Draws a circle on a GoogleMap using Polylines using the location if the specified <googlemaps:point> as it's centerpoint.
| Attributes |
| Name | Required | Request-time | Type | Description |
| id | true | true | java.lang.String | A page unique identifier for this circle. |
| point | true | true | java.lang.String | The id of the <googlemaps:point> to use as the center of this circle. |
| radius | true | true | double | The radius (in miles) of the circle. |
| color | false | true | java.lang.String | The hexidecimal color value for the circle (Default is #ff0000). |
| weight | false | true | int | The thickness of the line in pixels. Default is 2. |
| opacity | false | true | float | A float between 0 and 1 for opacity. A value of .50 would result in a 50% opaque line. Default is .50. |