Re: [sumo-user] Conversion of x,y coordinates to Edge ID

[Niel de W. <nd...@cs...>]

Hi Imran,

I think you might be able to use the edges' shape attribute to determine
the edge(it is a series of coordinates defining the shape of the edge),
but I don't know of a command that returns the shape, so you'll have to
read it from the .net.xml file. Try using tool/lib/sumonet.py for that.
Then you'll have to compare the coordinates of the accident with those
of the shape, and find a close match.

Just my two cents'

niel

On Sat, 2010-10-23 at 09:13 +0200, Daniel Krajzewicz wrote:
> Dear Imran,
> 
> no. And I also think that this would be not a proper solution.
> I think the best would be to
> 
> - get the broken down vehicle's position, compute the according edge somewhere
> 
> - give some vehicles this edge as their new destination (Command 0xc4:
> Change Vehicle State/Variable change target (0x31), see
> http://sourceforge.net/apps/mediawiki/sumo/index.php?title=TraCI/Change_Vehicle_State)
> 
> - maybe give them additionally a new route or reroute them using new
> weights (change target already computes a new route in fact).
> 
> 
> I think you have to compute the edge using from the coordinates by
> yourself. Sorry, I do not have a code snipplet for this, here.
> 
> sincerely,
> Daniel
> 
> 2010/10/22 Imran khan <imr...@gm...>:
> > Hi,
> >
> > Currently I'm using TraCI with NS-2 to model the movement of vehicles in
> > case of an accident on a road. The 'commandChangeTarget' requires edge ID to
> > change the target of vehicles, but in NS-2 only x,y coordinates can be
> > obtained. The idea is to broadcast the location of accident vehicle and make
> > some vehicles (not all) move towards it location. Is there any possibility
> > to move vehicles on edges while giving them X,Y coordinates to change their
> > target?
> >
> >
> > --
> > Best Regards,
> >
> > Imran Khan
> >
> > 1- Centre of Research in Networks and Telecom (CoReNeT) - M. A. Jinnah
> > University, Islamabad, Pakistan - http://www.corenet.org.pk
> > *PAK: *+92-300-539-7149
> >
> > 2- École d'Ingénieurs *Télécom ParisTech, **D**épartement Informatique et R*
> > *éseaux (INFRES)*,*46, Rue de Barrault, Paris, France*
> > *FR: *+33 6 10 91 00 63
> >
> > *WEB: *http://jinnah.academia.edu/ImranKhan
> > http://www.google.com/profiles/imrankhan1984#about
> > ------------------------------------------------------------------------------
> > Nokia and AT&T present the 2010 Calling All Innovators-North America contest
> > Create new apps & games for the Nokia N8 for consumers in  U.S. and Canada
> > $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing
> > Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store
> > http://p.sf.net/sfu/nokia-dev2dev
> > _______________________________________________
> > sumo-user mailing list
> > sum...@li...
> > https://lists.sourceforge.net/lists/listinfo/sumo-user
> >
> 
> ------------------------------------------------------------------------------
> Nokia and AT&T present the 2010 Calling All Innovators-North America contest
> Create new apps & games for the Nokia N8 for consumers in  U.S. and Canada
> $10 million total in prizes - $4M cash, 500 devices, nearly $6M in marketing
> Develop with Nokia Qt SDK, Web Runtime, or Java and Publish to Ovi Store 
> http://p.sf.net/sfu/nokia-dev2dev
> _______________________________________________
> sumo-user mailing list
> sum...@li...
> https://lists.sourceforge.net/lists/listinfo/sumo-user

-- 
niel de wet

I forfeited my life, I counted the cost - and forsook it for a cross