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 | 62 +++++++++++++++++++++++++++++++
1 files changed, 62 insertions(+), 0 deletions(-)
diff --git a/lib/mapper.php b/lib/mapper.php
index 43dd085..933305f 100644
--- a/lib/mapper.php
+++ b/lib/mapper.php
@@ -5,8 +5,12 @@
use transit_realtime\FeedMessage;
class Mapper {
+ private $ttssDate = NULL;
private $ttssTrips = [];
+ private $gtfsrtDate = NULL;
private $gtfsrtTrips = [];
+ private $gtfsTrips = [];
+ private $gtfsRoutes = [];
private $logger = NULL;
private $specialNames = [
@@ -28,6 +32,7 @@
public function loadTTSS($file) {
$ttss = json_decode(file_get_contents($file));
+ $this->ttssDate = $ttss->lastUpdate;
foreach($ttss->vehicles as $vehicle) {
if(isset($vehicle->isDeleted) && $vehicle->isDeleted) continue;
if(!isset($vehicle->tripId) || !$vehicle->tripId) continue;
@@ -39,8 +44,11 @@
continue;
}
}
+ $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)$vehicle->longitude / 3600000.0,
];
@@ -48,10 +56,38 @@
ksort($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 = $vehiclePosition->getPosition();
@@ -69,6 +105,32 @@
ksort($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($this->ttssTrips) == 0 || count($this->gtfsrtTrips) == 0) {
return NULL;
--
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