Re: [Geotools-gt2-users] Converting MultiLineString to Linestrin

[Oliver G. <ol...@dr...>]

Rob,

Not sure if the below will help you.
I just put out an example with question for:
Feature Reference - Better Way?

In the following code I drill down from the layer to the Point.

In the below line I have "route" set as my attribute name for Point at FeatureCollection creation.
            Point p = (Point)sf.getAttribute("route");
You could use Point p = (Point)sf.getAttribute(0);
but I'm not sure how safe that is.

I assume you can swap out MultiLineString for Point on attribute extraction.
You may want to look at my example to see how i brought everything together.

Oliver

@SuppressWarnings("unchecked")
public static void getCoordinates(double cx, double cy) throws IOException {
MapLayer[] layers = map.getLayers();    
    for (int i=0; i<layers.length; i++){
       FeatureSource<SimpleFeatureType, SimpleFeature> fs =(FeatureSource<SimpleFeatureType, SimpleFeature>)layers[i].getFeatureSource();
        FeatureCollection<SimpleFeatureType, SimpleFeature> fc = fs.getFeatures();
        Iterator<SimpleFeature> f = fc.iterator();
        while (f.hasNext()){
            SimpleFeature sf = (SimpleFeature)f.next();
            Point p = (Point)sf.getAttribute("route");
            double xi = p.getX();
            double yi = p.getY();
            if(checkFeatureReference(cx,cy,xi,yi)){
                System.out.println("x: "+xi+" y: "+yi+" IN FEATURE REFERENCE CIRCLE");
            } else {
                System.out.println("x: "+xi+" y: "+yi+" NOT IN FEATURE REFERENCE CIRCLE");
            }
        }
    }
}



-----Original Message-----
From: "Heise, Robert" <Rob...@ra...>
Sent: Wednesday, November 25, 2009 4:23pm
To: "Michael Bedward" <mic...@gm...>
Cc: "geo...@li..." <geo...@li...>
Subject: Re: [Geotools-gt2-users] Converting MultiLineString to Linestring

Thanks for the response.

If I am iterating over FeatureCollection, how do I get the MultiLineString from SimpleFeature?

Thanks
Rob

-----Original Message-----
From: Michael Bedward [mailto:mic...@gm...]
Sent: Tuesday, November 24, 2009 6:29 PM
To: Heise, Robert
Cc: geo...@li...
Subject: Re: [Geotools-gt2-users] Converting MultiLineString to Linestring

Hi Robert

MultiLineString mls = ...

int N = mls.getNumGeometries();

LineString lines[] = new LineString[ N ];
for ( int i = 0; i < N; i++ ) {
    lines[ i ] = mls.getGeometryN( i );
}

Hope this helps,
Michael

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