2020 Ackling Dyke formation
|
Reconstruction of the 2020 Ackling Dyke formation | ||
| 1. |
| Draw a circle. Draw the horizontal and vertical centerlines. |
| 2. |
| Construct the inscribed regular 14-sided polygon of circle 1, pointing up. |
| 3. |
| Draw the fourteen rays of polygon 2, from the center to the angular points. Number these rays clockwise 1 - 14, starting at the top. |
| 4. |
| Draw the connecting line between the righthand intersection of circle 1 and the horizontal centerline, and the intersection of circle 1 and ray 3 nr. 1. |
| 5. |
| Construct a circle concentric to circle 1, tangent to line 4. |
| 6. |
| Repeat step 4 thirteen times, with respect to the other rays 3 and corresponding positions, as shown. |
| 7. |
| Construct a circle centered at the intersection of circle 5 and ray 3 nr. 2, passing through the intersection of line 4 and ray 3 nr. 2. |
| 8. |
| Copy circle 7 to the upper intersection of circle 1 and the vertical centerline. |
| 9. |
| Construct a circle concentric to circle 1, tangent to circle 8 at the lower side. |
| 10. |
| Draw the connecting line between the righthand intersection of circle 1 and the horizontal centerline, and the intersection of circle 9 and ray 3 nr. 14. |
| 11. |
| Construct a circle concentric to circle 1, tangent to line 10. |
| 12. |
| Draw the connecting line between the intersections of circle 11 with rays 3 nrs. 1 and 7. |
| 13. |
| Repeat step 12 six times, with respect to the pairs of rays 3 nrs. 3 and 9, 5 and 11, 7 and 13, 9 and 1, 11 and 3, and 13 and 5. |
| 14. |
| Circles 1, 5, and 9, and lines 3, 4, 6, 12, and 13, are used for the final reconstruction. |
| 15. |
| Remove all parts not visible within the formation itself. |
| 16. |
| Colour all areas corresponding to standing... |
| 17. |
| ...or to flattened crop, and finish the reconstruction of the 2020 Ackling Dyke formation. |
| 18. |
| The final result, matched with the aerial image. |
| Copyright © 2020, Zef Damen, The Netherlands |
