PHP ImagickDraw::setFontWeight方法代码示例

 /**
  * Creates image with text
  * @param int $sizeX
  * @param int $sizeY
  * @param string $text
  * @param string $generator
  * @return \Imagick
  */
 public function mkCapcha($sizeX, $sizeY, $text, $generator = self::METHOD_DEFAULT)
 {
     // init image
     $image = new \Imagick();
     $image->newImage($sizeX, $sizeY, new \ImagickPixel('white'));
     $image->setImageFormat('png');
     switch ($generator) {
         case self::METHOD_GRAYNOISE:
             $draw = new \ImagickDraw();
             $draw->setFontSize(35);
             $draw->setFontWeight(900);
             $draw->setGravity(\imagick::GRAVITY_CENTER);
             $image->addNoiseImage(\imagick::NOISE_LAPLACIAN);
             $image->annotateImage($draw, 0, 0, 0, $text);
             $image->charcoalImage(2, 1.5);
             $image->addNoiseImage(\imagick::NOISE_LAPLACIAN);
             $image->gaussianBlurImage(1, 1);
             break;
         case self::METHOD_GRAYBLUR:
             $draw = new \ImagickDraw();
             $order = [];
             for ($i = 0; $i < strlen($text); $i++) {
                 $order[$i] = $i;
             }
             shuffle($order);
             for ($j = 0; $j < 2; $j++) {
                 shuffle($order);
                 $image->gaussianBlurImage(15, 3);
                 for ($n = 0; $n < strlen($text); $n++) {
                     $i = $order[$n];
                     $draw->setFont(__DIR__ . '/Capcha/DejaVuSans.ttf');
                     $draw->setFontSize($j ? rand($sizeY * 3 / 5, $sizeY * 5 / 6) : rand($sizeY * 4 / 6, $sizeY * 5 / 6));
                     $draw->setFontWeight(rand(100, 900));
                     $draw->setGravity(\imagick::GRAVITY_CENTER);
                     $image->annotateImage($draw, ($i - strlen($text) / 2) * $sizeX / (strlen($text) + 2.3), 0, rand(-25, 25), $text[$i]);
                     $image->gaussianBlurImage(1, 1);
                 }
             }
             break;
     }
     return $image;
 }

<?php

$draw = new ImagickDraw();
$font_path = __DIR__ . '/php_imagick_tests/anonymous_pro_minus.ttf';
$draw->setFont($font_path);
var_dump($draw->getFont() === $font_path);
try {
    $draw->setFont(">_<");
} catch (Exception $ex) {
    var_dump("setFont");
}
$draw->setFontSize(12);
var_dump($draw->getFontSize());
$draw->setFontStretch(Imagick::STRETCH_SEMIEXPANDED);
var_dump($draw->getFontStretch() === Imagick::STRETCH_SEMIEXPANDED);
$draw->setFontStyle(Imagick::STYLE_ITALIC);
var_dump($draw->getFontStyle() === Imagick::STYLE_ITALIC);
$draw->setFontWeight(500);
var_dump($draw->getFontWeight());
try {
    $draw->setFontWeight(1000);
} catch (ImagickDrawException $ex) {
    var_dump($ex->getMessage());
}

function exWrapper($a)
{
    $line_1 = $a['line_1'];
    $line_2 = $a['line_2'];
    $line_3 = $a['line_3'];
    $line_4 = $a['line_4'];
    $line_1_font = $a['line_1_font'];
    $line_2_font = $a['line_2_font'];
    $line_3_font = $a['line_3_font'];
    $line_4_font = $a['line_4_font'];
    $line_1_size = $a['line_1_size'];
    $line_2_size = $a['line_2_size'];
    $line_3_size = $a['line_3_size'];
    $line_4_size = $a['line_4_size'];
    $line_1_x = $a['line_1_x'];
    $line_2_x = $a['line_2_x'];
    $line_3_x = $a['line_3_x'];
    $line_4_x = $a['line_4_x'];
    $line_1_y = $a['line_1_y'];
    $line_2_y = $a['line_2_y'];
    $line_3_y = $a['line_3_y'];
    $line_4_y = $a['line_4_y'];
    $red = $a['red'];
    $green = $a['green'];
    $blue = $a['blue'];
    $red_text = $a['red_text'];
    $green_text = $a['green_text'];
    $blue_text = $a['blue_text'];
    $base = new \Imagick('/var/www/mch' . $a['base']);
    $draw = new \ImagickDraw();
    $textColor = "rgb({$red_text}, {$green_text}, {$blue_text})";
    if (isset($a['layer_top']) && $a['layer_top'] != "") {
        $layout = new \Imagick();
        $layout_x = $a['layer_top_x'];
        $layout_y = $a['layer_top_y'];
        if ($a['image_uploaded'] != true) {
            $tempimg = '/var/www/mch/' . $a['layer_top'];
            $im = imagecreatefromstring(base64_decode(transparent($tempimg)));
            imagepng($im, "test_layer.png");
            $tempimg_path = "test_layer.png";
            $blob = base64_decode(convert($tempimg_path, $red, $green, $blue));
            $layout->readImageBlob($blob);
            $layout->setImageFormat('png');
        } else {
            $layout->readImage($img);
        }
    }
    if ($line_1 != "" || $line_2 != "" || $line_3 != "" || $line_4 != "") {
        // $line_1_x = $line_1_x + 25; $line_2_x = $line_2_x + 25; $line_3_x = $line_3_x + 25; $line_4_x = $line_4_x + 25;
        $line_1_x = $line_1_x < 0 ? 0 : $line_1_x;
        //$line_1_x = ($line_1_x > 198 ? 198: $line_1_x);
        $line_2_x = $line_2_x < 0 ? 0 : $line_2_x;
        //$line_2_x =  ($line_2_x > 198 ? 198: $line_2_x);
        $line_3_x = $line_3_x < 0 ? 0 : $line_3_x;
        //$line_3_x =  ($line_3_x > 198 ? 198: $line_3_x);
        $line_4_x = $line_4_x < 0 ? 0 : $line_4_x;
        //$line_4_x = ($line_4_x > 198 ? 198: $line_4_x);
        // $temp = new Imagick();
        // $temp->newImage($w, $h);
        $draw->setFont($line_1_font);
        $draw->setFontSize($line_1_size);
        $draw->setFontWeight(700);
        $draw->setFillColor($textColor);
        $base->annotateImage($draw, $line_1_x, $line_1_y, 0, $line_1);
        $draw->setFont($line_2_font);
        $draw->setFontSize($line_2_size);
        $draw->setFontWeight(700);
        $draw->setFillColor($textColor);
        $base->annotateImage($draw, $line_2_x, $line_2_y, 0, $line_2);
        $draw->setFont($line_3_font);
        $draw->setFontSize($line_3_size);
        $draw->setFontWeight(700);
        $draw->setFillColor($textColor);
        $base->annotateImage($draw, $line_3_x, $line_3_y, 0, $line_3);
        $draw->setFont($line_4_font);
        $draw->setFontSize($line_4_size);
        $draw->setFontWeight(700);
        $draw->setFillColor($textColor);
        $base->annotateImage($draw, $line_4_x, $line_4_y, 0, $line_4);
    }
    echo "line 1x : " . $line_1_x . " line 2x : " . $line_2_x . " line 3x : " . $line_3_x . " line 4x: " . $line_4_x;
    // $img = '/var/www/mch'.$a['layout'];
    // $size = getimagesize($a['img']);
    // $h = $size[1];
    // $w = $size[0];
    $h = 100;
    $w = 100;
    $x = $layout_x;
    $y = $layout_y;
    // echo $x." ";
    // echo $y;
    if ($x < 134) {
        $x = 134;
    }
    if ($x > 186) {
        $x = 186;
    }
    if ($y < 27) {
        $y = 27;
    }
//.........这里部分代码省略.........

        $messageWordwrap = 17;
        break;
    case 30:
        $messageWordwrap = 16;
        break;
}
$fixedCardMessage = wordwrap($cardMessage, $messageWordwrap, "\n");
$b->annotateImage($draw2, 340, 150, 0, $fixedCardMessage);
/* Draw Message */
$draw3 = new ImagickDraw();
/* Text Color */
$draw3->setFillColor($signatureColor);
/* Font properties */
$draw3->setFont($signatureFont);
$draw3->setFontSize($signatureSize);
$draw3->setFontWeight(400);
// change wordwrap depending on font size
switch ($signatureSize) {
    case 20:
        $signatureWordwrap = 24;
        break;
    case 22:
        $signatureWordwrap = 23;
        break;
    case 24:
        $signatureWordwrap = 21;
        break;
    case 26:
        $signatureWordwrap = 19;
        break;
    case 28:

function setFontWeight($fillColor, $strokeColor, $backgroundColor)
{
    $draw = new \ImagickDraw();
    $draw->setStrokeColor($strokeColor);
    $draw->setFillColor($fillColor);
    $draw->setStrokeWidth(1);
    $draw->setFontSize(36);
    $draw->setFontWeight(100);
    $draw->annotation(50, 50, "Lorem Ipsum!");
    $draw->setFontWeight(200);
    $draw->annotation(50, 100, "Lorem Ipsum!");
    $draw->setFontWeight(400);
    $draw->annotation(50, 150, "Lorem Ipsum!");
    $draw->setFontWeight(800);
    $draw->annotation(50, 200, "Lorem Ipsum!");
    $imagick = new \Imagick();
    $imagick->newImage(500, 500, $backgroundColor);
    $imagick->setImageFormat("png");
    $imagick->drawImage($draw);
    header("Content-Type: image/png");
    echo $imagick->getImageBlob();
}

function kingBar($a)
{
    $line_1 = $a['line_1'];
    $line_2 = $a['line_2'];
    $line_3 = $a['line_3'];
    $line_4 = $a['line_4'];
    $line_1_font = $a['line_1_font'];
    $line_2_font = $a['line_2_font'];
    $line_3_font = $a['line_3_font'];
    $line_4_font = $a['line_4_font'];
    $line_1_size = $a['line_1_size'];
    $line_2_size = $a['line_2_size'];
    $line_3_size = $a['line_3_size'];
    $line_4_size = $a['line_4_size'];
    $line_1_x = $a['line_1_x'];
    $line_2_x = $a['line_2_x'];
    $line_3_x = $a['line_3_x'];
    $line_4_x = $a['line_4_x'];
    $line_1_y = $a['line_1_y'];
    $line_2_y = $a['line_2_y'];
    $line_3_y = $a['line_3_y'];
    $line_4_y = $a['line_4_y'];
    $base = new \Imagick('/var/www/mch' . $a['base']);
    $draw = new \ImagickDraw();
    $fillColor = $base->getImagePixelColor(0, 0);
    $textColor = "rgb(126, 64, 17)";
    if (isset($a['layer_top']) && $a['layer_top'] != "") {
        $layout = new \Imagick();
        $layout_x = $a['layer_top_x'];
        $layout_y = $a['layer_top_y'];
        if ($a['image_uploaded'] != true) {
            $img = '/var/www/mch/' . $a['layer_top'];
            $blob = base64_decode(convert($img));
            $layout->readImageBlob($blob);
            $layout->setImageFormat('png');
        } else {
            $layout->readImage($img);
        }
    }
    if ($line_1 != "" || $line_2 != "" || $line_3 != "" || $line_4 != "") {
        // $line_1_x = $line_1_x + 25; $line_2_x = $line_2_x + 25; $line_3_x = $line_3_x + 25; $line_4_x = $line_4_x + 25;
        $line_1_x = $line_1_x < 70 ? 70 : $line_1_x;
        $line_1_x = $line_1_x > 196 ? 197 + 20 : $line_1_x;
        $line_2_x = $line_2_x < 70 ? 70 : $line_2_x;
        $line_2_x = $line_2_x > 196 ? 197 + 20 : $line_2_x;
        $line_3_x = $line_3_x < 70 ? 70 : $line_3_x;
        $line_3_x = $line_3_x > 196 ? 197 + 20 : $line_3_x;
        $line_4_x = $line_4_x < 70 ? 70 : $line_4_x;
        $line_4_x = $line_4_x > 196 ? 197 + 20 : $line_4_x;
        $size = getimagesize('/var/www/mch' . $a['base']);
        $w = $size[0];
        $h = $size[1];
        $tras = new Imagick();
        $mask = new Imagick();
        $tras->newImage($w, $h, new ImagickPixel('grey30'));
        $mask->newImage($w, $h, new ImagickPixel('black'));
        // $tras->paintTransparentImage(new ImagickPixel('black'), 0.4, 0);
        $draw->setFont($line_1_font);
        $draw->setFontSize($line_1_size);
        $draw->setFontWeight(700);
        $draw->setFillColor($textColor);
        $tras->annotateImage($draw, $line_1_x - 1, $line_1_y - 1, 0, $line_1);
        $draw->setFillColor('white');
        $mask->annotateImage($draw, $line_1_x, $line_1_y, 0, $line_1);
        $mask->annotateImage($draw, $line_1_x - 1, $line_1_y - 1, 0, $line_1);
        $draw->setFillColor('black');
        $mask->annotateImage($draw, $line_1_x - 2, $line_1_y - 2, 0, $line_1);
        $draw->setFont($line_2_font);
        $draw->setFontSize($line_2_size);
        $draw->setFontWeight(700);
        $draw->setFillColor($textColor);
        $tras->annotateImage($draw, $line_2_x - 1, $line_2_y - 1, 0, $line_2);
        $draw->setFillColor('white');
        $mask->annotateImage($draw, $line_2_x, $line_2_y, 0, $line_2);
        $mask->annotateImage($draw, $line_2_x - 1, $line_2_y - 1, 0, $line_2);
        $draw->setFillColor('black');
        $mask->annotateImage($draw, $line_2_x - 2, $line_2_y - 2, 0, $line_2);
        $draw->setFont($line_3_font);
        $draw->setFontSize($line_3_size);
        $draw->setFontWeight(700);
        $draw->setFillColor($textColor);
        $tras->annotateImage($draw, $line_3_x - 1, $line_3_y - 1, 0, $line_3);
        $draw->setFillColor('white');
        $mask->annotateImage($draw, $line_3_x, $line_3_y, 0, $line_3);
        $mask->annotateImage($draw, $line_3_x - 1, $line_3_y - 1, 0, $line_3);
        $draw->setFillColor('black');
        $mask->annotateImage($draw, $line_3_x - 2, $line_3_y - 2, 0, $line_3);
        $draw->setFont($line_4_font);
        $draw->setFontSize($line_4_size);
        $draw->setFontWeight(700);
        $draw->setFillColor($textColor);
        $tras->annotateImage($draw, $line_4_x - 1, $line_4_y - 1, 0, $line_4);
        $draw->setFillColor('white');
        $mask->annotateImage($draw, $line_4_x, $line_4_y, 0, $line_4);
        $mask->annotateImage($draw, $line_4_x - 1, $line_4_y - 1, 0, $line_4);
        $draw->setFillColor('black');
        $mask->annotateImage($draw, $line_4_x - 2, $line_4_y - 2, 0, $line_4);
        $mask->setImageMatte(false);
        $tras->compositeImage($mask, Imagick::COMPOSITE_COPYOPACITY, 0, 0);
        $base->compositeImage($tras, Imagick::COMPOSITE_DISSOLVE, 0, 0);
//.........这里部分代码省略.........

 function create_thumbnail($filename, $save2disk = true, $resize_type = 0)
 {
     $filename = $this->basename($filename);
     if ($this->is_image($this->mmhclass->info->root_path . $this->mmhclass->info->config['upload_path'] . $filename) == true) {
         $extension = $this->file_extension($filename);
         $thumbnail = $this->thumbnail_name($filename);
         if ($save2disk == true) {
             // Seemed easier to build the image resize upload
             // option into the already established thumbnail function
             // instead of waisting time trying to chop it up for new one.
             if ($resize_type > 0 && $resize_type <= 8) {
                 $thumbnail = $filename;
                 $this->mmhclass->info->config['advanced_thumbnails'] = false;
                 $size_values = array(1 => array("w" => 100, "h" => 75), 2 => array("w" => 150, "h" => 112), 3 => array("w" => 320, "h" => 240), 4 => array("w" => 640, "h" => 480), 5 => array("w" => 800, "h" => 600), 6 => array("w" => 1024, "h" => 768), 7 => array("w" => 1280, "h" => 1024), 8 => array("w" => 1600, "h" => 1200));
                 $thumbnail_size = $size_values[$resize_type];
             } else {
                 $thumbnail_size = $this->scale($filename, $this->mmhclass->info->config['thumbnail_width'], $this->mmhclass->info->config['thumbnail_height']);
             }
             if ($this->manipulator == "imagick") {
                 // New Design of Advanced Thumbnails created by: IcyTexx - http://www.hostili.com
                 // Classic Design of Advanced Thumbnails created by: Mihalism Technologies - http://www.mihalism.net
                 $canvas = new Imagick();
                 $athumbnail = new Imagick();
                 $imagick_version = $canvas->getVersion();
                 // Imagick needs to start giving real version number, not build number.
                 $new_thumbnails = version_compare($imagick_version['versionNumber'], "1621", ">=") == true ? true : false;
                 $athumbnail->readImage("{$this->mmhclass->info->root_path}{$this->mmhclass->info->config['upload_path']}{$filename}[0]");
                 $athumbnail->flattenImages();
                 $athumbnail->orgImageHeight = $athumbnail->getImageHeight();
                 $athumbnail->orgImageWidth = $athumbnail->getImageWidth();
                 $athumbnail->orgImageSize = $athumbnail->getImageLength();
                 $athumbnail->thumbnailImage($thumbnail_size['w'], $thumbnail_size['h']);
                 if ($this->mmhclass->info->config['advanced_thumbnails'] == true) {
                     $thumbnail_filesize = $this->format_filesize($athumbnail->orgImageSize, true);
                     $resobar_filesize = $thumbnail_filesize['f'] < 0 || $thumbnail_filesize['c'] > 9 ? $this->mmhclass->lang['5454'] : sprintf("%s%s", round($thumbnail_filesize['f']), $this->mmhclass->lang['7071'][$thumbnail_filesize['c']]);
                     if ($new_thumbnails == true) {
                         $textdraw = new ImagickDraw();
                         $textdrawborder = new ImagickDraw();
                         if ($athumbnail->getImageWidth() > 113) {
                             $textdraw->setFillColor(new ImagickPixel("white"));
                             $textdraw->setFontSize(9);
                             $textdraw->setFont("{$mmhclass->info->root_path}css/fonts/sf_fedora_titles.ttf");
                             $textdraw->setFontWeight(900);
                             $textdraw->setGravity(8);
                             $textdraw->setTextKerning(1);
                             $textdraw->setTextAntialias(false);
                             $textdrawborder->setFillColor(new ImagickPixel("black"));
                             $textdrawborder->setFontSize(9);
                             $textdrawborder->setFont("{$mmhclass->info->root_path}css/fonts/sf_fedora_titles.ttf");
                             $textdrawborder->setFontWeight(900);
                             $textdrawborder->setGravity(8);
                             $textdrawborder->setTextKerning(1);
                             $textdrawborder->setTextAntialias(false);
                             $array_x = array("-1", "0", "1", "1", "1", "0", "-1", "-1");
                             $array_y = array("-1", "-1", "-1", "0", "1", "1", "1", "0");
                             foreach ($array_x as $key => $value) {
                                 $athumbnail->annotateImage($textdrawborder, $value, 3 - $array_y[$key], 0, "{$athumbnail->orgImageWidth}x{$athumbnail->orgImageHeight} - {$resobar_filesize}");
                             }
                             $athumbnail->annotateImage($textdraw, 0, 3, 0, "{}x{$athumbnail->orgImageHeight} - {$resobar_filesize}");
                         }
                     } else {
                         $transback = new Imagick();
                         $canvasdraw = new ImagickDraw();
                         $canvas->newImage($athumbnail->getImageWidth(), $athumbnail->getImageHeight() + 12, new ImagickPixel("black"));
                         $transback->newImage($canvas->getImageWidth(), $canvas->getImageHeight() - 12, new ImagickPixel("white"));
                         $canvas->compositeImage($transback, 40, 0, 0);
                         $canvasdraw->setFillColor(new ImagickPixel("white"));
                         $canvasdraw->setGravity(8);
                         $canvasdraw->setFontSize(10);
                         $canvasdraw->setFontWeight(900);
                         $canvasdraw->setFont("AvantGarde-Demi");
                         $canvas->annotateImage($canvasdraw, 0, 0, 0, "{$athumbnail->orgImageWidth}x{$athumbnail->orgImageHeight} - {$resobar_filesize}");
                         $canvas->compositeImage($athumbnail, 40, 0, 0);
                         $athumbnail = $canvas->clone();
                     }
                 }
                 if ($this->mmhclass->info->config['thumbnail_type'] == "jpeg") {
                     $athumbnail->setImageFormat("jpeg");
                     $athumbnail->setImageCompression(9);
                 } else {
                     $athumbnail->setImageFormat("png");
                 }
                 $athumbnail->writeImage($this->mmhclass->info->root_path . $this->mmhclass->info->config['upload_path'] . $thumbnail);
             } else {
                 // I hate GD. Piece of crap supports nothing. NOTHING!
                 if (in_array($extension, array("png", "gif", "jpg", "jpeg")) == true) {
                     $function_extension = str_replace("jpg", "jpeg", $extension);
                     $image_function = "imagecreatefrom{$function_extension}";
                     $image = $image_function($this->mmhclass->info->root_path . $this->mmhclass->info->config['upload_path'] . $filename);
                     $imageinfo = $this->get_image_info($this->mmhclass->info->root_path . $this->mmhclass->info->config['upload_path'] . $this->basename($filename));
                     $thumbnail_image = imagecreatetruecolor($thumbnail_size['w'], $thumbnail_size['h']);
                     $index = imagecolortransparent($thumbnail_image);
                     if ($index < 0) {
                         $white = imagecolorallocate($thumbnail_image, 255, 255, 255);
                         imagefill($thumbnail_image, 0, 0, $white);
                     }
                     imagecopyresampled($thumbnail_image, $image, 0, 0, 0, 0, $thumbnail_size['w'], $thumbnail_size['h'], $imageinfo['width'], $imageinfo['height']);
                     $image_savefunction = sprintf("image%s", $this->mmhclass->info->config['thumbnail_type'] == "jpeg" ? "jpeg" : "png");
                     $image_savefunction($thumbnail_image, $this->mmhclass->info->root_path . $this->mmhclass->info->config['upload_path'] . $thumbnail);
                     chmod($this->mmhclass->info->root_path . $this->mmhclass->info->config['upload_path'] . $thumbnail, 0644);
//.........这里部分代码省略.........

/**
 * handler for img requests
 */
function ProcessImgRequest()
{
    if ($_SERVER["REQUEST_METHOD"] == "GET") {
        $method = $_GET["method"];
        $params = explode(",", $_GET["params"]);
        $width = (int) $params[0];
        $height = (int) $params[1];
        if ($method == "placeholder") {
            $image = new Imagick();
            $image->newImage($width, $height, "#707070");
            $image->setImageFormat("png");
            $x = 0;
            $y = 0;
            $size = 40;
            $draw = new ImagickDraw();
            while ($y < $height) {
                $draw->setFillColor("#808080");
                $points = [["x" => $x, "y" => $y], ["x" => $x + $size, "y" => $y], ["x" => $x + $size * 2, "y" => $y + $size], ["x" => $x + $size * 2, "y" => $y + $size * 2]];
                $draw->polygon($points);
                $points = [["x" => $x, "y" => $y + $size], ["x" => $x + $size, "y" => $y + $size * 2], ["x" => $x, "y" => $y + $size * 2]];
                $draw->polygon($points);
                $x += $size * 2;
                if ($x > $width) {
                    $x = 0;
                    $y += $size * 2;
                }
            }
            $draw->setFillColor("#B0B0B0");
            $draw->setFontSize($width / 5);
            $draw->setFontWeight(800);
            $draw->setGravity(Imagick::GRAVITY_CENTER);
            $draw->annotation(0, 0, $width . " x " . $height);
            $image->drawImage($draw);
            header("Content-type: image/png");
            echo $image;
        } else {
            $file_name = $_GET["src"];
            $path_parts = pathinfo($file_name);
            switch ($path_parts["extension"]) {
                case "png":
                    $mime_type = "image/png";
                    break;
                case "gif":
                    $mime_type = "image/gif";
                    break;
                default:
                    $mime_type = "image/jpeg";
                    break;
            }
            $file_name = $path_parts["basename"];
            $image = ResizeImage($file_name, $method, $width, $height);
            header("Content-type: " . $mime_type);
            echo $image;
        }
    }
}

 /**
  * 添加文字注解，可用于文字水印
  *
  * @param string $txt 必须为utf8编码,文档格式utf-8格式即可
  * @param float $opacity 设置不透明度
  * @param constant $gravity 设置文字摆放位置,GRAVITY_NorthWest,GRAVITY_North,GRAVITY_NorthEast,GRAVITY_West,
  *                 GRAVITY_Center,GRAVITY_East,GRAVITY_SouthWest,GRAVITY_South,GRAVITY_SouthEast,SAE_Static
  * @param array $font 字体数组可以设置如下属性:
  *  <pre>
  *     name,常量,字体名称，如果需要添加中文注解，请使用中文字体，否则中文会显示乱码。
  *       支持的字体：FONT_SimSun(宋体,默认)、FONT_SimKai(楷体)、FONT_SimHei(正黑)、FONT_MicroHei(微米黑)、FONT_Arial
  *     weight,字体宽度,int
  *     size，字体大小,int
  *     color,字体颜色,例如："blue", "#0000ff", "rgb(0,0,255)"等，默认为"black";
  *  </pre>
  *
  * @return bool
  * @author Sauwe
  */
 public function annotate($txt, $opacity = 0.5, $gravity = SAE_Static, $font = array("name" => FONT_SimSun, "size" => 15, "weight" => 300, "color" => "black"))
 {
     if ($this->notValid()) {
         return false;
     }
     $opacity = floatval($opacity);
     $fontfamily = FONT_SimSun;
     if (isset($font["name"])) {
         $fontfamily = $font["name"];
     }
     $fontsize = 15;
     if (isset($font["size"])) {
         $fontsize = $font["size"];
     }
     $fontweight = 300;
     if (isset($font["weight"])) {
         $fontweight = $font["weight"];
     }
     $fontcolor = "black";
     if (isset($font["color"])) {
         $fontcolor = $font["color"];
     }
     try {
         $im = new Imagick();
         $im->readImageBlob($this->_img_data);
         $id = new ImagickDraw();
         $id->setFont($fontfamily);
         //这里是一个实际上的字体路径
         $id->setFontSize($fontsize);
         $id->setFontWeight($fontweight);
         $id->setFillColor(new ImagickPixel($fontcolor));
         $id->setGravity($gravity);
         $id->setFillOpacity($opacity);
         if ($im->annotateImage($id, 0, 0, 0, $txt)) {
             $this->_img_data = $im->getImageBlob();
             return true;
         }
         return false;
     } catch (Exception $e) {
         $this->_errno = SAE_ErrUnknown;
         $this->_errmsg = $e->getMessage();
         return false;
     }
 }

     $draw = new ImagickDraw();
     while ($y < $height) {
         $draw->setFillColor("#808080");
         $points = [["x" => $x, "y" => $y], ["x" => $x + $size, "y" => $y], ["x" => $x + $size * 2, "y" => $y + $size], ["x" => $x + $size * 2, "y" => $y + $size * 2]];
         $draw->polygon($points);
         $points = [["x" => $x, "y" => $y + $size], ["x" => $x + $size, "y" => $y + $size * 2], ["x" => $x, "y" => $y + $size * 2]];
         $draw->polygon($points);
         $x += $size * 2;
         if ($x > $width) {
             $x = 0;
             $y += $size * 2;
         }
     }
     $draw->setFillColor("#B0B0B0");
     $draw->setFontSize($width / 5);
     $draw->setFontWeight(800);
     $draw->setGravity(Imagick::GRAVITY_CENTER);
     $draw->annotation(0, 0, $width . " x " . $height);
     $image->drawImage($draw);
     header("Content-type: image/png");
     echo $image;
 } else {
     $file_name = $_GET["src"];
     $path_parts = pathinfo($file_name);
     switch ($path_parts["extension"]) {
         case "png":
             $mime_type = "image/png";
             break;
         case "gif":
             $mime_type = "image/gif";
             break;