Missing documentation and important constants on TangoServiceClientNodes #370
Description
Trying to understand the expected behavior of TangoServiceClientNode and its callback is currently very difficult and not fully documented.
Two things that I am running into now, which I can only resolve by looking at the source code of TangoRosStreamer and copying how it is implemented there:
1- Understanding what is the expected behavior of callTangoConnectService
2- How to tell if the service started successfully or not
3- What is the meaning of the status codes returned by onTangoStatus
I suggest clarifying this in the wiki and also adding the following enum as part of the TangoServicClientNode:
// Symmetric implementation to tango_ros_node.h.
enum TangoStatus {
UNKNOWN,
SERVICE_NOT_CONNECTED,
NO_FIRST_VALID_POSE,
SERVICE_CONNECTED
}