Create a gist now

Instantly share code, notes, and snippets.

Embed
What would you like to do?
shadow mask SVG
<?php
/*
* (c) 2017/08/20- yoya@awm.jp
* $ composer require yoya/php-svg
*/
require_once("vendor/autoload.php");
use SVG\SVGImage;
use SVG\Nodes\Structures\SVGStyle;
use SVG\Nodes\Structures\SVGDefs;
use SVG\Nodes\Gradients\SVGStop;
use SVG\Nodes\Gradients\SVGRadialGradient;
use SVG\Nodes\Shapes\SVGCircle;
list($width, $height) = [1000, 1000];
$image = new SVGImage($width, $height);
$doc = $image->getDocument();
$style = new SVGStyle();
$style->setCss(":root {background-color:black; }");
$doc->addChild($style);
$defs = new SVGDefs();
$doc->addChild($defs);
$gradTable = [
"rgrad" => ["#F00", "#B00", "black"],
"ggrad" => ["#0F0", "#0B0", "black"],
"bgrad" => ["#22F", "#11B", "black"],
];
foreach ($gradTable as $id => $colors) {
$grad = new SVGRadialGradient(0.5, 0.5, 0.45);
$grad->setAttribute("id", $id);
$stop0 = new SVGStop("60%", $colors[0]);
$stop1 = new SVGStop("90%", $colors[1]);
$stop2 = new SVGStop("100%",$colors[2]);
$grad->addChild($stop0);
$grad->addChild($stop1);
$grad->addChild($stop2);
$defs->addChild($grad);
}
$unitX = 40;
$unitY = sqrt($unitX*$unitX - ($unitX/2)*($unitX/2));
$radius = 17;
for ($y = 0, $row = 0 ; $y < ($height+$unitY) ; $y+= $unitY, $row++) {
for ($x = ($row%2)?0:($unitX/2), $column = 0 ; $x < $width ; $x+= $unitX, $column++) {
$circle = new SVGCircle($x, $y, $radius, $radius);
$idx = (((int)($row*3/2) + $column)%3);
// $color = ["#FF0000", "#00FF00", "#0000FF"][$idx];
$color = ["url(#rgrad)","url(#ggrad)","url(#bgrad)"][$idx];
$circle->setStyle('fill', $color);
$doc->addChild($circle);
}
}
header('Content-Type: image/svg+xml');
echo $image;
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment