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PHP | ImagickDraw pathCurveToQuadraticBezierSmoothAbsolute() Function

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  • Last Updated : 23 Dec, 2019

The ImagickDraw::pathCurveToQuadraticBezierSmoothAbsolute() function is an inbuilt function in PHP which is used to draw a quadratic Bezier curve which is a parametric curve. This function can continue a curve from a quadratic curve smoothly.

Syntax:

bool ImagickDraw::pathCurveToQuadraticBezierSmoothAbsolute( float $x, float $y )

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

  • $x: It specifies the ending x-coordinate
  • $y: It specifies the ending y-coordinate

Return Value: This function returns TRUE on success.

Exceptions: This function throws ImagickException on error.

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

Program 1:




<?php
  
// Create a new imagick object
$imagick = new Imagick();
  
// Create a image on imagick object
$imagick->newImage(800, 250, 'black');
  
// Create a new ImagickDraw object
$draw = new ImagickDraw();
  
$draw->setFillColor('black');
  
// Set the stroke color
$draw->setStrokeColor('red');
  
// Draw curves to Quadratic Bezier Smooth Absolute (without pathClose())
$draw->pathStart();
$draw->pathCurveToQuadraticBezierSmoothAbsolute(3950, 250);
$draw->pathCurveToQuadraticBezierSmoothAbsolute(2950, 250);
$draw->pathCurveToQuadraticBezierSmoothAbsolute(390, 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:

Program 2:




<?php
  
// Create a new imagick object
$imagick = new Imagick();
  
// Create a image on imagick object
$imagick->newImage(800, 250, 'black');
  
// Create a new ImagickDraw object
$draw = new ImagickDraw();
  
$draw->setFillColor('black');
  
// Set the stroke color
$draw->setStrokeColor('yellow');
  
// Draw curves to Quadratic Bezier Smooth Absolute (with pathClose())
$draw->pathStart();
$draw->pathCurveToQuadraticBezierSmoothAbsolute(3950, 250);
$draw->pathCurveToQuadraticBezierSmoothAbsolute(950, 250);
$draw->pathCurveToQuadraticBezierSmoothAbsolute(2390, 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:

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


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