2018 Devil's Den formation
|
Reconstruction of the 2018 Devil's Den formation | ||
| 1. |
| Draw a circle. Draw and extend the horizontal and vertical centerlines. |
| 2. |
| Construct the inscribed heptagon (regular 7-sided polygon) of circle 1, pointing up. |
| 3. |
| Draw the seven diagonals of heptagon 2 from every angular point to every second angular point, as shown. |
| 4. |
| Construct a circle centered at the top, and passing through the upper righthand angular point of heptagon 2. |
| 5. |
| Copy circle 4 six times, to the other angular points of heptagon 2. |
| 6. |
| Construct a circle centered at the righthand intersection of the horizontal centerline and circle 1, and passing through its intersection with the nearest side of heptagon 2, as shown. |
| 7. |
| Construct a circle concentric to circle 1, tangent to circle 6 at the righthand side. |
| 8. |
| Circles 1, 4, 5, and 7, and lines 3, are used for the final reconstruction. |
| 9. |
| Remove all parts not visible within the formation itself. |
| 10. |
| Colour all areas corresponding to standing... |
| 11. |
| ...or to flattened crop, and finish the reconstruction of the 2018 Devil's Den formation. |
| 12. |
| The final result, matched with the aerial image. |
| Copyright © 2018, Zef Damen, The Netherlands |
