Merge pull request #44 from naitsirch/extend_rotate

Extended rotate transformation to support rotation about another point

Author: PhenX

src/Svg/Tag/AbstractTag.php

@@ -166,7 +166,14 @@ protected function applyTransform($attributes)
                         break;
 
                     case "rotate":
-                        $surface->rotate($t[1]);
+                        if (isset($t[2])) {
+                            $t[3] = isset($t[3]) ? $t[3] : 0;
+                            $surface->translate($t[2], $t[3]);
+                            $surface->rotate($t[1]);
+                            $surface->translate(-$t[2], -$t[3]);
+                        } else {
+                            $surface->rotate($t[1]);
+                        }
                         break;
 
                     case "skewX":