made a transformer for the data to work with geojson.io

given_data/cityline_geojson/geojson_projection.py

@@ -0,0 +1,61 @@
+# CODE THAT IS GENERATED BY CHAT GPT
+
+import json
+from pyproj import Transformer
+import os
+
+# Define the folder path
+folder_path = "./given_data/cityline_geojson"
+
+# Ensure the output folder exists
+output_folder = "./given_data/cityline_geojson_reprojected"
+os.makedirs(output_folder, exist_ok=True)
+
+# Get all filenames in the folder
+file_names = os.listdir(folder_path)
+
+# Filter for GeoJSON files (optional)
+geojson_files = [f for f in file_names if f.endswith(".geojson")]
+
+for file_name in geojson_files:
+    # Load the GeoJSON data
+    input_file_path = os.path.join(folder_path, file_name)
+    with open(input_file_path, "r") as f:
+        geojson_data = json.load(f)
+
+    # Initialize the transformer (EPSG:3857 to EPSG:4326)
+    transformer = Transformer.from_crs("EPSG:3857", "EPSG:4326", always_xy=True)
+
+    # Reproject the coordinates
+    for feature in geojson_data["features"]:
+        geom_type = feature["geometry"]["type"]
+        coords = feature["geometry"]["coordinates"]
+
+        if geom_type == "Point":
+            # Transform Point coordinates
+            x, y = coords
+            lon, lat = transformer.transform(x, y)
+            feature["geometry"]["coordinates"] = [lon, lat]
+        elif geom_type == "LineString":
+            # Transform LineString coordinates
+            feature["geometry"]["coordinates"] = [
+                transformer.transform(x, y) for x, y in coords
+            ]
+        elif geom_type == "Polygon":
+            # Transform Polygon coordinates (outer ring and possible inner rings)
+            feature["geometry"]["coordinates"] = [
+                [transformer.transform(x, y) for x, y in ring] for ring in coords
+            ]
+
+    # Update the CRS to EPSG:4326
+    geojson_data["crs"] = {
+        "type": "name",
+        "properties": {"name": "urn:ogc:def:crs:EPSG::4326"},
+    }
+
+    # Save the reprojected GeoJSON
+    output_file_path = os.path.join(output_folder, file_name)
+    with open(output_file_path, "w") as f:
+        json.dump(geojson_data, f, indent=2)
+
+    print(f"Reprojection complete! Saved to {output_file_path}.")

given_data/cityline_geojson_reprojected/cityline_2025.geojson

@@ -0,0 +1,297 @@
+{
+  "type": "FeatureCollection",
+  "name": "cityline_2025",
+  "crs": {
+    "type": "name",
+    "properties": {
+      "name": "urn:ogc:def:crs:EPSG::4326"
+    }
+  },
+  "features": [
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 1,
+        "name": "Vatnsendi",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.809656537728184,
+          64.08563878170261
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 2,
+        "name": "Salir",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.84374406274503,
+          64.08960383362172
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 3,
+        "name": "Lindir",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.870826166122857,
+          64.09886013163094
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 4,
+        "name": "Sm\u00e1ralind",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.88593318977579,
+          64.10256178882854
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 5,
+        "name": "Hamraborg",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.90837264686027,
+          64.1110898195906
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 6,
+        "name": "Sundlaug K\u00f3pavogs",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.91850540662748,
+          64.11118634836693
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 7,
+        "name": "Bakkabraut",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.939618393342432,
+          64.1170418007092
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 8,
+        "name": "HR",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.931843803121048,
+          64.12238141279147
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 9,
+        "name": "Landsp\u00edtalinn",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.931475339129513,
+          64.13805657429226
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 10,
+        "name": "BS\u00cd",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.936523295813547,
+          64.13882804616311
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 11,
+        "name": "H\u00cd",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.946941615174197,
+          64.14227128171937
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 12,
+        "name": "L\u00e6kjartorg",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.935942965026882,
+          64.1476421981253
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 13,
+        "name": "Egilsh\u00f6ll",
+        "line": "blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.772510761581547,
+          64.14712403232718
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 14,
+        "name": "Sp\u00f6ngin",
+        "line": "blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.790860268359996,
+          64.1500079640408
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 16,
+        "name": "Krossm\u00fdrartorg",
+        "line": "blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.82503990937478,
+          64.12874297721763
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 15,
+        "name": "Vogabygg\u00f0",
+        "line": "blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.862918007704575,
+          64.13059187917774
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 17,
+        "name": "Laugardalur",
+        "line": "blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.883036141642386,
+          64.14018811495119
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 18,
+        "name": "H\u00e1t\u00fan",
+        "line": "blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.90352273957173,
+          64.14235765845228
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 19,
+        "name": "Hlemmur",
+        "line": "blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.91395027053217,
+          64.14332184560375
+        ]
+      }
+    }
+  ]
+}

given_data/cityline_geojson_reprojected/cityline_2029.geojson

@@ -0,0 +1,402 @@
+{
+  "type": "FeatureCollection",
+  "name": "cityline_2029",
+  "crs": {
+    "type": "name",
+    "properties": {
+      "name": "urn:ogc:def:crs:EPSG::4326"
+    }
+  },
+  "features": [
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 1,
+        "name": "Vatnsendi",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.809656537728184,
+          64.08563878170261
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 2,
+        "name": "Salir",
+        "line": "red/green"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.84374406274503,
+          64.08960383362172
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 3,
+        "name": "Lindir",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.870826166122857,
+          64.09886013163094
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 4,
+        "name": "Sm\u00e1ralind",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.88593318977579,
+          64.10256178882854
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 5,
+        "name": "Hamraborg",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.90837264686027,
+          64.1110898195906
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 6,
+        "name": "Sundlaug K\u00f3pavogs",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.91850540662748,
+          64.11118634836693
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 7,
+        "name": "Bakkabraut",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.939618393342432,
+          64.1170418007092
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 8,
+        "name": "HR",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.931843803121048,
+          64.12238141279147
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 9,
+        "name": "Landsp\u00edtalinn",
+        "line": "red/green/orange"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.931475339129513,
+          64.13805657429226
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 10,
+        "name": "BS\u00cd",
+        "line": "red/green/orange/blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.936523295813547,
+          64.13882804616311
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 11,
+        "name": "H\u00cd",
+        "line": "red/green/orange/blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.946941615174197,
+          64.14227128171937
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 12,
+        "name": "L\u00e6kjartorg",
+        "line": "red/orange/blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.935942965026882,
+          64.1476421981253
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 13,
+        "name": "Egilsh\u00f6ll",
+        "line": "blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.772510761581547,
+          64.14712403232718
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 14,
+        "name": "Sp\u00f6ngin",
+        "line": "blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.790860268359996,
+          64.1500079640408
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 15,
+        "name": "Krossm\u00fdrartorg",
+        "line": "blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.82503990937478,
+          64.12874297721763
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 16,
+        "name": "Vogabygg\u00f0",
+        "line": "blue/green"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.862918007704575,
+          64.13059187917774
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 17,
+        "name": "Laugardalur",
+        "line": "blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.883036141642386,
+          64.14018811495119
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 18,
+        "name": "H\u00e1t\u00fan",
+        "line": "blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.90352273957173,
+          64.14235765845228
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 19,
+        "name": "Hlemmur",
+        "line": "blue"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.91395027053217,
+          64.14332184560375
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 20,
+        "name": "Fell",
+        "line": "green"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.82860988556863,
+          64.09968748530183
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 21,
+        "name": "Mj\u00f3dd",
+        "line": "green"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.84187597151898,
+          64.11236523874403
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 22,
+        "name": "Kringlan",
+        "line": "green/orange"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.893217447015136,
+          64.13263548006191
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 23,
+        "name": "Ei\u00f0istorg",
+        "line": "green"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.98386493227512,
+          64.15069114354586
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 24,
+        "name": "Grandi",
+        "line": "orange"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.940719387431038,
+          64.15632442556803
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 25,
+        "name": "\u00c1rb\u00e6r",
+        "line": "orange"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.813202520438914,
+          64.11963930460664
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 26,
+        "name": "Nor\u00f0lingaholt",
+        "line": "orange"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.770696898108202,
+          64.1036918935602
+        ]
+      }
+    }
+  ]
+}

given_data/cityline_geojson_reprojected/cityline_2030.geojson

@@ -0,0 +1,447 @@
+{
+  "type": "FeatureCollection",
+  "name": "cityline_2030",
+  "crs": {
+    "type": "name",
+    "properties": {
+      "name": "urn:ogc:def:crs:EPSG::4326"
+    }
+  },
+  "features": [
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 1,
+        "name": "Vatnsendi",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.809656537728184,
+          64.08563878170261
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 2,
+        "name": "Salir",
+        "line": "red/green"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.84374406274503,
+          64.08960383362172
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 3,
+        "name": "Lindir",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.870826166122857,
+          64.09886013163094
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 4,
+        "name": "Sm\u00e1ralind",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.88593318977579,
+          64.10256178882854
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 5,
+        "name": "Hamraborg",
+        "line": "red/purple"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.90837264686027,
+          64.1110898195906
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 6,
+        "name": "Sundlaug K\u00f3pavogs",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.91850540662748,
+          64.11118634836693
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 7,
+        "name": "Bakkabraut",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.939618393342432,
+          64.1170418007092
+        ]
+      }
+    },
+    {
+      "type": "Feature",
+      "properties": {
+        "id": 8,
+        "name": "HR",
+        "line": "red"
+      },
+      "geometry": {
+        "type": "Point",
+        "coordinates": [
+          -21.931843803121048,
+          64.12238141279147
+        ]
+      }
+    },
+    {
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requirements.txt

@@ -0,0 +1,4 @@
+pyproj
+geopandas
+pandas
+matplotlib