introduce linear interpolation for cell-centered background mesh

jsitaraman / tioga

Tioga is a library for overset grid assembly on parallel distributed systems

GNU Lesser General Public License v3.0

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introduce linear interpolation for cell-centered background mesh #17

Closed ashesh2512 closed 4 years ago

ashesh2512 commented 4 years ago

This pull request introduces linear interpolation for the background Cartesian mesh where the solution is cell-centered. The linear interpolation is used by default if (donor_frac == nullptr) && (pdegree == 0). The interpolation is modeled after a FE brick element where the nodes are neighboring cell centers.