2012 Chalk Pit formation
|
Reconstruction of the 2012 Chalk Pit formation | ||
| 1. |
| Draw a circle. Draw and extend the horizontal and vertical centerlines. |
| 2. |
| Construct two inscribed equilateral triangles of circle 1, one pointing to the left, one to the right. |
| 3. |
| Construct a circle passing through the upper and lower mutual intersections of triangles 2 and through the righthand intersection of circle 1 and the horizontal centerline. |
| 4. |
| Construct a circle concentric to circle 1, passing through the upper mutual intersection of triangles 2. |
| 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. |
| 6. |
| Construct a circle centered at the righthand intersection and passing through the lefthand intersection of circle 5 and the horizontal centerline. |
| 7. |
| Construct a circle concentric to circle 1, tangent to circle 6 at the righthand side. |
| 8. |
| Construct a circle concentric to circle 6, tangent to circle 7 at the lefthand side. |
| 9. |
| Construct a circle concentric to circle 1, tangent to circle 8 at the righthand side. |
| 10. |
| Construct a circle concentric to circle 6, tangent to circle 9 at the lefthand side. |
| 11. |
| Construct a circle concentric to circle 1, tangent to circle 10 at the righthand side. |
| 12. |
| Construct a circle concentric to circle 6, tangent to circle 11 at the lefthand side. |
| 13. |
| Construct a circle concentric to circle 1, tangent to circle 12 at the righthand side. |
| 14. |
| Construct a circle concentric to circle 6, tangent to circle 13 at the lefthand side. |
| 15. |
| Construct a circle concentric to circle 1, tangent to circle 14 at the righthand side. |
| 16. |
| Construct a circle concentric to circle 6, tangent to circle 15 at the lefthand side. |
| 17. |
| Construct a circle concentric to circle 1, tangent to circle 16 at the righthand side. |
| 18. |
| Draw a line from the center of circle 1 to the lower lefthand angular point of triangles 2, and extend this line downwards to circle 17. |
| 19. |
| Copy circle 3 to the intersection of circle 17 and line 18. |
| 20. |
| Circles 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 and 19, are used for the final reconstruction. |
| 21. |
| Remove all parts not visible within the formation itself. |
| 22. |
| Colour all areas corresponding to standing... |
| 23. |
| ...or to flattened crop, and finish the reconstruction of the 2012 Chalk Pit formation. |
| 24. |
| The final result, matched with the aerial image. |
| Copyright © 2012, Zef Damen, The Netherlands |
