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view +grid/boundaryIdentifier.txt @ 625:55e6267be117 feature/grids

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Switch to using asserts for error checking
author Jonatan Werpers <jonatan@werpers.com>
date Fri, 20 Oct 2017 23:07:03 +0200
parents 763d50caddf3
children
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A grid.boundaryIdentifier identifies a boundary of a grid.
For a Cartesian grid it is simply 's', 'n', 'w', 'e'.
For a multiblock grid it might be something like {1, 's'}.
For some other grid it will be up to the developer to chose
a good way to identify boundaries.