01
Contour Lines
Draw contour lines from a 6 × 6 grid of elevations — pick the levels, see every edge interpolation worked out, and switch between straight and smooth lines.
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02
Cut and Fill Grid
Set a design elevation for a 25 ft × 25 ft site and get cut and fill volumes cell by cell, with totals in ft³ and yd³ and a balance-elevation button.
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