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PHP | GmagickDraw bezier() Function
  • Last Updated : 17 Jan, 2020

The GmagickDraw::bezier() function is an inbuilt function in PHP which is used to draw bezier curve.

Syntax:

GmagickDraw GmagickDraw::bezier( array $coordinate_array )

Parameters: This function accepts a single parameter $coordinate_array which holds the multidimensional array which takes the points through which curve is to be made.

Return Value: This function returns GmagickDraw object on success.

Exceptions: This function throws GmagickDrawException on error.
Used Image: To capture the canvas area.



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

Program 1: Simple Bezier Curve




<?php
  
// Create a new Gmagick object
$gmagick = new Gmagick('geeksforgeeks.png');
  
// Create a GmagickDraw object
$draw = new GmagickDraw();
  
// Set the color
$draw->setFillColor('#0E0E0E');
  
// Function to draw rectangle
$draw->rectangle(-10, -10, 800, 400);
  
// Set the fill color
$draw->setFillColor('#3D99D4');
  
// Set the stroke width
$draw->setStrokeWidth(5);
  
// Draw the curve
$draw->bezier([
    ['x' => 10, 'y' => 10],
    ['x' => 0, 'y' => 0],
    ['x' => 620, 'y' => 0],
    ['x' => 550, 'y' => 170],
]);
  
// Use of drawimage function
$gmagick->drawImage($draw);
  
// Display the output image
header("Content-Type: image/png");
echo $gmagick->getImageBlob();
?>

Output:

Program 2: Bezier curve with stroke and fill




<?php
  
// Create a new Gmagick object
$gmagick = new Gmagick('geeksforgeeks.png');
  
// Create a GmagickDraw object
$draw = new GmagickDraw();
  
// Set the color
$draw->setFillColor('#0E0E0E');
  
// Function to draw rectangle
$draw->rectangle(-10, -10, 800, 400);
  
// Set the fill color
$draw->setFillColor('yellow');
  
// Set the stroke color
$draw->setstrokecolor('purple');
  
// Set the stroke width
$draw->setStrokeWidth(5);
  
// Draw the curve
$draw->bezier([
    ['x' => 10, 'y' => 10],
    ['x' => 0, 'y' => 150],
    ['x' => 620, 'y' => 0],
    ['x' => 550, 'y' => 170],
]);
  
// 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.bezier.php

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