141 lines
4.7 KiB
Python
Executable File
141 lines
4.7 KiB
Python
Executable File
#!/usr/bin/python
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# genwater.py - create appropriate AREA_FEATURE_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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road_count = 0
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river_count = 0
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if (len(sys.argv) != 6):
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print("Simple generation of AREA_FEATURE_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, type):
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index = calc_tile.calc_tile_index((lon,lat))
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return str(index) + "_area_" + type + ".txt"
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def add_to_stg(lat, lon, type):
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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("AREA_FEATURE_LIST " + feature_file(lat, lon, type) + " " + type + "\n")
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def write_feature(lon, lat, pts, type):
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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, type))
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#print("Writing " + txt)
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with open(txt, 'a') as f:
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f.write("10000000 0 1 1 1 1") # Currently unused generic attributes. Also set area to 2000m^2
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for pt in pts :
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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, type)
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else :
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pts_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("AREA_FEATURE_LIST " + feature_file(lat, lon, type)) :
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pts_exists = 1
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if pts_exists == 0 :
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add_to_stg(lat, lon, type)
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def parse_way(way) :
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global road_count, river_count, lat1, lon1, lat2, lon2
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pts = []
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#feature_type = way.tags.get("water")
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feature_type = "Lake"
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# 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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write_feature(lon, lat, way.nodes, feature_type)
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tileids.add(idx)
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def parse_multi(relation):
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for way in relation.members:
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if (way.tags.get("role") == "outer") :
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parse_way(way)
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def writeOSM(result):
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#for child in result.relations:
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#parse_multi(child)
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for child in result.ways:
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parse_way(child)
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# Get Lake data
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osm_bbox = ",".join([lat1, lon1, lat2, lon2])
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api = overpy.Overpass(url="https://lz4.overpass-api.de/api/interpreter")
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query = "("
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water_types = ["lake", "basin", "oxbow", "lagoon", "reservoir"]
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for r in water_types :
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query = query + "way[\"water\"=\"" + r + "\"](" + osm_bbox + ");"
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query = query + "way[\"landuse\"=\"" + r + "\"](" + osm_bbox + ");"
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query = query + "way[\"natural\"=\"water\"](" + osm_bbox + ");"
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for r in water_types :
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query = query + "relation[\"water\"=\"" + r + "\"][\"type\"=\"multipolygon\"](" + osm_bbox + ");"
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query = query + ");(._;>;);out;"
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result = api.query(query)
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writeOSM(result)
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