mirror of
https://github.com/Chouchen/svgToImage.git
synced 2020-02-03 22:08:42 +01:00
ajout de commentaires pour y voir plus clair
tentative d'ajout de courbes de Bézier tentative d'amélioration de rotation (il y a tjs un décalage)
This commit is contained in:
Shikiryu
289
svgtoimage.php
289
svgtoimage.php
@@ -2,33 +2,35 @@
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// TODO
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// ajouter header thanks to http://fr.php.net/manual/fr/function.image-type-to-mime-type.php
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// prendre en compte l'opacité grâce à imagecolorallocatealpha ?
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// conversion des couleurs "black" , "blue", etc en #000 etc.
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// stroke-width pour tous \o/
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// pour les rectangles avec point ou tiret http://fr.php.net/manual/fr/function.imagesetstyle.php
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// ajout de title
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include 'log.php';
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class SVGTOIMAGE{
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protected $_svg;
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protected $_svgXML;
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protected $_image;
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protected $_format;
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protected $_log;
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protected $_x;
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protected $_y;
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protected $_width;
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protected $_height;
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protected $_showDesc = false;
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protected $_desc;
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private $transparentColor = array(0,0,255);
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public $_debug = true;
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//const TIRET = array($red, $red, $red, $red, $red, IMG_COLOR_TRANSPARENT, IMG_COLOR_TRANSPARENT, IMG_COLOR_TRANSPARENT, IMG_COLOR_TRANSPARENT, IMG_COLOR_TRANSPARENT);
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/* array of color names => hex color
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because some svg creator uses them
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*/
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private $colors = array(
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'black' => '#000000',
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'red' => '#FF0000',
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'white' => '#FFFFFF',
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'turquoise' => '#00FFFF',
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'grey' => '#CCCCCC',
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'light grey' => '#C0C0C0',
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'light blue' => '#0000FF',
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'dark grey' => '#808080',
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@@ -45,27 +47,46 @@ class SVGTOIMAGE{
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'grass green' => '#408080',
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);
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public function __construct($svg, $format = 'png'){
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/*
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* constructor
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* parse the svg with simplexml
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*/
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public function __construct($svg){
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if($this->_debug) $this->_log = new Log('log.dat');
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$this->_svg = $svg;
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if($this->_debug) $this->_log->message('Ouverture du fichier contentant : '.$svg);
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$this->_svgXML = simplexml_load_string($this->_svg);
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$this->_format = $format;
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$this->_svgXML = simplexml_load_string($svg);
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}
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/*
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* Construct with a file
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* @param : string path to the file
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* @return : instance of this class
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*/
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public static function load($file){
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$svg = file_get_contents($file);
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return new SVGTOIMAGE($svg);
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}
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/*
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* Construct with a string
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* @param : string <svg>...</svg>
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* @return : instance of this class
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*/
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public static function parse($xml){
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return new SVGTOIMAGE($xml);
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}
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/*
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* Destroy the GD Image when finished
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*/
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public function __destruct(){
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imagedestroy($this->_image);
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}
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/*
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* setter - option : show the description from the svg into the image if present
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* @param boolean
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*/
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public function setShowDesc($showDesc = true){
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if(is_bool($showDesc)){
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if($this->_debug) $this->_log->message('Passage de showDesc en '.$showDesc);
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@@ -75,6 +96,10 @@ class SVGTOIMAGE{
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}
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}
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/*
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* setter - option : origin of the final image from the svg (default : 0)
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* @param int
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*/
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public function setX($x){
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if(is_int($x)){
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if($this->_debug) $this->_log->message('Passage de x en '.$x);
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@@ -84,6 +109,10 @@ class SVGTOIMAGE{
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}
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}
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/*
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* setter - option : origin of the final image from the svg (default : 0)
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* @param int
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*/
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public function setY($y){
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if(is_int($y)){
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if($this->_debug) $this->_log->message('Passage de y en '.$y);
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@@ -93,6 +122,10 @@ class SVGTOIMAGE{
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}
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}
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/*
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* setter - option : width of the final image (default : svg width)
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* @param int
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*/
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public function setWidth($width){
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if(is_int($width)){
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if($this->_debug) $this->_log->message('Passage de width en '.$width);
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@@ -102,6 +135,10 @@ class SVGTOIMAGE{
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}
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}
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/*
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* setter - option : height of the final image (default : svg height)
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* @param int
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*/
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public function setHeight($height){
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if(is_int($height)){
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if($this->_debug) $this->_log->message('Passage de height en '.$height);
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@@ -120,15 +157,24 @@ class SVGTOIMAGE{
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return $imageSize;
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}
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/*
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* @return int final image width
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*/
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private function _getImageWidth(){
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return isset($this->_width) ? $this->_width : $this->_svgXML->attributes()->width;
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}
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/*
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* @return int final image height
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*/
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private function _getImageHeight(){
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return isset($this->_height) ? $this->_height : $this->_svgXML->attributes()->height;
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}
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/*
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* @param string Color code (ie: #CCC , #FE4323, etc...)
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* @return array with R | G | B
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*/
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private function _parseColor($colorCode){
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if(strlen($colorCode) == 7){
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if($this->_debug) $this->_log->message('Parse Color '.$colorCode);
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@@ -150,8 +196,13 @@ class SVGTOIMAGE{
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return array(0,0,0);
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}
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/*
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* Allocate color to the final image thanks to _parseColor (check if the color isn't spelled directly 'black')
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* @param string color code
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* @return imageallocate on the image
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*/
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private function _allocateColor($color){
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if($color != '' && array_key_exists($color, $this->colors)){
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if($color != '' && array_key_exists(strtolower($color), $this->colors)){
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$arrayColor = $this->_parseColor($this->colors[$color]);
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}else{
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$arrayColor = $this->_parseColor($color);
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@@ -159,12 +210,18 @@ class SVGTOIMAGE{
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return imagecolorallocate( $this->_image, $arrayColor[0], $arrayColor[1], $arrayColor[2] );
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}
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/*
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* add the given image from svg to the final image
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* @param simpleXMLElement
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* @return imagecopy
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*/
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private function _parseImage($imageNode){
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$x = 0;
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$y = 0;
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$width = 0;
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$height = 0;
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$href = '';
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$transform = '';
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$r = 0;
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foreach($imageNode->attributes() as $name => $value){
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switch($name){
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@@ -174,10 +231,23 @@ class SVGTOIMAGE{
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case 'height': $height = $value; break;
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case 'href':
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case 'xlink:href':$href = $value; break;
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case 'r' : $r = $value; break;
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//case 'r' : $r = $value; break; // no !
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case 'transform': $transform = $value;
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case 'style' : if(strripos($value, 'display: none') || strripos($value, 'display:none')) return; break;
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}
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}
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if($transform != ''){
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$transforms = split('[()]', $transform);
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$nb = count($transforms);
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for($i = 0; $i < $nb; $i++){
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// rotation
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if($transforms[$i] == 'rotate'){
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$rotinfo = $transforms[$i+1];
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$rotinfo = explode(' ', $rotinfo);
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$r = $rotinfo[0];
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}
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}
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}
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if($width == 0 || $height == 0 || $href == '')
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return;
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if($this->_debug) $this->_log->message('Image - x : '.$x.' - y : '.$y.' - largeur : '.$width.' - longueur : '.$height.' - url : '.$href.' - angle : '.$r);
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@@ -208,15 +278,27 @@ class SVGTOIMAGE{
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imagecolortransparent($newImage, $blue);
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}
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imagecopy($this->_image,$newImage,$x,$y,0,0,imagesx($newImage) , imagesy($newImage));
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imagecopy($this->_image,$newImage,$x,$y,0,0, $width , $height);
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//imagecopy($this->_image,$newImage,$x,$y,0,0,imagesx($newImage) , imagesy($newImage));
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}
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/*
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* Check if the given SVG xml is W3C valid
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* DEPRECATED
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* @param string <svg>...</svg>
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* @return boolean
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*/
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private function _pathIsW3C($path){
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if(strripos($path, ','))
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return true;
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return false;
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}
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/*
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* small function to find int into a string - works like java parseint
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* @param string containing numbers
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* @return int
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*/
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private function _parseInt($string){
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if(preg_match('/(\d+)/', $string, $array)) {
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return $array[1];
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@@ -225,6 +307,12 @@ class SVGTOIMAGE{
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}
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}
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/*
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* add a line to the final image
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* @param $x1, $y1, $x2, $y2 int position of segment
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* @param imagecolorallocate color (via _allocatecolor !)
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* @return imageline
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*/
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private function _drawLine($x1, $y1, $x2, $y2, $color){
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if(!imageline( $this->_image , $x1, $y1, $x2, $y2, $color )){
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if($this->_debug) $this->_log->error('Chemin erroné : '.$x1.' - '.$y1.' - '.$x2.' - '.$y2);
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@@ -233,9 +321,12 @@ class SVGTOIMAGE{
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}
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}
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/*
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* add path/lineS/polyline whatever you name it.
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* @param simpleXMLElement
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* @return lines on the final image via _drawLine
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*/
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private function _parsePath($pathNode){
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// <path d="M50,50 A30,30 0 0,1 35,20 L100,100 M110,110 L100,0" style="stroke:#660000; fill:none;"/>
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//<path d="M20 150 L150 350 Z" />
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// imagesetbrush
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// imagesetstyle (pour dotted, dashed etc)
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$path = '';
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@@ -244,14 +335,14 @@ class SVGTOIMAGE{
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$stroke = '';
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foreach($pathNode->attributes() as $name=>$value){
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switch($name){
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case 'd': $path = $value; break;
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case 'd': case 'points': $path = $value; break;
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case 'stroke': $stroke = $value; break;
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case 'fill': $fill = ($value == 'none') ? '' : $value; break;
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case 'stroke-width' : $strokeWidth = $value; break;
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case 'style' : if(strripos($value, 'display: none') || strripos($value, 'display:none')) return; break;
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}
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}
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if(substr($path, 0,1) != 'M'){
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if(substr($path, 0,1) != 'M' && !is_numeric(substr($path, 0,1))){
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if($this->_debug) $this->_log->error('Mauvais path rencontré : '.$path);
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return;
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}
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@@ -302,6 +393,40 @@ class SVGTOIMAGE{
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$lastOpe = 'V';
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$i++;
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}elseif(substr($pathArray[$i], 0, 1) == 'C'){
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$control1x = $this->_parseInt($pathArray[$i]);
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$control1y = $this->_parseInt($pathArray[$i+1]);
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$control2x = $this->_parseInt($pathArray[$i+2]);
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$control2y = $this->_parseInt($pathArray[$i+3]);
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$newX = $this->_parseInt($pathArray[$i+4]);
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$newY = $this->_parseInt($pathArray[$i+5]);
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// Algorithme de http://www.dreamstube.com/post/Bezier-Curves-In-PHP!.aspx ne fonctionne pas !
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$cx=3*($control1x-$lastX);
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$bx=3*($control2x-$control1x)-$cx;
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$ax=$newX-$lastX-$cx-$bx;
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$cy=3*($control1y-$lastY);
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$by=3*($control2y-$control1y)-$cy;
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$ay=$newY-$lastY-$cy-$by;
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if($this->_debug) $this->_log->message('ax : '.$ax.', ay : '.$ay);
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$function_x='('.$ax.')*$t*$t*$t+('.$bx.')*$t*$t+('.$cx.')*$t+'.$lastX;
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$function_y='('.$ay.')*$t*$t*$t+('.$by.')*$t*$t+('.$cy.')*$t+'.$lastY;
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$function_z=2;
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$j=0;
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for($t=0; $t<1; $t+=.01)
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{
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eval('$x_points[$j]=1*'.$function_x.';');
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eval('$y_points[$j]=1*'.$function_y.';');
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eval('$z_points[$j]=1*'.$function_z.';');
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if($this->_debug) $this->_log->message('cx : '.$x_points[$j].', cy : '.$y_points[$j]*(-1).' d: '.$z_points[$j]);
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imagearc($this->_image, $x_points[$j]+$this->_getImageWidth()/2, ($y_points[$j]*(-1))+$this->_getImageHeight()/2, $z_points[$j], $z_points[$j], 0, 360, $colorStroke);
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$j++;
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}
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$lastX = $newX;
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$lastY = $newY;
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$i=$i+6;
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}elseif(is_numeric(substr($pathArray[$i], 0, 1))){
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switch($lastOpe){
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case 'L':
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@@ -310,6 +435,7 @@ class SVGTOIMAGE{
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$this->_drawLine($lastX , $lastY , $newX , $newY , $colorStroke);
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$lastX = $newX;
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$lastY = $newY;
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$i=$i+2;
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break;
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case 'H':
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$newX = $this->_parseInt($pathArray[$i]);
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@@ -327,9 +453,12 @@ class SVGTOIMAGE{
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if($this->_debug) $this->_log->error('2 bouclages dans une boucle');
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$i++;
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break;
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default :
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default : //polyline
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if($this->_debug) $this->_log->error('last opé inconnue '.$lastOpe);
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$i++;
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$lastX = $this->_parseInt($pathArray[$i]);
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$lastY = $this->_parseInt($pathArray[$i+1]);
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$lastOpe = 'L';
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$i=$i+2;
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break;
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}
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@@ -338,7 +467,7 @@ class SVGTOIMAGE{
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$lastOpe = 'Z'; //utile?
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$i++;
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}else
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$i++; // au cas où.
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$i++; // au cas où pour éviter une boucle infinie.
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if($this->_debug) $this->_log->message('counter :'.$i);
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}
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imagecolordeallocate( $this->_image, $colorStroke);
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@@ -346,6 +475,11 @@ class SVGTOIMAGE{
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imagesetthickness ( $this->_image , 1 );
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}
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/*
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* add a circle in the final image
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* @param SimpleXMLElement
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* @return
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*/
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private function _parseCircle($circleNode){
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$x = 0;
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$y = 0;
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@@ -386,8 +520,12 @@ class SVGTOIMAGE{
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imagesetthickness ( $this->_image , 1 );
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}
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/*
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* add a rectangle to the final image
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* @param simpleXMLElement
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* @return a nice rectangle !
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*/
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private function _parseRectangle($rectNode){
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//<rect x="168" y="275" width="52" height="70" r="0" rx="0" ry="0" fill="none" stroke="#000" stroke-dasharray="8,3" transform="rotate(21.91207728 194 310)" style="opacity: 1; display: none; " opacity="1"></rect>
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$x = 0;
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$y = 0;
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$width = 0;
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@@ -398,7 +536,6 @@ class SVGTOIMAGE{
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$strokeWidth = 1;
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foreach($rectNode->attributes() as $name => $value){
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switch($name){
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// imagesetthickness ( resource $image , int $thickness )
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// imagesetstyle (pour dotted, dashed etc)
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case 'x': $x = $value; break;
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case 'y': $y = $value; break;
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@@ -419,7 +556,7 @@ class SVGTOIMAGE{
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if($this->_debug && !$thickness) $this->_log->error('Erreur dans la mise en place de l\'épaisseur du trait');
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if($this->_debug) $this->_log->message('Rectangle - x : '.$x.' - y : '.$y.' - width : '.$width.' - height : '.$height.' - fill : '.$colorFill[0].'-'.$colorFill[1].'-'.$colorFill[2].' - stroke : '.$colorStroke[0].'-'.$colorStroke[1].'-'.$colorStroke[2]);
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if($fill == ''){
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imagerectangle($this->_image , $x , $y , $x+$width , $y+$height, $colorStroke); //resource $image , int $x1 , int $y1 , int $x2 , int $y2 , int $color
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imagerectangle($this->_image , $x , $y , $x+$width , $y+$height, $colorStroke);
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}else{
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imagefilledrectangle ($this->_image , $x , $y , $x+$width , $y+$height, $colorFill );
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}
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@@ -428,32 +565,110 @@ class SVGTOIMAGE{
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imagesetthickness ( $this->_image , 1 );
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}
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||||
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/*
|
||||
* add a polygon in the final image
|
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* @param simpleXMLElement
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* @return po-po-po-polygon !
|
||||
*/
|
||||
private function _parsePolygon($polyNode){
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$points = '';
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$fill = '';
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||||
$stroke = '';
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||||
$strokeWidth = 1;
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foreach($polyNode->attributes() as $name => $value){
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switch($name){
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// imagesetstyle (pour dotted, dashed etc)
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case 'points' : $points = $value; break;
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||||
case 'fill': $fill = ($value == 'none') ? '' : $value; break;
|
||||
case 'stroke': $stroke = $value; break;
|
||||
case 'stroke-width' : $strokeWidth = $value; break;
|
||||
case 'style' : if(strripos($value, 'display: none') || strripos($value, 'display:none')) return; break;
|
||||
}
|
||||
}
|
||||
if($points == '')
|
||||
return;
|
||||
$pointArray = split('[ ,]', $points);
|
||||
$colorStroke = $this->_allocateColor((string)$stroke);
|
||||
$colorFill = $this->_allocateColor((string)$fill);
|
||||
$thickness = imagesetthickness( $this->_image , (int)$strokeWidth );
|
||||
if($this->_debug && !$thickness) $this->_log->error('Erreur dans la mise en place de l\'épaisseur du trait');
|
||||
|
||||
if($fill == ''){
|
||||
imagepolygon ( $this->_image , $pointArray , count($pointArray)/2 , $colorStroke );
|
||||
}else{
|
||||
imagefilledpolygon ($this->_image , $pointArray , count($pointArray)/2 , $colorFill );
|
||||
}
|
||||
imagecolordeallocate($this->_image,$colorStroke);
|
||||
imagecolordeallocate($this->_image,$colorFill);
|
||||
imagesetthickness ( $this->_image , 1 );
|
||||
}
|
||||
|
||||
/*
|
||||
* add the description text in the final image
|
||||
* @param string the description
|
||||
* @return boolean
|
||||
*/
|
||||
private function _parseDescription($desc){
|
||||
if($this->_debug) $this->_log->message('Ajout de la description : '.$desc);
|
||||
return imagestring ( $this->_image , 2, 10, $this->_getImageHeight()-20, $desc , imagecolorallocate($this->_image, 255, 255, 255));
|
||||
}
|
||||
|
||||
/*
|
||||
* ignore group for the moment
|
||||
* acts like ungrouped
|
||||
*/
|
||||
private function _parseGroup($groupNode){
|
||||
foreach($groupNode->children() as $element){
|
||||
$this->_chooseParse($element);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* select what to parse
|
||||
* @param simpleXMLElement
|
||||
* @return the selected function
|
||||
*/
|
||||
private function _chooseParse($element){
|
||||
if($element->getName() == 'image')
|
||||
$this->_parseImage($element);
|
||||
if($element->getName() == 'circle')
|
||||
$this->_parseCircle($element);
|
||||
if($element->getName() == 'rect')
|
||||
$this->_parseRectangle($element);
|
||||
if($element->getName() == 'path')
|
||||
$this->_parsePath($element);
|
||||
if($element->getName() == 'polygon')
|
||||
$this->_parsePolygon($element);
|
||||
if($element->getName() == 'polyline')
|
||||
$this->_parsePath($element);
|
||||
if($element->getName() == 'title')
|
||||
$this->_parseTitle($element);
|
||||
if($element->getName() == 'desc' && $this->_showDesc)
|
||||
$this->_desc = $element;
|
||||
}
|
||||
|
||||
public function toImage(){
|
||||
//$test = Imagick::__construct('http://labs.shikiryu.com/experimental-cut/images/pieces/2.png');
|
||||
/*
|
||||
* parse everything, main function
|
||||
* @param string format of the ouput 'png' 'gif' jpg'
|
||||
* @param string path where you want to save the file (with the final name), null will just show the image but not saved on server
|
||||
* @return the image
|
||||
*/
|
||||
public function toImage($format = 'png', $path = null){
|
||||
$writeDesc = null;
|
||||
$this->_image = imagecreatetruecolor($this->_getImageWidth(), $this->_getImageHeight());
|
||||
imagealphablending($this->_image, true);
|
||||
//imageantialias($this->_image, true); // On ne peut pas gérer l'épaisseur des traits si l'antialiasing est activé... lol ?
|
||||
foreach($this->_svgXML->children() as $element){
|
||||
if($element->getName() == 'image')
|
||||
$this->_parseImage($element);
|
||||
if($element->getName() == 'circle')
|
||||
$this->_parseCircle($element);
|
||||
if($element->getName() == 'rect')
|
||||
$this->_parseRectangle($element);
|
||||
if($element->getName() == 'path')
|
||||
$this->_parsePath($element);
|
||||
if($element->getName() == 'desc' && $this->_showDesc)
|
||||
$writeDesc = $element;
|
||||
$this->_chooseParse($element);
|
||||
}
|
||||
if($writeDesc) $this->_parseDescription($writeDesc);
|
||||
if($this->_showDesc && $this->_desc != null) $this->_parseDescription($this->_desc);
|
||||
//imagefilter ( $this->_image , IMG_FILTER_SMOOTH, 6);
|
||||
return imagepng($this->_image);
|
||||
switch($format){
|
||||
case 'png' :
|
||||
default :
|
||||
//header('Content-type: image/png');
|
||||
return imagepng($this->_image, $path);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
Reference in New Issue
Block a user