README

Vector Graphics Library

PHP library for OO-modeling of vector graphics.

Objectives

This library is designed to construct and describe general vector graphics independent of its application backend. These descriptions are intended to separate the definition on an graphic/chart/... and its representation.

A graphic could be serialized into various document types using there capabilities for vectorized representations. Currently supported/planed serializations are:

• export as standalone SVG content
• serialize into a Zend-PDF page
• serialize into an Imagine image

Installation

To add vector-graphics as a local, per-project dependency to your project, simply add a dependency on mwoerlein/vector-graphics to your project's composer.json file. Here is a minimal example of a composer.json file:

{
    "require": {
        "mwoerlein/vector-graphics": ">0.2"
    }
}

Example Usage

The following example generates a svg-image containing a pentagram in a red circle inside of a square

$graphic = new Graphic();
$graphic->setViewportCorners(-50, -50, 50, 50);

$graphic->addRectangle(-49, -49, 98, 98)->setStrokeWidth(2);
$graphic->addCircle(0, 0, 45)->setFillColor('red', 0.5);

$radius = 40;
$path = new Path($radius * sin(0./5. * pi()), $radius * cos(0./5. * pi()));
$path->lineTo($radius * sin(4./5. * pi()), $radius * cos(4./5. * pi()));
$path->lineTo($radius * sin(8./5. * pi()), $radius * cos(8./5. * pi()));
$path->lineTo($radius * sin(2./5. * pi()), $radius * cos(2./5. * pi()));
$path->lineTo($radius * sin(6./5. * pi()), $radius * cos(6./5. * pi()));
$path->close();
$graphic->addPath($path);

header('Content-Type: image/svg+xml');
echo (new SVGWriter())->toSVG($graphic, 10, 10);

Progress

see in ChangeLog