*/ class jSignature_Tools_SVG { /** * This is a simple, points-to-lines (not curves) renderer. * Keeping it around so we can activate it from time to time and see * if smoothing logic is off much. * @public * @function * @param $stroke {Array} Hash representing a single stroke, with two properties * ('x' => array(), 'y' => array()) where 'array()' is an array of * coordinates for that axis. * @returns {String} Like so 'M 53 7 l 1 2 3 4 -5 -6 5 -6' which is in format of SVG's Path.d argument. */ private function addstroke($stroke, $shiftx, $shifty){ $lastx = $stroke['x'][0]; $lasty = $stroke['y'][0]; $i; $l = sizeof( $stroke['x'] ); $answer = array('M', round( $lastx - $shiftx, 2) , round( $lasty - $shifty, 2), 'l'); if ($l == 1){ // meaning this was just a DOT, not a stroke. // instead of creating a circle, we just create a short line "up and to the right" :) array_push($answer, 1); array_push($answer, -1); } else { for($i = 1; $i < $l; $i++){ array_push( $answer, $stroke['x'][$i] - $lastx); array_push( $answer, $stroke['y'][$i] - $lasty); $lastx = $stroke['x'][$i]; $lasty = $stroke['y'][$i]; } } return implode(' ', $answer); } public function NativeToSVG($data){ $answer = array( '' , '' ); $i; $l = sizeof( $data ); $stroke; $xlimits = array(); $ylimits = array(); $sizex = 0; $sizey = 0; $shiftx = 0; $shifty = 0; $minx; $maxx; $miny; $maxy; $padding = 1; if($l !== 0){ for($i = 0; $i < $l; $i++){ $stroke = $data[$i]; $xlimits = array_merge($xlimits, $stroke['x']); $ylimits = array_merge($ylimits, $stroke['y']); } $minx = min($xlimits) - $padding; $maxx = max($xlimits) + $padding; $miny = min($ylimits) - $padding; $maxy = max($ylimits) + $padding; $shiftx = $minx < 0 ? 0 : $minx; $shifty = $miny < 0 ? 0 : $miny; $sizex = $maxx - $minx; $sizey = $maxy - $miny; } array_push( $answer, ''); return implode('', $answer); } } ?>