/**
* Test unit conversion functions with various numbers
*/
public function testUnitConversions()
{
$values[] = 0;
// zero value
$values[] = rand(1, 100) / 100;
// fraction number
$values[] = rand(1, 100);
// integer
foreach ($values as $value) {
$result = Converter::cmToTwip($value);
$this->assertEquals($value / 2.54 * 1440, $result);
$result = Converter::cmToInch($value);
$this->assertEquals($value / 2.54, $result);
$result = Converter::cmToPixel($value);
$this->assertEquals($value / 2.54 * 96, $result);
$result = Converter::cmToPoint($value);
$this->assertEquals($value / 2.54 * 72, $result);
$result = Converter::cmToEmu($value);
$this->assertEquals(round($value / 2.54 * 96 * 9525), $result);
$result = Converter::inchToTwip($value);
$this->assertEquals($value * 1440, $result);
$result = Converter::inchToCm($value);
$this->assertEquals($value * 2.54, $result);
$result = Converter::inchToPixel($value);
$this->assertEquals($value * 96, $result);
$result = Converter::inchToPoint($value);
$this->assertEquals($value * 72, $result);
$result = Converter::inchToEmu($value);
$this->assertEquals(round($value * 96 * 9525), $result);
$result = Converter::pixelToTwip($value);
$this->assertEquals($value / 96 * 1440, $result);
$result = Converter::pixelToCm($value);
$this->assertEquals($value / 96 * 2.54, $result);
$result = Converter::pixelToPoint($value);
$this->assertEquals($value / 96 * 72, $result);
$result = Converter::pixelToEMU($value);
$this->assertEquals(round($value * 9525), $result);
$result = Converter::pointToTwip($value);
$this->assertEquals($value * 20, $result);
$result = Converter::pointToPixel($value);
$this->assertEquals($value / 72 * 96, $result);
$result = Converter::pointToEMU($value);
$this->assertEquals(round($value / 72 * 96 * 9525), $result);
$result = Converter::emuToPixel($value);
$this->assertEquals(round($value / 9525), $result);
$result = Converter::degreeToAngle($value);
$this->assertEquals((int) round($value * 60000), $result);
$result = Converter::angleToDegree($value);
$this->assertEquals(round($value / 60000), $result);
}
}
/**
* Calculate an (approximate) pixel size, based on a font points size
*
* @param int $fontSizeInPoints Font size (in points)
* @return int Font size (in pixels)
*/
public static function fontSizeToPixels($fontSizeInPoints = 12)
{
return Converter::pointToPixel($fontSizeInPoints);
}
