[OSGeo-Discuss] online open source polygon mapping, like OSM?
Nitin Gadia
nittyjee at gmail.com
Thu Aug 4 10:38:12 EDT 2011
Interesting points.
I have no credibility to begin with, but like you, I'm learning, and I care
less about my credibility than learning this from people who do :)
All I can say at this time is, yes, it seems that time functionality is
being developed now with the open source GIS tools. This is a nice article
that Noli Sicad gave earlier in the thread:
WMS-T Support in Geoserver and Mapserver
http://underdark.wordpress.com/2011/06/10/wms-t-support-in-geoserver-and-mapserver/
nitin
On Thu, Aug 4, 2011 at 4:59 AM, Carsten Troelsgaard
<troelsgaard53c at live.dk>wrote:
> Hej Nitin
>
> I'll risk my credibillty on a comment. I grasp little of GIS, but I've
> spent a lot of attention on visualizing data and 'painting on the screen'.
> I've got an impression that time-animations belong to a next generation GIS,
> but don't take my word for it. I expect that the code-changes needed to
> animate a 2d polygon lies very deep in the code structure.
> Ok, say I have what you have on your pc .. I would look for the
> polygon-data. Is it accessible?
> I know of one set of polygon-data, and that's the esri shapefile format.
> I've been working on accessing that format through code, but I'm not all
> there yet.
> Next question: how/where are the changes of data? I mean, do you have ie
> two sets as a 'before' and an 'after', or do you have a time-dependant
> algorithm that can be used on the initial data to propagate it forward
> (probably not). How is your setup on that front?
> The 'painting-mashinery' of your pc may read directly on the data, so there
> could be problems on syncronisation if you start to write to the same data -
> I could imagine that this is where the real problems are, becourse the
> transmission from the data to the screen may need to be redirected to
> somewhere else (to the changed data) or wrapped up in a thread-safe way.
> That's a problem that's been solved before, but probably not without
> altering the original code .. it's on the edge of my experience.
> That said, I'm very little acquainted with any gis-tools, so don't take my
> comment for more than it is
>
> Kindly
> Carsten
> > Subject: Re: [OSGeo-Discuss] online open source polygon mapping, like
> OSM?
> > From: tmitchell at osgeo.org
> > Date: Wed, 3 Aug 2011 14:01:26 -0700
> > To: discuss at lists.osgeo.org
>
> >
> > Hi Nitin, I'd suggest you focus only on running something on your own PC
> for now so you can test it out without worrying about hosting providers.
> Then again, maybe someone on here knows of some public services you might
> use, but I'm not familiar with any.
> >
> > For getting started I recommend you check out some of the workshops from
> last year's FOSS4G - most of them have downloads available of the course
> material and software, specifically for newcomers like yourself. Check out:
> http://2010.foss4g.org/workshop.php
> >
> > Hope that helps!
> >
> > Tyler
> >
> > On 2011-08-03, at 1:44 PM, Nitin Gadia wrote:
> >
> > > Thanks for that tutorial. I'll need to first have administrative access
> to both GeoServer and PostgreSQL running on a server.
> > >
> > > So, I'm thinking of setting up, as I mentioned, both mapserver via
> geomoose and geoserver.
> > >
> > > I am new to all of this, so I'm going to send questions to the
> individual mailing lists to get help setting up.
> > >
> > > Does anyone think there is a way I can just use the tools through a
> server providing the tools as a free service?
> > > If I should just go ahead and install everything on my own server, I
> was thinking of setting up a server through godaddy, a third-party service.
> Is this a bad idea? I don't want to have any problems, and they're good with
> customer support. I have no experience setting up a server on my own...
> > >
> > > I'll send links to the threads I start on the geoserver and geomoose
> mailing lists.
> > >
> > > thanks,
> > > nitin
> > >
> > > On Tue, Aug 2, 2011 at 8:32 PM, Noli Sicad <nsicad at gmail.com> wrote:
> > > Here's a tutorial for OpenLayers WFS-T Using a GeoServer Hosted PostGIS
> Layer.
> > >
> > > "A WFS-Transaction can be used to add, remove or modify the features
> > > that are loaded, and most importantly allows for the changes to be
> > > committed back and saved to the parent source."
> > >
> > >
> http://www.gistutor.com/openlayers/22-advanced-openlayers-tutorials/47-openlayers-wfs-t-using-a-geoserver-hosted-postgis-layer.html
> > >
> > > Noli
> > >
> > > On 8/3/11, Nitin Gadia <nittyjee at gmail.com> wrote:
> > > > I just had a good conversation with Tyler Mitchell at OSGeo.
> > > >
> > > > I am going to dive in and set up a server with openlayers and try
> different
> > > > tools for the server layer.
> > > >
> > > > What I need is something that deals well with WFS-T and WMS-T.
> > > > WFS-T is for adding and editing features, and WMS-T is for requesting
> maps
> > > > with a time component.
> > > >
> > > > Noli Sicad above gave a great overview article about WMS-T, which
> mapserver
> > > > has developed and geoserver is working on:
> > > >
> http://underdark.wordpress.com/2011/06/10/wms-t-support-in-geoserver-and-mapserver/
> > > >
> > > > I am going to do some research into WFS-T.
> > > > Any thoughts?
> > > >
> > > > Looks like geoserver and mapserver handle that, as well as geomajas,
> > > > deegree, mapfish, and others.
> > > >
> > > > I'm going to dive right in and set up both mapserver (perhaps using
> > > > geomoose) and geoserver\
> > > > I'll be needing help setting it all up, so I'll probably be asking
> the
> > > > individual mailing lists for help with that along the way.
> > > >
> > > > ... and by the way, there's a good chance I will attend FOSS4G,
> perhaps I
> > > > can talk to people there and attend a related workshop.
> > > >
> > > >
> > > >
> > > > Any thoughts about what components should be used, and the advantages
> and
> > > > disadvantages of each?
> > > >
> > > >
> > > >
> > > > Nitin
> > > >
> > > >
> > > >
> > > >
> > > > On Mon, Aug 1, 2011 at 1:50 PM, Nitin Gadia <nittyjee at gmail.com>
> wrote:
> > > >
> > > >> fantastic!!
> > > >> thanks!
> > > >> Hopefully they will become part of the team :)
> > > >>
> > > >> This is just for countries - imagine every road, city, ethnic and
> > > >> linguistic group, the flow of trade, events such as battles and
> wars,
> > > >> etc...
> > > >> and animated...
> > > >>
> > > >> There is so much out there, it all needs to kind of put together.
> > > >>
> > > >>
> > > >> nitin
> > > >>
> > > >>
> > > >> On Mon, Aug 1, 2011 at 12:51 PM, Wladimir Szczerban
> > > >> <bolosig at gmail.com>wrote:
> > > >>
> > > >>> Hi Nitin,
> > > >>>
> > > >>> Maybe you can contact those who made this map.
> > > >>> http://geacron.com/home-es/?lang=es&sid=GeaCron860293
> > > >>>
> > > >>> Perhaps you can get some collaboration.
> > > >>>
> > > >>> Bolo
> > > >>>
> > > >>>
> > > >>> 2011/8/1 Nitin Gadia <nittyjee at gmail.com>
> > > >>>
> > > >>>> Great!!
> > > >>>>
> > > >>>> So, I went forward and started a page on the OSGeo Wiki around the
> > > >>>> project:
> > > >>>>
> http://wiki.osgeo.org/wiki/Open_Online_Polygon_Mapping_Communities
> > > >>>>
> > > >>>> *Does anyone else know of any other open polygon mapping effort or
> > > >>>> tools?
> > > >>>> *It is very important that the full breadth of the efforts are
> > > >>>> inventoried before i/we go forward with this.*
> > > >>>> *
> > > >>>> So far we have:
> > > >>>>
> > > >>>> *Openlayers
> > > >>>> *Open Moose (uses openlayers)
> > > >>>>
> > > >>>> WMS-T:
> > > >>>> *MapServer
> > > >>>> *GeoSolutions
> > > >>>>
> > > >>>> There is also:
> > > >>>> *Geocommons
> > > >>>> *click2map
> > > >>>>
> > > >>>>
> > > >>>> Anything else??
> > > >>>> Feel free to respond here or write on the wiki page :)
> > > >>>>
> > > >>>>
> > > >>>> Thanks,
> > > >>>> Nitin
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>>
> > > >>>> On Fri, Jul 29, 2011 at 8:22 PM, Noli Sicad <nsicad at gmail.com>
> wrote:
> > > >>>>
> > > >>>>> > Someone also told me you can do polygons in openstreetmap
> (parking
> > > >>>>> lots,
> > > >>>>> > buildings, etc.). Does anyone know how to do this? I can't seem
> to be
> > > >>>>> able
> > > >>>>> > to figure it out...
> > > >>>>>
> > > >>>>> Vector editing in OpenLayers (i.e. drawing points, lines and
> polygons).
> > > >>>>> http://openlayers.org/dev/examples/vector-formats.html
> > > >>>>>
> > > >>>>> You can use OSM as your basemap for the editing.
> > > >>>>>
> > > >>>>> You need Geoserver and/or Mapserver for the timeline with
> OpenLayers.
> > > >>>>>
> > > >>>>> WMS-T Support in Geoserver and Mapserver
> > > >>>>>
> > > >>>>>
> http://underdark.wordpress.com/2011/06/10/wms-t-support-in-geoserver-and-mapserver/
> > > >>>>>
> > > >>>>> Noli
> > > >>>>> _______________________________________________
> > > >>>>> Discuss mailing list
> > > >>>>> Discuss at lists.osgeo.org
> > > >>>>> http://lists.osgeo.org/mailman/listinfo/discuss
> > > >>>>>
> > > >>>>
> > > >>>>
> > > >>>> _______________________________________________
> > > >>>> Discuss mailing list
> > > >>>> Discuss at lists.osgeo.org
> > > >>>> http://lists.osgeo.org/mailman/listinfo/discuss
> > > >>>>
> > > >>>>
> > > >>>
> > > >>> _______________________________________________
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> > > >>>
> > > >>>
> > > >>
> > > >
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