2001 Avebury Trusloe formation
|
Reconstruction of the 2001 Avebury Trusloe formation | ||
| 1. |
| Draw a circle. Draw the horizontal and vertical centerlines. |
| 2. |
| Construct the inscribed hexagon (6-sided regular polygon) of circle 1, pointing to the right. |
| 3. |
| Construct the inscribed circle of hexagon 2. |
| 4. |
| Construct the circumscribed hexagon of circle 1, also pointing to the right. |
| 5. |
| Construct the circumscribed hexagon of hexagon 4, pointing up. |
| 6. |
| Construct the circumscribed hexagon of hexagon 5, again pointing to the right. |
| 7. |
| Construct the circumscribed circle of hexagon 6. |
| 8. |
| Extend the horizontal and vertical centerlines of circle 1 up to circle 7. Draw the other diagonals of hexagon 6. |
| 9. |
| Copy circle 7 to the intersection on the right of circle 3 and the horizontal centerline. |
| 10. |
| Repeat this for the intersections of circle 3 with the other rays of hexagon 6. |
| 11. |
| Cut off all parts of circles 9 and 10 outside the shown mutual intersections, such that six arcs remain. |
| 12. |
| Construct a circle, centered at the intersection on the right of circle 3 and the horizontal centerline, passing through the intersections of the vertical centerline and hexagon 6. |
| 13. |
| Copy circle 12 to the intersections of circle 3 with the other rays of hexagon 6. |
| 14. |
| Cut off all parts of circles 12 and 13, except for the arcs between the indicated intersections of these circles and arcs 11. |
| 15. |
| Construct a circle, concentric to circle 1, passing through the common end-points of arcs 11. |
| 16. |
| Copy circle 1 to the shown intersection on the left of the horizontal centerline and arcs 11. |
| 17. |
| Copy circle 15 to the intersection on the right of circle 16 and the horizontal centerline. |
| 18. |
| Construct a circle, concentric to circle 1, tangent to circle 17 at the far end. |
| 19. |
| Construct a circle, centered at the intersection on the right of circle 3 and the horizontal centerline, tangent to circle 18 at the near side. |
| 20. |
| Copy circle 19 to the intersection on the right of circle 15 and the horizontal centerline. |
| 21. |
| Construct a circle, concentric to circle 1, tangent to circle 20 at the far end. |
| 22. |
| Circles 1, 18 and 21, and arcs 11 and 14 form all necessary parts for the reconstruction. |
| 23. |
| Removing all unused parts and making black areas corresponding to standing crop finish the reconstruction of the 2001 Avebury Trusloe formation. |
| 24. |
| The final result, matched with the aerial image. |
| Copyright © 2001, Zef Damen, The Netherlands |
