Add ColumnLayer example

bindings/pydeck/examples/column_layer.py

@@ -0,0 +1,39 @@
+import pydeck
+import pandas as pd
+
+DATA_URL = 'https://raw.githubusercontent.com/ajduberstein/geo_datasets/master/housing.csv'
+df = pd.read_csv(DATA_URL)
+
+view = pydeck.data_utils.compute_view(df[['lng', 'lat']])
+view.pitch = 75
+view.bearing = 60
+
+column_layer = pydeck.Layer(
+    'ColumnLayer',
+    data=df,
+    get_position=['lng', 'lat'],
+    get_elevation='price_per_unit_area',
+    elevation_scale=100,
+    radius=50,
+    get_fill_color=['mrt_distance * 10', 'mrt_distance', 'mrt_distance * 10', 140],
+    pickable=True,
+    auto_highlight=True
+)
+
+tooltip = {
+    'html': '<b>{mrt_distance}</b> meters away from an MRT station, costs <b>{price_per_unit_area}</b> NTD/sqm',
+    'style': {
+        'background': 'grey',
+        'color': 'white',
+        'font-family': '"Helvetica Neue", Arial',
+        'z-index': '10000'
+    }
+}
+
+r = pydeck.Deck(
+    column_layer,
+    initial_view_state=view,
+    tooltip=tooltip,
+    map_style='mapbox://styles/mapbox/satellite-v9')
+
+r.to_html('column_layer.html', notebook_display=False)