RE: Open source robot controllers

>>>>> "HB" == Herman Bruyninckx <[email protected]> writes:

I am sorry guys but I fail to see the advantage of 20sim over
Dymola. We could also write an open source viewer to Modellica. 

    HB> On Tue, 25 Sep 2001, Stramigioli, S wrote:
    >> > I thought 20sim also was prorietary, wihch makes it
    >> inyteresting but > useless for our effort.
    >> 
    >> As Dymula uses Modelica, 20sim uses Sidops which has the
    >> constructs and power port features I said before.  20sim is
    >> proprietary as Dymula, but Sidops is open and the 20sim team is
    >> busy writing a formal definition of Sidops which will be
    >> publically available.

Right same story as Modellica/Dymola. Open standard, but non-open
implemetation. 

    HB> Ok, I didn't realise this :-)

    >> Furthermore, they are planning to make a free viewer/simulator
    >> available with which you can view/simulate somebodyelse's
    >> model, but you cannot change it and save it.

Kind of an improvement, but it is not good enough for us. We need to
be able to work on this and I will NOT rely on a commercial / closed
system.

    HB> Will they allow us to write an open source version of this
    HB> viewer?  (The OverFlow project that was mentioned on the
    HB> mailinglist yesterday would be a good point to start from...

    >> So I do believe it is worth having a look at it for our
    >> purpose.
    HB> Sure! Keep us informed about when there is something
    HB> available. Or about things they would be interested in in
    HB> discussing with us.

I prefer open solutions. We need to build on this to make real
progress!

--Henrik