Re: [ros-users] Cturtle (SVN): static_transform_publisher do…

There were some roscpp changes that are exposing gaps in test coverage,
especially wrt command-line tools.

The specific change is that ros::Time::now() now throws an exception if it's
used before roscpp knows if simulated time is in use (to do so it needs to
contact the master and check the /use_sim_time parameter). This makes what
were difficult to track down bugs (caused by Time::now() initially returning
wall time and then jumping to simulation time) into easy ones, but has
broken some things in the process.

Josh

2010/6/17 Dejan Pangercic <dejan.pangercic@gmail.com>

> Dear all,
>
> I've noticed this very same case in multiple places (e.g. pcl, tf) in
> ros latest install.
> Could anyone maybe please explain what is it going on?
>
> thx, D.
>
> 2010/6/17 von Wichert, Georg <Georg.Wichert@siemens.com>:
> > Hi,
> >
> > static_transform_publisher on startup complains about the usage of
> ros::Time
> > before a call to ros::start or the creation of the first node handle. A
> fix
> > (maybe not the correct one?) that at least seems to solve the startup
> > problem can be found below.
> >
> > Best,
> >
> > Georg
> >
> >

> > Index: tf/src/static_transform_publisher.cpp
> > ===================================================================
> > --- tf/src/static_transform_publisher.cpp       (revision 30325)
> > +++ tf/src/static_transform_publisher.cpp       (working copy)
> > @@ -66,7 +66,8 @@
> > {
> >    //Initialize ROS
> >    ros::init(argc, argv,"static_transform_publisher",
> > ros::init_options::AnonymousName);
> > -
> > +  ros::start();
> > +
> >    if(argc == 11)
> >    {
> >      ros::Duration sleeper(atof(argv[10])/1000.0);

> >
> >
> > ---
> >
> > Dr. Georg von Wichert
> >
> > Siemens AG
> > Corporate Technology
> > Autonomous Systems
> >
> > 80200 Munich
> >
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> > Fax: + 49 89 636 41423
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> >
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> Hiesinger,
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> > Solmssen; Sitz der Gesellschaft: Berlin und München, Deutschland;
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>
> --
> MSc. Dejan Pangercic
> PhD Student/Researcher
> Intelligent Autonomous Systems Group
> Technische Universität München
> Telephone: +49 (89) 289-26908
> E-Mail: dejan.pangercic@cs.tum.edu
> WWW: http://ias.cs.tum.edu/people/pangercic
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