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<?php
/**
* Class ResultPoint
*
* @created 17.01.2021
* @author ZXing Authors
* @author Smiley <smiley@chillerlan.net>
* @copyright 2021 Smiley
* @license Apache-2.0
*/
namespace chillerlan\QRCode\Detector;
use function abs;
/**
* Encapsulates a point of interest in an image containing a barcode. Typically, this
* would be the location of a finder pattern or the corner of the barcode, for example.
*
* @author Sean Owen
*/
abstract class ResultPoint{
protected float $x;
protected float $y;
protected float $estimatedModuleSize;
/**
*
*/
public function __construct(float $x, float $y, float $estimatedModuleSize){
$this->x = $x;
$this->y = $y;
$this->estimatedModuleSize = $estimatedModuleSize;
}
/**
*
*/
public function getX():float{
return $this->x;
}
/**
*
*/
public function getY():float{
return $this->y;
}
/**
*
*/
public function getEstimatedModuleSize():float{
return $this->estimatedModuleSize;
}
/**
* Determines if this finder pattern "about equals" a finder pattern at the stated
* position and size -- meaning, it is at nearly the same center with nearly the same size.
*/
public function aboutEquals(float $moduleSize, float $i, float $j):bool{
if(abs($i - $this->y) <= $moduleSize && abs($j - $this->x) <= $moduleSize){
$moduleSizeDiff = abs($moduleSize - $this->estimatedModuleSize);
return $moduleSizeDiff <= 1.0 || $moduleSizeDiff <= $this->estimatedModuleSize;
}
return false;
}
}
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