asdfasdf

backend/src/routes/properties.js

@@ -13,41 +13,24 @@ const calculatePolygonArea = (coordinates) => {
     console.log('Invalid coordinates for area calculation:', coordinates);
     return 0;
   }
-  
   console.log('Calculating area for coordinates:', coordinates);
-  
-  // Shoelace formula for polygon area
-  // Coordinates are in [latitude, longitude] format (not GeoJSON standard)
   let area = 0;
   const n = coordinates.length;
-  
   for (let i = 0; i < n; i++) {
     const j = (i + 1) % n;
-    // coordinates[i][0] = latitude, coordinates[i][1] = longitude
-    area += coordinates[i][1] * coordinates[j][0]; // lng * lat
-    area -= coordinates[j][1] * coordinates[i][0]; // lng * lat
+    area += coordinates[i][1] * coordinates[j][0];
+    area -= coordinates[j][1] * coordinates[i][0];
   }
-  
   area = Math.abs(area) / 2;
   console.log('Raw shoelace area (in deg²):', area);
-  
-  // Convert from decimal degrees to square feet
-  // coordinates are [latitude, longitude] format
-  const avgLat = coordinates.reduce((sum, coord) => sum + coord[0], 0) / n; // coord[0] is latitude
+  const avgLat = coordinates.reduce((sum, coord) => sum + coord[0], 0) / n;
   console.log('Average latitude:', avgLat);
-  
-  // More accurate conversion using Haversine-based approach
-  const latInRadians = avgLat * Math.PI / 180;
-  const metersPerDegreeLat = 111320; // meters per degree latitude (constant)
-  const metersPerDegreeLng = 111320 * Math.cos(latInRadians); // meters per degree longitude (varies with latitude)
-  
-  // Convert to square meters, then to square feet
+  const metersPerDegreeLat = 111320;
+  const metersPerDegreeLng = 111320 * Math.cos(avgLat * Math.PI / 180);
   const areaInSquareMeters = area * metersPerDegreeLat * metersPerDegreeLng;
-  const areaInSquareFeet = areaInSquareMeters * 10.7639; // 1 m² = 10.7639 ft²
-  
+  const areaInSquareFeet = areaInSquareMeters * 10.7639;
   console.log('Area in square meters:', areaInSquareMeters);
   console.log('Area in square feet:', areaInSquareFeet);
-  
   return areaInSquareFeet;
 };