PHP | GmagickDraw arc() Function

The GmagickDraw::arc() function is an inbuilt function in PHP which is used to draw an arc falling within a specified bounding rectangle on the image. 

Syntax:

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

Parameters: This function accept six parameters as mentioned above and described below: 

• $sx: It specifies the starting x-ordinate of rectangle.
• $sy: It specifies the starting y-ordinate of rectangle.
• $ex: It specifies the ending x-ordinate of rectangle.
• $ey: It specifies the ending y-ordinate of rectangle.
• $sd: It specifies the starting degrees of rotation.
• $ed: It specifies the ending degrees of rotation.

Return Value: This function returns GmagickDraw object on success. 

Exceptions: This function throws GmagickDrawException on error. 

Below given programs illustrate the GmagickDraw::arc() function in PHP: 

Used Image:

Program 1 (Drawing arc from scratch):

PHP

<?php

// Create a new Gmagick object
$gmagick = new Gmagick('geeksforgeeks.png');

// Create a GmagickDraw object
$draw = new GmagickDraw();

// Set the color
$draw->setFillColor('white');

// Function to draw rectangle
$draw->rectangle(0, 0, 800, 400);

// Set the fill color
$draw->setFillColor('white');

// Set the stroke color
$draw->setstrokecolor('black');

// Set the stroke width
$draw->setStrokeWidth(5);

// Mark a arc
$draw->arc(60, -60, 460, 170, 0, 200);

// Use of drawimage function
$gmagick->drawImage($draw);

// Display the output image
header("Content-Type: image/png");
echo $gmagick->getImageBlob();
?>

Output:

Program 2 (Drawing arc on a image):

php

<?php

// Create a new Gmagick object
$gmagick = new Gmagick('geeksforgeeks.png');

// Create a GmagickDraw object
$draw = new GmagickDraw();

// Set the fill color
$draw->setFillColor('red');

// Set the stroke color
$draw->setstrokecolor('green');

// Set the stroke width
$draw->setStrokeWidth(5);

// Mark a arc
$draw->arc(160, -60, 360, 170, 50, 200);

// Use of drawimage function
$gmagick->drawImage($draw);

// Display the output image
header("Content-Type: image/png");
echo $gmagick->getImageBlob();
?>

Output:

Reference: https://www.php.net/manual/en/gmagickdraw.arc.php