Thank you Jakob! I wish I had thought of that! Alas, I already
implemented it with net.getShortestPath.
However, now that I've generated the 2000 route files, I am facing a
similar problem with simulating each of them. I want to simulate each
of them iteratively, without sumo re-loading the network each time. Is
it possible?
Regards,
Chris
On Tue, 9 Mar, 2021 at 08:59, Jakob Erdmann <namdre.s...@gmail.com>
wrote:
Hello,
The fastest and most efficient): call duarouter once will all the
trip files.
duaIterate does the same thing using subprocess.call but it does this
seperately for each file.
The only downside is that you have to use your own code the seperate
the trips into separate files (if needed) since duarouter will create
a single output file.
Note, that net.getShortestPath only considers distances not speeds.
This could lead to unexpected routes if there are some slow shortcuts
in your network.
You can also build routes using traci.simulation.findRoute
regards,
Jakob
Am Mo., 8. März 2021 um 13:06 Uhr schrieb Chris Abraham
<chrisb...@gmail.com <mailto:chrisb...@gmail.com>>:
After scouring the docs the whole day, the only solution I can think
of is to use getShortestPath() from sumolib.net.Net
<https://sumo.dlr.de/daily/pydoc/sumolib.net.html#Net>, and build
arou.xmlfile from its outputs. Does that sound possible? I was
hoping for an easier way. Also I wanted to double check that the
function is maintained before I start coding.
Chris
On Mon, 8 Mar, 2021 at 07:37, Chris Abraham <chrisb...@gmail.com
<mailto:chrisb...@gmail.com>> wrote:
Hello all,
I currently have around 2000 trip files, each describing the trip
that a vehicle makes via a series of stops, as follows:
<trip id="Taxi1_Day1" type="eTaxi" depart="53564" from="173819953"
to="802374502#1">
<stop lane="173819953_0" until="53565"/>
<stop lane="68612608#0_0" until="53650"/>
⋮
</trip>
Each trip file has around 750 stops. My aim is to generate a
simulation corresponding to each trip file, which routes between
the stops of that trip file. All the trip files correspond to the
same network file, which is around 480 MB big. I want to do the
route generation from Python preferably.
My current approach is to run duaIterate.main()
(from$SUMO_TOOLS/assign) for each of the trips. However, this is
taking very long. I think the problem is thatduaIterate.main()
takes a lot of time to load the network each time. It also takes
almost all of my RAM to load the network, so I can't run the
process for multiple trip files concurrently. It would be great
ifduaIterate.main() provided a way to pass in the network /object/
(i.e. sumolib.net.Net <http://sumolib.net.net/>), rather than the
/path/ to the network file.
If I could do that, I think it would take much quicker, and I could
run multiple duaIterate processes concurrently, without running out
of ram. Do you know if it is possible, or if there is a better
approach?
Regards,
Chris
_______________________________________________
sumo-user mailing list
sumo-user@eclipse.org <mailto:sumo-user@eclipse.org>
To unsubscribe from this list, visit
<https://www.eclipse.org/mailman/listinfo/sumo-user>
_______________________________________________
sumo-user mailing list
sumo-user@eclipse.org
To unsubscribe from this list, visit
https://www.eclipse.org/mailman/listinfo/sumo-user
