QuadrantChart Class
===================

.. php:class:: QuadrantChart

    Represents a Quadrant Chart

    .. php:method:: addPoint(Point ...$point)

        Add point(s) to the Quadrant Chart

        :param Point ...$point: The point(s)
        :returns: A new ``QuadrantChart`` instance with the point(s) added
        :rtype: QuadrantChart

    .. php:method:: render(array $attributes = [])

        Renders the diagram

        :param array $attributes: HTML attributes for the <pre> tag as name=>value pairs

            .. note:: The *mermaid* class is added

        :returns: Mermaid diagram code in a <pre> tag
        :rtype: string

    .. php:method:: withAxes(array|string $x, array|string $y)

        Set the labels for the X and Y axes

        :param list<string>|string $x: X-axis label. Either (string) left axis label, or (array) left/right labels
        :param list<string>|string $y: Y-axis label. Either (string) bottom axis label, or (array) bottom/top labels
        :returns: A new ``QuadrantChart`` instance with axes labels
        :rtype: QuadrantChart

    .. php:method:: withComment(string $comment)

        Set a comment for the Point

        :param string $comment: The comment
        :returns: A new ``QuadrantChart`` instance with the comment
        :rtype: QuadrantChart

    .. php:method:: withPoint(Point ...$point)

        Set point(s) on the Quadrant Chart

        :param Point ...$point: The point(s)
        :returns: A new ``QuadrantChart`` instance with the point(s)
        :rtype: QuadrantChart

    .. php:method:: withQuadrants(string $tr, string $tl, string $bl, string $br)

        Set the quadrant labels

        :param string $tr: Label for the Top Right quadrant
        :param string $tl: Label for the Top Left quadrant
        :param string $bl: Label for the Bottom Left quadrant
        :param string $br: Label for the Bottom Right quadrant
        :returns: A new ``QuadrantChart`` instance with the quadrant labels
        :rtype: QuadrantChart

    .. php:method:: withTitle(string $title)

        Set a title for the Quadrant Chart

        :param string $title: The title
        :returns: A new ``QuadrantChart`` instance with the title
        :rtype: QuadrantChart