Merge pull request #81 from eodaGmbH/feature/save-map

Feature/save map

_experimental/create_html.py

@@ -0,0 +1,7 @@
+from maplibre import Map, MapOptions
+from maplibre.basemaps import Carto
+from maplibre.utils import save_map
+
+m = Map(MapOptions(style=Carto.VOYAGER))
+filename = save_map(m, preview=True)
+print(filename)

_experimental/my_marimo_notebook.py

@@ -0,0 +1,90 @@
+import marimo
+
+__generated_with = "0.6.23"
+app = marimo.App(width="medium")
+
+
+@app.cell
+def __():
+    import marimo as mo
+
+    return (mo,)
+
+
+@app.cell
+def __():
+    from maplibre.controls import NavigationControl, ScaleControl
+    from maplibre.ipywidget import MapOptions, MapWidget
+
+    return MapOptions, MapWidget, NavigationControl, ScaleControl
+
+
+@app.cell
+def __():
+    deck_grid_layer = {
+        "@@type": "GridLayer",
+        "id": "GridLayer",
+        "data": "https://raw.githubusercontent.com/visgl/deck.gl-data/master/website/sf-bike-parking.json",
+        "extruded": True,
+        "getPosition": "@@=COORDINATES",
+        "getColorWeight": "@@=SPACES",
+        "getElevationWeight": "@@=SPACES",
+        "elevationScale": 4,
+        "cellSize": 200,
+        "pickable": True,
+    }
+    return (deck_grid_layer,)
+
+
+@app.cell
+def __(MapOptions):
+    map_options = MapOptions(
+        center=(-122.4, 37.74),
+        zoom=12,
+        hash=True,
+        pitch=40,
+    )
+    return (map_options,)
+
+
+@app.cell
+def __(MapWidget, NavigationControl, deck_grid_layer, map_options):
+    m = MapWidget(map_options)
+    m.use_message_queue(False)
+    m.add_control(NavigationControl())
+    m.add_deck_layers([deck_grid_layer])
+    m
+    return (m,)
+
+
+@app.cell
+def __(m):
+    m.clicked
+    return
+
+
+@app.cell
+def __(m):
+    m.zoom
+    return
+
+
+@app.cell
+def __(m):
+    m.center
+    return
+
+
+@app.cell
+def __(ScaleControl, m):
+    m.add_control(ScaleControl())
+    return
+
+
+@app.cell
+def __():
+    return
+
+
+if __name__ == "__main__":
+    app.run()

_experimental/my_marimo_notebook_anywidget.py

@@ -0,0 +1,88 @@
+import marimo
+
+__generated_with = "0.6.23"
+app = marimo.App(width="medium")
+
+
+@app.cell
+def __():
+    import anywidget
+    import marimo as mo
+    import traitlets
+
+    class CounterWidget(anywidget.AnyWidget):
+        # Widget front-end JavaScript code
+        _esm = """
+        function render({ model, el }) {
+          let getCount = () => model.get("count");
+          let button = document.createElement("button");
+          button.innerHTML = `count is ${getCount()}`;
+          button.addEventListener("click", () => {
+            model.set("count", getCount() + 1);
+            model.save_changes();
+          });
+          model.on("change:count", () => {
+            button.innerHTML = `count is ${getCount()}`;
+          });
+          el.appendChild(button);
+        }
+        export default { render };
+      """
+        _css = """
+        button {
+          padding: 5px !important;
+          border-radius: 5px !important;
+          background-color: #f0f0f0 !important;
+
+          &:hover {
+            background-color: lightblue !important;
+            color: white !important;
+          }
+        }
+      """
+
+        # Stateful property that can be accessed by JavaScript & Python
+        count = traitlets.Int(0).tag(sync=True)
+
+    cw = CounterWidget()
+    widget = mo.ui.anywidget(cw)
+    return CounterWidget, anywidget, cw, mo, traitlets, widget
+
+
+@app.cell
+def __(widget):
+    widget
+    return
+
+
+@app.cell
+def __(widget):
+    widget.value["count"] = 19
+    return
+
+
+@app.cell
+def __(widget):
+    widget.value
+    return
+
+
+@app.cell
+def __(cw):
+    cw.count = 20
+    return
+
+
+@app.cell
+def __(cw):
+    cw.count
+    return
+
+
+@app.cell
+def __():
+    return
+
+
+if __name__ == "__main__":
+    app.run()

maplibre/_utils.py

@@ -3,6 +3,7 @@
 import os
 import pathlib
 from tempfile import mkdtemp
+from uuid import uuid4
 
 # TODO: from pydantic import BaseModel as PydanticBaseModel
 from pydantic import BaseModel as BaseModel_
@@ -13,7 +14,7 @@ def fix_keys(d: dict) -> dict:
     return {k.replace("_", "-"): v for k, v in d.items() if v is not None}
 
 
-def get_output_dir(output_dir: str = None, prefix: str = "pymaplibregl_") -> str:
+def get_output_dir(output_dir: str = None, prefix: str = "py-maplibre-gl-") -> str:
     if not output_dir:
         output_dir = mkdtemp(prefix=prefix)
     else:
@@ -22,8 +23,12 @@ def get_output_dir(output_dir: str = None, prefix: str = "pymaplibregl_") -> str
     return output_dir
 
 
+def get_temp_filename(file_extension: str = ".html") -> str:
+    return get_output_dir() + os.sep + str(uuid4()).replace("-", "") + file_extension
+
+
 def get_internal_file_path(*args):
-    print(os.path.dirname(__file__))
+    # print(os.path.dirname(__file__))
     return os.path.join(os.path.dirname(__file__), *args)
 
 

maplibre/utils.py

@@ -1,8 +1,12 @@
 from __future__ import annotations
 
 import json
+import webbrowser
 from enum import Enum
 
+from ._utils import get_temp_filename
+from .map import Map
+
 try:
     from pandas import DataFrame
 except ImportError:
@@ -55,3 +59,16 @@ def get_bounds(geojson: dict) -> list:
         return
 
     return list(shapely.bounds(shapely.from_geojson(json.dumps(geojson))))
+
+
+def save_map(map: Map, filename: str = None, preview=True, **kwargs) -> str:
+    if not filename:
+        filename = get_temp_filename()
+
+    with open(filename, "w") as f:
+        f.write(map.to_html(**kwargs))
+
+    if preview:
+        webbrowser.open(filename)
+
+    return filename

tests/test_internal_utils.py

@@ -0,0 +1,14 @@
+from os.path import splitext
+
+from maplibre._utils import get_temp_filename
+
+
+def test_get_temp_filename():
+    filename = get_temp_filename()
+
+    print(filename)
+    filename, file_extension = splitext(filename)
+    print(filename, file_extension)
+
+    assert file_extension == ".html"
+    assert "py-maplibre-gl-" in filename