Re: [Geotools-gt2-users] Reading "tif" to Coverage2D

[Jiří N. <nov...@gm...>]

Hi Michael,

thanks for leading me :)

Also answering inlines...

On 07/26/2011 11:19 PM, Michael Bedward wrote:
> Hi Jiri,
>
> Please see my comments inline:
>
>> This is my code:
>>
>>         FeatureCollection<SimpleFeatureType,SimpleFeature>  collection =
>>           RasterToVectorProcess.process(cov, band, bounds, outsideValues,
>> insideEdges, null);
>>
>>         FeatureIterator<SimpleFeature>  iterator = collection.features();
>>         try {
>>             while( iterator.hasNext() ){
>>                 SimpleFeature feature = iterator.next();
>>                 System.out.println(feature.getDefaultGeometry().getClass());
>>             }
>>         }
>>         finally {
>>             iterator.close();
>>         }
>>
>>         GeometryFactory gf = new GeometryFactory();
>>         MultiPolygon mp = gf.createMultiPolygon( collection.toArray(new
>> Polygon[0]) );
> Ah... I've given you a bum steer sorry. I hadn't ready your previous
> email and was thinking you were using the JAITools operator with
> Collection<Polygon>  output. Sorry about that.
>
> The RasterToVectorProcess is giving you a SimpleFeatureCollection
> where the Geometry type is Polygon. Do you want to convert each of
> these to individual MultiPolygons or combine all of them into a single
> MultiPolygon ?  I just want to check so that I don't send you off in
> the wrong direction again :)
>
I need to obtain just one MultiPolygon as the combination 
(dissolve/merge) of those in SimpleFeatureCollection.
>> 1) many info logs about EPSG initialization - is there a way to get rid of
>> it? E.g. set the geotools log level to warning?
> Those log messages were recently changed to Level.FINE on trunk
> (8.0-SNAPSHOT). Are you using the most recent binaries ?
>
I hope so, I am using this maven configuration:
...
<!-- === Versions of used frameworks and libraries === -->
<properties>
     ...
<org.geotools.version>8.0-M1</org.geotools.version>
     ...
</properties>

<repositories>
<repository>
<id>OSGEO GeoTools repo</id>
<url>http://download.osgeo.org/webdav/geotools</url>
</repository>
     ...
</repositories>

Is the right repository for the latest artifacts?

Jiri
>> 3) And then it falls at line: "MultiPolygon mp = gf.createMultiPolygon(
>> collection.toArray(new Polygon[0]) );" raising exception of incorrect
>> storing (allthought the types seems to correspond).
> That's because I told you to do the wrong thing.
>
> Michael