PHP | ImagickDraw pathCurveToQuadraticBezierAbsolute() Function

The ImagickDraw::pathCurveToQuadraticBezierAbsolute() function is an inbuilt function in PHP which is used to draw a quadratic Bezier curve which is nothing but a parametric quadratic curve.

Syntax:

bool ImagickDraw::pathCurveToQuadraticBezierAbsolute( float $x1, float $y1, float $x, float $y )

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

• $x1: It specifies x-coordinate of the control point.
• $y1: It specifies y-coordinate of the control point.
• $x: It specifies x-coordinate of the end point.
• $y: It specifies y-coordinate of the end point.

Return Value: This function returns TRUE on success.

Below programs illustrate the ImagickDraw::pathCurveToQuadraticBezierAbsolute() function in PHP:

Program 1:

<?php

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

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

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

$draw->setFillColor('white');

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

// Draw curve to Quadratic Bezier Absolute (with pathClose())
$draw->pathStart();
$draw->pathCurveToQuadraticBezierAbsolute(150, 250, 950, 250);
$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, 'white');

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

$draw->setFillColor('white');

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

// Draw curve to Quadratic Bezier Absolute (without pathClose())
$draw->pathStart();
$draw->pathCurveToQuadraticBezierAbsolute(350, 250, 750, 250);
$draw->pathFinish();

// 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.pathcurvetoquadraticbezierabsolute.php