AMRNodeElliptic user guide: On rectangular problem domains Page: 7 of 49
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2.1 The class NodeFArrayBox
The NodeFArrayBox class is a wrapper for a node-centered FArrayBox. This class is used
in LevelData<NodeFArrayBox> with an underlying cell-centered DisjointBoxLayout.
The reason for introducing a new NodeFArrayBox class, instead of just using node-
centered FArrayBoxes, is to allow the use of LevelData. A LevelData<FArrayBox>
based on node-centered FArrayBoxes would have an underlying DisjointBoxLayout of
node-centered boxes, and no two of the boxes could be adjacent, because if they were,
they would share points, and the layout would not be disjoint. To get around this problem,
we use a cell-centered DisjointBoxLayout and build a LevelData<NodeFArrayBox>
on it, with the data located at the surrounding nodes of the cell-centered grids. Data
at nodes shared by two or more grids is stored redundantly in all of the corresponding
The API for NodeFArrayBox is as follows.
Default constructor. User must subsequently call define.
const Box& a_bx,
int a_nComp = 1)
Creates a NodeFArrayBox object.
- abx specifies the cell-centered box. The data lie on the surrounding nodes of
- anComp specifies the number of components of the FArrayBox.
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McCorquodale, Peter. AMRNodeElliptic user guide: On rectangular problem domains, report, April 15, 2003; Berkeley, California. (https://digital.library.unt.edu/ark:/67531/metadc734889/m1/7/: accessed April 24, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.