LinearFunction::fromTwoPoints() - Code Metrics - tmilos/cgi-calc - Measure and Improve Code Quality continuously with Scrutinizer

LinearFunction::fromTwoPoints() A
last analyzed 2016-04-05 13:43 UTC

↳ Parent: LinearFunction

Complexity

Conditions	2
Paths	2

Size

Total Lines	11
Code Lines	6

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	11
rs	9.4285
cc	2
eloc	6
nc	2
nop	2

<?php

/*
 * This file is part of the CGI-Calc package.
 *
 * (c) Milos Tomic <[email protected]>
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 */

namespace Cgi\Calc\Func;

use Cgi\Calc\FunctionInterface;
use Cgi\Calc\Point;

class LinearFunction implements FunctionInterface
{
    /** @var float */
    private $k;

    /** @var float */
    private $n;

    /**
     * @param float $k
     * @param float $n
     */
    public function __construct($k, $n)
    {
        $this->k = $k;
        $this->n = $n;
    }

    /**
     * @param Point $a
     * @param Point $b
     *
     * @return LinearFunction
     *
     * @throws \RuntimeException When $a and $b points have same x
     */
    public static function fromTwoPoints(Point $a, Point $b)
    {
        if ($a->getX() === $b->getX()) {
            throw new \RuntimeException('Line can be defined only by two points with different X');
        }

        $k = ($a->getY() - $b->getY()) / ($a->getX() - $b->getX());
        $n = $a->getY() - $k * $a->getX();

        return new self($k, $n);
    }

    /**
     * @param float $x
     *
     * @return float
     */
    public function evaluate($x)
    {
        return $this->k * $x + $this->n;
    }
}


1			<?php
2
3			/*
4			* This file is part of the CGI-Calc package.
5			*
6			* (c) Milos Tomic <[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 Cgi\Calc\Func;
13
14			use Cgi\Calc\FunctionInterface;
15			use Cgi\Calc\Point;
16
17			class LinearFunction implements FunctionInterface
18			{
19			/** @var float */
20			private $k;
21
22			/** @var float */
23			private $n;
24
25			/**
26			* @param float $k
27			* @param float $n
28			*/
29			public function __construct($k, $n)
30			{
31			$this->k = $k;
32			$this->n = $n;
33			}
34
35			/**
36			* @param Point $a
37			* @param Point $b
38			*
39			* @return LinearFunction
40			*
41			* @throws \RuntimeException When $a and $b points have same x
42			*/
43			public static function fromTwoPoints(Point $a, Point $b)
44			{
45			if ($a->getX() === $b->getX()) {
46			throw new \RuntimeException('Line can be defined only by two points with different X');
47			}
48
49			$k = ($a->getY() - $b->getY()) / ($a->getX() - $b->getX());
50			$n = $a->getY() - $k * $a->getX();
51
52			return new self($k, $n);
53			}
54
55			/**
56			* @param float $x
57			*
58			* @return float
59			*/
60			public function evaluate($x)
61			{
62			return $this->k * $x + $this->n;
63			}
64			}
65

tmilos / cgi-calc

LinearFunction::fromTwoPoints() A last analyzed 2016-04-05 13:43 UTC

Complexity

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LinearFunction::fromTwoPoints() A
last analyzed 2016-04-05 13:43 UTC