<?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";
}
?>
ImagickDraw::line
(PECL imagick 2, PECL imagick 3)
ImagickDraw::line — Draws a line
Descrierea
public ImagickDraw::line
( float
$sx
, float $sy
, float $ex
, float $ey
) : boolAvertizare
Această funcție nu este documentată în prezent; este disponibilă numai lista sa de argumente.
Draws a line on the image using the current stroke color, stroke opacity, and stroke width.
Parametri
-
sx -
starting x coordinate
-
sy -
starting y coordinate
-
ex -
ending x coordinate
-
ey -
ending y coordinate
Valorile întoarse
Nu este întoarsă nici o valoare.
Exemple
Example #1 ImagickDraw::line()
<?php
function line($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();
}
?>
add a note
User Contributed Notes 1 note
GaryM at BinaryFarm dot com ¶
14 years ago
