mongo

mongo/pipeline1.py

@@ -0,0 +1,45 @@
+pipeline = [
+    {
+        '$addFields': {
+            'location': {
+                'type': 'Point', 
+                'coordinates': [
+                    {
+                        '$toDouble': '$latdec'
+                    }, {
+                        '$toDouble': '$londec'
+                    }
+                ]
+            }
+        }
+    }, {
+        '$match': {
+            'location': {
+                '$geoWithin': {
+                    '$centerSphere': [
+                        [
+                            35.9, -78.9
+                        ], 100 / 3963.2
+                    ]
+                }
+            }
+        }
+    }, {
+        '$project': {
+            '_id': 1, 
+            'recrd': 1, 
+            'vesslterms': 1, 
+            'feature_type': 1, 
+            'chart': 1, 
+            'latdec': 1, 
+            'londec': 1, 
+            'gp_quality': 1, 
+            'depth': 1, 
+            'sounding_type': 1, 
+            'history': 1, 
+            'quasou': 1, 
+            'watlev': 1, 
+            'coordinates': 1
+        }
+    }
+]

mongo/pipeline2.py

@@ -0,0 +1,15 @@
+pipeline = [
+    {
+        '$geoNear': {
+            'near': {
+                'type': 'Point', 
+                'coordinates': [
+                    -78.9, 35.9
+                ]
+            }, 
+            'distanceField': 'distance', 
+            'maxDistance': 160934.4,
+            'spherical': True
+        }
+    }
+]