Re: [udig-devel] programmatically selecting features for highlighting

[Matthias Lendholt <matthias.lendholt@xxxxxxxxxxxxxx>]

Jesse Eichar schrieb:
> The name is of setFilter regarding selection was in hind sight a poor 
> decision because it implies that the features rendered will be 
> filtered.  Instead the 'non-filtered' features (IE features that match 
> the filter) are considered to be the selection.  There is the start of a 
> SelectionManager that will in the future help this situation.  But for 
> now Filter.ALL means filter everything (match nothing) and Filter.None 
> means filter nothing. 

Ok. For testing this little function, that should select "All except the 
one":

private void selectFeature(ILayer layer, Feature feature){

map.sendCommandSync(SelectionCommandFactory.getInstance().createFIDSelectCommand(layer, 
feature));
}

But it doesn't work. Nothing is selected. With the whole feature as 
input I thought I can avoid trouble with FIDs.


> I think newer versions of Geotools have changed 
> this to Filter.Include and Filter.Exclude.
>
> So set a bounding box filter on the layer and all features within that 
> bounding box are considered selected.

I'm using Multipolygons in my layer. Using the envelope could lead to a 
selection that includes several polygons cause they overlap or are 
otherwise laying in the given envelope. This is not the intention... 
only a certain feature shall be selected.

Thanks!

Matthias



> On 24-Oct-08, at 5:04 PM, Matthias Lendholt wrote:
>
> > Jesse Eichar schrieb:
> > > The Table view simply tracks changes to the filter on the selected 
> > > layer.  You can put a filter on a layer.  There should be a command 
> > > available to do this.  Look for something like SetFilterCommand or 
> > > something similar.
> >
> > FidFilter ff = 
> > FilterFactoryFinder.createFilterFactory().createFidFilter(fid);
> > map.sendCommandASync(SelectionCommandFactory.getInstance().createSelectCommand(layer,ff)); 
> >
> >
> > the map renders but nothing is selected.
>
> This should work if the fid is correct.  Becareful though because often 
> the FID changes after a commit.
>
> Jesse
>
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Matthias Lendholt
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