Add marimo city centers example

Author: Stefan Kuethe

marimo/fly-to-city-centers.py

@@ -0,0 +1,73 @@
+
+
+import marimo
+
+__generated_with = "0.13.2"
+app = marimo.App(width="medium")
+
+
+@app.cell
+def _():
+    import marimo as mo
+    import openlayers as ol
+    return mo, ol
+
+
+@app.cell
+def _():
+    city_centers = {
+        "London": (0.1278, 51.5074),
+        "Paris": (2.3522, 48.8566),
+        "New York": (-74.0060, 40.7128),
+    }
+    return (city_centers,)
+
+
+@app.cell
+def _():
+    city = "London"
+    return (city,)
+
+
+@app.cell
+def _(city, city_centers, ol):
+    m = ol.MapWidget(ol.View(center=city_centers[city], zoom=8, projection="EPSG:4326"))
+    return (m,)
+
+
+@app.cell
+def _(m, mo):
+    widget = mo.ui.anywidget(m)
+    return (widget,)
+
+
+@app.cell
+def _(widget):
+    widget
+    return
+
+
+@app.cell(hide_code=True)
+def _(city, city_centers, m, mo):
+    mo.ui.dropdown(
+        options=city_centers.keys(),
+        label="City", value=city,
+        # on_change=lambda key: m.add_view_call("animate", dict(center=city_centers[key], duration=2000))
+        on_change=lambda key: m.set_center(*city_centers[key])
+    )
+    return
+
+
+@app.cell
+def _(widget):
+    widget.value["view_state"]
+    return
+
+
+@app.cell
+def _():
+    return
+
+
+if __name__ == "__main__":
+    app.run()