Linear Interpolation Calculator
0:00:00 Result of the work
0:00:04 Data entry
0:00:28 Set the interpolation step (5 m) from Sta 0+140 to Sta 0+180
0:00:35 remove the excess
0:00:37 finding a Station by elevation
0:00:43 putting a mark on the execution (tick)
0:00:45 viewing the graph
0:00:51 correction input (horizontal line)
0:00:58- export to TXT
learn more at stadiamark.almagest.name
https://play.google.com/store/apps/details?id=com.kurantsov.interpolationstationing