Re: [Geotools-gt2-users] Reg Graph Issues in Geotools

Sun, 02 Oct 2011 22:01:28 -0700

Hi Jody,

     I will be more than willing to try the graph module and see if it makes sense.

Bye
Harshad Shrikhande
Researcher R&D
TCS Innovations Infra Lab, Chennai
Tata Consultancy Services
Cell:- 7200605821
Mailto: [email protected]
Website: http://www.tcs.com
____________________________________________
Experience certainty. IT Services
Business Solutions
Outsourcing
____________________________________________

-----Jody Garnett <[email protected]> wrote: -----

To: Harshad S <[email protected]>
From: Jody Garnett <[email protected]>
Date: 09/30/2011 06:20PM
cc: [email protected]
Subject: Re: [Geotools-gt2-users] Reg Graph Issues in Geotools

You got it sorted; however some of this information is in the tutorials? Have you had a go through the tutorials ...
<p>
I *would* like to make a tutorial for the graph module; but in general I need a friend on the user list here in order to try out the result and tell me if it makes sense. It sounds like you are working through the graph api at reasonable clip; let me know if you would be able to volunteer in this capacity.

-- 
Jody Garnett

On Friday, 30 September 2011 at 5:11 PM, Harshad S wrote:


Hi,
  
           I actually found a way of doing that by using the 'getAttribute(int)' function of SimpleFeature.


Thank You.
Harshad Shrikhande
Researcher R&D
TCS Innovations Infra Lab, Chennai
Tata Consultancy Services
Cell:- 7200605821
Mailto: [email protected]
Website: http://www.tcs.com
____________________________________________
Experience certainty.     IT Services
               Business Solutions
               Outsourcing
____________________________________________

-----Harshad S wrote: -----
To: [email protected]
From: Harshad S <[email protected]>
Date: 09/30/2011 12:01PM
cc: [email protected]
Subject: Re: [Geotools-gt2-users] Reg Graph Issues in Geotools

Hi all,

             Just a quick doubt. I am uploading a road network shapefile to application. I want to see each feature, its type(point, polygon or point ) and its descriptors like the (x,y) coordinates of the features. How can I get this info. Please help.


Thank You.
Harshad Shrikhande
Researcher R&D
TCS Innovations Infra Lab, Chennai
Tata Consultancy Services
Cell:- 7200605821
Mailto: [email protected]
Website: http://www.tcs.com
____________________________________________
Experience certainty.     IT Services
               Business Solutions
               Outsourcing
____________________________________________

-----Jody Garnett wrote: -----
To: Harshad S <[email protected]>
From: Jody Garnett <[email protected]>
Date: 09/30/2011 06:21AM
cc: [email protected]
Subject: Re: [Geotools-gt2-users] Reg Graph Issues in Geotools

The test cases are here - you could review LineGraphGeneratorTest if you have questions about that class:

You can also review the uDig graph module (which provides an interactive example you could use). Try them out with a debugger; other than that there are the docs on the website.

I would love to make a tutorial for this stuff but have not found the time / funding. I see you are a consultant so I am sure you can understand - there are additional support options listed here http://docs.geotools.org/latest/userguide/welcome/support.html if you need more direct support in order to meet a deadline.

-- 
Jody Garnett

On Thursday, 29 September 2011 at 10:14 PM, Harshad S wrote:

Hi,

           I think I didn't get your suggestion fully. Please suggest how should I go about it .

Thank You.
Harshad Shrikhande
Researcher R&D
TCS Innovations Infra Lab, Chennai
Tata Consultancy Services
Cell:- 7200605821
Mailto: [email protected]
Website: http://www.tcs.com
____________________________________________
Experience certainty.     IT Services
               Business Solutions
               Outsourcing
____________________________________________

-----Jody Garnett wrote: -----
To: Harshad S <[email protected]>
From: Jody Garnett <[email protected]>
Date: 09/29/2011 05:41PM
cc: [email protected]
Subject: Re: [Geotools-gt2-users] Reg Graph Issues in Geotools

Interesting; their are a number of generators; some of them you need to configure so they can tell how to "connect" the graph; however I though BasicLineGraphGenerator was pretty straight forward (the end points of the line have to be exactly the same).

Please review the test cases for the plugin in order to see examples.

-- 
Jody Garnett

On Thursday, 29 September 2011 at 7:08 PM, Harshad S wrote:

Hi,
         I am new to Geotools and its graph plugin. I am trying to find the shortest path between 2 points on a map. Following is the code for it. But there's an issue as the graph is not getting constructed from the shapefile and thus the 'generator' variable shows NULL value.


  1)  File file = JFileDataStoreChooser.showOpenFile("shp", null)
  2)  FileDataStore store = null;
  3)  store = FileDataStoreFinder.getDataStore(file);
  4)  SimpleFeatureSource featureSource = store.getFeatureSource()
  5)  LineGraphGenerator generator = new BasicLineGraphGenerator ()
  6)  SimpleFeatureCollection fc = featureSource.getFeatures();
        fc.accepts(new FeatureVisitor() {
           
            public void visit(Feature arg0) {
                // TODO Auto-generated method stub
            generator.add(arg0)    ;
            }
        }, null);
 
 Now, the generator is not getting populated with the graph from the shapefile. Please correct me I am missing something here.
       

Thank You.
Harshad Shrikhande
Researcher R&D
TCS Innovations Infra Lab, Chennai
Tata Consultancy Services
Cell:- 7200605821
Mailto: [email protected]
Website: http://www.tcs.com
____________________________________________
Experience certainty.     IT Services
               Business Solutions
               Outsourcing
____________________________________________
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threats, fraudulent activity and more. Splunk takes this data and makes
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