The supported attributes in this source.
OptionalcrsThe coordinate system of this source, if any.
OptionalpointThe total number of points in this source.
Note: if the source cannot provide a total point count (for example, because it is not
present in the headers, or because the source is split into many files), this is undefined.
OptionalvolumeThe volume of the point cloud.
Note: if the source cannot provide a volume (for example, because it is not present in the
headers, or because the source is split into many files), this is undefined. In this case,
clients should use the volume of the root node in the hierarchy.
Contains lightweight metadata about the source, such as point count.