[ros-users] Question about subscribing a message at any prefered time

[Josh Faust]

Sure, but it's not going to work at 5ms intervals.

Josh

On Fri, Aug 27, 2010 at 2:45 PM, Blaise Gassend <blaise at willowgarage.com>wrote:

> Isn't there a method to get just a single message. It is probably
> inefficient, as it will involve plenty of subscribe/unsubscribes, but
> might serve Keisuke's purposes.
>
> On Fri, Aug 27, 2010 at 1:24 PM, Josh Faust <jfaust at willowgarage.com>
> wrote:
> > There isn't currently a way to poll messages (though it's on our
> > roadmap: http://www.ros.org/wiki/ROS/Roadmap).  If you just want to
> throttle
> > it to 5ms though, you can use the throttle node in
> > topic_tools: http://www.ros.org/wiki/topic_tools/throttle
> > Josh
> >
> > 2010/8/26 <ros_user at yahoo.co.jp>
> >>
> >> Hi, all
> >>
> >> Is there a way to subscribe newest msg (not srv) at any prefered time?
> >> (like client node)
> >> I would like to subscribe a specific message by every 5ms.
> >> I know it is possible to realize such polling with srv, but
> Service-Client
> >> node allows only srv not msg.
> >> How can I realize such polling with msg?
> >>
> >> Thanks in advance,
> >>
> >> Keisuke
> >>
> >>
> >>
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