ImagickDraw::arc

(PECL imagick 2, PECL imagick 3)

ImagickDraw::arc — Draws an arc

说明

public ImagickDraw::arc(
    float $start_x,
    float $start_y,
    float $end_x,
    float $end_y,
    float $start_angle,
    float $end_angle
): bool
警告

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

start_x

Starting x ordinate of bounding rectangle

start_y

starting y ordinate of bounding rectangle

end_x

ending x ordinate of bounding rectangle

end_y

ending y ordinate of bounding rectangle

start_angle

starting degrees of rotation

end_angle

ending degrees of rotation

返回值

没有返回值。

示例

示例 #1 ImagickDraw::arc() example

<?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();
}

?>