Sorry mate we are all volunteers here; if you really need prompt service (say
for a deadline) check out the support page for a provide in your area.
My own employer LISAsoft offers developer support ... I of course recommend
anyone listed ... here:
- http://docs.geotools.org/latest/userguide/welcome/support.html
--
Jody Garnett
On Monday, 3 October 2011 at 6:18 PM, Harshad S wrote:
> Guys,
> Please address this query and give your suggestions as soon as possible.
>
> Thank You.
> Harshad Shrikhande
> Researcher R&D
> TCS Innovations Infra Lab, Chennai
> Tata Consultancy Services
> Cell:- 7200605821
> Mailto: [email protected] (mailto:[email protected])
> Website: http://www.tcs.com
> ____________________________________________
> Experience certainty. IT Services
> Business Solutions
> Outsourcing
> ____________________________________________
>
> -----Forwarded by Harshad S/TVM/TCS on 10/03/2011 01:47PM -----
> > To: Harshad S/TVM/TCS
> > From: Harshad S/TVM/TCS
> > Date: 10/03/2011 11:43AM
> > cc: [email protected] (mailto:[email protected]),
> > [email protected]
> > (mailto:[email protected])
> > Subject: Re: [Geotools-gt2-users] Reg AStarShortestPathFinder in Geotools
> >
> > Hi,
> >
> > Just to clarify my doubt further, this is the 0th attribute of one of my
> > features -
> >
> > MULTILINESTRING ((-96.173434 29.908551, -96.17349999999999 29.908365,
> > -96.173655 29.907981999999997, -96.173874 29.90759))
> >
> > I have added these features to my FeatureGraphGenerator from which I am
> > getting the Graph.
> >
> >
> > Now, when the user selects two points on the map (say e.g (x1,y1) and
> > (x2,y2) ) , I do the following ,
> >
> > BasicXYNode b1 = new BasicXYNode();
> > b1.setCoordinate(co1); // where co1 refers to x1,y1
> > BasicXYNode b2 = new BasicXYNode();
> > b2.setCoordinate(co2); // where co2 refers to x2,y2
> >
> > Then, I give the retrieved graph and the 2 nodes to my
> > AStarShortestPathFinder to find the shortest path.
> > Please tell me if I am doing this correctly. I am eagerly awaiting for
> > suggestions.
> >
> > Thank You.
> > Harshad Shrikhande
> > Researcher R&D
> > TCS Innovations Infra Lab, Chennai
> > Tata Consultancy Services
> > Cell:- 7200605821
> > Mailto: [email protected] (mailto:[email protected])
> > Website: http://www.tcs.com
> > ____________________________________________
> > Experience certainty. IT Services
> > Business Solutions
> > Outsourcing
> > ____________________________________________
> >
> > -----Harshad S wrote: -----
> > > To: Jody Garnett <[email protected] (mailto:[email protected])>
> > > From: Harshad S <[email protected] (mailto:[email protected])>
> > > Date: 10/03/2011 10:37AM
> > > cc: [email protected]
> > > (mailto:[email protected])
> > > Subject: Re: [Geotools-gt2-users] Reg AStarShortestPathFinder in Geotools
> > >
> > > Hi,
> > >
> > > I am using the 'FeatureGraphGenerator' to store all my features(which in
> > > my case are all linesegments). Post this, I use the 'getGraph()'
> > > function to get the graph. Then, I provide this graph, the source node
> > > and dest node(both are objects of BasicXYNode class) to the AStar
> > > function. Am i doing it correctly?
> > > My primary doubt is if the nodes in the derived graph will be simple X,Y
> > > points or something else. Please clarify.
> > >
> > > Thank You.
> > > Harshad Shrikhande
> > > Researcher R&D
> > > TCS Innovations Infra Lab, Chennai
> > > Tata Consultancy Services
> > > Cell:- 7200605821
> > > Mailto: [email protected] (mailto:[email protected])
> > > Website: http://www.tcs.com
> > > ____________________________________________
> > > Experience certainty. IT Services
> > > Business Solutions
> > > Outsourcing
> > > ____________________________________________
> > >
> > > -----Jody Garnett <[email protected]
> > > (mailto:[email protected])> wrote: -----
> > >
> > > > To: Harshad S <[email protected] (mailto:[email protected])>
> > > > From: Jody Garnett <[email protected]
> > > > (mailto:[email protected])>
> > > > Date: 09/30/2011 06:39PM
> > > > cc: [email protected]
> > > > (mailto:[email protected])
> > > > Subject: Re: [Geotools-gt2-users] Reg AStarShortestPathFinder in
> > > > Geotools
> > > >
> > > > I think you (when you supply the generator) get to choose what to
> > > > store where.
> > > >
> > > > * The graph is just a data structure; if you look at the example of the
> > > > docs you can see the edgeWeighter accessing the edge to get the
> > > > associated Feature.
> > > > * If you were making a graph out of polygons (with the relationship
> > > > touches) it would make more sense to store the feature on the Nodes.
> > > >
> > > > Note: It is very difficult to get a quality dataset that can be used
> > > > for navigation; so disconnected graphs are pretty common (and a good
> > > > way to perform QA on your dataset).
> > > >
> > > > There are two implementations of LineGraphGenerator which one are you
> > > > using?
> > > >
> > > > The BasicLineGraphGenerator has the following:
> > > >
> > > >
> > > > public Graphable add(Object obj) {
> > > > LineSegment line = (LineSegment)obj;
> > > > Coordinate c;
> > > > Node n1, n2;
> > > >
> > > > //check first coordinate
> > > > c = line.p0;
> > > > if ((n1 = (Node)m_coord2node.get(c)) == null) {
> > > > //first time coordinate seen, create node for it
> > > > n1 = getGraphBuilder().buildNode();
> > > >
> > > > //set underlying object to coordinate
> > > > //n1.setObject(c);
> > > > setObject(n1, c);
> > > >
> > > > getGraphBuilder().addNode(n1);
> > > > m_coord2node.put(c,n1);
> > > > }
> > > >
> > > > //check second coordinate
> > > > c = line.p1;
> > > > if ((n2 = (Node)m_coord2node.get(c)) == null) {
> > > > //first time coordinate seen, create node for it
> > > > n2 = getGraphBuilder().buildNode();
> > > >
> > > > //set underlying object to coordiante
> > > > //n2.setObject(c);
> > > > setObject(n2,c);
> > > >
> > > > getGraphBuilder().addNode(n2);
> > > > m_coord2node.put(c,n2);
> > > > }
> > > >
> > > > //build the edge setting underlying object to line
> > > > Edge e = getGraphBuilder().buildEdge(n1,n2);
> > > > //e.setObject(line);
> > > > setObject(e, line);
> > > >
> > > > getGraphBuilder().addEdge(e);
> > > >
> > > > //return the created edge
> > > > return(e);
> > > > }
> > > >
> > > >
> > > > You can see that setObject( n1, c) is called ... does the source code
> > > > offer enough clarification for you?
> > > > --
> > > > Jody Garnett
> > > >
> > > >
> > > > On Friday, 30 September 2011 at 9:37 PM, Harshad S wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > Once the graph is formed as a line network from the shapefile, what
> > > > > is stored exactly in a Node which we obtain from the 'getNodes()'
> > > > > function. I am guessing the 'Node' will store the X,Y coordinates of
> > > > > a point. Can anyone provide some clarification on this because
> > > > > irrespective of which 2 points I select, they always seem to be
> > > > > disconnected on the graph. Please suggest.
> > > > >
> > > > > Thank You.
> > > > > Harshad Shrikhande
> > > > > Researcher R&D
> > > > > TCS Innovations Infra Lab, Chennai
> > > > > Tata Consultancy Services
> > > > > Cell:- 7200605821
> > > > > Mailto: [email protected] (mailto:[email protected])
> > > > > Website: http://www.tcs.com
> > > > > ____________________________________________
> > > > > Experience certainty. IT Services
> > > > > Business Solutions
> > > > > Outsourcing
> > > > > ____________________________________________
> > > > >
> > > > > -----Harshad S/TVM/TCS wrote: -----
> > > > > > To: Harshad S/TVM/TCS
> > > > > > From: Harshad S/TVM/TCS
> > > > > > Date: 09/30/2011 03:49PM
> > > > > > cc: [email protected]
> > > > > > (mailto:[email protected])
> > > > > > Subject: Re: [Geotools-gt2-users] Reg AStarShortestPathFinder in
> > > > > > Geotools
> > > > > >
> > > > > > Hi,
> > > > > >
> > > > > > I guess if this is because the last node in the path is not the
> > > > > > same as the first node. Is this a bug with the graph or I am
> > > > > > missing something.
> > > > > >
> > > > > >
> > > > > > Thank You.
> > > > > > Harshad Shrikhande
> > > > > > Researcher R&D
> > > > > > TCS Innovations Infra Lab, Chennai
> > > > > > Tata Consultancy Services
> > > > > > Cell:- 7200605821
> > > > > > Mailto: [email protected] (mailto:[email protected])
> > > > > > Website: http://www.tcs.com
> > > > > > ____________________________________________
> > > > > > Experience certainty. IT Services
> > > > > > Business Solutions
> > > > > > Outsourcing
> > > > > > ____________________________________________
> > > > > >
> > > > > > -----Harshad S wrote: -----
> > > > > > > To: [email protected]
> > > > > > > (mailto:[email protected])
> > > > > > > From: Harshad S <[email protected] (mailto:[email protected])>
> > > > > > > Date: 09/30/2011 02:22PM
> > > > > > > Subject: [Geotools-gt2-users] Reg AStarShortestPathFinder in
> > > > > > > Geotools
> > > > > > >
> > > > > > > Hey folks ,
> > > > > > >
> > > > > > > I just needed to confirm one thing about
> > > > > > > 'AStarShortestPathFinder' class and its functions . I have a
> > > > > > > graph and I run the following code on it .
> > > > > > >
> > > > > > > 1) AStarShortestPathFinder astar = new
> > > > > > > AStarShortestPathFinder(graph, source, dest, afuncs)
> > > > > > >
> > > > > > > 2) astar.calculate() ( I am assuming the path gets stored in
> > > > > > > astar)
> > > > > > >
> > > > > > > 3) Path p = astar.getPath();
> > > > > > >
> > > > > > > For one of the shapefiles that I am using, the graph is
> > > > > > > constructed with all the nodes. But, there is an error that comes
> > > > > > > up in the 3rd line saying that 'The path doesn't begin
> > > > > > > correctly'.
> > > > > > >
> > > > > > > Please suggest a fix for this .
> > > > > > >
> > > > > > > Thank You.
> > > > > > > Harshad Shrikhande
> > > > > > > Researcher R&D
> > > > > > > TCS Innovations Infra Lab, Chennai
> > > > > > > Tata Consultancy Services
> > > > > > > Cell:- 7200605821
> > > > > > > Mailto: [email protected] (mailto:[email protected])
> > > > > > > Website: http://www.tcs.com
> > > > > > > ____________________________________________
> > > > > > > Experience certainty. IT Services
> > > > > > > Business Solutions
> > > > > > > Outsourcing
> > > > > > > ____________________________________________
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> > > > > > > ------------------------------------------------------------------------------
> > > > > > > All of the data generated in your IT infrastructure is seriously
> > > > > > > valuable.
> > > > > > > Why? It contains a definitive record of application performance,
> > > > > > > security
> > > > > > > threats, fraudulent activity, and more. Splunk takes this data
> > > > > > > and makes
> > > > > > > sense of it. IT sense. And common sense.
> > > > > > > http://p.sf.net/sfu/splunk-d2dcopy2_______________________________________________
> > > > > > > Geotools-gt2-users mailing list
> > > > > > > [email protected]
> > > > > > > (mailto:[email protected])
> > > > > > > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
> > > > > ------------------------------------------------------------------------------
> > > > > All of the data generated in your IT infrastructure is seriously
> > > > > valuable.
> > > > > Why? It contains a definitive record of application performance,
> > > > > security
> > > > > threats, fraudulent activity, and more. Splunk takes this data and
> > > > > makes
> > > > > sense of it. IT sense. And common sense.
> > > > > http://p.sf.net/sfu/splunk-d2dcopy2
> > > > > _______________________________________________
> > > > > Geotools-gt2-users mailing list
> > > > > [email protected]
> > > > > (mailto:[email protected])
> > > > > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
> > > >
> > >
> > > ------------------------------------------------------------------------------
> > > All the data continuously generated in your IT infrastructure contains a
> > > definitive record of customers, application performance, security
> > > threats, fraudulent activity and more. Splunk takes this data and makes
> > > sense of it. Business sense. IT sense. Common sense.
> > > http://p.sf.net/sfu/splunk-d2dcopy1
> > > _______________________________________________
> > > Geotools-gt2-users mailing list
> > > [email protected]
> > > (mailto:[email protected])
> > > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
> ------------------------------------------------------------------------------
> All the data continuously generated in your IT infrastructure contains a
> definitive record of customers, application performance, security
> threats, fraudulent activity and more. Splunk takes this data and makes
> sense of it. Business sense. IT sense. Common sense.
> http://p.sf.net/sfu/splunk-d2dcopy1
> _______________________________________________
> Geotools-gt2-users mailing list
> [email protected]
> (mailto:[email protected])
> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
------------------------------------------------------------------------------
All the data continuously generated in your IT infrastructure contains a
definitive record of customers, application performance, security
threats, fraudulent activity and more. Splunk takes this data and makes
sense of it. Business sense. IT sense. Common sense.
http://p.sf.net/sfu/splunk-d2dcopy1
_______________________________________________
Geotools-gt2-users mailing list
[email protected]
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