SRTM4Provider::initResourceReader() - Code Metrics - Inspection of "add additional classes for reading resources" - Runalyze/dem-reader - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( f12f85...ac41f4 )

by Hannes

created 2016-06-21 11:09 UTC

SRTM4Provider::initResourceReader() A

↳ Parent: SRTM4Provider

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	1

Metric	Value
c	1
b	0
f	1
dl	0
loc	4
ccs	3
cts	3
cp	1
rs	10
cc	1
eloc	2
nc	1
nop	0
crap	1

<?php

/*
 * This file is part of the Runalyze DEM Reader.
 *
 * (c) RUNALYZE <[email protected]>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace Runalyze\DEM\Provider\GeoTIFF;

class SRTM4Provider extends AbstractGeoTIFFProvider
{
    /** @var int */
    const MAX_LATITUDE = 60;

    /** @var int */
    const MAX_LONGITUDE = 180;

    /** @var float */
    const DEGREES_PER_TILE = 5.0;

    /** @var float */
    protected $CurrentTileHorizontalReference;

    /** @var float */
    protected $CurrentTileVerticalReference;

    /** @var float top left latitude */
    protected $CurrentTileLatitude;

    /** @var float top left longitude */
    protected $CurrentTileLongitude;

    /** @var string */
    protected $FilenameFormat = 'srtm_%02d_%02d.tif';

    public function initResourceReader()
    {
        $this->ResourceReader = new GeoTIFFReader();
    }

    /**
     * @param $format
     */
    public function setFilenameFormat($format)
    {
        $this->FilenameFormat = $format;
    }

    /**
     * @param  float                     $latitude
     * @param  float                     $longitude
     * @return string
     * @throws \InvalidArgumentException
     */
    protected function getFilenameFor($latitude, $longitude)
    {
        $this->loadTileReferencesFor($latitude, $longitude);

        return sprintf($this->FilenameFormat, $this->CurrentTileHorizontalReference, $this->CurrentTileVerticalReference);
    }

    /**
     * @param float $latitude
     * @param float $longitude
     */
    protected function loadTileReferencesFor($latitude, $longitude)
    {
        if (fmod($latitude, static::DEGREES_PER_TILE) === 0) {
            $this->CurrentTileVerticalReference = (static::MAX_LATITUDE - $latitude) / static::DEGREES_PER_TILE + 1;
        } else {
            $this->CurrentTileVerticalReference = ceil((static::MAX_LATITUDE - $latitude) / static::DEGREES_PER_TILE);
        }

        if (fmod($longitude, static::DEGREES_PER_TILE) === 0) {
            $this->CurrentTileHorizontalReference = (static::MAX_LONGITUDE + $longitude) / static::DEGREES_PER_TILE + 1;
        } else {
            $this->CurrentTileHorizontalReference = ceil((static::MAX_LONGITUDE + $longitude) / static::DEGREES_PER_TILE);
        }

        $this->CurrentTileLatitude = static::MAX_LATITUDE - (($this->CurrentTileVerticalReference - 1) * static::DEGREES_PER_TILE);
        $this->CurrentTileLongitude = (($this->CurrentTileHorizontalReference - 1) * static::DEGREES_PER_TILE) - static::MAX_LONGITUDE;

        if ($latitude < 0) {
            $this->CurrentTileLatitude = -$this->CurrentTileLatitude;
$answer = 42;

$correct = false;

$correct = (bool) $answer;
        }
    }

    /**
     * @param  float   $latitude
     * @param  float   $longitude
     * @return float[] array(row, col)
     */
    protected function getExactRowAndColFor($latitude, $longitude)
    {
        return $this->ResourceReader->getExactRowAndColFor(
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
            abs($this->CurrentTileLatitude - abs($latitude)) / static::DEGREES_PER_TILE,
            abs($this->CurrentTileLongitude - $longitude) / static::DEGREES_PER_TILE
        );
    }
}


1		<?php
2
3		/*
4		* This file is part of the Runalyze DEM Reader.
5		*
6		* (c) RUNALYZE <[email protected]>
7		*
8		* This source file is subject to the MIT license that is bundled
9		* with this source code in the file LICENSE.
10		*/
11
12		namespace Runalyze\DEM\Provider\GeoTIFF;
13
14		class SRTM4Provider extends AbstractGeoTIFFProvider
15		{
16		/** @var int */
17		const MAX_LATITUDE = 60;
18
19		/** @var int */
20		const MAX_LONGITUDE = 180;
21
22		/** @var float */
23		const DEGREES_PER_TILE = 5.0;
24
25		/** @var float */
26		protected $CurrentTileHorizontalReference;
27
28		/** @var float */
29		protected $CurrentTileVerticalReference;
30
31		/** @var float top left latitude */
32		protected $CurrentTileLatitude;
33
34		/** @var float top left longitude */
35		protected $CurrentTileLongitude;
36
37		/** @var string */
38		protected $FilenameFormat = 'srtm_%02d_%02d.tif';
39
40	8	public function initResourceReader()
41		{
42	8	$this->ResourceReader = new GeoTIFFReader();
43	8	}
44
45		/**
46		* @param $format
47		*/
48		public function setFilenameFormat($format)
49		{
50		$this->FilenameFormat = $format;
51		}
52
53		/**
54		* @param float $latitude
55		* @param float $longitude
56		* @return string
57		* @throws \InvalidArgumentException
58		*/
59	7	protected function getFilenameFor($latitude, $longitude)
60		{
61	7	$this->loadTileReferencesFor($latitude, $longitude);
62
63	7	return sprintf($this->FilenameFormat, $this->CurrentTileHorizontalReference, $this->CurrentTileVerticalReference);
64		}
65
66		/**
67		* @param float $latitude
68		* @param float $longitude
69		*/
70	7	protected function loadTileReferencesFor($latitude, $longitude)
71		{
72	7	if (fmod($latitude, static::DEGREES_PER_TILE) === 0) {
73		$this->CurrentTileVerticalReference = (static::MAX_LATITUDE - $latitude) / static::DEGREES_PER_TILE + 1;
74		} else {
75	7	$this->CurrentTileVerticalReference = ceil((static::MAX_LATITUDE - $latitude) / static::DEGREES_PER_TILE);
76		}
77
78	7	if (fmod($longitude, static::DEGREES_PER_TILE) === 0) {
79		$this->CurrentTileHorizontalReference = (static::MAX_LONGITUDE + $longitude) / static::DEGREES_PER_TILE + 1;
80		} else {
81	7	$this->CurrentTileHorizontalReference = ceil((static::MAX_LONGITUDE + $longitude) / static::DEGREES_PER_TILE);
82		}
83
84	7	$this->CurrentTileLatitude = static::MAX_LATITUDE - (($this->CurrentTileVerticalReference - 1) * static::DEGREES_PER_TILE);
85	7	$this->CurrentTileLongitude = (($this->CurrentTileHorizontalReference - 1) * static::DEGREES_PER_TILE) - static::MAX_LONGITUDE;
86
87	7	if ($latitude < 0) {
88	3	$this->CurrentTileLatitude = -$this->CurrentTileLatitude;
		0 ignored issues – show Documentation Bug introduced 2016-06-20 21:50 UTC by Report Bug Copy Issue Report The property `$CurrentTileLatitude` was declared of type `double`, but `-$this->CurrentTileLatitude` is of type `integer`. Maybe add a type cast? This check looks for assignments to scalar types that may be of the wrong type. To ensure the code behaves as expected, it may be a good idea to add an explicit type cast. $answer = 42; $correct = false; $correct = (bool) $answer; Loading history...
89	3	}
90	7	}
91
92		/**
93		* @param float $latitude
94		* @param float $longitude
95		* @return float[] array(row, col)
96		*/
97	6	protected function getExactRowAndColFor($latitude, $longitude)
98		{
99	6	return $this->ResourceReader->getExactRowAndColFor(
		0 ignored issues – show Bug introduced 2016-06-21 11:11 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Runalyze\DEM\Provider\ResourceReaderInterface` as the method `getExactRowAndColFor()` does only exist in the following implementations of said interface: `Runalyze\DEM\Provider\GeoTIFF\GeoTIFFReader`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
100	6	abs($this->CurrentTileLatitude - abs($latitude)) / static::DEGREES_PER_TILE,
101	6	abs($this->CurrentTileLongitude - $longitude) / static::DEGREES_PER_TILE
102	6	);
103		}
104		}
105

Runalyze / dem-reader

Push — master ( f12f85...ac41f4 )

SRTM4Provider::initResourceReader() A

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