Constructor
`Circle`	`Circle([opts])` Parameters: `opts`: `CircleOptions optional` Create a circle using the passed `CircleOptions`, which specify the center, radius, and style.

Methods
`getBounds`	`getBounds()` Parameters: None Return Value: `LatLngBounds` Gets the `LatLngBounds` of this Circle.
`getCenter`	`getCenter()` Parameters: None Return Value: `LatLng` Returns the center of this circle.
`getDraggable`	`getDraggable()` Parameters: None Return Value: `boolean` Returns whether this circle can be dragged by the user.
`getEditable`	`getEditable()` Parameters: None Return Value: `boolean` Returns whether this circle can be edited by the user.
`getMap`	`getMap()` Parameters: None Return Value: `Map` Returns the map on which this circle is displayed.
`getRadius`	`getRadius()` Parameters: None Return Value: `number` Returns the radius of this circle (in meters).
`getVisible`	`getVisible()` Parameters: None Return Value: `boolean` Returns whether this circle is visible on the map.
`setCenter`	`setCenter(center)` Parameters: `center`: `LatLng\|LatLngLiteral` Return Value: None Sets the center of this circle.
`setDraggable`	`setDraggable(draggable)` Parameters: `draggable`: `boolean` Return Value: None If set to true, the user can drag this circle over the map.
`setEditable`	`setEditable(editable)` Parameters: `editable`: `boolean` Return Value: None If set to true, the user can edit this circle by dragging the control points shown at the center and around the circumference of the circle.
`setMap`	`setMap(map)` Parameters: `map`: `Map` Return Value: None Renders the circle on the specified map. If map is set to null, the circle will be removed.
`setOptions`	`setOptions(options)` Parameters: `options`: `CircleOptions` Return Value: None
`setRadius`	`setRadius(radius)` Parameters: `radius`: `number` Return Value: None Sets the radius of this circle (in meters).
`setVisible`	`setVisible(visible)` Parameters: `visible`: `boolean` Return Value: None Hides this circle if set to `false`.

Events
`center_changed`	`function()` Arguments: None This event is fired when the circle's center is changed.
`click`	`function(event)` Arguments: `event`: `MouseEvent` This event is fired when the DOM click event is fired on the circle.
`dblclick`	`function(event)` Arguments: `event`: `MouseEvent` This event is fired when the DOM dblclick event is fired on the circle.
`drag`	`function(event)` Arguments: `event`: `MouseEvent` This event is repeatedly fired while the user drags the circle.
`dragend`	`function(event)` Arguments: `event`: `MouseEvent` This event is fired when the user stops dragging the circle.
`dragstart`	`function(event)` Arguments: `event`: `MouseEvent` This event is fired when the user starts dragging the circle.
`mousedown`	`function(event)` Arguments: `event`: `MouseEvent` This event is fired when the DOM mousedown event is fired on the circle.
`mousemove`	`function(event)` Arguments: `event`: `MouseEvent` This event is fired when the DOM mousemove event is fired on the circle.
`mouseout`	`function(event)` Arguments: `event`: `MouseEvent` This event is fired on circle mouseout.
`mouseover`	`function(event)` Arguments: `event`: `MouseEvent` This event is fired on circle mouseover.
`mouseup`	`function(event)` Arguments: `event`: `MouseEvent` This event is fired when the DOM mouseup event is fired on the circle.
`radius_changed`	`function()` Arguments: None This event is fired when the circle's radius is changed.
`rightclick`	`function(event)` Arguments: `event`: `MouseEvent` This event is fired when the circle is right-clicked on.

Circle class