cell_area com compute_point_neighbors ctx dx dy dz_max dz_min FromFile FromOptions get_dm get_mapping_info Grid Grid interpolation_weights kBelowHeight Lx Ly Lz m_impl max_patch_size Mx My Mz operator= periodicity pio_io_decomposition point_neighbors points rank registration report_parameters set_mapping_info Shallow size variables variables x x x0 xm xs y y y0 ym ys z z ~Grid

compute_point_neighbors() void pism::Grid::compute_point_neighbors ( double  X, double  Y, int &  i_left, int &  i_right, int &  j_bottom, int &  j_top  ) const Computes indices of grid points to the lower left and upper right from (X,Y). 3 2 o-------o | | | + | o-------o 0 1 If "+" is the point (X,Y), then (i_left, j_bottom) corresponds to point "0" and (i_right, j_top) corresponds to point "2". Does not check if the resulting indexes are in the current processor's domain. Ensures that computed indexes are within the grid. Definition at line 601 of file Grid.cc. References pism::Grid::Impl::dx, pism::Grid::Impl::dy, m_impl, pism::array::max(), pism::array::min(), pism::Grid::Impl::Mx, pism::Grid::Impl::My, pism::Grid::Impl::x, and pism::Grid::Impl::y. Referenced by interpolation_weights(), and point_neighbors().