118     PetscInt     li, nxi, n;  in DMCreateInterpolation_DA_1D_Q1()  local
124     for (li = 0; li < nxi; li++) xi[li] = -1.0 + (PetscScalar)li * (2.0 / (PetscScalar)(nxi - 1));  in DMCreateInterpolation_DA_1D_Q1()
132       li = i - ratio * (i / ratio);  in DMCreateInterpolation_DA_1D_Q1()
133       if (i == mx - 1) li = nxi - 1;  in DMCreateInterpolation_DA_1D_Q1()
139       if ((li == 0) || (li == nxi - 1)) {  in DMCreateInterpolation_DA_1D_Q1()
152       Ni[0] = 0.5 * (1.0 - xi[li]);  in DMCreateInterpolation_DA_1D_Q1()
153       Ni[1] = 0.5 * (1.0 + xi[li]);  in DMCreateInterpolation_DA_1D_Q1()
408     PetscInt     li, nxi, lj, neta;  in DMCreateInterpolation_DA_2D_Q1()  local
415     for (li = 0; li < nxi; li++) xi[li] = -1.0 + (PetscScalar)li * (2.0 / (PetscScalar)(nxi - 1));  in DMCreateInterpolation_DA_2D_Q1()
428         li = i - ratioi * (i / ratioi);  in DMCreateInterpolation_DA_2D_Q1()
429         if (i == mx - 1) li = nxi - 1;  in DMCreateInterpolation_DA_2D_Q1()
437         if ((li == 0) || (li == nxi - 1)) {  in DMCreateInterpolation_DA_2D_Q1()
455         Ni[0] = 0.25 * (1.0 - xi[li]) * (1.0 - eta[lj]);  in DMCreateInterpolation_DA_2D_Q1()
456         Ni[1] = 0.25 * (1.0 + xi[li]) * (1.0 - eta[lj]);  in DMCreateInterpolation_DA_2D_Q1()
457         Ni[2] = 0.25 * (1.0 - xi[li]) * (1.0 + eta[lj]);  in DMCreateInterpolation_DA_2D_Q1()
458         Ni[3] = 0.25 * (1.0 + xi[li]) * (1.0 + eta[lj]);  in DMCreateInterpolation_DA_2D_Q1()
914     PetscInt     li, nxi, lj, neta, lk, nzeta, n;  in DMCreateInterpolation_DA_3D_Q1()  local
924     for (li = 0; li < nxi; li++) xi[li] = -1.0 + (PetscScalar)li * (2.0 / (PetscScalar)(nxi - 1));  in DMCreateInterpolation_DA_3D_Q1()
939           li = i - ratioi * (i / ratioi);  in DMCreateInterpolation_DA_3D_Q1()
940           if (i == mx - 1) li = nxi - 1;  in DMCreateInterpolation_DA_3D_Q1()
950           if ((li == 0) || (li == nxi - 1)) {  in DMCreateInterpolation_DA_3D_Q1()
976           Ni[0] = 0.125 * (1.0 - xi[li]) * (1.0 - eta[lj]) * (1.0 - zeta[lk]);  in DMCreateInterpolation_DA_3D_Q1()
977           Ni[1] = 0.125 * (1.0 + xi[li]) * (1.0 - eta[lj]) * (1.0 - zeta[lk]);  in DMCreateInterpolation_DA_3D_Q1()
978           Ni[2] = 0.125 * (1.0 - xi[li]) * (1.0 + eta[lj]) * (1.0 - zeta[lk]);  in DMCreateInterpolation_DA_3D_Q1()
979           Ni[3] = 0.125 * (1.0 + xi[li]) * (1.0 + eta[lj]) * (1.0 - zeta[lk]);  in DMCreateInterpolation_DA_3D_Q1()
981           Ni[4] = 0.125 * (1.0 - xi[li]) * (1.0 - eta[lj]) * (1.0 + zeta[lk]);  in DMCreateInterpolation_DA_3D_Q1()
982           Ni[5] = 0.125 * (1.0 + xi[li]) * (1.0 - eta[lj]) * (1.0 + zeta[lk]);  in DMCreateInterpolation_DA_3D_Q1()
983           Ni[6] = 0.125 * (1.0 - xi[li]) * (1.0 + eta[lj]) * (1.0 + zeta[lk]);  in DMCreateInterpolation_DA_3D_Q1()
984           Ni[7] = 0.125 * (1.0 + xi[li]) * (1.0 + eta[lj]) * (1.0 + zeta[lk]);  in DMCreateInterpolation_DA_3D_Q1()