Revision 12555 branches/v10/extensions/extGeoProcessing/src/com/iver/cit/gvsig/geoprocess/impl/convexhull/fmap/ScalableUnionVisitor.java

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ScalableUnionVisitor.java
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*
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* $Id$
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* $Log$
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* Revision 1.1  2006-06-20 18:20:45  azabala
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* Revision 1.1.2.1  2007-07-12 09:28:17  azabala
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* Modifications to work with closed polylines as polygons (usual in cad files)
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*
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* Revision 1.1  2006/06/20 18:20:45  azabala
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* first version in cvs
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*
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* Revision 1.3  2006/06/08 18:20:59  azabala
......
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*/
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package com.iver.cit.gvsig.geoprocess.impl.convexhull.fmap;
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import com.iver.cit.gvsig.fmap.core.FShape;


  		




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import com.iver.cit.gvsig.fmap.core.IGeometry;


  		




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import com.iver.cit.gvsig.fmap.operations.strategies.VisitException;


  		




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import com.iver.cit.gvsig.geoprocess.core.fmap.XTypes;


  		




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import com.vividsolutions.jts.geom.Geometry;


  		




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import com.vividsolutions.jts.geom.GeometryCollection;


  		




  
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import com.vividsolutions.jts.geom.MultiLineString;


  		




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  ......




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	public void visit(IGeometry g, int index) throws VisitException {


  		




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		if(g == null)


  		




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			return;


  		




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		if(g.getGeometryType() != XTypes.POLYGON &&


  		




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				g.getGeometryType() != XTypes.MULTI)


  		




  
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		Geometry actualGeometry = null;


  		




  
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		int geometryType = g.getGeometryType();


  		




  
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		switch(geometryType){


  		




  
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			case XTypes.POLYGON:


  		




  
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			case FShape.CIRCLE:


  		




  
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			case FShape.ELLIPSE:


  		




  
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            case FShape.POLYGON + FShape.Z:


  		




  
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            case FShape.MULTI://Este igual hay que quitarlo, pero no suele


  		




  
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            	//ser devuelto por los drivers


  		




  
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            	actualGeometry = g.toJTSGeometry();


  		




  
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		    break;


  		




  
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			case XTypes.LINE:


  		




  
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			case XTypes.ARC:


  		




  
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			case XTypes.LINE + XTypes.Z:


  		




  
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				actualGeometry = g.toJTSGeometry();


  		




  
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				MultiLineString lineString = (MultiLineString) actualGeometry;


  		




  
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				if(!lineString.isClosed())


  		




  
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					return;


  		




  
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				/*


  		




  
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				 * TODO


  		




  
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				 * must be faster build a multipolygon from the multilinestring


  		




  
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				 * (one polygon from each linestring


  		




  
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				 * */


  		




  
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				actualGeometry = lineString.buffer(0d);


  		




  
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			break;


  		




  
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			default:


  		




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			return;


  		




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		Geometry actualGeometry = g.toJTSGeometry();


  		




  
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		}


  		




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		if(geometry == null){


  		




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			geometry = actualGeometry;


  		




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		}else{


  		












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