2023 Roundway Down formation
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Reconstruction of the 2023 Roundway Down formation | ||
| 1. |
| Draw a circle. Draw and extend the horizontal and vertical centerlines. |
| 2. |
| Draw a line from the center of circle 1 to its righthand intersection with the horizontal centerline, and divide this line into twenty-five equal parts. Number the division-nodes 1 - 24 from the center to the right. See detail. |
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| 3. |
| Construct fourteen circles concentric to circle 1, passing through nodes 2 nrs. 5 - 17, and 21. |
| 4. |
| Construct a "two-points" circle (defined by the two end-points of a centerline) between nodes 2 nrs. 22 and 23. |
| 5. |
| Construct a circle concentric to circle 1, passing through the center of circle 4. |
| 6. |
| Construct the circumscribed square of circle 5, with the sides horizontally and vertically. Draw the two diagonals between opposite angular points. |
| 7. |
| Construct a circle concentric to circle 1, passing through node 2 nr. 1. |
| 8. |
| Copy circle 7 four times, to the angular points of square 6. |
| 9. |
| Construct two pairs of lines, parallel to the diagonals of square 6, tangent to circles 8, at both sides, as shown. |
| 10. |
| Construct a circle centered at the righthand intersection of circle 1 and the horizontal centerline, passing through node 2 nr. 22. Move this circle (copy and delete original) to its own corresponding intersection. |
| 11. |
| Construct a circle centered at the righthand intersection of circle 1 and the horizontal centerline, passing through node 2 nr. 23. |
| 12. |
| Copy circle 11 to the righthand intersection of circle 10 and the horizontal centerline. Move this circle to its own corresponding intersection. |
| 13. |
| Copy circles 10 and 12 three times, to the corresponding positions with respect to the other sides of square 6. |
| 14. |
| Circles 1, 3, 10, 12, and 13, square 6, and lines 9, are used for the final reconstruction. |
| 15. |
| Remove all parts not visible within the formation itself. |
| 16. |
| Colour all areas corresponding to standing... |
| 17. |
| ...or to flattened crop, and finish the reconstruction of the 2023 Roundway Down formation. |
| 18. |
| The final result, matched with the aerial image. |
| Copyright © 2023, Zef Damen, The Netherlands |
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