ayeo/temperature

Simple library to handle temperature scales

0.1.1 2014-12-19 01:37 UTC

Requires

• php: >=5.4.0

Requires (Dev)

• phpunit/phpunit: 4.0

MIT

• ayeo

README

Temperature

Simple library to handle temperature scales. Features:

• Display formatted tempteratue (e.g 100 °C)
• Simple convert beetwen different scales

Supported temperature scales

• Celsius (C)
• Kelvin (K)
• Farenheit (F)
• Rankine (R)
• Reaumur (Re)

Install using Composer

require: {
	"ayeo/temperature": "~0.1"
}

Basic usage

use Temperature\Factory\DefaultFactory as TemperatureFactory;

$factory = new TemperatureFactory();
$temperature = $factory->build(63, 'F');

$temperature; //63 °F
$temperature->convert('C'); //17.2222222222 °C
$temperature->convert('C')->setPrecision(2); //17.22 °C

Auto conversion

You can set Factory to autoconvert temperatures to given scale

use Temperature\Factory\DefaultFactory as TemperatureFactory;

$factory = new TemperatureFactory;
$factory->setAutoconvertTo('C');
$factory->getFormatter()->setPrecision(2);

$factory->build(100, 'F'); //37.78 °C

Custom formatter

As default formatter is build by your locale settings. You can adjust it to your needs.

use Temperature\Formatter\StandardFormatter;

$formatter = new StandardFormatter();
$formatter->setDecimalSeperator(",");
$formatter->setPrecision(2);
$formatter->setShowSymbolMode(false);

$factory->setFormatter($formatter);

$factory->build(10.50, 'C'); //10,50
$factory->build(100, 'K'); //100

You can write your own Formatter. I must implemetnts FormatterInterface.

Custom temperature scale

Assume you need new temperature scale. For purpose of this example let say C2 = 2 * Celsius

use \Temperature\Scales\Scale\AbstractScale;

class C2Scale extends AbstractScale
{
	const SYMBOL = "C2";

	/**
	 * @return float
	 */
	function getValueInCelsius()
	{
		return $this->value / 2;
	}

	/**
	 * @param $celsius
	 */
	function setValueInCelsius($celsius)
	{
		$this->value = $celsius * 2;
	}
}

$factory->getSupportedScales()->addSupportedType('C2', 'C2Scale');
$factory->build(100, 'C')->convert('C2'); //200 C2
$factory->build(50, 'K')->convert('C2'); //-446 C2

License

The MIT License (MIT). Please see the license file for more information.