The <location> attribute looks just as expected and there is no reason why
streets should disappear.
The only thing I can think of is that you are loading a gui settings file
with old x,y view values.
What happens when you use the vehicle locator in the gui to jump to a
vehicle position (https://sumo.dlr.de/wiki/SUMO-GUI#Locating_Objects)?

Am Fr., 26. Apr. 2019 um 09:08 Uhr schrieb <[email protected]>:

> Hi Jakob,
>
> <net version="0.27" xsi:noNamespaceSchemaLocation="
> http://sumo.dlr.de/xsd/net_file.xsd";>
> <location netOffset="0.00,0.00"
> convBoundary="407915.71,5663494.88,414128.77,5665877.90"
> origBoundary="13.680236,51.115656,13.773601,51.139152"
> projParameter="+proj=utm +zone=33 +ellps=WGS84 +datum=WGS84 +units=m
> +no_defs"/>
>
> then there is a lot of definition, like junctions, edges...
>
> </net>
>
> and my new net file is (with your netconvert --offset command):
>
> <net version="1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/net_file.xsd";>
> <location netOffset="-407915.71,-5663494.88"
> convBoundary="0.00,0.00,6213.06,2383.02"
> origBoundary="13.680236,51.115656,13.773601,51.139152"
> projParameter="+proj=utm +zone=33 +ellps=WGS84 +datum=WGS84 +units=m
> +no_defs"/>
>
> then there is a lot of definition, like junctions, edges....
>
> </net>
>
> Thanks!
>
> > Gesendet: Donnerstag, 25. April 2019 um 21:05 Uhr
> > Von: "Jakob Erdmann" <[email protected]>
> > An: "Sumo project User discussions" <[email protected]>
> > Betreff: Re: [sumo-user] Still shaking vehicle movements in the SUMO GUI
> >
> > Please provide the input file that was used in place of 'old.net.xml'
> >
> > Am Do., 25. Apr. 2019 um 19:52 Uhr schrieb <[email protected]>:
> >
> > > Hi guys,
> > >
> > > so I asked some weeks ago something about my problem of the "shaky"
> > > movements of the vehicles. The reason you say were the large x,y
> > > coordinates and the rounding errors of the floats. Your suggestion with
> > > using >> netconvert -s old.net.xml -o new.net.xml
> > > --offset.disable-normalization false << in the command line didn't work
> > > out. It only makes my streets and vehicles disappear in the SUMO GUI.
> Is
> > > there any other chance to get rid of the shaking?
> > >
> > > Thanks
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