Re: [udig-devel] adding a feature to the current map

[Jesse Eichar <jeichar@xxxxxxxxxxxxxxx>]

I've been following this thread and we have 2 things in the works right now.

1.  A method in Catalog which is essentially:

public IGeoResource catalog.createTempResource( Object type ); 

2.  Cory is now working on a wizard so if a temporary layer exists in a 
map a wizard will automatically be opened prompting the user to save the 
layer.

The method in point 1 will be in tonight's nightly build.

Other than that Vitali has good advice.  Here is some pseudo code for 
how to open a new map with you layer.

DefaultFeatureTypeFactory ftFactory = new DefaultFeatureTypeFactory();
AttributeType at = AttributeTypeFactory.newAttributeType("geom",
Polygon.class);
ftFactory.addType(at);

ftFactory.setName("myFeatureType");
FeatureType dbFeatureType = ftFactory.getFeatureType();


IGeoResource resource=CatalogPlugin.getDefault().getLocalCatalog.createTempResource( dbFeatureType );

CreateMapCommand command=new CreateMapCommand( "New Map", Collections.singletonList(resource), null );

ApplicationGIS.getActiveProject( ).sendASync( command );


(The last two lines can be combined if you don't care about the map name 
with ApplicationGIS.createAndOpenMap() )

Jesse

Vitali Diatchkov wrote:
> Hello!
>
> I understand you..  Before getting my project from customer (last summer) I
> spent 3 months only debugging UDIG, geotools, JTS, etc.. studying it.
> Without implementation at all. There was no way to get know the architecture
> and capabilities. I agree there are no good materials, docs, they are not
> consistent and do not make the whole picture.. (but the progress during the
> year is obvious in any way), API is changing.. etc.
> >From my point of view there was no other way to do it for me.. I also was
> tired hundred times when didn't understand something.. that's true. Now I
> have much more clear picture.
>
> I was thinking only to give a direction where to go (when trying to help)..
> When in the example I start with ready ShapefileDataStore, I suppose you
> know how to create a new ShapefileDataStore and write your features to it..
>
> The same with MemoryDataStore.. I didn't work with it. But from the
> experience of Catalog API, IResolve, IService, IGeoResource.. it is pretty
> the same.
>
> I have looked into the memory plugin.. Probably it would be something like
> that:
>
> ....................
> NewServiceConnectionFactory factory = new NewServiceConnectionFactory();
> Map<String, Serializable> params = factory.createConnectionParameters(null);
> MemoryServiceImpl service = new MemoryServiceImpl(MemoryService.URL);
> AnotherMemoryDataStore dataStore =
> service.resolve(AnotherMemoryDataStore.class,  new
> NullProgressMonitor());
>
> //Here is important step. You should create FeatureType for your layer
> DefaultFeatureTypeFactory ftFactory = new DefaultFeatureTypeFactory();
> AttributeType at = AttributeTypeFactory.newAttributeType("geom",
> Polygon.class);
> ftFactory.addType(at);
>
> ftFactory.setName("myFeatureType");
> FeatureType dbFeatureType = ftFactory.getFeatureType();
> 			
> dataStore.createSchema(dbFeatureType);			
>
> List<? extends IGeoResource>  geoResourceList =  (List<? extends
> IGeoResource>)service.resolve(List.class,new NullProgressMonitor());
> .........................
>
> You have list of IGeoResource .. so you are able to create Map, Layer,
> whatever (look into my previous examples)
>
>
> I didn't test those things.. I just help to show the direction where to go..
>
>
>
>
> I suppose you are able to create Layer from IGeoResource.
> Then you can resolve AnotherMemoryDataStore from it (or from IService) and
> use it to add features that conforms to created FeatureType before..
>
> Regards, Vitali.
>
>
>
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