ImagickDraw::getStrokeDashOffset()函數是PHP中的內置函數,用於將偏移量添加到破折號模式中以開始破折號。該偏移量不過是開始由setStrokeDashArray()設置破折號之前要給的間距。
用法:
float ImagickDraw::getStrokeDashOffset( void )
參數:此函數不接受任何參數。
返回值:該函數返回一個包含偏移量的浮點值。
異常:該函數在錯誤時引發ImagickException。
以下示例程序旨在說明PHP中的ImagickDraw::getStrokeDashOffset()函數:
示例1:
<?php
// Create a new ImagickDraw object
$draw = new ImagickDraw();
// Get the stroke dash offset
$offset = $draw->getStrokeDashOffset();
echo $offset;
?>
輸出:
0 // Which is the default value
示例2:
<?php
// Create a new ImagickDraw object
$draw = new ImagickDraw();
// Set the stroke dash offset
$draw->setStrokeDashOffset(50);
// Get the stroke dash offset
$offset = $draw->getStrokeDashOffset();
echo $offset;
?>
輸出:
50
示例3:
<?php
// Create a new ImagickDraw object
$draw = new ImagickDraw();
// Create a new imagick object
$imagick = new Imagick();
// Create a image on imagick object
$imagick->newImage(800, 250, 'black');
// Create a new ImagickDraw object
$draw = new ImagickDraw();
// Set the fill color
$draw->setFillColor('black');
// Set the color of stroke
$draw->setStrokeColor('white');
// Set the font size
$draw->setFontSize(15);
// Set the stroke dash array
$draw->setStrokeDashArray([20, 5, 19, 15, 5, 15]);
// Draw a rectangle
$draw->rectangle(100, 50, 225, 175);
// Annotate a text
$draw->annotation(50, 200, 'The strokeDashOffset here is '
. $draw->getStrokeDashOffset());
// Set the stroke dash offset
$draw->setStrokeDashOffset(20);
// Draw a rectangle
$draw->rectangle(500, 50, 625, 175);
// Get the stroke dash array
$strokeDashArray = $draw->getStrokeDashArray();
// Annotate a text
$draw->annotation(450, 200, 'The strokeDashOffset here is '
. $draw->getStrokeDashOffset());
// Render the draw commands
$imagick->drawImage($draw);
// Show the output
$imagick->setImageFormat('png');
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>
輸出:
參考: https://www.php.net/manual/en/imagickdraw.getstrokedashoffset.php
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注:本文由純淨天空篩選整理自gurrrung大神的英文原創作品 PHP | ImagickDraw getStrokeDashOffset() 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。