))
-            text_height_dxf = 0.75  
+            text_height_dxf = 0.75
             text_y_dxf = boundary_polygon.bounds[1] + 0.25
             font = get_font_face("Arial")
+            
+            # Create text paths first
             paths = text2path.make_paths_from_str(
                 annotation_text.strip().upper(),
-                font=font,  # Use default font
+                font=font,
                 size=text_height_dxf,
                 align=TextEntityAlignment.LEFT
             )
             
+            # Calculate actual text width from the path's bounds
+            text_bbox = path.bbox(paths)
+            text_width = text_bbox[2] - text_bbox[0]  # xmax - xmin
+            
+            # Calculate center point of inner tool contours
+            center_x = (inner_min_x + inner_max_x) / 2.0
+            
+            # Calculate starting x position for truly centered text
+            text_x = center_x - (text_width / 2.0)
+            
             # Create a translation matrix
             translation = ezdxf.math.Matrix44.translate(text_x, text_y_dxf, 0)
             # Apply the translation to each path