StencilElement
A code block describing a stencil element in MultiField updaters that use a user-defined stencil. The updater is:
minDim (optional integer, default = 1)
If the dimension of the simulation is less than minDim
,
the element will not be used in the stencil.
rowFieldIndex (required integer)
The index of the field to which this stencil element maps. Thus, when treating the stencil operation as a matrix, a value in this field corresponds to a matrix row.
columnFieldIndex (required integer)
The index of the field from which this stencil element maps. Thus, when treating the stencil operation as a matrix, a value in this field corresponds to a matrix column.
cellOffset (required integer vector)
The offset between the field component the stencil element maps to
and the field component the element maps from. Thus, a
cellOffset
of [\(m\) \(n\) \(p\)] means that
a cell will be updated from a cell displaced by \(m\Delta x +
n\Delta y + p\Delta z\).
value (required float)
The coefficient of the linear operation between the the mapped field values. Thus, when treating the stencil operation as a matrix, this is the value of the matrix entry.