ImagickDraw::scale()函數是PHP中的內置函數,用於調整縮放因子以在水平和垂直方向上應用到當前坐標空間。
用法:
bool ImagickDraw::scale( $x, $y )
參數:該函數接受上麵提到並在下麵描述的兩個參數:
- $x:此參數用於保存水平因子的值。
- $y:此參數用於保存垂直係數的值。
返回值:成功時此函數返回True。
以下示例程序旨在說明PHP中的ImagickDraw::scale()函數:
示例1:
<?php
// require_once('path/vendor/autoload.php');
// Create an ImagickDraw object
$draw = new \ImagickDraw();
// Set the Stroke Color
$draw->setStrokeColor('Green');
// Set the Fill Color
$draw->setFillColor('Red');
// Set the stroke width
$draw->setStrokeWidth(7);
// Draw the rectangle
$draw->rectangle(40, 30, 200, 260);
// Set the scale
$draw->scale(1.4, 1.4);
// Set the fill color
$draw->setFillColor('lightgreen');
// Draw the rectangle
$draw->rectangle(40, 30, 200, 260);
// Create an Imagick object
$image = new \Imagick();
// Set the image dimensions
$image->newImage(800, 400, 'White');
// Set the image format
$image->setImageFormat("png");
// Draw the image
$image->drawImage($draw);
header("Content-Type: image/png");
// Display teh iamge
echo $image->getImageBlob();
?>
輸出:
示例2:
<?php
// require_once('path/vendor/autoload.php');
// Create an Imagick Draw object
$draw = new \ImagickDraw();
// Set the stroke color
$strokeColor = new \ImagickPixel('Green');
// Set the fill color
$fillColor = new \ImagickPixel('Red');
// Set the stroke opacity
$draw->setStrokeOpacity(1);
// Set the stroke color
$draw->setStrokeColor('Green');
// Set the Fill Color
$draw->setFillColor('Red');
// Set the stroke width
$draw->setStrokeWidth(2);
$smoothPointsSet = [
[
['x' => 10.0 * 5, 'y' => 10.0 * 5],
['x' => 30.0 * 5, 'y' => 90.0 * 5],
['x' => 25.0 * 5, 'y' => 10.0 * 5],
['x' => 50.0 * 5, 'y' => 50.0 * 5],
]
];
foreach ($smoothPointsSet as $points) {
$draw->bezier($points);
}
// Set the stroke color
$draw->setStrokeColor('black');
// Set the fill color
$draw->setFillColor('lightgreen');
// Set the scale
$draw->scale(1.5, 1.5);
foreach ($smoothPointsSet as $points) {
$draw->bezier($points);
}
// Create an imagick object
$imagick = new \Imagick();
// Set the image dimensions
$imagick->newImage(400, 500, 'White');
// Set the image format
$imagick->setImageFormat("png");
// Draw the image
$imagick->drawImage($draw);
header("Content-Type: image/png");
// Display the image
echo $imagick->getImageBlob();
?>
輸出:
參考: http://php.net/manual/en/imagickdraw.scale.php
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注:本文由純淨天空篩選整理自sarthak_ishu11大神的英文原創作品 PHP | ImagickDraw scale() Function。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。