Import navigation data from Navigraph files

app/Console/Commands/NavdataCommand.php

@@ -0,0 +1,197 @@
+<?php
+
+namespace App\Console\Commands;
+
+use Illuminate\Console\Command;
+
+use App\Models\Navdata;
+use App\Models\Enums\NavaidType;
+
+
+class NavdataCommand extends Command
+{
+    protected $signature = 'phpvms:navdata';
+    protected $description = '';
+
+    /**
+     * Streaming file read
+     * @param $filename
+     * @return \Generator
+     */
+    protected function readFile($filename)
+    {
+        $fp = fopen($filename, 'rb');
+
+        while (($line = fgets($fp)) !== false) {
+            $line = rtrim($line, "\r\n");
+            if($line[0] === ';') {
+                continue;
+            }
+
+            yield $line;
+        }
+
+        fclose($fp);
+    }
+
+    /**
+     * Read and parse in the navaid file
+     */
+    public function read_wp_nav_aid()
+    {
+        /*
+         * ....,....1....,....2....,....3....,....4....,....5....,....6..
+         * CORPUS CHRISTI          CRP  VORD 27.903764 -97.444881115.50H
+         * CORPUS CHRISTI          ICRP ILSD 27.759597 -97.495508110.30T
+         * ROCKPORT                RKP  NDB  28.090569 -97.045544391.00N
+         * NNNNNNNNNNNNNNNNNNNNNNNNIIII TTTT dd.dddddd ddd.ddddddfff.ffC NNNN
+         * COL 1-24 Facility Name IIII
+         * COL 25-28 ID TTTT
+         * COL 30-33 Type  ILS  Insturment Landing System (Localizer)
+         *                 ILSD ILS/DME
+         *                 NDB  Nondirectional Beacon
+         *                 NDBM NDB/Locator Middle Marker (LMM)
+         *                 NDBO NDB/Locator Outer Marker (LOM)
+         *                 MARI Unknown - seems to be same as MHW class NDB
+         *                 VOR  VHF Omnidirectional Radio
+         *                 VORD VOR/DME (no separate code for VORTAC)
+         * dd.dddddd  COL 34-43 Latitude (-Lat for South)
+         * ddd.dddddd COL 44-54 Longitude ( -Lon for West)
+         * fff.ff     COL 55-60 Frequency (MHz for ILS/VOR KHz for NDB) See Note Below C
+         * Col 61 Class         H High Altitude/Long Range
+         *                      N NDB
+         *                      T Terminal/Short RangeNote:
+         *                          If NDB frequency is above 999.99 KHz then the
+         *                          frequecy field still starts in col 55 and C is col 62,
+         *  for example:....,....1....,....2....,....3....,....4....,....5....,....6..
+         * EREBUNI                 Y    NDBM 40.104053  44.4505831180.00N
+         * Where the frequency above is 1180.00 KHz (1.180 MHz)
+         */
+
+        $file_path = storage_path('/navdata/WPNAVAID.txt');
+        if (!file_exists($file_path)) {
+            $this->error('WPNAVAID.txt not found in storage/navdata');
+            return false;
+        }
+
+        $this->info('Importing navaids (WPNAVAID.txt) ...');
+        $generator = $this->readFile($file_path);
+
+        $imported = 0;
+        foreach($generator as $line) {
+            $navaid = [
+                'id' => trim(substr($line, 24, 4)), // ident column
+                'name'  => trim(substr($line, 0, 24)),
+                'type'  => trim(substr($line, 29, 4)),
+                'lat'   => trim(substr($line, 33, 9)),
+                'lon'   => trim(substr($line, 44, 10)),
+                'freq'  => trim(substr($line, 54, 6)),
+                'class' => trim($line[60]),
+            ];
+
+            switch($navaid['type'])
+            {
+                case 'ILS':
+                    $navaid['type'] = NavaidType::LOC;
+                    break;
+                case 'ILSDME':
+                    $navaid['type'] = NavaidType::LOC_DME;
+                    break;
+                case 'NDB':
+                case 'NDBM':
+                case 'NDBO':
+                case 'MARI':
+                    $navaid['type'] = NavaidType::NDB;
+                    break;
+                case 'VOR':
+                    $navaid['type'] = NavaidType::VOR;
+                    break;
+                case 'VORD':
+                    $navaid['type'] = NavaidType::VOR_DME;
+                    break;
+                default:
+                    $navaid['type'] = NavaidType::UNKNOWN;
+                    break;
+            }
+
+            Navdata::updateOrCreate(['id' => $navaid['id']], $navaid);
+
+            $imported++;
+            if($imported % 100 === 0) {
+                $this->info('Imported ' . $imported . ' entries...');
+            }
+        }
+
+        $this->info('Imported a total of ' . $imported . ' nav aids');
+    }
+
+    /**
+     *
+     */
+    public function read_wp_nav_fix()
+    {
+        /*
+         * ....,....1....,....2....,...3....,....4....,....
+         * 5.8750W                   8750W-87.000000 -50.000000
+         * GAREP                   GAREP 37.619689 128.073419
+         * CIHAD                   CIHAD 37.619719 -86.013228
+         * FOLAB                   FOLAB 37.619931 -87.359411
+         * KEKAD                   KEKAD 37.620000  67.518333
+         * NIKDE                   NIKDE 37.620567-122.563328
+         * ZUMAS                   ZUMAS 37.620575-113.167747
+         * NNNNN                   NNNNN dd.dddddd  dd.dddddd
+         * Col 1-5 & 25-30 Fix Name
+         * dd.dddddd  Col 32-40 Latitude degrees (-Lat for South, sign Col 31)
+         * ddd.dddddd  Col 41-51 Longitude degrees (-Lon for West, decimal always Col 45)
+         * Note: The duplicate name fields may be the result how the FAA
+         * provides data, where there are many more fixes defined than provide
+         * in the airac data. For example, most terminal data is not included.
+         * This data includes airway crossing, radar service boundaries, etc.
+         */
+
+        $file_path = storage_path('/navdata/WPNAVFIX.txt');
+        if(!file_exists($file_path)) {
+            $this->error('WPNAVFIX.txt not found in storage/navdata');
+            return false;
+        }
+
+        $this->info('Importing navaids (WPNAVFIX.txt) ...');
+        $generator = $this->readFile($file_path);
+
+        $imported = 0;
+        foreach ($generator as $line) {
+            $navfix = [
+                'id' => trim(substr($line, 0, 4)), // ident column
+                'name' => trim(substr($line, 24, 6)),
+                'type' => NavaidType::FIX,
+                'lat' => trim(substr($line, 30, 10)),
+                'lon' => trim(substr($line, 40, 11)),
+            ];
+
+            switch ($navfix['type']) {
+                default:
+                    $navfix['type'] = NavaidType::UNKNOWN;
+                    break;
+            }
+
+            Navdata::updateOrCreate(['id' => $navfix['id']], $navfix);
+
+            $imported++;
+            if ($imported % 100 === 0) {
+                $this->info('Imported ' . $imported . ' entries...');
+            }
+        }
+
+        $this->info('Imported a total of ' . $imported . ' nav fixes');
+    }
+
+    public function handle()
+    {
+        $this->info('Emptying the current navdata...');
+        Navdata::query()->truncate();
+
+        $this->info('Looking for nav files...');
+        $this->read_wp_nav_aid();
+        $this->read_wp_nav_fix();
+    }
+}

app/Console/Commands/Test.php

@@ -1,22 +0,0 @@
-<?php
-
-namespace App\Console\Commands;
-
-use Illuminate\Console\Command;
-
-
-class Test extends Command
-{
-    protected $signature = 'phpvms:test';
-    protected $description = '';
-
-    public function __construct()
-    {
-        parent::__construct();
-    }
-
-    public function handle()
-    {
-        print resource_path();
-    }
-}

app/Database/migrations/2017_12_20_004147_create_navdata_tables.php

@@ -17,21 +17,16 @@ class CreateNavdataTables extends Migration
          * See for defs, modify/update based on this
          * https://github.com/skiselkov/openfmc/blob/master/airac.h
          */
-        Schema::create('navpoints', function (Blueprint $table) {
+        Schema::create('navdata', function (Blueprint $table) {
-            $table->bigIncrements('id');
+            $table->string('id', 4);
-            $table->string('name', 10);
+            $table->string('name', 24);
-            $table->string('title', 25);
+            $table->unsignedInteger('type');
-            $table->string('airway', 7)->nullable();
-            $table->string('airway_type', 1)->nullable();
-            $table->bigInteger('seq')->nullable();
-            $table->string('loc', 4)->nullable();
             $table->float('lat', 7, 4)->default(0.0);
             $table->float('lon', 7, 4)->default(0.0);
-            $table->string('freq', 7);
+            $table->string('freq', 7)->nullable();
-            $table->integer('type');
 
+            $table->index('id');
             $table->index('name');
-            $table->index('airway');
         });
     }
 
@@ -42,6 +37,6 @@ class CreateNavdataTables extends Migration
      */
     public function down()
     {
-        Schema::dropIfExists('navpoints');
+        Schema::dropIfExists('navdata');
     }
 }

app/Models/Airport.php

@@ -28,7 +28,7 @@ class Airport extends Model
     ];
 
     protected $casts = [
-        'id' => 'string',
+
     ];
 
     /**

app/Models/Enums/Days.php

@@ -5,16 +5,19 @@
 
 namespace App\Models\Enums;
 
-
+/**
+ * Class Days
+ * @package App\Models\Enums
+ */
 class Days extends EnumBase {
 
-    const MONDAY    = 1;
+    const MONDAY    = 1 << 0;
-    const TUESDAY   = 2;
+    const TUESDAY   = 1 << 1;
-    const WEDNESDAY = 4;
+    const WEDNESDAY = 1 << 2;
-    const THURSDAY  = 8;
+    const THURSDAY  = 1 << 3;
-    const FRIDAY    = 16;
+    const FRIDAY    = 1 << 4;
-    const SATURDAY  = 32;
+    const SATURDAY  = 1 << 5;
-    const SUNDAY    = 64;
+    const SUNDAY    = 1 << 6;
 
     protected static $labels = [
         Days::MONDAY        => 'system.days.mon',

app/Models/Enums/NavaidType.php

@@ -0,0 +1,45 @@
+<?php
+/**
+ * The types of navaids
+ */
+
+namespace App\Models\Enums;
+
+/**
+ * Class NavaidType
+ * Types based on/compatible with OpenFMC
+ * https://github.com/skiselkov/openfmc/blob/master/airac.h
+ * @package App\Models\Enums
+ */
+class NavaidType extends EnumBase
+{
+    const VOR           = 1 << 0;
+    const VOR_DME       = 1 << 1;
+    const LOC           = 1 << 4;
+    const LOC_DME       = 1 << 5;
+    const NDB           = 1 << 6;
+    const TACAN         = 1 << 7;
+    const UNKNOWN       = 1 << 8;
+    const INNER_MARKER  = 1 << 9;
+    const OUTER_MARKER  = 1 << 10;
+    const FIX           = 1 << 11;
+    const ANY_VOR   = NavaidType::VOR | NavaidType::VOR_DME;
+    const ANY_LOC   = NavaidType::LOC | NavaidType::LOC_DME;
+    const ANY       = (NavaidType::UNKNOWN << 1) - 1;
+
+    /**
+     * Names and titles
+     * @var array
+     */
+    public static $labels = [
+        NavaidType::VOR     => 'VOR',
+        NavaidType::VOR_DME => 'VOR DME',
+        NavaidType::LOC     => 'Localizer',
+        NavaidType::LOC_DME => 'Localizer DME',
+        NavaidType::NDB     => 'Non-directional Beacon',
+        NavaidType::TACAN   => 'TACAN',
+        NavaidType::UNKNOWN => 'Unknown',
+        NavaidType::ANY_VOR => 'VOR',
+        NavaidType::ANY_LOC => 'Localizer',
+    ];
+}

app/Models/Navdata.php

@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Navdata extends Model
+{
+    public $table = 'navdata';
+    public $timestamps = false;
+    public $incrementing = false;
+
+    public $fillable = [
+        'id',
+        'name',
+        'type',
+        'lat',
+        'lon',
+        'freq',
+    ];
+
+    public $casts = [
+        'id' => 'string',
+        'type' => 'integer',
+    ];
+}

app/Models/Navpoint.php

@@ -1,10 +0,0 @@
-<?php
-
-namespace App;
-
-use Illuminate\Database\Eloquent\Model;
-
-class Navpoint extends Model
-{
-    public $table = 'navpoints';
-}

storage/navdata/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore