The results of our survey to determine if you preferred splash (hachure) contours or concentric lines to represent elevation on General Staff maps are in: 58.21% voted for concentric contour lines and 41.79% voted for splash or hachure contour lines.

However, while waiting for the results of the survey we wound up writing a splash (hachure) contour algorithm anyway:

This isn’t perfect and we’ll continue to optimize it. However, General Staff will now include both methods of displaying elevation on a map: splash (hachure) and concentric elevation lines.