corentin/python-osm
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Minor improvement

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Corentin 2025-09-09 17:56:11 +09:00
commit 3d717d8e7f
1 changed files with 8 additions and 5 deletions
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13
map.py
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@ -156,6 +156,7 @@ def main():
zoom_scale: float = 0.
def get_map_raw_coords(lon: float, lat: float) -> tuple[int, int]:
nonlocal zoom_scale
return (
int(zoom_scale * math.radians(lon)),
int(zoom_scale * math.log(math.tan(math.pi / 4 + math.radians(lat) / 2)))
@ -167,7 +168,7 @@ def main():
# math.degrees(2 * math.atan(math.exp(y / zoom_scale)) - math.pi / 2.)
# )
zoom_level = 1 + int(-math.log2(((bounds.maxlon - bounds.minlon) * 2 * math.pi) / map_target_width))
zoom_level = math.ceil(-math.log2(((bounds.maxlon - bounds.minlon) * 2 * math.pi) / map_target_width))
zoom_scale = (2**zoom_level * map_target_width) / (2 * math.pi)
min_x, min_y = get_map_raw_coords(bounds.minlon, bounds.minlat)
max_x, max_y = get_map_raw_coords(bounds.maxlon, bounds.maxlat)
@ -193,9 +194,10 @@ def main():
node = nodes[node_id]
new_coord = get_map_coords(node.lon, node.lat)
# print(f'{new_coord=}')
if len(coords) < 2 or new_coord != coords[-1]:
if not coords or new_coord != coords[-1]:
coords.append(new_coord)
draw.polygon(coords, fill=color, outline=outline, width=width)
if len(coords) > 2: # noqa: PLR2004
draw.polygon(coords, fill=color, outline=outline, width=width)
def draw_way_line(way: Way, width: int, color: tuple[int, ...] | str, joint: str | None = None):
nonlocal bounds, draw, map_height, map_width, nodes
@ -204,9 +206,10 @@ def main():
node = nodes[node_id]
new_coord = get_map_coords(node.lon, node.lat)
# print(f'{new_coord=}')
if len(coords) < 2 or new_coord != coords[-1]:
if not coords or new_coord != coords[-1]:
coords.append(new_coord)
draw.line(coords, width=width, fill=color, joint=joint)
if len(coords) > 1:
draw.line(coords, width=width, fill=color, joint=joint)
for relation in relations.values():
if 'natural' in relation.tags and relation.tags['natural'] == 'wood':