2011 Stonehenge (3) formation
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Reconstruction of the 2011 Stonehenge (3) formation | ||
| 1. |
| Draw a circle. Draw and extend the horizontal and vertical centerlines. |
| 2. |
| Construct the circumscribed hexagon (regular 6-sided polygon) of circle 1, pointing to the right. |
| 3. |
| Construct the circumscribed circle of hexagon 2. |
| 4. |
| Construct the inscribed equilateral triangle of circle 3, pointing down. |
| 5. |
| Construct the inscribed equilateral triangle of circle 3, pointing up. |
| 6. |
| Construct a circle centered at the mid-point of the upper side of triangle 4, passing through the intersection of this side with the upper righthand side of triangle 5. |
| 7. |
| Copy circle 6 two times, to the mid-points of the other sides of triangle 4. |
| 8. |
| Construct a "two-points" circle (defined by the two end-points of a centerline) between the upper intersections of circles 1 and 6 with the vertical centerline. |
| 9. |
| Construct a circle concentric to circle 6, passing through the center of circle 8. |
| 10. |
| Copy circle 9 two times, to the centers of circles 7. |
| 11. |
| Construct a circle concentric to circle 1, passing through the center of circle 8. |
| 12. |
| Construct a circle centered at the top of triangle 5, tangent to the upper side of triangle 4. |
| 13. |
| Construct a circle centered at the intersection of circle 12 and the upper righthand side of triangle 5, tangent to circle 6 at the righthand side. See detail. |
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| 14. |
| Copy circle 13 to the top of triangle 5. |
| 15. |
| Construct a circle concentric to circle 1, tangent to circle 14 at the lower side. |
| 16. |
| Copy circle 8 to the upper intersection of circle 15 and the vertical centerline. |
| 17. |
| Construct a circle concentric to circle 1, tangent to circle 16 at the lower side. |
| 18. |
| Construct a (small) circle centered at the intersection of the upper side of triangle 4 and the upper lefthand side of hexagon 2, passing through the lefthand intersection of the same side with circle 1. See detail. |
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| 19. |
| Copy circle 18 to the center of circle 1. |
| 20. |
| Copy circle 18 another twelve times, to the angular points of hexagon 2 and of triangles 4 and 5. |
| 21. |
| Construct twelve pairs of parallel lines, pairwise tangent to circle 19 and each of circles 20, all at both sides, as shown. See detail. |
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| 22. |
| Circles 1, 6, 7, 9, 10, 11, 15 and 17, and lines 21, are used for the final reconstruction. |
| 23. |
| Remove all parts not visible within the formation itself. |
| 24. |
| Colour all areas corresponding to standing... |
| 25. |
| ...or to flattened crop, and finish the reconstruction of the 2011 Stonehenge (3) formation. |
| 26. |
| The final result, matched with the aerial image. |
| Copyright © 2011, Zef Damen, The Netherlands |
