Package rosgraph :: Package impl :: Module graph

Module graph

Classes
	BadNode Data structure for storing info about a 'bad' node
	EdgeList Data structure for storing Edge instances
	Edge Data structure for representing ROS node graph edge
	Graph Utility class for polling ROS statistics from running ROS graph.

Functions

topic_node(topic)
In order to prevent topic/node name aliasing, we have to remap topic node names.

source code

node_topic(node)
Inverse of topic_node

source code

edge_args(start, dest, direction, label)
compute argument ordering for Edge constructor based on direction flag

source code

Variables
	logger = `logging.getLogger('rosgraph.graph')`
	__package__ = `'rosgraph.impl'`

Function Details

topic_node(topic)

source code

In order to prevent topic/node name aliasing, we have to remap topic node names. Currently we just prepend a space, which is an illegal ROS name and thus not aliased.

edge_args(start, dest, direction, label)

source code

compute argument ordering for Edge constructor based on direction flag

Parameters:

direction, str - 'i', 'o', or 'b' (in/out/bidir) relative to start
start, str - name of starting node
start, dest - name of destination node