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<?php |
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/* |
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* This file is part of the STL package. |
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* |
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* (c) Grosan Flaviu Gheorghe <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace php3d\stl; |
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/** |
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* Class STLFacetNormal. Stores facet normal data. |
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* @package php3d\stl |
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*/ |
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class STLFacetNormal |
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{ |
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/** |
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* @var array |
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*/ |
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private $coordinatesArray; |
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/** |
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* @var STLVertex |
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*/ |
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private $vertex; |
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/** |
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* @return STLVertex |
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*/ |
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public function getVertex(): STLVertex |
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{ |
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return $this->vertex; |
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} |
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/** |
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* @param STLVertex $vertex |
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* @return STLFacetNormal |
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*/ |
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public function setVertex(STLVertex $vertex): STLFacetNormal |
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{ |
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$this->vertex = $vertex; |
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return $this; |
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} |
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/** |
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* @return array |
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*/ |
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public function getCoordinatesArray(): array |
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{ |
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return $this->coordinatesArray; |
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} |
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/** |
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* @param array $coordinatesArray |
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* @return STLFacetNormal |
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*/ |
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public function setCoordinatesArray(array $coordinatesArray): STLFacetNormal |
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{ |
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$this->coordinatesArray = $coordinatesArray; |
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return $this; |
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} |
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// Class should never be instantiated directly, as it emulates constructor overloading. |
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private function __construct() |
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{ |
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} |
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/** |
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* Class constructor from an STL facet normal string. |
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* |
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* Example facet normal string: |
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* |
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* facet normal 0.5651193 -0.07131607 0.8219211 |
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* outerloop |
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* vertex -71.74323 47.70205 4.666243 |
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* vertex -72.13071 47.70205 4.932664 |
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* vertex -72.1506 47.2273 4.905148 |
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* endloop |
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* endfacet |
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* |
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* @param string $stlFacetNormalString |
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* @return STLFacetNormal |
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*/ |
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public static function fromString(string $stlFacetNormalString) : STLFacetNormal |
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{ |
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$class = new self(); |
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preg_match("/facet normal +(\-*\d+\.*\d*e*\-*\+*\d*) +(\-*\d+\.*\d*e*\-*\+*\d*) +(\-*\d+\.*\d*e*\-*\+*\d*)/", |
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$stlFacetNormalString, $matches); |
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$class->setCoordinatesArray(array((float)$matches[1], (float)$matches[2], (float)$matches[3])); |
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$lines = explode("\n", $stlFacetNormalString); |
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$vertex = ""; |
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for ($i = 1; $i < count($lines) - 1; $i++) { |
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$vertex .= $lines[$i]; |
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} |
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$class->setVertex(STLVertex::fromString($vertex)); |
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return $class; |
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} |
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/** |
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* Class constructor from an STL facet normal array. |
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* |
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* Example facet normal array: |
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* array( |
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* "coordinates" => array(0.5651193, -0.07131607, 0.8219211), |
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* "vertex" => array( |
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* array( |
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* -71.74323, 47.70205, 4.666243 |
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* ), |
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* array( |
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* -72.13071, 47.70205, 4.932664 |
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* ), |
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* array( |
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* -72.1506, 47.2273, 4.905148 |
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* ) |
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* ) |
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* ) |
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* |
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* @param array $stlFacetNormalArray |
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* @return STLFacetNormal |
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*/ |
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public static function fromArray(array $stlFacetNormalArray) : STLFacetNormal |
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{ |
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$class = new self(); |
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$class->setCoordinatesArray($stlFacetNormalArray["coordinates"]); |
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$class->setVertex(STLVertex::fromArray($stlFacetNormalArray["vertex"])); |
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return $class; |
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} |
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/** |
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* Returns facet normal as array. |
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* |
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* @return array |
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*/ |
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public function toArray() : array |
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{ |
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return array( |
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"coordinates" => $this->getCoordinatesArray(), |
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"vertex" => $this->getVertex()->toArray() |
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); |
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} |
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/** |
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* Returns facet as string. |
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* |
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* @return string |
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*/ |
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public function toString() : string |
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{ |
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$string = "facet normal " . implode(" ", $this->getCoordinatesArray()) . "\n"; |
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$string .= $this->getVertex()->toString() . "\n"; |
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$string .= "endfacet"; |
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return $string; |
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} |
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} |
fgheorghe /
php3d-stl
