PHP 5.4.31 Released

ImagickDraw::line

(PECL imagick 2.0.0)

ImagickDraw::lineDraws a line

Descrierea

bool ImagickDraw::line ( float $sx , float $sy , float $ex , float $ey )
Avertizare

Această funcție nu este documentată în prezent; este disponibilă numai lista sa de argumente.

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

Parametri

sx

starting x coordinate

sy

starting y coordinate

ex

ending x coordinate

ey

ending y coordinate

Valorile întoarse

Nu este întoarsă nici o valoare.

add a note add a note

User Contributed Notes 1 note

up
-1
GaryM at BinaryFarm dot com
4 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 > )
    {
       
$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";
}
?>
To Top