A cylinder with a label.

Supported `attrs` properties

Selector | Node | Description
--- | --- | ---
root | SVGGElement | Container of all nodes
body | SVGPathElement | Lateral area of the cylinder The shape has a custom attribute `lateralArea` set to `10` by default. The attribute sets the SVGPathElement's `d` in the shape of the lateral area of a tilted cylinder. The attribute expects a `topRy` value; either a percentage or a number. The value determines the vertical radius of the exposed area of cylinder base; either relative to shape height, or directly. (Refer to the `cylinder.topRy` function for more detailed specification.)
top | SVGEllipseElement | Top of the cylinder (cylinder base)
label | SVGTextElement | Text inside the body

##### shapes.standard.Cylinder.prototype.topRy

    cylinder.topRy()

Return the vertical radius of the exposed area of the cylinder base (the value of the `body/lateralArea` attribute; `10` by default).

    cylinder.topRy(t, [opt])

Set the cylinder vertical radius of the exposed area of the cylinder base.

If the provided value is a percentage, it is relative to the `refBBox.height` of the shape. In practice, only values between `'0%'` and `'50%'` make sense. If the provided value is a number, it determines the vertical radius directly. Only values between `0` and half of `refBBox.height` make sense.

The function automatically sets the value of several attributes: `body/lateralArea`; and `top/ry`, `top/cy`, `top/refRy` and `top/refCy`. If these arguments need to be modified further, make sure to assign them only after calling `cylinder.topRy`.

Example usage:

    var cylinder = new standard.Cylinder();
    cylinder.resize(100, 200);
    cylinder.position(525, 75);
    cylinder.attr('root/title', 'joint.shapes.standard.Cylinder');
    cylinder.attr('body/fill', 'lightgray');
    cylinder.attr('top/fill', 'gray');
    cylinder.attr('label/text', 'Cylinder');
    cylinder.topRy('10%');
    cylinder.addTo(graph);