Do you also calculate a simulation step afterwards? The screenshot is only
taken before the next step (see
https://github.com/eclipse/sumo/issues/6153
<https://github.com/eclipse/sumo/issues/6153> )
Regards
Mirko
-----Original-Nachricht-----
Betreff: [sumo-user] TraCI GUI Screenshot
Datum: 2019-10-30T14:58:25+0100
Von: "Marcus Müller" <[email protected]>
An: "Sumo project User discussions" <[email protected]>
Dear Sumo-Experts,
it looks like the TraCI Api for creating a screenshot has changed without
the change being documented.
According to
https://sumo.dlr.de/docs/TraCI/Change_GUI_State.html
<https://sumo.dlr.de/docs/TraCI/Change_GUI_State.html>
the function still expects the arguments "view ID" and "filename". If I use
TraCI4Matlab to send these to Arguments, I receive the error message that a
"compound object" is expected by TraCI. Checking the C++ Code unveils that
the arguments filename, height and width now seem to be mandatory. I
changed the TraCI4Matlab interface in order to send a compound object
including all three arguments. Now I don't get an error message anymore and
my code runs through, but still no screenshot is created.
Can you please provide an example of how to create a screenshot from Matlab
or Python? I am running on a two weeks old nightly build of SUMO.
Many thanks in Advance,
Marcus
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