package org.opentrafficsim.core.geometry;
   
   import java.awt.geom.Line2D;
   import java.util.ArrayList;
   import java.util.List;
   
   import org.opentrafficsim.core.network.NetworkException;
   
   import com.vividsolutions.jts.geom.Coordinate;
  import com.vividsolutions.jts.geom.Geometry;
  import com.vividsolutions.jts.linearref.LengthIndexedLine;
  import com.vividsolutions.jts.operation.buffer.BufferParameters;
  
  /**
   * <p>
   * Copyright (c) 2013-2016 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
   * BSD-style license. See <a href="http://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
   * <p>
   * $LastChangedDate: 2015-07-16 10:20:53 +0200 (Thu, 16 Jul 2015) $, @version $Revision: 1124 $, by $Author: pknoppers $,
   * initial version Jul 22, 2015 <br>
   * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
   * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
   */
  public final class OTSBufferingJTS
  {
      /** Precision of buffer operations. */
      private static final int QUADRANTSEGMENTS = 16;
  
      /**
       * 
       */
      private OTSBufferingJTS()
      {
          // cannot be instantiated.
      }
  
      /**
       * normalize an angle between 0 and 2 * PI.
       * @param angle original angle.
       * @return angle between 0 and 2 * PI.
       */
      private static double norm(final double angle)
      {
          double normalized = angle % (2 * Math.PI);
          if (normalized < 0.0)
          {
              normalized += 2 * Math.PI;
          }
          return normalized;
      }
  
      /**
       * @param c1 first coordinate
       * @param c2 second coordinate
       * @return the normalized angle of the line between c1 and c2
       */
      private static double angle(final Coordinate c1, final Coordinate c2)
      {
          return norm(Math.atan2(c2.y - c1.y, c2.x - c1.x));
      }
  
      /**
       * Compute the distance of a line segment to a point. If the the projected points lies outside the line segment, the nearest
       * end point of the line segment is returned. Otherwise the point return lies between the end points of the line segment. <br>
       * Adapted from <a href="http://paulbourke.net/geometry/pointlineplane/DistancePoint.java"> example code provided by Paul
       * Bourke</a>.
       * @param lineP1 OTSPoint3D; start of line segment
       * @param lineP2 OTSPoint3D; end of line segment
       * @param point Point to project onto the line segment
       * @return double; the distance of the projected point or one of the end points of the line segment to the point
       */
      public static double distanceLineSegmentToPoint(final OTSPoint3D lineP1, final OTSPoint3D lineP2, final OTSPoint3D point)
      {
          return closestPointOnSegmentToPoint(lineP1, lineP2, point).distanceSI(point);
      }
  
      /**
       * Project a point on a line (2D). If the the projected points lies outside the line segment, the nearest end point of the
       * line segment is returned. Otherwise the point return lies between the end points of the line segment. <br>
       * Adapted from <a href="http://paulbourke.net/geometry/pointlineplane/DistancePoint.java"> example code provided by Paul
       * Bourke</a>.
       * @param lineP1 OTSPoint3D; start of line segment
       * @param lineP2 OTSPoint3D; end of line segment
       * @param point Point to project onto the line segment
       * @return Point2D.Double; either <cite>lineP1</cite>, or <cite>lineP2</cite> or a new OTSPoint3D that lies somewhere in
       *         between those two
       */
      public static OTSPoint3D closestPointOnSegmentToPoint(final OTSPoint3D lineP1, final OTSPoint3D lineP2,
              final OTSPoint3D point)
      {
          double dX = lineP2.x - lineP1.x;
          double dY = lineP2.y - lineP1.y;
          if ((0 == dX) && (0 == dY))
          {
              return lineP1;
          }
          final double u = ((point.x - lineP1.x) * dX + (point.y - lineP1.y) * dY) / (dX * dX + dY * dY);
          if (u < 0)
          {
             return lineP1;
         }
         else if (u > 1)
         {
             return lineP2;
         }
         else
         {
             return new OTSPoint3D(lineP1.x + u * dX, lineP1.y + u * dY); // could use interpolate in stead
         }
     }
 
     /**
      * Construct parallel line without.
      * @param referenceLine OTSLine3D; the reference line
      * @param offset double; offset distance from the reference line; positive is LEFT, negative is RIGHT
      * @return OTSLine3D; the line that has the specified offset from the reference line
      */
     public static OTSLine3D offsetLine(final OTSLine3D referenceLine, final double offset)
     {
         try
         {
             double bufferOffset = Math.abs(offset);
             final double precision = 0.00001;
             if (bufferOffset < precision)
             {
                 return referenceLine; // It is immutable; so we can safely return the original
             }
             final double circlePrecision = 0.001;
             List<OTSPoint3D> points = new ArrayList<>();
             // Make good use of the fact that an OTSLine3D cannot have consecutive duplicate points and has > 1 points
             OTSPoint3D prevPoint = referenceLine.get(0);
             Double prevAngle = null;
             for (int index = 0; index < referenceLine.size() - 1; index++)
             {
                 OTSPoint3D nextPoint = referenceLine.get(index + 1);
                 double angle = Math.atan2(nextPoint.y - prevPoint.y, nextPoint.x - prevPoint.x);
                 OTSPoint3D segmentFrom =
                         new OTSPoint3D(prevPoint.x - Math.sin(angle) * offset, prevPoint.y + Math.cos(angle) * offset);
                 OTSPoint3D segmentTo =
                         new OTSPoint3D(nextPoint.x - Math.sin(angle) * offset, nextPoint.y + Math.cos(angle) * offset);
                 if (index > 0)
                 {
                     double deltaAngle = angle - prevAngle;
                     if (Math.abs(deltaAngle) > Math.PI)
                     {
                         deltaAngle -= Math.signum(deltaAngle) * 2 * Math.PI;
                     }
                     if (deltaAngle * offset > 0)
                     {
                         // Inside of curve of reference line.
                         // Add the intersection point of each previous segment and the next segment
                         OTSPoint3D pPoint = null;
                         for (int i = 0; i < points.size(); i++)
                         {
                             OTSPoint3D p = points.get(i);
                             if (Double.isNaN(p.z))
                             {
                                 continue; // skip this one
                             }
                             if (null != pPoint)
                             {
                                 double pAngle = Math.atan2(p.y - pPoint.y, p.x - pPoint.x);
                                 double totalAngle = angle - pAngle;
                                 if (Math.abs(totalAngle) > Math.PI)
                                 {
                                     totalAngle += Math.signum(totalAngle) * 2 * Math.PI;
                                 }
                                 if (Math.abs(totalAngle) > 0.01)
                                 {
                                     // System.out.println("preceding segment " + pPoint + " to " + p + ", this segment "
                                     // + segmentFrom + " to " + segmentTo + " totalAngle " + totalAngle);
                                     OTSPoint3D intermediatePoint =
                                             intersectionOfLineSegments(pPoint, p, segmentFrom, segmentTo);
                                     if (null != intermediatePoint)
                                     {
                                         // mark it as added point at inside corner
                                         intermediatePoint =
                                                 new OTSPoint3D(intermediatePoint.x, intermediatePoint.y, Double.NaN);
                                         // System.out.println("Inserting intersection of preceding segment and this segment "
                                         // + intermediatePoint);
                                         points.add(intermediatePoint);
                                     }
                                 }
                             }
                             pPoint = p;
                         }
                     }
                     else
                     {
                         // Outside of curve of reference line
                         // Approximate an arc using straight segments.
                         // Determine how many segments are needed.
                         int numSegments = 1;
                         if (Math.abs(deltaAngle) > Math.PI / 2)
                         {
                             numSegments = 2;
                         }
                         for (; numSegments < 1000; numSegments *= 2)
                         {
                             double maxError = bufferOffset * (1 - Math.abs(Math.cos(deltaAngle / numSegments / 2)));
                             if (maxError < circlePrecision)
                             {
                                 break; // required precision reached
                             }
                         }
                         // Generate the intermediate points
                         for (int additionalPoint = 1; additionalPoint < numSegments; additionalPoint++)
                         {
                             double intermediateAngle =
                                     (additionalPoint * angle + (numSegments - additionalPoint) * prevAngle) / numSegments;
                             if (prevAngle * angle < 0 && Math.abs(prevAngle) > Math.PI / 2 && Math.abs(angle) > Math.PI / 2)
                             {
                                 intermediateAngle += Math.PI;
                             }
                             OTSPoint3D intermediatePoint =
                                     new OTSPoint3D(prevPoint.x - Math.sin(intermediateAngle) * offset, prevPoint.y
                                             + Math.cos(intermediateAngle) * offset);
                             // System.out.println("inserting intermediate point " + intermediatePoint + " for angle "
                             // + Math.toDegrees(intermediateAngle));
                             points.add(intermediatePoint);
                         }
                     }
                 }
                 points.add(segmentFrom);
                 points.add(segmentTo);
                 prevPoint = nextPoint;
                 prevAngle = angle;
             }
             // System.out.println(OTSGeometry.printCoordinates("#before cleanup: \nc0,0,0\n#", new OTSLine3D(points), "\n   "));
             // Remove points that are closer than the specified offset
             for (int index = 1; index < points.size() - 1; index++)
             {
                 OTSPoint3D checkPoint = points.get(index);
                 prevPoint = null;
                 boolean tooClose = false;
                 boolean somewhereAtCorrectDistance = false;
                 for (int i = 0; i < referenceLine.size(); i++)
                 {
                     OTSPoint3D p = referenceLine.get(i);
                     if (null != prevPoint)
                     {
                         OTSPoint3D closestPoint = closestPointOnSegmentToPoint(prevPoint, p, checkPoint);
                         if (closestPoint != referenceLine.get(0) && closestPoint != referenceLine.get(referenceLine.size() - 1))
                         {
                             double distance = closestPoint.horizontalDistanceSI(checkPoint);
                             if (distance < bufferOffset - circlePrecision)
                             {
                                 // System.out.print("point " + checkPoint + " inside buffer (distance is " + distance + ")");
                                 tooClose = true;
                                 break;
                             }
                             else if (distance < bufferOffset + precision)
                             {
                                 somewhereAtCorrectDistance = true;
                             }
                         }
                     }
                     prevPoint = p;
                 }
                 if (tooClose || !somewhereAtCorrectDistance)
                 {
                     // System.out.println("Removing " + checkPoint);
                     points.remove(index);
                     index--;
                 }
             }
             // Fix the z-coordinate of all points that were added as intersections of segments.
             for (int index = 0; index < points.size(); index++)
             {
                 OTSPoint3D p = points.get(index);
                 if (Double.isNaN(p.z))
                 {
                     points.set(index, new OTSPoint3D(p.x, p.y, 0));
                 }
             }
             return OTSLine3D.createAndCleanOTSLine3D(points);
         }
         catch (OTSGeometryException exception)
         {
             System.err.println("Cannot happen");
             exception.printStackTrace();
             return null;
         }
     }
 
     /**
      * Compute the 2D intersection of two line segments. Both line segments are defined by two points (that should be distinct).
      * @param line1P1 OTSPoint3D; first point of line 1
      * @param line1P2 OTSPoint3D; second point of line 1
      * @param line2P1 OTSPoint3D; first point of line 2
      * @param line2P2 OTSPoint3D; second point of line 2
      * @return OTSPoint3D; the intersection of the two lines, or null if the lines are (almost) parallel, or do not intersect
      */
     private static OTSPoint3D intersectionOfLineSegments(final OTSPoint3D line1P1, final OTSPoint3D line1P2,
             final OTSPoint3D line2P1, final OTSPoint3D line2P2)
     {
         double denominator =
                 (line2P2.y - line2P1.y) * (line1P2.x - line1P1.x) - (line2P2.x - line2P1.x) * (line1P2.y - line1P1.y);
         if (denominator == 0f)
         {
             return null; // lines are parallel (they might even be on top of each other, but we don't check that)
         }
         double uA =
                 ((line2P2.x - line2P1.x) * (line1P1.y - line2P1.y) - (line2P2.y - line2P1.y) * (line1P1.x - line2P1.x))
                         / denominator;
         if ((uA < 0f) || (uA > 1f))
         {
             return null; // intersection outside line 1
         }
         double uB =
                 ((line1P2.x - line1P1.x) * (line1P1.y - line2P1.y) - (line1P2.y - line1P1.y) * (line1P1.x - line2P1.x))
                         / denominator;
         if (uB < 0 || uB > 1)
         {
             return null; // intersection outside line 2
         }
         return new OTSPoint3D(line1P1.x + uA * (line1P2.x - line1P1.x), line1P1.y + uA * (line1P2.y - line1P1.y), 0);
     }
 
     /**
      * Generate a Geometry that has a fixed offset from a reference Geometry.
      * @param referenceLine Geometry; the reference line
      * @param offset double; offset distance from the reference line; positive is LEFT, negative is RIGHT
      * @return OTSLine3D; the line that has the specified offset from the reference line
      * @throws OTSGeometryException on failure
      */
     @SuppressWarnings("checkstyle:methodlength")
     public static OTSLine3D offsetGeometryOLD(final OTSLine3D referenceLine, final double offset) throws OTSGeometryException
     {
         Coordinate[] referenceCoordinates = referenceLine.getCoordinates();
         // printCoordinates("reference", referenceCoordinates);
         double bufferOffset = Math.abs(offset);
         final double precision = 0.000001;
         if (bufferOffset < precision) // if this is not added, and offset = 1E-16: CRASH
         {
             // return a copy of the reference line
             return new OTSLine3D(referenceCoordinates);
         }
         Geometry geometryLine = referenceLine.getLineString();
         Coordinate[] bufferCoordinates =
                 geometryLine.buffer(bufferOffset, QUADRANTSEGMENTS, BufferParameters.CAP_FLAT).getCoordinates();
 
         // Z coordinates may be NaN at this point
 
         // find the coordinate indices closest to the start point and end point,
         // at a distance of approximately the offset
         Coordinate sC0 = referenceCoordinates[0];
         Coordinate sC1 = referenceCoordinates[1];
         Coordinate eCm1 = referenceCoordinates[referenceCoordinates.length - 1];
         Coordinate eCm2 = referenceCoordinates[referenceCoordinates.length - 2];
 
         double expectedStartAngle = norm(angle(sC0, sC1) + Math.signum(offset) * Math.PI / 2.0);
         double expectedEndAngle = norm(angle(eCm2, eCm1) + Math.signum(offset) * Math.PI / 2.0);
         Coordinate sExpected =
                 new Coordinate(sC0.x + bufferOffset * Math.cos(expectedStartAngle), sC0.y + bufferOffset
                         * Math.sin(expectedStartAngle));
         Coordinate eExpected =
                 new Coordinate(eCm1.x + bufferOffset * Math.cos(expectedEndAngle), eCm1.y + bufferOffset
                         * Math.sin(expectedEndAngle));
 
         // which coordinates are closest to sExpected and eExpected?
         double dS = Double.MAX_VALUE;
         double dE = Double.MAX_VALUE;
         int sIndex = -1;
         int eIndex = -1;
         for (int i = 0; i < bufferCoordinates.length; i++)
         {
             Coordinate c = bufferCoordinates[i];
             double dsc = c.distance(sExpected);
             double dec = c.distance(eExpected);
             if (dsc < dS)
             {
                 dS = dsc;
                 sIndex = i;
             }
             if (dec < dE)
             {
                 dE = dec;
                 eIndex = i;
             }
         }
 
         if (sIndex == -1)
         {
             throw new OTSGeometryException("offsetGeometry: startIndex not found for line " + referenceLine);
         }
         if (eIndex == -1)
         {
             throw new OTSGeometryException("offsetGeometry: endIndex not found for line " + referenceLine);
         }
         if (dS > 0.01)
         {
             System.err.println(referenceLine.toExcel() + "\n\n\n\n" + new OTSLine3D(bufferCoordinates).toExcel() + "\n\n\n\n"
                     + sExpected + "\n" + eExpected);
             throw new OTSGeometryException("offsetGeometry: startDistance too big (" + dS + ") for line " + referenceLine);
         }
         if (dE > 0.01)
         {
             throw new OTSGeometryException("offsetGeometry: endDistance too big (" + dE + ") for line " + referenceLine);
         }
 
         // try positive direction
         boolean ok = true;
         int i = sIndex;
         Coordinate lastC = null;
         List<OTSPoint3D> result = new ArrayList<>();
         while (ok)
         {
             Coordinate c = bufferCoordinates[i];
             if (lastC != null && close(c, lastC, sC0, eCm1))
             {
                 ok = false;
                 break;
             }
             result.add(new OTSPoint3D(c));
             if (i == eIndex)
             {
                 return OTSLine3D.createAndCleanOTSLine3D(result);
             }
             i = (i == bufferCoordinates.length - 1) ? 0 : i + 1;
             lastC = c;
         }
 
         // try negative direction
         ok = true;
         i = sIndex;
         lastC = null;
         result = new ArrayList<>();
         while (ok)
         {
             Coordinate c = bufferCoordinates[i];
             if (lastC != null && close(c, lastC, sC0, eCm1))
             {
                 ok = false;
                 break;
             }
             result.add(new OTSPoint3D(c));
             if (i == eIndex)
             {
                 return OTSLine3D.createAndCleanOTSLine3D(result);
             }
             i = (i == 0) ? bufferCoordinates.length - 1 : i - 1;
             lastC = c;
         }
 
         /*- System.err.println(referenceLine.toExcel() + "\n\n\n\n" + new OTSLine3D(bufferCoordinates).toExcel()
             + "\n\n\n\n" + sExpected + "\n" + eExpected); */
         throw new OTSGeometryException("offsetGeometry: could not find offset in either direction for line " + referenceLine);
     }
 
     /**
      * Check if the points check[] are close to the line [lineC1..LineC2].
      * @param lineC1 first point of the line
      * @param lineC2 second point of the line
      * @param check the coordinates to check
      * @return whether one of the points to check is close to the line.
      */
     private static boolean close(final Coordinate lineC1, final Coordinate lineC2, final Coordinate... check)
     {
         Line2D.Double line = new Line2D.Double(lineC1.x, lineC1.y, lineC2.x, lineC2.y);
         for (Coordinate c : check)
         {
             if (line.ptSegDist(c.x, c.y) < 0.01)
             {
                 return true;
             }
         }
         return false;
     }
 
     /**
      * Create a line at linearly varying offset from a reference line. The offset may change linearly from its initial value at
      * the start of the reference line to its final offset value at the end of the reference line.
      * @param referenceLine Geometry; the Geometry of the reference line
      * @param offsetAtStart double; offset at the start of the reference line (positive value is Left, negative value is Right)
      * @param offsetAtEnd double; offset at the end of the reference line (positive value is Left, negative value is Right)
      * @return Geometry; the Geometry of the line at linearly changing offset of the reference line
      * @throws OTSGeometryException when this method fails to create the offset line
      */
     public static OTSLine3D offsetLine(final OTSLine3D referenceLine, final double offsetAtStart, final double offsetAtEnd)
             throws OTSGeometryException
     {
         // System.out.println(OTSGeometry.printCoordinates("#referenceLine: \nc1,0,0\n# offset at start is " + offsetAtStart
         // + " at end is " + offsetAtEnd + "\n#", referenceLine, "\n   "));
 
         OTSLine3D offsetLineAtStart = offsetLine(referenceLine, offsetAtStart);
         if (offsetAtStart == offsetAtEnd)
         {
             return offsetLineAtStart; // offset does not change
         }
         // System.out.println(OTSGeometry.printCoordinates("#offset line at start: \nc0,0,0\n#", offsetLineAtStart, "\n   "));
         OTSLine3D offsetLineAtEnd = offsetLine(referenceLine, offsetAtEnd);
         // System.out.println(OTSGeometry.printCoordinates("#offset line at end: \nc0.7,0.7,0.7\n#", offsetLineAtEnd, "\n   "));
         Geometry startGeometry = offsetLineAtStart.getLineString();
         Geometry endGeometry = offsetLineAtEnd.getLineString();
         LengthIndexedLine first = new LengthIndexedLine(startGeometry);
         double firstLength = startGeometry.getLength();
         LengthIndexedLine second = new LengthIndexedLine(endGeometry);
         double secondLength = endGeometry.getLength();
         ArrayList<Coordinate> out = new ArrayList<Coordinate>();
         Coordinate[] firstCoordinates = startGeometry.getCoordinates();
         Coordinate[] secondCoordinates = endGeometry.getCoordinates();
         int firstIndex = 0;
         int secondIndex = 0;
         Coordinate prevCoordinate = null;
         final double tooClose = 0.05; // 5 cm
         while (firstIndex < firstCoordinates.length && secondIndex < secondCoordinates.length)
         {
             double firstRatio =
                     firstIndex < firstCoordinates.length ? first.indexOf(firstCoordinates[firstIndex]) / firstLength
                             : Double.MAX_VALUE;
             double secondRatio =
                     secondIndex < secondCoordinates.length ? second.indexOf(secondCoordinates[secondIndex]) / secondLength
                             : Double.MAX_VALUE;
             double ratio;
             if (firstRatio < secondRatio)
             {
                 ratio = firstRatio;
                 firstIndex++;
             }
             else
             {
                 ratio = secondRatio;
                 secondIndex++;
             }
             Coordinate firstCoordinate = first.extractPoint(ratio * firstLength);
             Coordinate secondCoordinate = second.extractPoint(ratio * secondLength);
             Coordinate resultCoordinate =
                     new Coordinate((1 - ratio) * firstCoordinate.x + ratio * secondCoordinate.x, (1 - ratio)
                             * firstCoordinate.y + ratio * secondCoordinate.y);
             if (null == prevCoordinate || resultCoordinate.distance(prevCoordinate) > tooClose)
             {
                 out.add(resultCoordinate);
                 prevCoordinate = resultCoordinate;
             }
         }
         Coordinate[] resultCoordinates = new Coordinate[out.size()];
         for (int index = 0; index < out.size(); index++)
         {
             resultCoordinates[index] = out.get(index);
         }
         return new OTSLine3D(resultCoordinates);
     }
 
     /**
      * @param args args
      * @throws NetworkException on error
      * @throws OTSGeometryException on error
      */
     public static void main(final String[] args) throws NetworkException, OTSGeometryException
     {
         // OTSLine3D line =
         // new OTSLine3D(new OTSPoint3D[]{new OTSPoint3D(-579.253, 60.157, 1.568),
         // new OTSPoint3D(-579.253, 60.177, 1.568)});
         // double offset = 4.83899987;
         // System.out.println(OTSBufferingOLD.offsetGeometryOLD(line, offset));
         OTSLine3D line =
                 new OTSLine3D(new OTSPoint3D[] { new OTSPoint3D(-579.253, 60.157, 4.710),
                         new OTSPoint3D(-579.253, 60.144, 4.712), new OTSPoint3D(-579.253, 60.144, 0.000),
                         new OTSPoint3D(-579.251, 60.044, 0.000), new OTSPoint3D(-579.246, 59.944, 0.000),
                         new OTSPoint3D(-579.236, 59.845, 0.000), new OTSPoint3D(-579.223, 59.746, 0.000),
                         new OTSPoint3D(-579.206, 59.647, 0.000), new OTSPoint3D(-579.185, 59.549, 0.000),
                         new OTSPoint3D(-579.161, 59.452, 0.000), new OTSPoint3D(-579.133, 59.356, 0.000),
                         new OTSPoint3D(-579.101, 59.261, 0.000), new OTSPoint3D(-579.066, 59.168, 0.000),
                         new OTSPoint3D(-579.028, 59.075, 0.000), new OTSPoint3D(-578.986, 58.985, 0.000),
                         new OTSPoint3D(-578.940, 58.896, 0.000), new OTSPoint3D(-578.891, 58.809, 0.000),
                         new OTSPoint3D(-578.839, 58.723, 0.000), new OTSPoint3D(-578.784, 58.640, 0.000),
                         new OTSPoint3D(-578.725, 58.559, 0.000), new OTSPoint3D(-578.664, 58.480, 0.000),
                         new OTSPoint3D(-578.599, 58.403, 0.000), new OTSPoint3D(-578.532, 58.329, 0.000),
                         new OTSPoint3D(-578.462, 58.258, 0.000), new OTSPoint3D(-578.390, 58.189, 0.000),
                         new OTSPoint3D(-578.314, 58.123, 0.000), new OTSPoint3D(-578.237, 58.060, 0.000),
                         new OTSPoint3D(-578.157, 58.000, 0.000), new OTSPoint3D(-578.075, 57.943, 0.000),
                         new OTSPoint3D(-577.990, 57.889, 0.000), new OTSPoint3D(-577.904, 57.839, 0.000),
                         new OTSPoint3D(-577.816, 57.791, 0.000), new OTSPoint3D(-577.726, 57.747, 0.000),
                         new OTSPoint3D(-577.635, 57.707, 0.000), new OTSPoint3D(-577.542, 57.670, 0.000),
                         new OTSPoint3D(-577.448, 57.636, 0.000), new OTSPoint3D(-577.352, 57.606, 0.000),
                         new OTSPoint3D(-577.256, 57.580, 0.000), new OTSPoint3D(-577.159, 57.557, 0.000),
                         new OTSPoint3D(-577.060, 57.538, 0.000), new OTSPoint3D(-576.962, 57.523, 0.000),
                         new OTSPoint3D(-576.862, 57.512, 0.000), new OTSPoint3D(-576.763, 57.504, 0.000),
                         new OTSPoint3D(-576.663, 57.500, 0.000), new OTSPoint3D(-576.623, 57.500, 6.278),
                         new OTSPoint3D(-576.610, 57.500, 6.280), new OTSPoint3D(-567.499, 57.473, 6.280) });
         System.out.println(line.toExcel());
         System.out.println(OTSBufferingJTS.offsetGeometryOLD(line, -1.831));
     }
 }