382747c2d1
Use Overpass API more effectively in 1x1 degree blocks, using same technique as genroads.py
132 lines
4.5 KiB
Python
Executable File
132 lines
4.5 KiB
Python
Executable File
#!/usr/bin/python
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# gencoastline.py - create appropriate COASTLINE_LIST STG files for ws30 from openstreetmap
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# Copyright (C) 2021 Stuart Buchanan
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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# You will need Python Overpass API - "pip install overpy"
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import xml.etree.ElementTree as etree
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import os
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import shutil
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import re
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import sys
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import collections
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from math import floor
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import calc_tile
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import overpy
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nodes = {}
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curr_coast_count = 0
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coast_count = 0
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if (len(sys.argv) != 6):
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print("Simple generation of COASTLINE_LIST files")
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print("")
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print("Usage: " + sys.argv[0] + " <scenery_dir> <lon1> <lat1> <lon2> <lat2>")
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print(" <scenery_dir> \tScenery directory to write to")
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print(" <lon1> <lat1> \tBottom left lon/lat of bounding box")
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print(" <lon2> <lat2> \tTop right lon/lat of bounding box")
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exit(1)
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scenery_prefix = sys.argv[1]
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lon1 = sys.argv[2]
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lat1 = sys.argv[3]
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lon2 = sys.argv[4]
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lat2 = sys.argv[5]
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os.makedirs(scenery_prefix, exist_ok=True)
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def feature_file(lat, lon):
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index = calc_tile.calc_tile_index((lon,lat))
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return str(index) + "_Coastline.txt"
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def add_to_stg(lat, lon):
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index = calc_tile.calc_tile_index((lon, lat))
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stg = os.path.join(scenery_prefix, calc_tile.directory_name((lon, lat)), str(index) + ".stg")
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#print("Writing " + stg)
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with open(stg, 'a') as f:
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f.write("COASTLINE_LIST " + feature_file(lat, lon) + "\n")
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def write_feature(lon, lat, coast):
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index = calc_tile.calc_tile_index((lon,lat))
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dirname = os.path.join(scenery_prefix, calc_tile.directory_name((lon, lat)))
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os.makedirs(dirname, exist_ok=True)
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txt = os.path.join(scenery_prefix, calc_tile.directory_name((lon, lat)), feature_file(lat, lon))
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#print("Writing " + txt)
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with open(txt, 'a') as f:
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for pt in coast :
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f.write(" " + str(pt.lon) + " " + str(pt.lat))
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f.write("\n")
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stg = os.path.join(scenery_prefix, calc_tile.directory_name((lon, lat)), str(index) + ".stg")
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if not os.path.isfile(stg) :
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# No STG - generate
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add_to_stg(lat, lon)
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else :
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road_exists = 0
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with open(stg, 'r') as f:
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for line in f:
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if line.startswith("COASTLINE_LIST " + feature_file(lat, lon)) :
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road_exists = 1
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if road_exists == 0 :
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add_to_stg(lat, lon)
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def parse_way(way) :
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global curr_coast_count, lat1, lon1, lat2, lon2
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pts = []
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width = 6.0
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road = 0
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river = 0
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# It's a road or river. Add it to appropriate tile entries.
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tileids = set()
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for pt in way.nodes:
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lon = float(pt.lon)
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lat = float(pt.lat)
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idx = calc_tile.calc_tile_index([lon, lat])
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if ((float(lon1) <= lon <= float(lon2)) and (float(lat1) <= lat <= float(lat2)) and (idx not in tileids)) :
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# Write the feature to a bucket provided it's within the lat/lon bounds and if we've not already written it there
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curr_coast_count = curr_coast_count + 1
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write_feature(lon, lat, way.nodes)
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tileids.add(idx)
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def writeOSM(result):
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for child in result.ways:
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parse_way(child)
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# Get River data
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for lat in range(int(lat1), int(lat2)):
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for lon in range(int(lon1), int(lon2)):
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osm_bbox = ",".join([str(lat), str(lon), str(lat+1), str(lon+1)])
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#api = overpy.Overpass(url="https://lz4.overpass-api.de/api/interpreter")
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api = overpy.Overpass(url="https://overpass.kumi.systems/api/interpreter")
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coast_query = "way[\"natural\"=\"coastline\"](" + osm_bbox + ");(._;>;);out;"
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curr_coast_count = 0
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result = api.query(coast_query)
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writeOSM(result)
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print(str(lat) + "," + str(lon) + ": " + str(curr_coast_count) + " pieces of coastline")
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coast_count = coast_count + curr_coast_count
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print(str(lat1) + "," + str(lon1) + " " + str(lat2) + "," + str(lon2))
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print("Wrote total of " + str(coast_count) + " pieces of coastline")
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