Re: [sumo-user] TraCI - Dynamical routing decision

[Enrico G. <enr...@gm...>]

The vehicles need a route of at least 2 adjacent edges (the departure
one and the arrival one), because a vehicle disappears when it
"touches" the last edge.
Best regards,
Enrico


2011/10/26 Marco G. <asu...@gm...>:
> Thank you Enrico.
> Just the last question: should I pass to sumo the full route file, with the
> full path for each vehicle or just, let's say, the first edge of each
> vehicle and then dynamically assign the route?
> BR,
> Marco
>
>
>
> On 10/26/2011 12:16 PM, Enrico Gueli wrote:
>>
>> Hello Marco,
>> with the "Get Lane Variable" command you can read the "links"
>> variable, that will tell you which lanes follow a lane. Along with the
>> "id list" command, you can build the network topology. AFAIK it's not
>> necessary to also work with edges or junctions.
>> I think you can obtain the best path between two lanes with the
>> "Distance request" command:
>>
>> http://sourceforge.net/apps/mediawiki/sumo/index.php?title=TraCI/Environment-related_commands#Command_0x72:_Distance_Request
>>
>> Best regards,
>> Enrico
>>
>> 2011/10/26 Marco G.<asu...@gm...>:
>>>
>>> Hello Daniel,
>>>
>>> thanks for the quick response.
>>> Yes, I had already found the API I need here
>>>
>>> http://sourceforge.net/apps/mediawiki/sumo/index.php?title=TraCI/Change_Vehicle_State
>>> but I was wondering about how to efficiently gather the map information
>>> (edges, junctions and so on) and build a graph starting from that.
>>> Should I directly patch SUMO instead of write that code into my OMNeT
>>> simulator?
>>> Which is the module in SUMO in charge of calculating the best path
>>> between two points?
>>> Best Regards,
>>> Marco
>>>
>>> On 10/26/2011 08:58 AM, Daniel Krajzewicz wrote:
>>>>
>>>> Hello Marco,
>>>>
>>>> You may convert an OSM map using netconvert, see
>>>>
>>>> http://sourceforge.net/apps/mediawiki/sumo/index.php?title=Networks/Import/OpenStreetMap.
>>>> You should keep in mind that you will need some time to make it usable.
>>>>
>>>> For vehicle routing, you should use TraCI, see:
>>>> http://sourceforge.net/apps/mediawiki/sumo/index.php?title=TraCI. It
>>>> offers several ways to set edge weights for a vehicle and force a
>>>> rerouting. You have to check on which edge the vehicle currently is by
>>>> yourself.
>>>>
>>>> sincerely,
>>>> Daniel
>>>>
>>>> 2011/10/25 Marco G.<asu...@gm...
>>>> <mailto:asu...@gm...>>
>>>>
>>>>     Hi,
>>>>     I'm working on a automotive navigation system like TomTom for
>>>> OMNeT++
>>>>     using TraCI.
>>>>     Is there any way for deciding the route of a vehicle just at run
>>>> time?
>>>>     I would like to be able of specifying just the first edge for a
>>>>     vehicle
>>>>     and then calculate the full best route as soon as the vehicle
>>>>     enters the
>>>>     network.
>>>>     In order to calculate the best path I need to read and store the
>>>> full
>>>>     map as well (it will be an OSM map).
>>>>     Is there any API that allows me to read the full map, run a shortest
>>>>     path algorithm on it, and then provide the updated route to the
>>>>     vehicle
>>>>     at each edge-change?
>>>>     Thanks in advance.
>>>>     Marco
>>>>
>>>>
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>>>
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>>
>>
>
>



-- 
Enrico