PHP | GmagickDraw line() Function
The GmagickDraw::line() function is an inbuilt function in PHP which is used to draw a line. This function draw the line using the current stroke color, stroke opacity, and stroke width.
Syntax:
public GmagickDraw::line( $sx, $sy, $ex, $ey )
Parameters:This function accepts four parameters as mentioned above and described below:
- $sx: This parameter takes the value of starting x coordinate.
- $sy: This parameter takes the value of starting y coordinate.
- $ex: This parameter takes the value of ending x coordinate.
- $ex: his parameter takes the value of ending y coordinate.
Return Value: This function returns GmagickDraw object on success.
Errors/Exceptions: This function throws GmagickException on error.
Below programs illustrates the GmagickDraw::annotate() function in PHP:
Program 1:
<?php // Create a GmagickDraw object $draw = new GmagickDraw(); // Set the color $draw ->setFillColor( 'Green' ); // Set the width and height of image $draw ->setStrokeWidth(1170); $draw ->setFontSize(72); // Function to draw line $draw ->line(20, 20, 280, 465); $gmagick = new Gmagick(); $gmagick ->newImage(500, 500, 'White' ); $gmagick ->setImageFormat( "png" ); // Use of drawimage function $gmagick ->drawImage( $draw ); // Display the output image header( "Content-Type: image/png" ); echo $gmagick ->getImageBlob(); ?> |
Output:
Program 2:
<?php // Create a GmagickDraw object $draw = new GmagickDraw(); // Set the color $draw ->setFillColor( 'Green' ); // Set the width and height of image $draw ->setStrokeWidth(1); // Function to draw line for ( $x = 0; $x < 40; $x ++) { $draw ->line(rand(0, 100), rand(0, 60), rand(0, 500), rand(0, 500)); $draw ->line(rand(0, 100), rand(0, 60), rand(0, 500), rand(0, 500)); $draw ->line(rand(0, 100), rand(0, 60), rand(0, 500), rand(0, 500)); $draw ->line(rand(0, 100), rand(0, 60), rand(0, 500), rand(0, 500)); } $gmagick = new Gmagick(); $gmagick ->newImage(500, 500, 'White' ); $gmagick ->setImageFormat( "png" ); // Set the color $draw ->setFillColor( 'Black' ); $draw ->setFontSize(25); // Use of drawimage function $gmagick ->drawImage( $draw ); $gmagick ->annotateImage( $draw , 5, 120, 0, 'w3wiki: A computer science portal' ); // Display the output image header( "Content-Type: image/png" ); echo $gmagick ->getImageBlob(); ?> |
Output:
Reference: http://php.net/manual/en/gmagickdraw.line.php
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