Revision 42441 trunk/org.gvsig.desktop/org.gvsig.desktop.compat.cdc/org.gvsig.fmap.geometry/org.gvsig.fmap.geometry.jts/src/main/java/org/gvsig/fmap/geom/jts/primitive/ring/Ring2DM.java

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Ring2DM.java
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package org.gvsig.fmap.geom.jts.primitive.ring;
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import com.vividsolutions.jts.geom.Coordinate;


  		




  
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import com.vividsolutions.jts.geom.GeometryFactory;


  		




  
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import com.vividsolutions.jts.geom.LinearRing;


  		




  
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import com.vividsolutions.jts.geomgraph.Position;


  		




  
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import com.vividsolutions.jts.operation.buffer.BufferParameters;


  		




  
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import com.vividsolutions.jts.operation.buffer.OffsetCurveBuilder;


  		




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import org.gvsig.fmap.geom.Geometry;


  		




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import org.gvsig.fmap.geom.GeometryException;


  		




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import org.gvsig.fmap.geom.jts.primitive.surface.polygon.Polygon2D;


  		




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import org.gvsig.fmap.geom.jts.primitive.surface.polygon.Polygon2DM;


  		




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import org.gvsig.fmap.geom.jts.util.JTSUtils;


  		




  
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import org.gvsig.fmap.geom.operation.GeometryOperationException;


  		




  
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import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException;


  		




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import org.gvsig.fmap.geom.primitive.Ring;


  		




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/**


  		




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    public com.vividsolutions.jts.geom.Geometry getJTS() {


  		




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        return JTSUtils.createJTSLinearRing(coordinates);


  		




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    }


  		




  
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    /* (non-Javadoc)


  		




  
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    * @see org.gvsig.fmap.geom.Geometry#offset(double)


  		




  
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    */


  		




  
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      public Geometry offset(double distance) throws GeometryOperationNotSupportedException, GeometryOperationException {


  		




  
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          com.vividsolutions.jts.geom.LinearRing jtsRing = (LinearRing) getJTS();


  		




  
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          GeometryFactory factory = jtsRing.getFactory();


  		




  
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          BufferParameters bufParams = JTSUtils.getBufferParameters();


  		




  
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          OffsetCurveBuilder ocb = new OffsetCurveBuilder(factory.getPrecisionModel(), bufParams);


  		




  
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          Coordinate[] coordinates = jtsRing.getCoordinates();


  		




  
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          Coordinate[] coords = ocb.getRingCurve(coordinates, Position.LEFT, distance); // .getOffsetCurve(coordinates,


  		




  
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          return new Ring2DM(coords);


  		




  
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      }


  		




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}


  		












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