Re: [sumo-user] Joining junctions that are close to each other in a non-uniform way

[Karol S. <kar...@gm...>]

Jakob,
  With the new nodes file syntax no one needs to practice 'dark art' anymore
:-) Thanks a lot for the new feature!

Cheers,
--
Karol Stosiek
Koło Studentów Informatyki
Instytut Informatyki UWr

www.kstosiek.com


On Tue, Aug 23, 2011 at 9:06 AM, Jakob Erdmann
<nam...@go...>wrote:

> Dear Karol,
> what you're asking for is controlling the shape of the junction
> itself. Yes, this is possible but it's somewhat of a 'dark art' (-:
> The plain edge files allow setting the shape attribute to a list of
> coordinates (i.e. "23.0,42.0 3.1,4.1 5.9,2.6"). If you build the
> network using the option --plain.keep-edge-shape these will be used
> instead of the actual junction coordinate. If you use the
> edge-geometries of the original 4-junction network the generated
> junction shape should be a nice square instead of an ugly blob (This
> is how junctions.join does it).
>
> regards,
> Jakob
>
> 2011/8/22 Karol Stosiek <kar...@gm...>:
> > Jakob,
> >   The plain file format is quite readable and understandable, but it
> seems
> > that I see no nice way to great the junction of the size I want. I'd be
> glad
> > if you could give me a hint on how to turn the initial set of junctions
> (see
> > intersection1.png) into a big, single junction (see intersection2.png).
> > Connecting all of the four roads in one single point results in a
> > not-so-nice blob in the middle of the intersection (see
> intersection3.png).
> > Should I leave it like that or can I somehow achieve situation presented
> in
> > intersection2.png?
> > Thanks a lot in advance,
> > --
> > Karol Stosiek
> > Koło Studentów Informatyki
> > Instytut Informatyki UWr
> >
> > www.kstosiek.com
> >
> >
> > On Sun, Aug 21, 2011 at 9:50 AM, Karol Stosiek <kar...@gm...>
> > wrote:
> >>
> >> Jakob,
> >>   Thanks a lot! I'll try to work with the plain edge/node files and see
> if
> >> I'm able to cope with them.
> >> Cheers,
> >> --
> >> Karol Stosiek
> >> Koło Studentów Informatyki
> >> Instytut Informatyki UWr
> >>
> >> www.kstosiek.com
> >>
> >>
> >> On Sun, Aug 21, 2011 at 9:45 AM, Jakob Erdmann
> >> <nam...@go...> wrote:
> >>>
> >>> Dear Karol,
> >>> we have already suspected that  --junctions.join needs more
> >>> fine-tuning. I'm planning on extending the interface in the
> >>> (hopefully) near future. Probably some form of inclusing/exclusion
> >>> lists. That way it should be possible to pick a join-dist that fits
> >>> the average case and than deal with the inevitable outliers on either
> >>> side.
> >>>
> >>> In regards to fine-tuning the network by hand, I would discourage
> >>> editing the net.xml. The recommended way is to output plain-edge and
> >>> plain-node files, edit those and then rebuild the network. You can
> >>> create  plain files when importing OSM but you can also reconstruct
> >>> them from a net.xml.
> >>> The plain files should be easy to handle. Simply remove undesired
> >>> nodes and rewire the edges as you see fit.
> >>>
> >>> regards,
> >>> Jakob
> >>>
> >>> 2011/8/21 Karol Stosiek <kar...@gm...>:
> >>> > Hello again,
> >>> >  I forgot to mention that I'm using OSM maps as map source. If I need
> >>> > to
> >>> > merge the junctions by hand, please provide information on, for
> >>> > example,
> >>> > invariants that need to be kept in the XML file. Thanks a lot!
> >>> >
> >>> > Cheers,
> >>> > --
> >>> > Karol Stosiek
> >>> > Koło Studentów Informatyki
> >>> > Instytut Informatyki UWr
> >>> >
> >>> > www.kstosiek.com
> >>> >
> >>> >
> >>> > On Sat, Aug 20, 2011 at 5:55 PM, Karol Stosiek
> >>> > <kar...@gm...>wrote:
> >>> >
> >>> >> Hi all,
> >>> >>    I'm working on a map on which I want to join junctions that are
> >>> >> close to
> >>> >> each other (see --junctions.join in netconvert options), but the
> >>> >> maximum
> >>> >> distance (as in --junctions.join-dist) for different areas of the
> city
> >>> >> should be different. For example: if I set maximum joining distance
> to
> >>> >> less
> >>> >> than 20, then there exists a pair of junctions that I want to be
> >>> >> merged, but
> >>> >> they are too far away for each other (the distance between them is
> >>> >> more than
> >>> >> 20) and they don't get merged. On the other hand, if I set the
> maximum
> >>> >> joining distance to more than 20, then there exists a pair of
> >>> >> junctions that
> >>> >> should not be merged, but they are - the distance between them is
> >>> >> smaller
> >>> >> than 20. Is there any neat way to achieve what I want to achieve or
> do
> >>> >> I
> >>> >> have to edit the xml files by hand? All suggestions are very
> welcome.
> >>> >>
> >>> >> Thanks a lot for your help,
> >>> >> --
> >>> >> Karol Stosiek
> >>> >> Koło Studentów Informatyki
> >>> >> Instytut Informatyki UWr
> >>> >>
> >>> >> www.kstosiek.com
> >>> >>
> >>> >
> >>> >
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