Reconstruction of the 2016 Großziethen (Germany) formation | ||
1. | Draw a circle. Draw the horizontal and vertical centerlines. | |
2. | Copy circle 1 two times, to the righthand and upper intersections of circle 1 and the horizontal and vertical centerlines. | |
3. | Draw the connecting line between the mutual intersections of circles 2. | |
4. | Construct the inscribed dodecagon (regular 12-sided polygon) of circle 1, with one angular point on line 3. | |
5. | Construct the inscribed circle of dodecagon 4. | |
6. | Construct a circle, passing through the upper and adjacent righthand intersections of dodecagon 4 and circle 5, and tangent to line 3. | |
7. | Copy circle 6 to the center of circle 1. | |
8. | Draw the twelve rays of dodecagon 4, from the center to the angular points. | |
9. | Construct the inscribed hexagon (regular 6-sided polygon) of circle 5, pointing up. | |
10. | Construct a "two-points" circle (defined by the two end-points of a centerline) between the upper angular point of hexagon 9 and the lower intersection of circle 7 and the vertical centerline. | |
11. | Copy circle 10 five times, by repeating step 10 with respect to the other angular points of hexagon 9. | |
12. | Construct the inscribed hexagon of circle 5, pointing to the right. | |
13. | Construct a "two-points" circle between the righthand angular point of hexagon 12 and the lefthand intersection of circle 7 and the horizontal centerline. | |
14. | Copy circle 13 five times, by repeating step 13 with respect to the other angular points of hexagon 12. | |
15. | Circles 1, 5, 7, 10, 11, 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 2016 Großziethen (Germany) formation. | |
19. | The final result, matched with the aerial image. |
Copyright © 2016, Zef Damen, The Netherlands |