    vel.getBBox([options])

Return the bounding box of the element after transformations are applied. Unlike vel.bbox(), this function fixes a browser implementation bug to return the correct bounding box if this elemenent is a group of svg elements (if options.recursive is specified). The `options` argument is optional. Two attributes may be provided inside the object. If `options.target` is not undefined, bounding box will be computed relatively to the transformations of the `target` element; if it is undefined, the bounding box will be computed relatively to the element calling the function. If `options.recursive` is true, the bounding box is computed as a union of all individual descendants' bounding boxes.