robot-playernav(1) General Commands Manual robot-playernav(1)NAME
robot-playernav - GUI client to control over localize and planner devices
SYNOPSIS
robot-playernav [options] <host:port> [<host:port>...]
DESCRIPTION
robot-playernav is a GUI client that provides control over localize and planner devices. It allows you to set your robots' localization
hypotheses by dragging and dropping them in the map. You can set global goals the same way, and see the planned paths and the robots'
progress toward the goals. robot-playernav can also display (a subset of) the localization system's current particle set, which may help in
debugging localization. You can think of playernav as an Operator Control Unit (OCU). robot-playernav can also be used just to view a map.
OPTIONS -fps dumprate
dump screenshots rate in Hz (default: 5Hz).
-zoom zoomlevel
initial level of zoom in the display (default: 1).
-aa {0|1}
use anti-aliased canvas for display (0 == false; 1 == true). The anti-aliased canvas looks nicer but may require more processor
cycles (default: 1).
-map map_idx
the index of the map to be requested and displayed (default: 0).
AUTHOR
Player was written by Brian Gerkey <gerkey@users.sourceforge.net> and contributors. This manual page was written by Daniel Hess for the
Debian Project.
SEE ALSO
The HTML documentation in /usr/share/doc/player/html of the robot-player-doc package.
Player May 2009 robot-playernav(1)
Check Out this Related Man Page
LWP::RobotUA(3) User Contributed Perl Documentation LWP::RobotUA(3)NAME
LWP::RobotUA - A class for Web Robots
SYNOPSIS
require LWP::RobotUA;
$ua = new LWP::RobotUA 'my-robot/0.1', 'me@foo.com';
$ua->delay(10); # be very nice, go slowly
...
# just use it just like a normal LWP::UserAgent
$res = $ua->request($req);
DESCRIPTION
This class implements a user agent that is suitable for robot applications. Robots should be nice to the servers they visit. They should
consult the /robots.txt file to ensure that they are welcomed and they should not make requests too frequently.
But, before you consider writing a robot take a look at <URL:http://info.webcrawler.com/mak/projects/robots/robots.html>.
When you use a LWP::RobotUA as your user agent, then you do not really have to think about these things yourself. Just send requests as
you do when you are using a normal LWP::UserAgent and this special agent will make sure you are nice.
METHODS
The LWP::RobotUA is a sub-class of LWP::UserAgent and implements the same methods. In addition the following methods are provided:
$ua = LWP::RobotUA->new($agent_name, $from, [$rules])
Your robot's name and the mail address of the human responsible for the robot (i.e. you) are required by the constructor.
Optionally it allows you to specify the WWW::RobotRules object to use.
$ua->delay([$minutes])
Set the minimum delay between requests to the same server. The default is 1 minute.
$ua->use_sleep([$boolean])
Get/set a value indicating whether the UA should sleep() if requests arrive too fast (before $ua->delay minutes has passed). The
default is TRUE. If this value is FALSE then an internal SERVICE_UNAVAILABLE response will be generated. It will have an Retry-After
header that indicates when it is OK to send another request to this server.
$ua->rules([$rules])
Set/get which WWW::RobotRules object to use.
$ua->no_visits($netloc)
Returns the number of documents fetched from this server host. Yes I know, this method should probably have been named num_visits() or
something like that. :-(
$ua->host_wait($netloc)
Returns the number of seconds (from now) you must wait before you can make a new request to this host.
$ua->as_string
Returns a string that describes the state of the UA. Mainly useful for debugging.
SEE ALSO
LWP::UserAgent, WWW::RobotRules
COPYRIGHT
Copyright 1996-2000 Gisle Aas.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
libwww-perl-5.65 2001-04-27 LWP::RobotUA(3)