From 6b6842c72b28c1346ef501bc656ec3016d00e1c7 Mon Sep 17 00:00:00 2001
From: Jacek Kowalski <Jacek@jacekk.info>
Date: Mon, 10 Jun 2019 20:49:08 +0000
Subject: [PATCH] Add procedure to match TTSS to GTFS via bus positions
---
lib/mapper.php | 100 ++++++++++++++++++++++++++++++++++++++++---------
1 files changed, 81 insertions(+), 19 deletions(-)
diff --git a/lib/mapper.php b/lib/mapper.php
index a993f4c..933305f 100644
--- a/lib/mapper.php
+++ b/lib/mapper.php
@@ -5,8 +5,12 @@
use transit_realtime\FeedMessage;
class Mapper {
- private $jsonTrips = [];
+ private $ttssDate = NULL;
+ private $ttssTrips = [];
+ private $gtfsrtDate = NULL;
+ private $gtfsrtTrips = [];
private $gtfsTrips = [];
+ private $gtfsRoutes = [];
private $logger = NULL;
private $specialNames = [
@@ -27,8 +31,9 @@
}
public function loadTTSS($file) {
- $json = json_decode(file_get_contents($file));
- foreach($json->vehicles as $vehicle) {
+ $ttss = json_decode(file_get_contents($file));
+ $this->ttssDate = $ttss->lastUpdate;
+ foreach($ttss->vehicles as $vehicle) {
if(isset($vehicle->isDeleted) && $vehicle->isDeleted) continue;
if(!isset($vehicle->tripId) || !$vehicle->tripId) continue;
if(!isset($vehicle->name) || !$vehicle->name) continue;
@@ -39,26 +44,57 @@
continue;
}
}
- $this->jsonTrips[(int)$vehicle->tripId] = [
+ $name = explode(' ', $vehicle->name, 2);
+ $this->ttssTrips[(int)$vehicle->tripId] = [
'id' => $vehicle->id,
+ 'line' => $name[0],
+ 'direction' => $name[1],
'latitude' => (float)$vehicle->latitude / 3600000.0,
'longitude' => (float)$vehicle->longitude / 3600000.0,
];
}
- ksort($this->jsonTrips);
+ ksort($this->ttssTrips);
+ }
+
+ public function getTTSSDate() {
+ return $this->ttssDate / 1000.0;
}
public function loadGTFS($file) {
+ $buffer_size = 512;
+
+ $routes = fopen('phar://'.$file.'/routes.txt', 'r');
+ $route_header = fgetcsv($routes, $buffer_size);
+ while(($route = fgetcsv($routes, $buffer_size)) !== FALSE) {
+ $this->gtfsRoutes[$route[0]] = $route[2];
+ }
+ fclose($routes);
+
+ $trips = fopen('phar://'.$file.'/trips.txt', 'r');
+ $trip_header = fgetcsv($trips, $buffer_size);
+ var_dump($trip_header);
+ while(($trip = fgetcsv($trips, $buffer_size)) !== FALSE) {
+ $this->gtfsTrips[$trip[0]] = [
+ 'line' => $this->gtfsRoutes[$trip[1]] ?? NULL,
+ 'route' => $trip[1],
+ 'direction' => $trip[3],
+ ];
+ }
+ fclose($trips);
+ }
+
+ public function loadGTFSRT($file) {
$data = file_get_contents($file);
$feed = new FeedMessage();
$feed->parse($data);
+ $this->gtfsrtDate = $feed->header->timestamp;
foreach ($feed->getEntityList() as $entity) {
$vehiclePosition = $entity->getVehicle();
$position = $vehiclePosition->getPosition();
$vehicle = $vehiclePosition->getVehicle();
$trip = $vehiclePosition->getTrip();
$tripId = $trip->getTripId();
- $this->gtfsTrips[self::convertTripId($tripId)] = [
+ $this->gtfsrtTrips[self::convertTripId($tripId)] = [
'id' => $entity->getId(),
'num' => $vehicle->getLicensePlate(),
'tripId' => $tripId,
@@ -66,21 +102,47 @@
'longitude' => $position->getLongitude(),
];
}
- ksort($this->gtfsTrips);
+ ksort($this->gtfsrtTrips);
+ }
+
+ public function getGTFSRTDate() {
+ return $this->gtfsrtDate;
+ }
+
+ public function mapUsingCoords() {
+ $level = 0.002;
+ foreach($this->gtfsrtTrips as $gkey => $gtrip) {
+ $trip = $this->gtfsTrips[$gtrip['tripId']] ?? NULL;
+
+ if($trip === NULL) continue;
+
+ foreach($this->ttssTrips as $jkey => $jtrip) {
+ echo $gtrip['latitude'].' '.$jtrip['latitude']."\n";
+ echo $gtrip['longitude'].' '.$jtrip['longitude']."\n";
+ echo $jtrip['line'].' '.$trip['line']."\n";
+ echo "\n";
+
+ if($jtrip['line'] != $trip['line']) continue;
+ if(abs($gtrip['latitude'] - $jtrip['latitude']) > $level) continue;
+ if(abs($gtrip['longitude'] - $jtrip['longitude']) < $level) continue;
+
+ echo 'MATCH '.$gtrip['num'].' '.$gkey.' '.$jkey.' ('.($jkey-$gkey).')'."\n";
+ }
+ }
}
public function findOffset() {
- if(count($this->jsonTrips) == 0 || count($this->gtfsTrips) == 0) {
+ if(count($this->ttssTrips) == 0 || count($this->gtfsrtTrips) == 0) {
return NULL;
}
- $jsonTripIds = array_keys($this->jsonTrips);
- $gtfsTripIds = array_keys($this->gtfsTrips);
+ $ttssTripIds = array_keys($this->ttssTrips);
+ $gtfsTripIds = array_keys($this->gtfsrtTrips);
$possibleOffsets = [];
- for($i = 0; $i < count($this->jsonTrips); $i++) {
- for($j = 0; $j < count($this->gtfsTrips); $j++) {
- $possibleOffsets[$jsonTripIds[$i] - $gtfsTripIds[$j]] = TRUE;
+ for($i = 0; $i < count($this->ttssTrips); $i++) {
+ for($j = 0; $j < count($this->gtfsrtTrips); $j++) {
+ $possibleOffsets[$ttssTripIds[$i] - $gtfsTripIds[$j]] = TRUE;
}
}
$possibleOffsets = array_keys($possibleOffsets);
@@ -94,7 +156,7 @@
foreach($gtfsTripIds as $tripId) {
$tripId += $offset;
- if(isset($this->jsonTrips[$tripId])) {
+ if(isset($this->ttssTrips[$tripId])) {
$matched++;
}
}
@@ -114,11 +176,11 @@
return $bestOffset;
}
- public function getMapping($offset) {
+ public function mapUsingOffset($offset) {
$result = [];
- foreach($this->gtfsTrips as $gtfsTripId => $gtfsTrip) {
- $jsonTripId = $gtfsTripId + $offset;
- if(isset($this->jsonTrips[$jsonTripId])) {
+ foreach($this->gtfsrtTrips as $gtfsTripId => $gtfsTrip) {
+ $ttssTripId = $gtfsTripId + $offset;
+ if(isset($this->ttssTrips[$ttssTripId])) {
$data = numToTypeB($gtfsTrip['id']);
$num = $gtfsTrip['num'];
if(!is_array($data) || !isset($data['num'])) {
@@ -130,7 +192,7 @@
// Ignore due to incorrect depot markings in the data
//$this->logger->warn('Got '.$num.', database has '.$data['num']);
}
- $result[$this->jsonTrips[$jsonTripId]['id']] = $data;
+ $result[$this->ttssTrips[$ttssTripId]['id']] = $data;
}
}
return $result;
--
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