This ROS node subscribes to /tf_static, collects all the transforms that are ever published there, and re-sends a
message that contains not only the transforms from the last publisher, but all transforms ever encountered.
This is a workaround for e.g. geometry2#181, or for anybody else who needs to have multiple static transform publishers in the system.
static\_transform\_mux/tf_static: The static transforms.~publisher_topic (tf2_msgs/TFMessage latched): Again, the static transforms. Special care
is taken so that this node does not react to its own messages.ready (std_msgs/Bool latched): This message is sent (and latched) once the first message on /tf_static is
published by this node, so that other nodes that rely on this node's operation know that it has been brought up.~update_only_with_newer (bool, defaults to False): If set to True, only transforms with newer timestamps can
substitute an already cached transform (otherwise, the latest received tranform is used.)~forbidden_callerid_prefix (str or None, defaults to None): This parameter can contain a prefix of
callerids that will additionally be ignored by the /tf_static callback.
Using this parameter is required if you transmit /tf_static over some non-ROS connection which changes or
discards the callerid (e.g. when using nimbro_network). ~publisher_topic (str, defaults to /tf_static): Which topic to publish to. This can be the same topic as the
input.