Classes
class	generator

class	rosapi

Functions
	make_argparser ()

	plural (word, items)

	process_args (args)

	run (args)

	take_sample (population, k)

	wildcard_to_regex (text, end=True)

Variables
dict	ARGUMENTS
	Configuration for argparse, as {description, epilog, args: [..], groups: {name: [..]}}.

str	NAME = "generate_msgs"
	Name used for node.

	rospy = None

	runargs = process_args(make_argparser().parse_args())

Detailed Description

Generates random ROS messages and publishes them to live topics.

Usage:

    generate_msgs.py [TYPE [TYPE ...]]
                     [--no-type TYPE [TYPE ...]]
                     [--max-count NUM]
                     [--max-per-topic NUM]
                     [--max-topics NUM]
                     [--topics-per-type NUM]
                     [--interval SECONDS]
                     [--publish-prefix PREFIX]
                     [--publish-suffix SUFFIX]
                     [--no-latch]
                     [--verbose]
                     [--option KEY=VALUE [KEY=VALUE ...]]

Topic names default to "/generate_msgs/type", like "/generate_msgs/std_msgs/Bool".

Supports both ROS1 and ROS2, version detected from environment.

Stand-alone script, requires ROS1 / ROS2 Python libraries.
ROS1 requires ROS master to be running.

------------------------------------------------------------------------------
This file is part of grepros - grep for ROS bag files and live topics.
Released under the BSD License.

@author      Erki Suurjaak
@created     05.02.2022
@modified    09.02.2022
------------------------------------------------------------------------------

Function Documentation

◆ make_argparser()

make_argparser ( )

Returns a populated ArgumentParser instance.

Definition at line 396 of file generate_msgs.py.

◆ plural()

plural	(	word,
		items
	)

Returns "N words" or "1 word".

Definition at line 405 of file generate_msgs.py.

◆ process_args()

process_args ( args )

Converts or combines arguments where necessary, returns args.

@param   args  arguments object like argparse.Namespace

Definition at line 430 of file generate_msgs.py.

◆ run()

run ( args )

Generates messages until Ctrl-C or end condition reached.

Definition at line 464 of file generate_msgs.py.

◆ take_sample()

take_sample	(	population,
		k
	)

Returns a list of k randomly chosen elements from population.

Definition at line 411 of file generate_msgs.py.

◆ wildcard_to_regex()

wildcard_to_regex	(	text,
		end = `True`
	)

Returns plain wildcard like "foo*bar" as re.Pattern("foo.*bar", re.I).

@param   end  whether pattern should match until end (adds $)

Definition at line 420 of file generate_msgs.py.

Variable Documentation

◆ ARGUMENTS

dict ARGUMENTS

Configuration for argparse, as {description, epilog, args: [..], groups: {name: [..]}}.

Definition at line 65 of file generate_msgs.py.

◆ NAME

str NAME = "generate_msgs"

Name used for node.

Definition at line 129 of file generate_msgs.py.

◆ rospy

rospy = None

Definition at line 51 of file generate_msgs.py.

◆ runargs

runargs = process_args(make_argparser().parse_args())

Definition at line 565 of file generate_msgs.py.

Classes

Functions

Variables