2006 Barbury Castle formation
Photo by: Janet Ossebaard
|
Reconstruction of the 2006 Barbury Castle formation | ||
| 1. |
| Draw a circle. Draw and extend the horizontal and vertical centerlines. |
| 2. |
| Construct the inscribed regular 13-sided polygon of circle 1, pointing up. |
| 3. |
| Draw the connecting line between the upper left and upper right angular points of polygon 2, as shown. |
| 4. |
| Construct a circle concentric to circle 1, tangent to line 3. |
| 5. |
| Construct a circle centered at the upper intersection of circle 1 and the vertical centerline, tangent to circle 1 at the lower side. |
| 6. |
| Construct a circle concentric to circle 5, tangent to circle 4 at the lower side. |
| 7. |
| Construct a circle centered at the lower intersection of circle 1 and the vertical centerline, tangent to circle 5 at the upper side. |
| 8. |
| Construct a circle concentric to circle 7, tangent to circle 6 at the upper side. |
| 9. |
| Construct a circle centered at the upper intersection of circle 1 and the vertical centerline, tangent to circle 7 at the lower side. |
| 10. |
| Construct a circle concentric to circle 9, tangent to circle 8 at the lower side. |
| 11. |
| Draw two lines parallel to the horizontal centerline, tangent to circles 1 and 4 at the upper sides, extended to the right up to circle 9, as shown. |
| 12. |
| Construct the inscribed regular 13-sided polygon of circle 6, pointing up. |
| 13. |
| Draw the thirteen rays from the center of circle 6 to the angular points of polygon 12. |
| 14. |
| Draw six rays, from the center of circle 1 to the intersections of circle 6 and six consecutive rays 13, starting with the upper one, counting clockwise, as shown. |
| 15. |
| Draw six lines, from the intersections of circle 6 and rays 14, tangent to circle 4 at the righthand side. |
| 16. |
| Construct the inscribed regular 26-sided polygon of circle 8, pointing up. |
| 17. |
| Draw the twenty-six rays from the center of circle 8 to the angular points of polygon 16. |
| 18. |
| Draw thriteen rays, from the center of circle 1 to the intersections of circle 8 and thirteen consecutive rays 17, starting with the lower one, counting clockwise, as shown. |
| 19. |
| Draw thirteen lines, from the intersections of circle 8 and rays 18, tangent to circle 4 at the lefthand and upper side. |
| 20. |
| Construct the inscribed regular 38-sided polygon of circle 10, pointing down. |
| 21. |
| Draw the thirty-eight rays from the center of circle 10 to the angular points of polygon 20. |
| 22. |
| Draw nine rays, from the center of circle 1 to the intersections of circle 10 and nine consecutive rays 21, starting with the righthand one just above the horizontal centerline, counting clockwise, as shown. |
| 23. |
| Draw nine lines, from the intersections of circle 10 and rays 22, tangent to circle 4 at the lower side. |
| 24. |
| Circles 1, 5, 6, 7, 8, 9 and 10, and lines 11, 14, 15, 18, 19, 22 and 23 make up all necessary elements 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 will finish the reconstruction of the 2006 Barbury Castle formation. |
| 28. | Photo by: Janet Ossebaard | The final result, matched with the aerial image. |
| Copyright © 2006, Zef Damen, The Netherlands |
