ImagickDraw::line

(PECL imagick 2, PECL imagick 3)

ImagickDraw::line — Draws a line

Description

public function ImagickDraw::line(
float $start_x,
float $start_y,
float $end_x,
float $end_y
): bool

Warning

This function is currently not documented; only its argument list is available.

Draws a line on the image using the current stroke color, stroke opacity, and stroke width.

Parameters

start_x: starting x coordinate
start_y: starting y coordinate
end_x: ending x coordinate
end_y: ending y coordinate

Return Values

No value is returned.

Examples

Example #1 ImagickDraw::line() example

<?php
function line($strokeColor, $fillColor, $backgroundColor) {
 $draw = new \ImagickDraw();
 $draw->setStrokeColor($strokeColor);
 $draw->setFillColor($fillColor);
 $draw->setStrokeWidth(2);
 $draw->setFontSize(72);
 $draw->line(125, 70, 100, 50);
 $draw->line(350, 170, 100, 150);
 $imagick = new \Imagick();
 $imagick->newImage(500, 500, $backgroundColor);
 $imagick->setImageFormat("png");
 $imagick->drawImage($draw);
 header("Content-Type: image/png");
 echo $imagick->getImageBlob();
}
?>

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User Contributed Notes 1 note

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-1

GaryM at BinaryFarm dot com ¶

16 years ago

<?php
// a twist on the above radar screen. 
// This makes random colored spokes from a center point
 $width = 400;
 $height = 400;
 
 $image = new Imagick();
 $image->newImage( $width, $height, new ImagickPixel( 'wheat' ) );
 $draw = new ImagickDraw();
 //$draw->setStrokeColor( new ImagickPixel( 'black' ) );
 $rx = $width / 2;
 $ry = $height / 2;
 $total = 2*M_PI;
 $part = $total / 16;
 while( $total > 0 )
 {
 $ex = $rx +$rx * sin( $total );
 $ey = $ry +$ry * cos( $total );
 $draw->line ( $rx, $ry, $ex, $ey );
 $total -= $part;
 // We need three HEX numbers to create an RGB color code like '#FF33DD'.
 $draw->setStrokeColor( get_random_color() );
 }
 $image->drawImage( $draw );
 $image->setImageFormat( "png" );
 header( "Content-Type: image/png" );
 echo $image;
 exit;
function get_random_color() // Thanks to Greg R. for this nice little function.
{
 for ($i = 0; $i<6; $i++)
 {
 $c .= dechex(rand(0,15));
 }
 return "#$c";
} 
?>

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