PHP | ImagickDraw pathLineToHorizontalRelative() Function

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The ImagickDraw::pathLineToHorizontalRelative() function is an inbuilt function in PHP which is used to draw a horizontal line path from the current point to the target point using relative coordinates. The target point then becomes the new current point.

Syntax:

bool ImagickDraw::pathLineToHorizontalRelative( float $x )

Parameters:This function accepts a single parameter $x which holds the x-coordinate.

Return Value: This function returns TRUE on success.

Exceptions: This function throws ImagickException on error.

Below given programs illustrate the ImagickDraw::pathLineToHorizontalRelative() 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(); 
  
// Set the stroke color 
$draw->setStrokeColor('Green'); 
  
// Set the stroke width 
$draw->setStrokeWidth(5); 
  
// Draw line using pathLineToHorizontalRelative 
$draw->pathStart(); 
$draw->pathMoveToRelative(0, 100); 
$draw->pathLineToHorizontalRelative(1000); 
$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(); 
  
$color = ['blue', 'red', 'green', 'yellow', 'orange', 'brown', 'pink']; 
  
// Set the stroke width 
$draw->setStrokeWidth(5); 
  
// Draw lines 
for ($x = 0; $x < 7; $x++) { 
    $draw->setStrokeColor($color[$x]); 
    $draw->pathStart(); 
    $draw->pathMoveToRelative(0, $x * 40); 
    $draw->pathLineToHorizontalRelative(800); 
    $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.pathlinetohorizontalrelative.php

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