ImagickDraw::setStrokeDashOffset()

(PECL imagick 2.0.0)

Specifies the offset into the dash pattern to start the dash

说明

ImagickDraw::setStrokeDashOffset(float $dash_offset): bool

Warning

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.

参数

$dash_offset

dash offset

返回值

没有返回值。

范例

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();
}
?>