kopia lustrzana https://github.com/anitagraser/ogd-at-lab
131 wiersze
3.1 KiB
Plaintext
131 wiersze
3.1 KiB
Plaintext
{
|
|
"cells": [
|
|
{
|
|
"cell_type": "markdown",
|
|
"metadata": {},
|
|
"source": [
|
|
"# Accessing Different Types of Webservices\n",
|
|
"\n",
|
|
"[](https://mybinder.org/v2/gh/anitagraser/ogd-at-lab/main?urlpath=lab/tree/notebooks/webmapping.ipynb)"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"metadata": {},
|
|
"source": [
|
|
"## 1. Basemap tiles (XYZ tiles)\n",
|
|
"\n",
|
|
"Documentation: http://geoviews.org/user_guide/Working_with_Bokeh.html\n"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {},
|
|
"outputs": [],
|
|
"source": [
|
|
"import holoviews as hv\n",
|
|
"import geoviews as gv\n",
|
|
"gv.extension('bokeh')\n",
|
|
"\n",
|
|
"basemap = hv.element.tiles.OSM().opts(width=450, height=450)\n",
|
|
"basemap"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"metadata": {},
|
|
"source": [
|
|
"## 2. Web Map Services (WMS) \n",
|
|
"Source: https://github.com/holoviz/geoviews/issues/481"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {},
|
|
"outputs": [],
|
|
"source": [
|
|
"def load_wms(server=\"http://data.wien.gv.at/daten/geo\", layer=\"ogdwien:DONAUINSPKTOGD\", extents=(1825290,6144246,1827693,6146435)):\n",
|
|
" url = f\"{server}?&service=WMS&request=GetMap&layers={layer}&styles=&format=image/png&transparent=true&version=1.3.0&width=256&height=256&crs=EPSG:3857\"\n",
|
|
" url = url + \"&bbox={XMIN},{YMIN},{XMAX},{YMAX}\"\n",
|
|
" return hv.Tiles(url, extents=extents)"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {},
|
|
"outputs": [],
|
|
"source": [
|
|
"map_with_overlay = basemap * load_wms()\n",
|
|
"map_with_overlay"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {},
|
|
"outputs": [],
|
|
"source": [
|
|
"map_with_overlay * load_wms(layer=\"ogdwien:DONAUKILOMETEROGD\")"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "markdown",
|
|
"metadata": {},
|
|
"source": [
|
|
"### 3. Web Feature Services (WFS) \n"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {},
|
|
"outputs": [],
|
|
"source": [
|
|
"import geopandas as gpd\n",
|
|
"from urllib.request import urlretrieve\n",
|
|
"import hvplot.pandas\n",
|
|
"\n",
|
|
"layer = 'RADGRAETZELOGD'\n",
|
|
"file = f'data/{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",
|
|
"urlretrieve(url, file)\n",
|
|
"gdf = gpd.read_file(file)\n",
|
|
"gdf"
|
|
]
|
|
},
|
|
{
|
|
"cell_type": "code",
|
|
"execution_count": null,
|
|
"metadata": {},
|
|
"outputs": [],
|
|
"source": [
|
|
"gdf.hvplot(geo=True, tiles='OSM', hover_cols='all').opts(active_tools=['wheel_zoom'])"
|
|
]
|
|
}
|
|
],
|
|
"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": "3.7.10"
|
|
}
|
|
},
|
|
"nbformat": 4,
|
|
"nbformat_minor": 4
|
|
}
|