Re: [udig-devel] [SoC] uDig GSoC / weekly report

[Jody Garnett <jody.garnett@xxxxxxxxx>]

Can we copy this to the community wiki?

As an example the WPS work provides build instructions because that is
the current state of the project.
- http://udig.refractions.net/confluence/display/COM/WPS

The stats can data is from their website
(http://www.statcan.gc.ca/start-debut-eng.html) with a bit of the data
removed to make it smaller.

On Wed, Jul 14, 2010 at 7:51 AM, Davide <davide.savazzi@xxxxxxxxx> wrote:
> On Mon, Jul 12, 2010 at 01:02, Craig Taverner <craig@xxxxxxxxxx> wrote:
>> It would be great to see a short set of instructions on getting started
>> using the shortest path tools in udig. Perhaps you can add that to the wiki,
>> or just email the list?
>
> You can find a binary version of the plugins here:
> http://www.davidesavazzi.net/gsoc/plugins/
> Sources are on github:
> http://github.com/svzdvd/net.refractions.udig.catalog.neo4j
>
> For testing purpose I've used the shapefile statscan_rds.shp that I
> found in uDig SVN (udig-training/data).
> It's a shapefile containing MultiLineStrings, many of them are
> connected toghether (they have one equal endpoint).
>
> The first step is to import this shapefile into Neo4j.
> From uDig open the menu File -> Import and select 'Import a SHP file
> to a Neo4j Database'.
>
> In the next wizard page, select a directory containing a Neo4j Database.
> If you don't have it, select a new empty writeable directory.
>
> Select the shapefile to import and click finish.
>
> A progress bar should appear, it will take a couple of minutes to
> import 110883 geometries.
>
> Second step, open the Neo4j Database: open the menu File -> Import,
> select 'Data' and in the
> next page select 'Files'.
>
> Open the directory you've chosen for the Neo4j Database, select the
> file 'neostore.id' and click 'Open'.
>
> A new entry should appear in the Catalog window.
> If you expand it, you should see the layers contained in the Neo4j Database.
>
> Right-click on 'statscan_rds' and click on 'Add to New Map'.
>
> Now we analyze this LineStrings layer and try to create a Network:
> right-click again on 'statscan_rds' and select Operations->'Create
> Line Network'.
> A progress bar should appear in the bottom-right corner.
>
> When the network creation is finished, a new layer is created
> containing the points representing
> intersections of the LineStrings layer.
> To see this layer right click on the Neo4j Catalog and select
> Operations->Refresh.
> Now you should see a layer with the suffix 'network points'.
>
> Right-click on this new layer and click on 'Add to Current Map'.
>
> Now expand the Decoration Catalog and add 'Neo4j Network' to current map.
> This Decoration will draw the Way Points you select and the shortest
> path found by Neo4j.
>
> In the Layers panel, select the 'network points' layer.
>
> Click on the 'Add Way Point' tool and select points in the map, in the
> order in which you want to traverse them.
>
> Then click on the 'Find Path' tool. After a few seconds a path should
> appear between the selected points.
>
> Now you can select other points for another shortest path calculation.
>
>
> Regards,
> --
> Davide Savazzi
> _______________________________________________
> User-friendly Desktop Internet GIS (uDig)
> http://udig.refractions.net
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>