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ImagickDraw::setStrokeLineJoin

(PECL imagick 2, PECL imagick 3)

ImagickDraw::setStrokeLineJoin — Specifies the shape to be used at the corners of paths when they are stroked

说明

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

警告

本函数还未编写文档，仅有参数列表。

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

参数

linejoin: One of the LINEJOIN constant (imagick::LINEJOIN_*).

返回值

没有返回值。

示例

示例 #1 ImagickDraw::setStrokeLineJoin() example

<?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 * 5 + $x * $offset],
            ['x' => 20 * 5, 'y' => 20 * 5 + $x * $offset],
            ['x' => 70 * 5, 'y' => 50 * 5 + $x * $offset],
            ['x' => 40 * 5, 'y' => 10 * 5 + $x * $offset],
        ];

        $draw->polyline($points);
    }

    $image = new \Imagick();
    $image->newImage(500, 700, $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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Rex Schrader ¶

14 years ago

From imagick_helpers.c (pecl release), possible values are:
  LINEJOIN_UNDEFINED
  LINEJOIN_MITER
  LINEJOIN_ROUND
  LINEJOIN_BEVEL

down

sudopeople gmail ¶

14 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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