ImagickDraw::bezier

(PECL imagick 2, PECL imagick 3)

ImagickDraw::bezierDraws a bezier curve

Beschreibung

public ImagickDraw::bezier(array $coordinates): bool
Warnung

Diese Funktion ist bis jetzt nicht dokumentiert. Es steht nur die Liste der Parameter 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.

Beispiele

Beispiel #1 ImagickDraw::bezier() example

<?php
function bezier($strokeColor, $fillColor, $backgroundColor) {

$draw = new \ImagickDraw();

$strokeColor = new \ImagickPixel($strokeColor);
$fillColor = new \ImagickPixel($fillColor);

$draw->setStrokeOpacity(1);
$draw->setStrokeColor($strokeColor);
$draw->setFillColor($fillColor);

$draw->setStrokeWidth(2);

$smoothPointsSet = [
[
[
'x' => 10.0 * 5, 'y' => 10.0 * 5],
[
'x' => 30.0 * 5, 'y' => 90.0 * 5],
[
'x' => 25.0 * 5, 'y' => 10.0 * 5],
[
'x' => 50.0 * 5, 'y' => 50.0 * 5],
],
[
[
'x' => 50.0 * 5, 'y' => 50.0 * 5],
[
'x' => 75.0 * 5, 'y' => 90.0 * 5],
[
'x' => 70.0 * 5, 'y' => 10.0 * 5],
[
'x' => 90.0 * 5, 'y' => 40.0 * 5],
],
];

foreach (
$smoothPointsSet as $points) {
$draw->bezier($points);
}

$disjointPoints = [
[
[
'x' => 10 * 5, 'y' => 10 * 5],
[
'x' => 30 * 5, 'y' => 90 * 5],
[
'x' => 25 * 5, 'y' => 10 * 5],
[
'x' => 50 * 5, 'y' => 50 * 5],
],
[
[
'x' => 50 * 5, 'y' => 50 * 5],
[
'x' => 80 * 5, 'y' => 50 * 5],
[
'x' => 70 * 5, 'y' => 10 * 5],
[
'x' => 90 * 5, 'y' => 40 * 5],
]
];
$draw->translate(0, 200);

foreach (
$disjointPoints as $points) {
$draw->bezier($points);
}

//Create an image object which the draw commands can be rendered into
$imagick = new \Imagick();
$imagick->newImage(500, 500, $backgroundColor);
$imagick->setImageFormat("png");

//Render the draw commands in the ImagickDraw object
//into the image.
$imagick->drawImage($draw);

//Send the image to the browser
header("Content-Type: image/png");
echo
$imagick->getImageBlob();
}

?>

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User Contributed Notes 2 notes

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2
SkepticaLee
11 years 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);}?>
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0
zombiebovine at gmail dot com
15 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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