218 static PetscErrorCode PerturbMesh(DM *mesh, PetscScalar *coordVals, PetscInt npoints, PetscInt dim)  in PerturbMesh()  argument
232 …m; ++k) maxPert[k] = 0.025 * (maxCoords[k] - minCoords[k]) / (PetscPowReal(npoints, 1. / dim) - 1);  in PerturbMesh()
234   for (i = 0; i < npoints; ++i) {  in PerturbMesh()
250 static PetscErrorCode SkewMesh(DM *mesh, PetscScalar *coordVals, PetscInt npoints, PetscInt dim)  in SkewMesh()  argument
273   for (i = 0; i < npoints; ++i) {  in SkewMesh()
289   PetscInt     dim, npoints;  in TransformMesh()  local
296   PetscCall(VecGetLocalSize(coords, &npoints));  in TransformMesh()
298   npoints = npoints / dim;  in TransformMesh()
302     PetscCall(PerturbMesh(mesh, coordVals, npoints, dim));  in TransformMesh()
305     PetscCall(SkewMesh(mesh, coordVals, npoints, dim));  in TransformMesh()
308     PetscCall(SkewMesh(mesh, coordVals, npoints, dim));  in TransformMesh()
309     PetscCall(PerturbMesh(mesh, coordVals, npoints, dim));  in TransformMesh()