ImagickDraw::setStrokeLineJoin

(PECL imagick 2.0.0)

ImagickDraw::setStrokeLineJoinSpecifies the shape to be used at the corners of paths when they are stroked

Description

ImagickDraw::setStrokeLineJoin ( int $linejoin ) : bool
Warning

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

Specifies the shape to be used at the corners of paths (or other vector shapes) when they are stroked.

Parameters

linejoin

LINEJOIN_ constant

Return Values

No value is returned.

Examples

Example #1 ImagickDraw::setStrokeLineJoin()

<?php
function setStrokeLineJoin($strokeColor$fillColor$backgroundColor) {

    
$draw = new \ImagickDraw();
    
$draw->setStrokeWidth(1);
    
$draw->setStrokeColor($strokeColor);
    
$draw->setFillColor($fillColor);

    
$draw->setStrokeWidth(20);

    
$offset 220;

    
$lineJoinStyle = [
        \
Imagick::LINEJOIN_MITER,
        \
Imagick::LINEJOIN_ROUND,
        \
Imagick::LINEJOIN_BEVEL,
        ];

    for (
$x 0$x count($lineJoinStyle); $x++) {
        
$draw->setStrokeLineJoin($lineJoinStyle[$x]);
        
$points = [
            [
'x' => 40 5'y' => 10 $x $offset],
            [
'x' => 20 5'y' => 20 $x $offset],
            [
'x' => 70 5'y' => 50 $x $offset],
            [
'x' => 40 5'y' => 10 $x $offset],
        ];

        
$draw->polyline($points);
    }

    
$image = new \Imagick();
    
$image->newImage(500700$backgroundColor);
    
$image->setImageFormat("png");

    
$image->drawImage($draw);

    
header("Content-Type: image/png");
    echo 
$image->getImageBlob();
}

?>

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User Contributed Notes 2 notes

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1
Rex Schrader
10 years ago
From imagick_helpers.c (pecl release), possible values are:
  LINEJOIN_UNDEFINED
  LINEJOIN_MITER
  LINEJOIN_ROUND
  LINEJOIN_BEVEL
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0
sudopeople gmail
10 years ago
For many (myself included) Rex's note maybe not be blatant enough. The constants are declared for the Imagick class only, so using them requires this syntax: Imagick::LINEJOIN_ constant

Here's an example oh how you might use it:

<?php
$img
= new Imagick();
$img->newImage($width, $height, new ImagickPixel('transparent'));
$draw = new ImagickDraw();
$draw->setStrokeLineJoin(Imagick::LINEJOIN_ROUND);
?>

If you're not drawing polylines and are drawing simple lines, also see setStrokeLineCap
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