2011 Burderop Down formation
|
Reconstruction of the 2011 Burderop Down formation | ||
| 1. |
| Draw a circle. Draw and extend the horizontal and vertical centerlines. |
| 2. |
| Construct the inscribed equilateral triangle of circle 1, pointing down. |
| 3. |
| Construct the inscribed equilateral triangle of circle 1, pointing up. |
| 4. |
| Construct a circle passing through all intersections of triangles 2 and 3. |
| 5. |
| Construct the inscribed equilateral triangle of circle 4, pointing to the right. |
| 6. |
| Construct the inscribed circle of triangle 5. |
| 7. |
| Copy circle 6 to the upper lefthand angular point of triangle 2. |
| 8. |
| Construct the inscribed equilateral triangle of circle 4, pointing to the left. |
| 9. |
| Construct a circle, passing through the righthand angular point of triangle 5, and passing through the upper and lower intersections of triangles 5 and 8. |
| 10. |
| Construct a circle concentric to circle 1, tangent to circle 9 at the lefthand side. |
| 11. |
| Copy circle 10 to the upper righthand angular point of triangle 2. |
| 12. |
| Construct a circle passing through all intersections of triangles 5 and 8. |
| 13. |
| Construct the inscribed equilateral triangle of circle 12, pointing up. |
| 14. |
| Construct the inscribed circle of triangle 13. |
| 15. |
| Copy circle 14 two times, to the lower angular points of triangle 3. |
| 16. |
| Construct a circle centered at the intersection of the lower side of triangle 13 and circle 9, tangent to the lefthand side of triangle 5. |
| 17. |
| Copy circle 16 two times, to the lower angular point of triangle 2 and the upper angular point of triangle 3. |
| 18. |
| Draw the connecting line between the intersections of circles 1 and 11. |
| 19. |
| Construct a circle concentric to circle 1, tangent to line 18. |
| 20. |
| Construct a circle centered at the upper intersection of circle 1 and the vertical centerline, tangent to circle 19 at the upper side. |
| 21. |
| Construct a circle concentric to circle 1, tangent to circle 20 at the upper side. |
| 22. |
| Construct the inscribed equilateral triangle of circle 21, pointing down. |
| 23. |
| Construct a circle centered at the lower intersection of circle 20 and the vertical centerline, tangent to it at the upper side. |
| 24. |
| Copy circle 23 to the intersection of the upper side of triangle 22 and the vertical centerline. |
| 25. |
| Construct a circle concentric to circle 1, tangent to circle 24 at the lower side. |
| 26. |
| Construct the circumscribed equilateral triangle of circle 25, pointing down. |
| 27. |
| Circles 7, 10, 11, 15, 17, 19 and 21, and triangles 22 and 26, are used for the final reconstruction. |
| 28. |
| Remove all parts not visible within the formation itself. |
| 29. |
| Colour all areas corresponding to standing... |
| 30. |
| ...or to flattened crop, and finish the reconstruction of the 2011 Burderop Down formation. |
| 31. |
| The final result, matched with the aerial image. |
| Copyright © 2011, Zef Damen, The Netherlands |
