PHP ImagickDraw Draws an arc

说明

ImagickDraw::arc ( float $sx , float $sy , float $ex , float $ey , float $sd , float $ed ) : bool

Warning

本函数还未编写文档，仅有参数列表。

Draws an arc falling within a specified bounding rectangle on the image.

参数

sx: Starting x ordinate of bounding rectangle
sy: starting y ordinate of bounding rectangle
ex: ending x ordinate of bounding rectangle
ey: ending y ordinate of bounding rectangle
sd: starting degrees of rotation
ed: ending degrees of rotation

返回值

没有返回值。

范例

Example #1 ImagickDraw::arc()

 <?php
function arc($strokeColor, $fillColor, $backgroundColor, $startX, $startY, $endX, $endY, $startAngle, $endAngle) {

    //Create a ImagickDraw object to draw into.
    $draw = new \ImagickDraw();
    $draw->setStrokeWidth(1);
    $draw->setStrokeColor($strokeColor);
    $draw->setFillColor($fillColor);
    $draw->setStrokeWidth(2);

    $draw->arc($startX, $startY, $endX, $endY, $startAngle, $endAngle);

    //Create an image object which the draw commands can be rendered into
    $image = new \Imagick();
    $image->newImage(IMAGE_WIDTH, IMAGE_HEIGHT, $backgroundColor);
    $image->setImageFormat("png");

    //Render the draw commands in the ImagickDraw object 
    //into the image.
    $image->drawImage($draw);

    //Send the image to the browser
    header("Content-Type: image/png");
    echo $image->getImageBlob();
}

?>