[gdal-dev] GSoC 2014

[Михаил Гусев]

Thanks everyone for the responding and for some interesting ideas. I will
try to think what I can do with them.


2014-02-17 18:56 GMT+04:00 Even Rouault <even.rouault at mines-paris.org>:

> Also of potential interest :
> - Virtual Network, a module of Spatialite :
> https://www.gaia-gis.it/spatialite-2.3.0/spatialite-network-2.3.0.html
> - GraphServer : https://github.com/graphserver/graphserver/tree/master
> - OpenTripPlanner :  http://opentripplanner.com/
>
> > Mikhail,
> >
> > This is a very interesting idea.
> >
> > You might want to add specific support pgRouting which already supports
> > building graphs, creating routing topology and solving various graph
> > problem using postgis for geometry and tables for building and linking
> > the topology.
> >
> > You might also want to look at:
> >
> > https://github.com/woodbri/osrm-tools
> >    - a tool to move pgrouting data to Project-OSRM
> >
> > https://github.com/DennisOSRM/Project-OSRM
> >    - a high performance routing engine
> >
> > A tool like you are describing that can load data and prepare a graph or
> > move data between these projects would be extremely useful.
> >
> > I look forward to hearing more about your ideas.
> >
> > Thanks,
> >    -Steve Woodbridge
> >
> > On 2/17/2014 5:13 AM, Ð ÐžÑ Ð°ÐžÐ» Ð Ñ Ñ ÐµÐ² wrote:
> > > Hello everyone.
> > >
> > > I am a last year student at Moscow Power Engineering Institute, Russia.
> > > For GSoC 2014 I would like to work on networking capabilities in
> GDAL/OGR.
> > >
> > > _
> > > _
> > >
> > > _Overall idea_
> > >
> > > I would like to try to implement a universal network model. The
> > > universality of the model would reflect not only in the ability to use
> > > different GIS formats to store and transfer network data (which OGR is
> a
> > > grate basis for), but also to be able to design and simulate different
> > > types of network applications (engineering, natural, etc). I understand
> > > that it is rather ambitious to consider all possible aspects of all
> > > network types. But as a first step I would like to cover only the basic
> > > aspects, that can be generalized and to provide a â  platformâ   which
> can
> > > be used by other developers to create their own extensions which are
> > > specific to the concrete network type.
> > >
> > >
> > > _Target scope for GSoC 2014_
> > >
> > > Today none of OGR drivers supports network functionality. The idea is
> to
> > > implement a new OGR driver, which will deal with networks built over
> the
> > > spatial data. The spatial data together with the network data will be
> > > stored in one of the OGR-supported formats, which would be specified
> > > during the creation of the network.
> > >
> > > Planned features of the new driver:
> > >
> > > 1. Reading/writing data from/to the source, creating layers, editing
> > > attributes, etc (as any new OGR driver must provide);
> > >
> > > 2. The user would also be able to do the following, assuming that all
> > > the special network data is the data of the current GIS-format:
> > >
> > >
> > > - Read/Write the information about the whole network (network
> metadata);
> > >
> > > - Edit special network objects parameters such as blocking state, or
> > > direction of the flow;
> > >
> > > - Import objects from the external sources (the driver adds missing
> > > network parameters to them);
> > >
> > > - Set/unset connections among network objects;
> > >
> > > - Edit the sets of the network rules.
> > >
> > > 3. Each object in the network will have a set of relations with other
> > > objects, which are stored separately and form a network graph;
> > >
> > > 4. The whole network will have a set of rules that describes the
> > > connection possibilities of different object types in the network. The
> > > network will also have a set of rules that describes the influence of
> > > each type of object to the state of the whole network and to the other
> > > types of objects. It can also be called as a behavior of the object in
> > > the context of the network specialization (engineering purpose).
> > >
> > >
> > > _Current status_
> > >
> > > https://github.com/MikhanGusev/gnm
> > >
> > > As a matter of fact I've been working on this for a while, and I've
> > > already completed few things. Here is what I've accomplished already:
> > >
> > > 1. Complete. The driver and most of the required virtual interfaces are
> > > already implemented;
> > >
> > > 2. Complete. All data from the external source is wrapped with the
> > > network proxy and the user can edit it.
> > >
> > > 3. Currently, I'm thinking about the way, how the network graph will be
> > > stored.
> > >
> > >
> > > Best regards,
> > >
> > > Mikhail Gusev.
> > >
> > >
> > >
> > > _______________________________________________
> > > gdal-dev mailing list
> > > gdal-dev at lists.osgeo.org
> > > http://lists.osgeo.org/mailman/listinfo/gdal-dev
> > >
> >
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>
>
>
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