Reconstruction of theBarbury Castle 14-07-2006 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. High resolution dwf-file | ||||

26. |
Colour all areas corresponding to standing... High resolution dwf-file | ||||

27. |
...or to flattened crop. This will finish the reconstruction of the Barbury Castle formation of 14-07-2006. High resolution dwf-file | ||||

28. |
Photo courtesy: Janet Ossebaard | The final result, matched with the aerial image. | |||

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Copyright © 2006, Zef Damen, The Netherlands Personal use only, commercial use prohibited. | |||||