The !CoarseFine1D Subroutine

The !CoarseFine1D subroutine in FixUp sets the Info%!ChildSign1D to -1 at coarse/fine interfaces, 1 at fine/coarse interfaces, and 0 elsewhere

Input Parameters

• n: Refers to the direction of the current slice
• indx: contains the indices for the slice in the n-direction
• extlow: contains the lower index in the n-direction
• exthigh: contains the upper index in the n-direction
• Info%ChildMask: contains an integer that is 1 if a cell is refined and 0 if not.

Output Parameters

• Info%ChildSign1D: an integer that is -1 at coarse/fine interfaces, 1 at fine/coarse interfaces, and 0 elsewhere