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ImagickDraw::point

(PECL imagick 2, PECL imagick 3)

ImagickDraw::point — Draws a point

说明

public ImagickDraw::point(float $x, float $y): bool

警告

本函数还未编写文档，仅有参数列表。

Draws a point using the current stroke color and stroke thickness at the specified coordinates.

参数

x: point's x coordinate
y: point's y coordinate

返回值

没有返回值。

示例

示例 #1 ImagickDraw::point() example

<?php
function point($fillColor, $backgroundColor) {

    $draw = new \ImagickDraw();

    $draw->setFillColor($fillColor);

    for ($x = 0; $x < 10000; $x++) {
        $draw->point(rand(0, 500), rand(0, 500));
    }

    $imagick = new \Imagick();
    $imagick->newImage(500, 500, $backgroundColor);
    $imagick->setImageFormat("png");
    $imagick->drawImage($draw);

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

?>

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User Contributed Notes 2 notes

down

Brian ¶

10 years ago

This no longer uses the fill color. It now uses the stroke color, consistent with the documentation.

down

spz ¶

14 years ago

point($x, $y) uses the FillColor of ImagickDraw! This actually took quite a while, till I found out that it's falsely documented on these pages. So to draw single pixels, do it like this:



<?php

$image = new Imagick();

$draw = new ImagickDraw();

$pixel = new ImagickPixel('red');

$image->newImage(10, 10, 'transparent', 'gif');



// Here comes the magick:

$pixel->setColor($_POST[$i."x".$j]);

$draw->setFillColor($pixel);

$draw->point($i,$j);



$image->drawImage($draw);

$image->writeImages($path, true);

?>

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