Reconstruction of the 2017 Boreham Wood formation | ||

1. |
Draw a circle. Draw the horizontal and vertical centerlines. | |

2. |
Construct the inscribed hexagon (regular 6-sided polygon) of circle 1, pointing up. | |

3. |
Construct the inscribed circle of hexagon 2. | |

4. |
Construct the circumscribed heptagon (regular 7-sided polygon) of circle 3, pointing down. | |

5. |
Construct the circumscribed circle of heptagon 4. | |

6. |
Draw a line from the center of circle 1 to the mid-point of the upper righthand side of hexagon 2. | |

7. |
Draw the connecting line between the lefthand and righthand intersections of hexagon 2 and heptagon 4, both second from the top, as shown. | |

8. |
Construct a circle concentric to circle 1, passing through the intersection of lines 6 and 7. | |

9. |
Construct the inscribed heptagon of circle 8, pointing to the right. | |

10. |
Construct a circle concentric to circle 1, passing through the intersection of line 6 and heptagon 9. | |

11. |
Construct the inscribed heptagon of circle 10, pointing down. | |

12. |
Construct a circle centered at the lower angular point of heptagon 11, passing through its rightmost angular point. | |

13. |
Copy circle 12 six times, to the other angular points of heptagon 11. | |

14. |
Draw the connecting line between the lower lefthand and righthand innermost mutual intersections of circles 13, as shown. | |

15. |
Construct a circle concentric to circle 1, tangent to line 14. | |

16. |
Construct the inscribed hexagon of circle 15, pointing up. | |

17. |
Draw a line from the center of circle 1 to the upper righthand angular point of heptagon 11. | |

18. |
Construct a circle centered at the intersection of circle 15 and line 17, tangent to line 6. | |

19. |
Copy circle 18 to the center of circle 1. | |

20. |
Copy circle 18 another three times, to the upper lefthand and righthand, and to the lower angular points of hexagon 16. | |

21. |
Construct three pairs of parallel lines, all tangent to circle 19, and each tangent to one of the circles 20, all at both sides, as shown. | |

22. |
Construct the "two-points" circle (defined by the two end-points of a centerline) between the center of circle 18 and its upper intersection with line 17. | |

23. |
Construct a circle concentric to circle 1, passing through the center of circle 22. | |

24. |
Copy circle 22 to the upper intersection of circle 12 and the vertical centerline. | |

25. |
Construct a circle concentric to circle 12, tangent to circle 24 at the upper side. | |

26. |
Copy circle 25 six times, to the centers of circles 13. | |

27. |
Copy circle 22 to the lower intersection of circle 3 and the vertical centerline. | |

28. |
Construct a circle concentric to circle 1, tangent to circle 27 at the lower side. | |

29. |
Circles 1, 3, 5, 8, 12, 13, 23, 25, 26, and 28, hexagon 16, and lines 21, are used for the final reconstruction. | |

30. |
Remove all parts not visible within the formation itself. | |

31. |
Colour all areas corresponding to standing... | |

32. |
...or to flattened crop, and finish the reconstruction of the 2017 Boreham Wood formation. | |

33. |
The final result, matched with the aerial image. |

Copyright © 2017, Zef Damen, The Netherlands |