First notebook

README.md

@@ -1,2 +1,5 @@
-# ogd-at-lab
+# OGD.AT Lab
+
 Notebooks for Austrian open gov data analysis
+
+[![Binder](http://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/ogd-at-lab/notebooks/main?urlpath=lab/tree/index.ipynb)

environment.yml

@@ -0,0 +1,21 @@
+name: ogd-at-lab
+channels:
+  - conda-forge
+  - default
+dependencies:
+  - python=3.7
+  - numpy
+  - cython
+  - matplotlib
+  - seaborn
+  - pandas
+  - geopandas
+  - rasterio
+  - hvplot
+  - bokeh
+  - proj
+  - cartopy
+  - geoviews
+  - scikit-learn
+  - geopy
+  - panel

notebooks/index.ipynb

@@ -0,0 +1,136 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from os.path import exists\n",
+    "from urllib.request import urlretrieve\n",
+    "import geopandas as gpd\n",
+    "import hvplot.pandas"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "SIZE = 400"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def gdf_from_wfs(layer):\n",
+    "    file = f'{layer}.json'\n",
+    "    url = f\"https://data.wien.gv.at/daten/geo?service=WFS&request=GetFeature&version=1.1.0&typeName=ogdwien:{layer}&srsName=EPSG:4326&outputFormat=json\"\n",
+    "    if not exists(file):\n",
+    "        urlretrieve(url, file)\n",
+    "    return gpd.read_file(file)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "gdf = gdf_from_wfs('ELADESTELLEOGD')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "gdf.hvplot(geo=True, tiles='OSM', width=SIZE, height=SIZE, hover_cols=['DESIGNATION']).opts(active_tools=['wheel_zoom'])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def hvplot_with_buffer(gdf, buffer_size, title=''):\n",
+    "    buffered = gdf.to_crs('epsg:31287').buffer(100)\n",
+    "    buffered = gdf.copy().set_geometry(buffered).to_crs('epsg:4326')\n",
+    "    \n",
+    "    plot = ( buffered.hvplot(geo=True, title=title, tiles='OSM', width=SIZE, height=SIZE, alpha=0.5, line_width=0) * \n",
+    "      gdf.hvplot(geo=True, hover_cols=['DESIGNATION']) \n",
+    "    ).opts(active_tools=['wheel_zoom'])\n",
+    "    \n",
+    "    return plot"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "hvplot_with_buffer(gdf, 100)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "gdf2 = gdf_from_wfs('CITYBIKEOGD')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "hvplot_with_buffer(gdf, 100, title='EV Charging Stations') + hvplot_with_buffer(gdf2, 100, title='Citybike Stations')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.7.8"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}