I recently found this amazing class located here, and tried using it.
However, it only works with some of the basic functions such as move, horizontal line, and vertical line.
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I have tried extending this existing class by adding additional checks (and changing the regex).
public static function fromPath($pathString) {
preg_match_all('/([mlvhzc][^mlvhzc]*)/i', $pathString, $commands);
$pt = array(0, 0);
$bounds = new self();
foreach ($commands[0] as $command) {
preg_match_all('/((\+|-)?\d+(\.\d+)?(e(\+|-)?\d+)?)/i', $command, $matches);
$i = 0;
while ($i < count($matches[1])) {
switch ($command[0]) {
case 'm' :
case 'l' :
$pt[0] += $matches[1][$i++];
$pt[1] += $matches[1][$i++];
break;
case 'M' :
case 'L' :
$pt[0] = $matches[1][$i++];
$pt[1] = $matches[1][$i++];
$last=$pt;
break;
case 'v' :
$pt[1] += $matches[1][$i++];
break;
case 'V' :
$pt[1] = $matches[1][$i++];
$last[1]=$pt[1];
break;
case 'h' :
$pt[0] += $matches[1][$i++];
break;
case 'H' :
$pt[0] = $matches[1][$i++];
$last[0]=$pt[0];
break;
case 'z' :
case 'Z' :
break;
case 'c':
$pt[0] = $last[0]+$matches[1][4];
$pt[1] = $last[1]+$matches[1][5];
$last=$pt;
$i=count($matches[1]);
break;
default :
throw new RuntimeException("Unhandled path command: " . $command[0]);
}
$bounds->extend($pt[0], $pt[1]);
}
}
return $bounds;
}
I checked out the SVG manual and found out that 'c' only has 6 parameters, knowing that the last 2 is where the curve will end up at, I tried to extend the points based on that...
For the moment, my tests are based around this:
<svg xmlns="http://www.w3.org/2000/svg" width="109" height="109" viewBox="0 0 109 109">
<g style="fill:none;stroke:#000000;stroke-width:3;stroke-linecap:round;stroke-linejoin:round;">
<path d="M32.25,41c1.25,0.62,3.12,0.67,5.5,0.5c7.12-0.5,19.12-2.5,24-3c0.99-0.1,2.62-0.25,3.75,0" />
</g>
When run in the browser, Chrome reports that it's width to height ratio (because I know svg doesn't exactly have sizes), is around 5 to 6, however, when I find the ratio with my script, it's completely off.
I'd like to know if there's another svg class built that supports all the functions (C,c,Q,q,etc).
I know that there's a way to get the box by converting it into an image, but I feel that is inefficient, also there's getBBox in javascript, but I'd like to perform the calculations on the server.
Thanks for Reading!