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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



Last Updated : 30 Dec, 2019
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