etape laptop

samples/example.geojson

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+{
+  "type": "FeatureCollection",
+  "features": [
+    {
+      "type": "Feature",
+      "geometry": { "type": "Point", "coordinates": [2.3522, 48.8566] },
+      "properties": {
+        "name": "Tour Eiffel",
+        "description": "Monument emblématique de Paris, construit en 1889."
+      }
+    },
+    {
+      "type": "Feature",
+      "geometry": { "type": "Point", "coordinates": [2.3499, 48.8530] },
+      "properties": {
+        "name": "Champ de Mars",
+        "description": "Grand parc public au pied de la Tour Eiffel."
+      }
+    },
+    {
+      "type": "Feature",
+      "geometry": { "type": "Point", "coordinates": [2.2945, 48.8584] },
+      "properties": {
+        "name": "La Défense",
+        "description": "Quartier d'affaires à l'ouest de Paris."
+      }
+    },
+    {
+      "type": "Feature",
+      "geometry": {
+        "type": "LineString",
+        "coordinates": [
+          [2.3522, 48.8566],
+          [2.3499, 48.8530],
+          [2.3387, 48.8606]
+        ]
+      },
+      "properties": {
+        "name": "Trajet exemple",
+        "description": "Un trajet entre trois points parisiens."
+      }
+    },
+    {
+      "type": "Feature",
+      "geometry": {
+        "type": "Polygon",
+        "coordinates": [[
+          [2.3380, 48.8600],
+          [2.3480, 48.8600],
+          [2.3480, 48.8550],
+          [2.3380, 48.8550],
+          [2.3380, 48.8600]
+        ]]
+      },
+      "properties": {
+        "name": "Zone exemple",
+        "description": "Un polygone dans le centre de Paris."
+      }
+    }
+  ]
+}