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Graphviz 模型帮助构建图。此模型的目标是表达 Graphviz 提供的可能性（尽管请注意，并非所有功能都已实现）。

此包中的所有对象都是不可变的。

重要：您必须使用 vimeo/psalm 来确保正确使用此库。

安装

composer require innmind/graphviz

使用

use Innmind\Graphviz\{
    Layout\Dot,
    Graph,
    Node,
    Node\Shape,
};
use Innmind\Url\Url;
use Innmind\Colour\Colour;
use Innmind\OperatingSystem\Factory;
use Innmind\Server\Control\Server\Command;

$dot = Dot::of();
$clusterOne = Graph::directed('one')
    ->target(Url::of('http://example.com'))
    ->displayAs('One')
    ->fillWithColor(Colour::blue->toRGBA())
    ->add($one = Node::named('one'));
$clusterTwo = Graph::directed('two')
    ->fillWithColor(Colour::red->toRGBA())
    ->add($two = Node::named('two'));
$clusterThree = Graph::directed('three')
    ->add($three = Node::named('three'));

$root = Node::named('root')
    ->shaped(Shape::house())
    ->linkedTo($one->name())
    ->linkedTo($two->name());

$graph = Graph::directed()
    ->add($root)
    ->add($one->linkedTo($three->name()))
    ->add($two->linkedTo($three->name()))
    ->cluster($clusterOne)
    ->cluster($clusterTwo)
    ->cluster($clusterThree);

$output = $dot($graph);

Factory::build()
    ->control()
    ->processes()
    ->execute(
        Command::foreground('dot')
            ->withShortOption('Tsvg')
            ->withShortOption('o', 'graph.svg')
            ->withInput($output),
    )
    ->wait();

此示例将生成指定的 svg 文件：(源代码)