update all examples

notebooks/05-save-load-networks.ipynb

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+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Save/load street network models to/from disk\n",
+    "\n",
+    "Author: [Geoff Boeing](https://geoffboeing.com/)\n",
+    "\n",
+    "  - [Overview of OSMnx](http://geoffboeing.com/2016/11/osmnx-python-street-networks/)\n",
+    "  - [GitHub repo](https://github.com/gboeing/osmnx)\n",
+    "  - [Examples, demos, tutorials](https://github.com/gboeing/osmnx-examples)\n",
+    "  - [Documentation](https://osmnx.readthedocs.io/en/stable/)\n",
+    "  - [Journal article/citation](http://geoffboeing.com/publications/osmnx-complex-street-networks/)\n",
+    "  \n",
+    "This notebook demonstrates how to save networks to disk as shapefiles, geopackages, graphml, and xml, and how to load an OSMnx-created network from a graphml file."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'0.13.0'"
+      ]
+     },
+     "execution_count": 1,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "import osmnx as ox\n",
+    "%matplotlib inline\n",
+    "ox.config(log_console=True, use_cache=True)\n",
+    "ox.__version__"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# get a network\n",
+    "place = 'Piedmont, California, USA'\n",
+    "G = ox.graph_from_place(place, network_type='drive')"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Shapefiles and GeoPackages for GIS"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# save graph as a shapefile\n",
+    "ox.save_graph_shapefile(G, filepath='./data/piedmont')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# save graph as a geopackage\n",
+    "ox.save_graph_geopackage(G, filepath='./data/piedmont.gpkg')"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## GraphML files for saving network and preserving topological detail"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# save/load graph as a graphml file: this is the best way to save your model\n",
+    "# for subsequent work later\n",
+    "filepath = './data/piedmont.graphml'\n",
+    "ox.save_graphml(G, filepath)\n",
+    "G = ox.load_graphml(filepath)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# if you want to work with your model in gephi, use gephi compatibility mode\n",
+    "ox.save_graphml(G, filepath=filepath, gephi=True)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## SVG file to work with in Adobe Illustrator"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# save street network as SVG\n",
+    "fig, ax = ox.plot_graph(G, show=False, save=True, \n",
+    "                        filename='piedmont', file_format='svg')"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Save points of interest or building footprints"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# get all amenities and save as a geopackage via geopandas\n",
+    "gdf = ox.pois_from_place(place, tags={'amenity':True})\n",
+    "gdf = gdf.apply(lambda c: c.astype(str) if c.name != 'geometry' else c, axis=0)\n",
+    "gdf.to_file('./data/pois.gpkg', driver='GPKG')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 9,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# get all building footprints and save as a geopackage via geopandas\n",
+    "gdf = ox.footprints_from_place(place)\n",
+    "gdf = gdf.apply(lambda c: c.astype(str) if c.name != 'geometry' else c, axis=0)\n",
+    "gdf.to_file('./data/building_footprints.gpkg', driver='GPKG')"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Save .osm XML files\n",
+    "\n",
+    "To save your graph to disk as a .osm formatted xml file, ensure that you created the graph with `ox.settings.all_oneway=True` for `save_graph_xml` to work properly."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 10,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# save graph to disk as .osm xml file\n",
+    "ox.config(all_oneway=True, log_console=True, use_cache=True)\n",
+    "G = ox.graph_from_place('Piedmont, California, USA', network_type='drive')\n",
+    "ox.save_graph_xml(G, filepath='./data/piedmont.osm')"
+   ]
+  }
+ ],
+ "metadata": {
+  "anaconda-cloud": {},
+  "kernelspec": {
+   "display_name": "Python (ox)",
+   "language": "python",
+   "name": "ox"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.8.2"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 4
+}