grid_summary()

VDBGridSummary MayaFlux::IO::Detail::VDBArchive::grid_summary

(

size_t

index

)

const

Summarize one grid: name, value kind, transform, active bounds.

Parameters

index

Grid index, less than read_grid_count().

Returns

The summary, or a default-constructed one if index is out of range or nothing is open.

Definition at line 681 of file VDBArchive.cpp.

{
    VDBGridSummary out;
 
    if (!m_state->read_file_open || index >= m_state->read_file.num_grids) {
        return out;
    }
 
    const tvdb_grid_t& grid = m_state->read_file.grids[index];
 
    const char* name = tvdb_grid_name(&m_state->read_file, index);
    out.name = name ? name : "";
 
    const tvdb_value_type_t vt = leaf_value_type(grid);
    out.is_vector = is_vector_type(vt);
    out.narrowed = needs_narrowing(vt);
 
    out.voxel_size = grid_voxel_size(grid.transform);
    out.translation = grid_translation(grid.transform);
 
    BBoxAcc acc;
    tvdb_grid_visit_leaves(&grid, bbox_visit, &acc);
    out.has_active = acc.has_any;
    out.active_min = acc.min;
    out.active_max = acc.max;
 
    out.background_scalar = grid_background_scalar(grid);
    out.background_vector = grid_background_vector(grid);
 
    return out;
}

References index, m_state, name, out, and vt.