kopia lustrzana https://github.com/anitagraser/ogd-at-lab
Cleanup
anitagraser
rodzic
eabb98b0cb
commit
ffc0125d8c
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@ -0,0 +1,85 @@
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Po Szerokość: | Wysokość: | Rozmiar: 3.4 KiB |
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@ -23,8 +23,7 @@
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"source": [
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"import hvplot.pandas\n",
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"from geopy.geocoders import Nominatim\n",
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"from utils.ogc_io import gdf_from_wfs\n",
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"from utils.plotting import hvplot_with_buffer\n",
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"from utils.dataaccess import get_elevation\n",
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"from utils.converting import location_to_gdf"
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]
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},
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@ -35,7 +34,7 @@
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"outputs": [],
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"source": [
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"address = \"Stephansdom, Wien\"\n",
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"locator = Nominatim(user_agent=\"myGeocoder\")\n",
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"locator = Nominatim(user_agent=\"OGD.AT-Lab\")\n",
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"location = locator.geocode(address)\n",
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"print(location.address)\n",
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"print(\"Latitude = {}, Longitude = {}\".format(location.latitude, location.longitude))\n",
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@ -59,51 +58,6 @@
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"gdf"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"jupyter": {
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"source_hidden": true
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}
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},
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"outputs": [],
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"source": [
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"from os.path import exists\n",
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"from urllib.request import urlretrieve\n",
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"\n",
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"def get_elevation(point):\n",
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" \"\"\"\n",
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" Retrieve elevation info from the Austrian Elevation Service\n",
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" \n",
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" Implementation based on https://github.com/maegger/AustrianElevation/blob/6e0f468b6094caace6cd35f00704e4087e851cec/tree/AustrianElevation/AustrianElevation.py#L97\n",
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" \n",
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" Parameters\n",
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" ----------\n",
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" point : Shapely Point\n",
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" Point in EPSG:3857 \n",
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" \"\"\"\n",
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" x = point.x\n",
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" y = point.y\n",
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" mod_x_path = x % 20000;\n",
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" path_x = x - mod_x_path;\n",
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" database = int(path_x );\n",
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" mod_y = y % 10;\n",
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" raster_y = y - mod_y;\n",
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" mod_x = x % 10;\n",
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" raster_x = int(x - mod_x);\n",
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" file = f'{int(raster_y)}.txt'\n",
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" url = f\"https://raw.githubusercontent.com/maegger/{database}/master/{int(raster_y)}.txt\"\n",
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" if not exists(file):\n",
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" urlretrieve(url, file)\n",
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" data = open(file, 'r')\n",
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" for line in data:\n",
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" x_wert = int(line.split(' ', 1 )[0])\n",
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" if x_wert == raster_x:\n",
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" elevationall = line.split(' ', 1 )[1]\n",
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" return int(elevationall)"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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@ -111,7 +65,7 @@
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"outputs": [],
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"source": [
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"gdf.loc[0, 'elevation'] = get_elevation(gdf.iloc[0].geometry)\n",
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"gdf"
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"gdf.to_crs('epsg:4326')"
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]
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},
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{
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@ -19,7 +19,7 @@
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"source": [
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"import hvplot.pandas\n",
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"from geopy.geocoders import Nominatim\n",
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"from utils.ogc_io import gdf_from_wfs\n",
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"from utils.dataaccess import gdf_from_wfs\n",
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"from utils.plotting import hvplot_with_buffer\n",
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"from utils.converting import location_to_gdf"
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]
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@ -39,7 +39,7 @@
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"metadata": {},
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"outputs": [],
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"source": [
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"locator = Nominatim(user_agent=\"myGeocoder\")\n",
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"locator = Nominatim(user_agent=\"OGD.AT-Lab\")\n",
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"location = locator.geocode(address)"
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]
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},
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@ -0,0 +1,50 @@
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from os.path import exists
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from urllib.request import urlretrieve
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import geopandas as gpd
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def gdf_from_wfs(layer):
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"""
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Get GeoPandas GeoDataFrame from data.wien.gv.at WFS service based on layer name
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Parameters
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----------
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layer : string
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WFS layer name
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"""
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file = f'{layer}.json'
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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"
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if not exists(file):
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urlretrieve(url, file)
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return gpd.read_file(file)
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def get_elevation(point):
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"""
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Retrieve elevation info from the Austrian Elevation Service
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Implementation based on https://github.com/maegger/AustrianElevation/blob/6e0f468b6094caace6cd35f00704e4087e851cec/tree/AustrianElevation/AustrianElevation.py#L97
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Parameters
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----------
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point : Shapely Point
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Point in EPSG:3857
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"""
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x = point.x
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y = point.y
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mod_x_path = x % 20000;
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path_x = x - mod_x_path;
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database = int(path_x );
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mod_y = y % 10;
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raster_y = y - mod_y;
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mod_x = x % 10;
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raster_x = int(x - mod_x);
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file = f'{int(raster_y)}.txt'
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url = f"https://raw.githubusercontent.com/maegger/{database}/master/{int(raster_y)}.txt"
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if not exists(file):
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urlretrieve(url, file)
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data = open(file, 'r')
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for line in data:
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x_wert = int(line.split(' ', 1 )[0])
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if x_wert == raster_x:
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elevationall = line.split(' ', 1 )[1]
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return int(elevationall)
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@ -1,19 +0,0 @@
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from os.path import exists
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from urllib.request import urlretrieve
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import geopandas as gpd
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def gdf_from_wfs(layer):
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"""
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Get GeoPandas GeoDataFrame from data.wien.gv.at WFS service based on layer name
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Parameters
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----------
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layer : string
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WFS layer name
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"""
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file = f'{layer}.json'
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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"
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if not exists(file):
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urlretrieve(url, file)
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return gpd.read_file(file)
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@ -25,7 +25,7 @@
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"outputs": [],
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"source": [
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"import hvplot.pandas\n",
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"from utils.ogc_io import gdf_from_wfs\n",
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"from utils.dataaccess import gdf_from_wfs\n",
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"from utils.plotting import hvplot_with_buffer"
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]
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},
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