Application: gvSIG desktop » gvSIG tools: ToolBox

                                 final double y) {

      final GeometryFactory gf = new GeometryFactory();

      final Coordinate c = new Coordinate(x, y);

      Coordinate closestPoint = new Coordinate(x, y);

      Coordinate closestPointToThisLine;

      double minDist = m_dTolerance;

      try {

         final List<Geometry> list = m_NNF.getClosestGeometries(c, m_dTolerance);

         for (int iGeom = 0; iGeom < list.size(); iGeom++) {

            final Geometry geom = list.get(iGeom);

            final int iNumGeom = geom.getNumGeometries();

            for (int i = 0; i < iNumGeom; i++) {

               final Geometry subGeom = geom.getGeometryN(i);

               final Coordinate[] coords = subGeom.getCoordinates();

	       if (coords.length == 1){

		   //When snapping to point layer

		   final double dist = c.distance(coords[0]);

		   if ((dist < minDist)) {

		       minDist = dist;

		       closestPoint = coords[0];

	       } else {

		   // When snapping to linestring or polygon layer

		   for (int j = 0; j < coords.length - 1; j++) {

		       final LineSegment line = new LineSegment(coords[j], coords[j + 1]);

		       closestPointToThisLine = line.closestPoint(c);

		       final double dist = c.distance(closestPointToThisLine);

		       if ((dist < minDist)) {

			   minDist = dist;

			   closestPoint = closestPointToThisLine;

		       }

		   }

	       }

            }

         }

      } catch (final Exception e) {

	  // will return closest point so far

      }

      return gf.createPoint(closestPoint);