To calculate volumes between Surfaces using a grid pattern:
•Click Surface Model > Volumes > Grid Volume; or
•Click the Grid Volume Button.
•Enter the volume calculation parameters on the Grid Volume Dialog.
oVolume Surface: The Surface used to calculate the volume.
oBase Surface: The Surface used to calculate the volume from.
oGrid Spacing: The spacing between grid points.
•Click OK.
•Results are displayed on the Cut/Fill Dialog.