ImagickDraw::bezier

(PECL imagick 2.0.0)

ImagickDraw::bezierDraws a bezier curve

Beschreibung

bool ImagickDraw::bezier ( array $coordinates )
Warnung

Diese Funktion ist bis jetzt nicht dokumentiert. Es steht nur die Liste der Argumente zur Verfügung.

Draws a bezier curve through a set of points on the image.

Parameter-Liste

coordinates

Multidimensional array like array( array( 'x' => 1, 'y' => 2 ), array( 'x' => 3, 'y' => 4 ) )

Rückgabewerte

Es wird kein Wert zurückgegeben.

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User Contributed Notes 2 notes

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0
SkepticaLee
6 months ago
This function requires at least 3 points. The following code fails when there are only two points left in the array:

<?php
$im
= new Imagick ();
$points = array (array ('x' => 10, 'y' => 10), array ('x' => 20, 'y' => 10), array ('x' => 30, 'y' => 40), array ('x' => 40, 'y' => 20), array ('x' => 50, 'y' => 60));
$n = 0;
while (!empty (
$points))
{
   
$im->newImage (64, 64, "white");
   
$draw = new ImagickDraw ();
   
$draw->setFillColor ("none");
   
$draw->setStrokeWidth (4);
   
$draw->setStrokeColor ("black");
   
$draw->setStrokeOpacity (0.9);
   
$draw->setStrokeAntiAlias (true);
   
$draw->bezier ($points);
   
$im->drawImage ($draw);
   
$im->writeImage ("IMG_$n.png");
   
$draw->destroy ();
   
$im->destroy ();
    echo
count ($points) . ", $n: <img src=\"IMG_$n.png\"><br>";
   
$n++;
   
array_shift ($points);
}
?>
up
0
zombiebovine at gmail dot com
4 years ago
How to use:

<?php
    $width
200;
   
$height = 200;
   
$border = 2;
   
   
$img = new Imagick();
   
$img->newImage( $width, $height, new ImagickPixel( 'transparent' ) );
   
   
$draw = new ImagickDraw();
   
$draw->setStrokeColor( new ImagickPixel( 'black' ) );
   
$draw->setStrokeWidth( 2 );
   
$draw->setFillColor( new ImagickPixel( 'transparent' ) );

   
// will fail in an obscure manner if the input data is invalid
   
$points = array
    (
        array(
'x' => 0, 'y' => 200 ),
        array(
'x' => 0, 'y' => 0 ),
        array(
'x' => 200, 'y' => 200 ),
        array(
'x' => 200, 'y' => 0 )
    );
   
   
$draw->bezier($points);
           
   
$img->drawImage( $draw );
   
$img->setImageFormat( "png" );
   
   
header( "Content-Type: image/png" );
    echo
$img;
?>
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