Follows the patterns set by the message_filters package to implement a filter which only passes messages through once there is transform data available
A class to keep a sorted linked list in time This builds and maintains a list of timestamped data. And provides lookup functions to get data out as a function of time
This class provides an easy way to publish coordinate frame transform information. It will handle all the messaging and stuffing of messages. And the function prototypes lay out all the necessary data needed for each message
