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Re: [udig-devel] Polygons drawn with PolygonTool not in my FeatureStore...
I don't see anything obvious I'm afraid. I could suggest another way of doing this though. You could make a new Tool that extends the PolygonTool and overrides the addAcceptBehaviours() method. The overridden method would add a new behaviour which could either add the created polygon to the Layer's black board (or just do nothing). Then your search method could use the shape on the layer's blackboard (you wouldn't need a dedicated layer for this) to construct the search query. If you did not add any new behaviour (just overrode the addAcceptBehaviours method with an empty method) then you could use the shape on the EditBlackboard to construct your query. To get the correct blackboard do: EditblackboardUtils.getEditBlackboard ( ApplicationGIS.createContext(layer.getMap), layer ). 


Jesse



On Aug 2, 2007, at 7:11 AM, tony.roth@xxxxxx wrote:
One wish of my users is to get a 'geo referenced' search. (don't know if 
it's the correct english word)
They want to draw a polygon on the map, click on a search button, enter some additional restrictions for the query and finally send the query. As 
result they want the elements shown in the map.

I will use a dedicated polygon layer for that. The user can draw the
polygon with the PolygonTool. To prevent queries with more than one polygon the layer shll just store one feature/polygon. If the user draws a polygon 
the old one will be removed.

What's the best way to realize this?
I tried it this way but failed:

// Featuretypebuilder, Ressource,....
// finally I have the layer :

    final Layer l = layer;
    l.addListener(new ILayerListener(){
     public void refresh(LayerEvent event) {
      // debug print
      System.out.println(event.getType().name());
      if (event.getType()== EventType.EDIT_EVENT){
       try {
FeatureStore fs = l.getGeoResource().resolve (FeatureStore.class, 
        null);
        FeatureIterator fI = fs.getFeatures().features();
        List<Feature> featureList = new ArrayList<Feature>();
        while (fI.hasNext()){
         featureList.add(fI.next());
        }
        if (featureList.size() > 1){
         // remove all features
         fs.removeFeatures(Filter.NONE);
         // add the last one
         fs.addFeatures(DataUtilities.collection(new
         Feature[]{featureList.get(featureList.size()-1)}));
         l.refresh(null);
        }
       } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
       }
      }
     }
    });
Even I draw a some polygons and see them in my application ths featureList 
is empty. The event is thrown and the layerListener activated and the
FeatureStroe is not null.
What's wrong in my code? Or a bad approach? Has someone a better idea to 
realize this functionality?

Thank you,
tony roth

still using 1.1RC8 :)

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