2018 Baggwilgraben (Switzerland) formation
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Reconstruction of the 2018 Baggwilgraben (Switzerland) formation | ||
| 1. |
| Draw a circle. Draw the horizontal and vertical centerlines. |
| 2. |
| Construct the inscribed hexagon (regular 6-sided polygon) of circle 1, pointing to the right. |
| 3. |
| Construct the inscribed circle of hexagon 2. |
| 4. |
| Construct the inscribed dodecagon (regular 12-sided polygon) of circle 3, pointing up. Number the angular points clockwise 1 - 12, starting at the top. |
| 5. |
| Draw the twelve rays of circle 3, to the angular points of dodecagon 4. |
| 6. |
| Draw the diagonal of dodecagon 4 between angular points nrs. 3 and 11. |
| 7. |
| Construct a circle concentric to circle 1, tangent to diagonal 6. |
| 8. |
| Construct the inscribed hexagon of circle 7, pointing up. |
| 9. |
| Construct the inscribed circle of hexagon 8. |
| 10. |
| Construct the inscribed hexagon of circle 9, pointing to the right. |
| 11. |
| Construct the inscribed circle of hexagon 10. |
| 12. |
| Construct a circle, passing through angular point nr. 1, and passing through the intersections of circle 9 and rays 5 nrs. 4 and 10. |
| 13. |
| Construct a circle concentric to circle 12, passing through angular point nr. 2. |
| 14. |
| Repeat steps 12 and 13 eleven times, with respect to the other angular points (nrs, 2 - 12) of dodecagon 4. |
| 15. |
| Circles 1, 11, 12, 13, and 14, are used for the final reconstruction. |
| 16. |
| Remove all parts not visible within the formation itself. |
| 17. |
| Colour all areas corresponding to standing... |
| 18. |
| ...or to flattened crop, and finish the reconstruction of the 2018 Baggwilgraben formation. |
| 19. |
| The final result, matched with the aerial image. |
| Copyright © 2018, Zef Damen, The Netherlands |
