code: private boolean connectTry( LineSegment2D_F32 target , int x , int y ) {
  		if( !grid.isInBounds(x,y) )
  			return false;
  
  		List<LineSegment2D_F32> lines = grid.get(x,y);
  
  		int index = findBestCompatible(target,lines,0);
  
  		if( index == -1 )
  			return false;
  
  		LineSegment2D_F32 b = lines.remove(index);
  
  		// join the two lines by connecting the farthest points from each other
  		Point2D_F32 pt0 = farthestIndex < 2 ? target.a : target.b;
  		Point2D_F32 pt1 = (farthestIndex %2) == 0 ? b.a : b.b;
  
  		target.a.set(pt0);
  		target.b.set(pt1);
  
  		// adding the merged one back in allows it to be merged with other lines down
  		// the line.  It will be compared against others in 'target's grid though
  		lines.add(target);
  
  		return true;
  	}
docs: See if there is a line that matches in this adjacent region.
  
  @param target Line being connected.
  @param x x-coordinate of adjacent region.
  @param y y-coordinate of adjacent region.
  @return true if a connection was made.