code above will be the basic example which is shown here.</a></p>

    <br>
    </div>

    <h2 id="Contents">Contents</h2>
    <ul>
        <li><a href="#modules">Modules</a></li>
        <li><a href="#options">Options</a></li>
        <li><a href="#methods">Method Reference</a>
            <ul>
                <li><a href="#methodGlobal">Global</a></li>
                <li><a href="#methodCanvas">Canvas</a></li>
                <li><a href="#methodClustering">Clustering</a></li>
                <li><a hre