218 static PetscErrorCode PerturbMesh(DM *mesh, PetscScalar *coordVals, PetscInt npoints, PetscInt dim)  in PerturbMesh()  argument
241       coordVals[dim * i + j] += amp;  in PerturbMesh()
250 static PetscErrorCode SkewMesh(DM *mesh, PetscScalar *coordVals, PetscInt npoints, PetscInt dim)  in SkewMesh()  argument
276       for (k = 0; k < dim; ++k) tmpcoord[j] += coordVals[dim * i + k] * transMat[dim * k + j];  in SkewMesh()
278     for (l = 0; l < dim; ++l) coordVals[dim * i + l] = tmpcoord[l];  in SkewMesh()
290   PetscScalar *coordVals;  in TransformMesh()  local
295   PetscCall(VecGetArray(coords, &coordVals));  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()
314   PetscCall(VecRestoreArray(coords, &coordVals));  in TransformMesh()