2007 Oliver's Castle formation
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Reconstruction of the 2007 Oliver's Castle formation | ||
| 1. |
| Draw a circle. Draw and extend the horizontal and vertical centerlines. |
| 2. |
| Construct the inscribed pentagon (regular 5-sided polygon) of circle 1, pointing up. |
| 3. |
| Construct the inscribed circle of pentagon 2. |
| 4. |
| Construct a "two-points" circle (defined by the two end-points of a centerline) with the points at the lefthand intersections of circles 1 and 3 with the horizontal centerline. |
| 5. |
| Copy circle 4 to the lefthand intersection of circle 3 and the horizontal centerline and move this circle (copy and delete original) to its own righthand intersection with the horizontal centerline, as shown. |
| 6. |
| Construct a circle centered at the intersection of the lower side of pentagon 2 and the vertical centerline, passing through the lower righthand angular point of this pentagon. |
| 7. |
| Copy circle 6 to the center of circle 1. |
| 8. |
| Construct a two-points circle through the lefthand intersection of circle 7 and the righthand intersection of circle 5, both with the horizontal centerline. See detail. |
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| 9. |
| Copy circle 8 to the center of circle 1. |
| 10. |
| Copy circle 4 to the lefthand intersection of circle 9 and the horizontal centerline and move it to its own corresponding intersection. See detail. |
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| 11. |
| Copy circle 4 to the lefthand intersection of circle 10 and the horizontal centerline and move it to its own corresponding intersection. |
| 12. |
| Copy circle 8 to the lefthand intersection of circle 11 and the horizontal centerline. |
| 13. |
| Copy circle 4 to the center of circle 1 and move it to its righthand intersection with the horizontal centerline. |
| 14. |
| Copy circle 4 to the righthand intersection of circle 13 and the horizontal centerline and move it to its own corresponding intersection. |
| 15. |
| Copy circle 1 to the lefthand intersection of circle 8, and move it to its own righthand intersection, both with the horizontal centerline. See detail. |
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| 16. |
| Copy circle 1 to the lefthand intersection of circle 12, and move it to its own righthand intersection, both with the horizontal centerline. See detail. |
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| 17. |
| Copy circle 1 to the lefthand intersection of circle 10, and move it to its own righthand intersection, both with the horizontal centerline. |
| 18. |
| Copy circle 1 to the lefthand intersection of circle 9, and move it to its own righthand intersection, both with the horizontal centerline. See detail. |
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| 19. |
| Copy circle 1 to the righthand intersection of circle 13, and move it to its own righthand intersection, both with the horizontal centerline. |
| 20. |
| Copy circle 1 to the righthand intersection of circle 14, and move it to its own righthand intersection, both with the horizontal centerline. |
| 21. |
| Copy circle 1 to the righthand intersection of circle 7, and move it to its own righthand intersection, both with the horizontal centerline. |
| 22. |
| Construct a circle concentric to circle 15, tangent to circle 7 at the lefthand side. |
| 23. |
| Copy circle 22 six times, to the centers of circles 16, 17, 18, 19, 20 and 21. |
| 24. |
| Circles 1, 3, 15, 16, 17, 18, 19, 20, 21, 22 and 23 together make up all that is necessary for the final reconstruction. |
| 25. |
| Remove all parts not visible in the formation itself. |
| 26. |
| Colour all areas corresponding to standing... |
| 27. |
| ...or to flattened crop. This finishes the reconstruction of the 2007 Oliver's Castle formation. |
| 28. |
| The final result, matched with the aerial image. |
| Copyright © 2007, Zef Damen, The Netherlands |
