(PECL imagick 2.0.0)
ImagickDraw::setStrokeDashOffset — Specifies the offset into the dash pattern to start the dash
$dash_offset
)本函数还未编写文档，仅有参数列表。
Specifies the offset into the dash pattern to start the dash.
dash_offsetdash offset
没有返回值。
Example #1 ImagickDraw::setStrokeDashOffset()
<?php
function setStrokeDashOffset($strokeColor, $fillColor, $backgroundColor) {
$draw = new \ImagickDraw();
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);
$draw->setStrokeWidth(4);
$draw->setStrokeDashArray([20, 20]);
$draw->setStrokeDashOffset(0);
$draw->rectangle(100, 50, 225, 175);
//Start the dash effect halfway through the solid portion
$draw->setStrokeDashOffset(10);
$draw->rectangle(275, 50, 400, 175);
//Start the dash effect on the space portion
$draw->setStrokeDashOffset(20);
$draw->rectangle(100, 200, 225, 350);
$draw->setStrokeDashOffset(5);
$draw->rectangle(275, 200, 400, 350);
$image = new \Imagick();
$image->newImage(500, 400, $backgroundColor);
$image->setImageFormat("png");
$image->drawImage($draw);
header("Content-Type: image/png");
echo $image->getImageBlob();
}
?>