flex资料例子

<?php //Version 1.1: // Fixed error where pixels were being ignored. Was happening because // we were checking for if($c) instead of if($c!="") //Version 1.0: // Initial Release //Do not report errors error_reporting(0); // Get the width and height of chart $width = (int)$_POST['width']; $height = (int)$_POST['height']; //Background color of chart $bgcolor = $_POST['bgcolor']; //String of compressed data $cdata = $_POST['data']; //If width or height has not been specified, die if (!($width or $height)){ die("Width and height of chart has not been provided."); } // Split the data into rows using ; as separator $rows = explode(";", $cdata); // Create image $chart = imagecreatetruecolor($width, $height); // Detect the background color if (!$bgcolor){ $bgcolor = 0xFFFFFF; }else{ $bgcolor = intval($bgcolor, 16); } // Set the background color imagefill($chart, 0, 0, $bgcolor); // Iterate through all the rows for($i= 0; $i<count($rows); $i++){ // Parse all the pixels in this row $pixels = explode(",", $rows[$i]); // Horizontal pixel count $ri = 0; // Iterate through the pixels for($j=0; $j<count($pixels); $j++){ // Split the pixel into color and repeat value $thispix = explode("_", $pixels[$j]); // Reference to color $c = $thispix[0]; // Reference to repeat factor $r = (int)$thispix[1]; //If color is not empty (i.e., not background pixel) if ($c!=""){ if (strlen($c)<6){ //If the hexadecimal code is less than 6 characters, pad with 0 $c = str_pad($c, 6, '0', STR_PAD_LEFT); } //Convert value from HEX to RGB $rr = hexdec(substr($c, 0, 2)); $gg = hexdec(substr($c, 2, 2)); $bb = hexdec(substr($c, 4, 2)); // Allocate the color $ca = imagecolorallocate($chart, $rr, $gg, $bb); //Now, set the pixels for ($k=1; $k<=$r; $k++){ // Set the pixel imagesetpixel($chart, $ri, $i, $ca); //Increment horizontal row count $ri++; } }else{ //Just increment horizontal index $ri = $ri + $r; } } } // JPEG Header header('Content-type:image/jpeg'); // Force download box if not IE header('Content-Disposition: attachment; filename="FusionCharts.jpg"'); // JPEG Output with 100 quality imagejpeg($chart, "", 100); // Destroy chart image imagedestroy($chart); ?>