PHP | ImagickDraw pathEllipticArcAbsolute() Function

The ImagickDraw::pathEllipticArcAbsolute() function is an inbuilt function in PHP which is used to draw an elliptical arc from the current point to (x, y) using absolute coordinates.

Syntax:

bool ImagickDraw::pathEllipticArcAbsolute(
float $rx, float $ry, float $x_axis_rotation, 
bool $large_arc_flag, bool $sweep_flag, float $x, 
float $y )

Parameters: This function accepts seven parameters as mentioned above and described below:

• $rx: It specifies the x-radius.
• $ry: It specifies the y-radius
• $x_axis_rotation: It specifies x-axis rotation
• $large_arc_flag: It specifies whether to draw the larger of the available arcs.
• $sweep_flag: It specifies whether to draw the arc matching a clock-wise rotation.
• $x: It specifies the x-coordinate.
• $y: It specifies the y-coordinate.

Return Value: This function returns TRUE on success.

Exceptions: This function throws ImagickException on error.

Below given programs illustrate the ImagickDraw::pathEllipticArcAbsolute() function in PHP:

Program 1:

<?php

// Create a new imagick object
$imagick = new Imagick();

// Create a image on imagick object
$imagick->newImage(800, 250, 'green');

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

$draw->setFillColor('blue');

// Set the stroke color
$draw->setStrokeColor('red');

// Set the stroke width
$draw->setStrokeWidth(15);

// Draw elliptic arc
$draw->pathStart();
$draw->pathEllipticArcAbsolute(420, 250, 10, true, true, 40, 40);
$draw->pathClose();
$draw->pathFinish();

// Render the draw commands
$imagick->drawImage($draw);

// Show the output
$imagick->setImageFormat('png');
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>

Output:

Program 2:

<?php

// Create a new imagick object
$imagick = new Imagick();

// Create a image on imagick object
$imagick->newImage(800, 250, '#E57733');

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

// Set the width of stroke
$draw->setStrokeWidth(1);

// Set the color of stroke
$draw->setStrokeColor('#E57733');

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

// Set the fill rule
$draw->setFillRule(Imagick::FILLRULE_NONZERO);

// Draw a sunset cartoon
$draw->pathStart();
$draw->pathMoveToAbsolute(0, 100);
$draw->pathEllipticArcAbsolute(420, 400, 410, true, true, 0, 900);
$draw->pathMoveToAbsolute(300, 250);
$draw->pathEllipticArcAbsolute(420, 600, 410, true, true, 0, 900);
$draw->pathClose();
$draw->pathFinish();
$draw->setFillColor('yellow');
$draw->translate(30, 0);
$draw->circle(300, 100, 300, 150);

// Render the draw commands
$imagick->drawImage($draw);

// Show the output
$imagick->setImageFormat('png');
header("Content-Type: image/png");
echo $imagick->getImageBlob();
?>

Output:

Reference: https://www.php.net/manual/en/imagickdraw.pathellipticarcabsolute.php