2017 Hackpen Hill formation
|
Reconstruction of the 2017 Hackpen Hill formation | ||
| 1. |
| Draw a circle. Draw the horizontal and vertical centerlines. |
| 2. |
| Construct the inscribed dodecagon (regular 12-sided polygon) of circle 1, pointing up. |
| 3. |
| Construct the inscribed circle of dodecagon 2. |
| 4. |
| Construct the inscribed hexagon (regular 6-sided polygon) of circle 3, pointing to the right. |
| 5. |
| Construct the inscribed hexagon of circle 3, pointing up. |
| 6. |
| Draw twelve rays, from the center of circle 1 to the angular points of hexagons 4 and 5. |
| 7. |
| Construct the inscribed equilateral triangle of circle 3, pointing to the left. |
| 8. |
| Construct the inscribed equilateral triangle of circle 3, pointing to the right. |
| 9. |
| Construct a circle centered at the midpoint of the righthand side of triangle 7, tangent to the righthand side of hexagon 5. |
| 10. |
| Copy circle 9 to the center of circle 1. |
| 11. |
| Construct the inscribed dodecagon of circle 10, pointing up. |
| 12. |
| Draw two lines, from the upper intersection of triangles 7 and 8 to the upper lefthand and righthand angular points of dodecagon 11. |
| 13. |
| Repeat step 12 five times, with respect to the other intersections of triangles 7 and 8, and the corresponding angular points of dodecagon 11, as shown. |
| 14. |
| Construct a circle centered at the top of dodecagon 11, passing through its upper righthand angular point. |
| 15. |
| Copy circle 14 six times, to the angular points of hexagon 5. |
| 16. |
| Circles 1, 3, and 15, lines 6, 12, and 13, triangles 7 and 8, and dodecagon 11, are used for the final reconstruction. |
| 17. |
| Remove all parts not visible within the formation itself. |
| 18. |
| Colour all areas corresponding to standing... |
| 19. |
| ...or to flattened crop, and finish the reconstruction of the 2017 Hackpen Hill formation. |
| 20. |
| The final result, matched with the aerial image. |
| Copyright © 2017, Zef Damen, The Netherlands |
