Commit dc807658 authored by Matthias Betz's avatar Matthias Betz
Browse files

Merge branch 'master' of transfer.hft-stuttgart.de:circulargreensimcity/circulargreensimcity

parents eb6b5464 07eab64d
*.pyc
\ No newline at end of file
"""
Script to automatically add potential trees in a given region, along roads and paths.
Road information is downloaded from OpenStreetMap.
Trees are exported in a CSV table, a PNG diagram and an HTML interactive map.
"""
import pickle
from pathlib import Path
from collections import namedtuple
import folium
import matplotlib.pyplot as plt
import matplotlib.ticker as plticker
import numpy as np
import overpy
from pyproj import Transformer
from shapely import LineString, geometry, wkt
from shapely.ops import transform
import pandas as pd
import geopandas as gpd
from tree import Forest
from import_existing_trees import get_existing_forest
# TODO: Use Args
# TODO: Document
# TODO: Write issue
# TODO: Write tests?
# TODO: Export shapefile?
# From RegionChooser, or https://transfer.hft-stuttgart.de/gitlab/circulargreensimcity/circulargreensimcity/-/wikis/Fallstudien/Gromb%C3%BChl
WKT = "POLYGON((9.947021 49.803063, 9.947011 49.800917, 9.955025 49.800810, 9.955110 49.803019, 9.947021 49.803063))"
# Replace with None if no existing tree should be imported
EXISTING_TREES = 'existing_trees/Trees_ideal_2_20240227.shp'
# EXISTING_TREES = 'existing_trees/baumkataster/Baum.shp'
# Fellbach
# WKT = "POLYGON((9.271353 48.811327, 9.271911 48.809010, 9.272147 48.807187, 9.275838 48.807173, 9.275602 48.806749, 9.276138 48.806325, 9.277683 48.806424, 9.277319 48.812514, 9.275581 48.811991, 9.271353 48.811327))"
EPSG_ID = 25832
# Trees will be planted every TREE_DISTANCE along roads:
TREE_DISTANCE = 10 # [m]
# Unless there's already another tree closer than MIN_DISTANCE away:
MIN_DISTANCE = TREE_DISTANCE * 0.5 # [m]
# For display purposes only:
GRID = 100 # [m]
IGNORE_ROADS = set(['primary', 'unclassified', 'secondary',
'secondary_link', 'trunk', 'trunk_link', 'primary_link'])
SCRIPT_DIR = Path(__file__).resolve().parent
OUTPUT_DIR = SCRIPT_DIR / 'output'
Bounds = namedtuple("Bounds", "W S E N")
def load_region(wkt_polygon):
region = wkt.loads(wkt_polygon)
bounds = Bounds(*region.bounds)
return region, bounds
def get_basename(bounds):
return f'{bounds.S}__{bounds.N}__{bounds.W}__{bounds.E}_{TREE_DISTANCE}m'.replace('.', '_')
def get_osm_roads(bounds):
cache_dir = SCRIPT_DIR / 'cache'
cache_dir.mkdir(exist_ok=True)
cache_file = (cache_dir / get_basename(bounds)).with_suffix('.pickle')
if cache_file.exists():
print("Cache has been found. Parsing...")
with open(cache_file, 'rb') as cache:
ways = pickle.load(cache)
else:
print("Downloading data...")
# TODO: Could add trees from OSM or Bäumekataster too.
api = overpy.Overpass()
result = api.query(f"""
way({bounds.S},{bounds.W},{bounds.N},{bounds.E}) ["highway"];
(._;>;);
out body;
""")
ways = result.ways
print("Caching data...")
with open(cache_file, 'wb') as cache:
pickle.dump(ways, cache)
return ways
def set_plot(bounds, to_local_coordinates):
x_min, y_min = to_local_coordinates.transform(bounds.W, bounds.S)
x_max, y_max = to_local_coordinates.transform(bounds.E, bounds.N)
ax = plt.axes()
ax.set_xlim(x_min, x_max)
ax.set_ylim(y_min, y_max)
ax.set_aspect(1)
x_grid = plticker.MultipleLocator(base=GRID)
y_grid = plticker.MultipleLocator(base=GRID)
ax.xaxis.set_major_locator(x_grid)
ax.yaxis.set_major_locator(y_grid)
return ax
def place_trees(forest, ways, region, to_local, tree_distance, min_distance_2) -> Forest:
local_region = transform(to_local.transform, region)
for way in ways:
width = float(way.tags.get("width", 0))
highway = way.tags.get("highway")
if highway in IGNORE_ROADS:
color = 'orange'
else:
color = 'gray'
road_xy_s = [to_local.transform(node.lon, node.lat) for node in way.nodes]
tree_path = LineString(road_xy_s)
if width:
road_as_polygon = tree_path.buffer(width / 2, cap_style='flat')
tree_path = road_as_polygon.exterior
displayed_width = width
else:
# NOTE: Could try to guess width depending on highway type.
displayed_width = 1
road_xs, road_ys = zip(*road_xy_s)
plt.plot(road_xs, road_ys, linewidth=displayed_width, c=color, alpha=0.8, zorder=-1)
distances = np.arange(0, tree_path.length, tree_distance)
potential_trees = [tree_path.interpolate(
distance) for distance in distances]
if tree_path.boundary:
potential_trees += [tree_path.boundary.geoms[-1]]
for potential_tree in potential_trees:
x = potential_tree.x
y = potential_tree.y
if local_region.contains(geometry.Point(x, y)):
forest.add_tree_if_possible(min_distance_2, x, y,
color='#DFFF00',
type='Fake Tree',
description='Tilia tomentosa',
diameter=6,
height=10,
source='add_trees.py'
)
return forest
def plot_trees(bounds: Bounds, forest: Forest, tree_distance: float) -> None:
print("Exporting diagram...")
tree_xs, tree_ys, colors = forest.xs_ys_cs
plt.scatter(tree_xs, tree_ys, s=2, c=colors)
plt.grid(True)
plt.title(f"{bounds}\nTree distance : {tree_distance} m")
plt.gcf().set_size_inches(15, 10)
plt.savefig(
OUTPUT_DIR / f"{get_basename(bounds)}.png", bbox_inches='tight', dpi=300)
print(" DONE!")
def export_map(bounds, forest, epsg_id) -> None:
print("Exporting Map...")
to_wgs84 = Transformer.from_crs(f"EPSG:{epsg_id}", "EPSG:4326", always_xy=True)
interactive_map = folium.Map()
interactive_map.fit_bounds([(bounds.S, bounds.W), (bounds.N, bounds.E)])
for tree in forest:
lon, lat = to_wgs84.transform(tree.x, tree.y)
folium.Circle(
location=[lat, lon],
radius=tree.radius, # [m]
color="black",
weight=1,
fill_opacity=0.9,
opacity=1,
fill_color=tree.color,
fill=False, # gets overridden by fill_color
popup=repr(tree),
tooltip=str(tree),
).add_to(interactive_map)
folium.TileLayer(
tiles='https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}',
attr='Esri',
name='Esri Satellite',
overlay=False,
control=True
).add_to(interactive_map)
interactive_map.save(OUTPUT_DIR / f"{get_basename(bounds)}_trees.html")
print(" DONE!")
def export_csv(bounds, forest, wkt_polygon, tree_distance, min_distance, epsg_id) -> None:
print("Exporting CSV...")
with open(OUTPUT_DIR / f"{get_basename(bounds)}_trees.csv", "w") as csv:
csv.write(f"# Fake trees for; {wkt_polygon}\n")
csv.write(f"# Tree distance along roads; {tree_distance}; [m]\n")
csv.write(f"# Minimum allowed distance between trees; {min_distance}; [m]\n")
csv.write(f"# EPSG; {epsg_id}\n")
csv.write("# X; Y; Type; Description; Radius; Source\n")
csv.write("# [m]; [m]; [-]; [-]; [m]; [-]\n")
for tree in forest:
csv.write(f"{tree.x};{tree.y};{tree.type};{tree.description};{tree.radius};{tree.source}\n")
print(" DONE!")
def export_shapefile(bounds: Bounds, forest: Forest, tree_distance: float, epsg_id: str) -> None:
print("Exporting shapefile")
data = [{
'x': t.x, 'y': t.y,
'Bezeichnun': t.description, 'Baumart': t.type,
'Baumhöhe': t.height, 'Kronenbrei': t.diameter,
'Stammumfan': t.trunk_diameter, 'Quelle': t.source
}
for t in forest]
df = pd.DataFrame.from_dict(data)
gdf = gpd.GeoDataFrame(
df.drop(columns=['x', 'y']),
geometry=gpd.points_from_xy(df.x, df.y), crs=epsg_id
)
print(gdf)
basename = get_basename(bounds)
shp_dir = OUTPUT_DIR / basename
shp_dir.mkdir(exist_ok=True)
gdf.to_file(shp_dir / f"trees.shp", encoding='UTF-8')
print(" DONE!")
def main(wkt_polygon, epsg_id, tree_distance, min_distance, import_tree_shp) -> None:
region, bounds = load_region(wkt_polygon)
ways = get_osm_roads(bounds)
if import_tree_shp:
existing_forest = get_existing_forest(import_tree_shp)
else:
existing_forest = Forest()
print(existing_forest)
to_local = Transformer.from_crs("EPSG:4326", f"EPSG:{epsg_id}", always_xy=True)
set_plot(bounds, to_local)
forest = place_trees(existing_forest, ways, region, to_local, tree_distance, min_distance**2)
print(existing_forest)
plot_trees(bounds, forest, tree_distance)
export_map(bounds, forest, epsg_id)
export_csv(bounds, forest, wkt_polygon, tree_distance, min_distance, epsg_id)
export_shapefile(bounds, forest, tree_distance, epsg_id)
if __name__ == "__main__":
main(WKT, EPSG_ID, TREE_DISTANCE, MIN_DISTANCE, EXISTING_TREES)
PROJCS["ETRS89.UTM-32N",GEOGCS["LL-ETRF89",DATUM["ETRF89",SPHEROID["GRS1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["false_easting",500000.0],PARAMETER["false_northing",0.0],PARAMETER["central_meridian",9.0],PARAMETER["scale_factor",0.9996],PARAMETER["latitude_of_origin",0.0],UNIT["Meter",1.0]]
\ No newline at end of file
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PROJCS["ETRS89.UTM-32N",GEOGCS["LL-ETRF89",DATUM["ETRF89",SPHEROID["GRS1980",6378137.000,298.25722210],TOWGS84[0.0000,0.0000,0.0000,0.000000,0.000000,0.000000,0.00000000]],PRIMEM["Greenwich",0],UNIT["Degree",0.017453292519943295]],PROJECTION["Transverse_Mercator"],PARAMETER["false_easting",500000.000],PARAMETER["false_northing",0.000],PARAMETER["central_meridian",9.00000000000000],PARAMETER["scale_factor",0.9996],PARAMETER["latitude_of_origin",0.000],UNIT["Meter",1.00000000000000]]
\ No newline at end of file
from pathlib import Path
import geopandas as gpd
from tree import Tree, Forest
def get_existing_forest(shp_input):
print(f"Importing {shp_input}")
df = gpd.read_file(shp_input)
trees = []
for tree_row in df.itertuples():
point = tree_row.geometry
trees.append(Tree(point.x, point.y,
description=tree_row.Bezeichnun,
diameter=tree_row.Kronenbrei,
type=tree_row.Baumart,
trunk_diameter=tree_row.Stammumfan,
height=tree_row.Baumhöhe,
source=Path(shp_input).name
))
return Forest(trees)
if __name__ == "__main__":
print(repr(get_existing_forest('existing_trees/Trees_ideal_2_20240227.shp')))
# print(repr(get_existing_forest('output/49_80081__49_803063__9_947011__9_95511_10m/trees.shp')))
*.png
*.html
*.csv
*.cpg
*.dbf
*.shp
*.prj
*.shx
*.geojson
\ No newline at end of file
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