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Streckenverläufe kompakt speichern und nur bei Bedarf lesen

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pfaedle erzeugt für die Schweiz eine 2.6-GB-shapes.txt; die wird jetzt
in shapes.bin (670 MB, mmap) umgewandelt. Halt-Positionen kommen aus
shape_dist_traveled. RAM-Empfehlung im README ergänzt.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01X48pE4bzjHej8w9HyZXCjb
This commit is contained in:
Guido
2026-10-21 15:07:14 +02:00
co-authored by Claude Opus 5.5
parent efeba65fb1
commit 0cd2c3951a
5 changed files with 74 additions and 47 deletions
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tests/test_core.py
+9 -7
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@@ -19,9 +19,9 @@ FILES = {
"R1,11,IC5,,IC,102\nB1,11,31,,B,700\n",
"trips.txt": "route_id,service_id,trip_id,trip_headsign,trip_short_name,shape_id\n"
"R1,S,T1,Ziel,812,SH1\nB1,S,BUS,Irgendwo,1,\n",
"stop_times.txt": "trip_id,arrival_time,departure_time,stop_id,stop_sequence\n"
"T1,08:00:00,08:00:00,A,1\nT1,08:10:00,08:12:00,B,2\nT1,08:20:00,08:20:00,C,3\n"
"BUS,08:00:00,08:00:00,A,1\nBUS,08:05:00,08:05:00,X,2\n",
"stop_times.txt": "trip_id,arrival_time,departure_time,stop_id,stop_sequence,shape_dist_traveled\n"
"T1,08:00:00,08:00:00,A,1,0\nT1,08:10:00,08:12:00,B,2,8000\nT1,08:20:00,08:20:00,C,3,19000\n"
"BUS,08:00:00,08:00:00,A,1,\nBUS,08:05:00,08:05:00,X,2,\n",
"stops.txt": "stop_id,stop_name,stop_lat,stop_lon,parent_station,platform_code\n"
"A,Alpha,47.0,8.0,,1\nB,Beta,47.0,8.1,,2\nC,Gamma,47.1,8.1,,3\nX,Bushalt,47.5,8.5,,\n",
"calendar.txt": "service_id,monday,tuesday,wednesday,thursday,friday,saturday,sunday,start_date,end_date\n"
@@ -30,8 +30,9 @@ FILES = {
"feed_info.txt": "feed_publisher_name,feed_version\nX,20261017\n",
}
# Streckenverlauf mit Umweg nach Süden zwischen A und B
SHAPE = "shape_id,shape_pt_lat,shape_pt_lon,shape_pt_sequence\n" \
"SH1,47.0,8.0,1\nSH1,46.98,8.05,2\nSH1,47.0,8.1,3\nSH1,47.1,8.1,4\n"
# so wie pfaedle es schreibt: mit shape_dist_traveled in Metern (absichtlich nicht sortiert)
SHAPE = "shape_id,shape_pt_lat,shape_pt_lon,shape_pt_sequence,shape_dist_traveled\n" \
"SH1,46.98,8.05,2,4000\nSH1,47.0,8.0,1,0\nSH1,47.0,8.1,3,8000\nSH1,47.1,8.1,4,19000\n"
DAY = dt.date(2026, 10, 21)
@@ -45,6 +46,8 @@ def make_feed(tmp: Path, shapes=True) -> Feed:
assert meta["feed_version"] == "20261017" and meta["trips"] == 1 and meta["stop_times"] == 3, meta
if shapes:
(tmp / "rail" / "shapes.txt").write_text(SHAPE)
prepare.pack_shapes(tmp / "rail")
assert not (tmp / "rail" / "shapes.txt").exists()
with open(tmp / "rail" / "trips.txt") as f:
assert "SH1" in f.read()
(tmp / "rail" / "meta.json").write_text(json.dumps(meta))
@@ -82,9 +85,8 @@ def test_all():
with tempfile.TemporaryDirectory() as d:
f = make_feed(Path(d))
# Halt B liegt auf dem Streckenverlauf bei Punkt 3, nicht auf der Luftlinie
pts, cum, sd = f.geometry(0)
assert abs(sd[1] - cum[2]) < 1 and abs(sd[2] - cum[3]) < 1
assert len(pts) == 4 and abs(pts[1][1] - 46.98) < 1e-4 and sd == [0, 8000, 19000] and cum[1] == 4000
assert f.vehicles(at(7, 59), {}) == []
v = f.vehicles(at(8, 5), {})