Method create_from_flat

src/db/db/dbDeepShapeStore.cc:599–647

}

DeepLayer DeepShapeStore::create_from_flat (const db::Region &region, bool for_netlist, double max_area_ratio, size_t max_vertex_count, const db::ICplxTrans &trans)
{
  //  reuse existing layer
  std::pair<bool, DeepLayer> lff = layer_for_flat (region);
  if (lff.first) {
    return lff.second;
  }

  require_singular ();

  unsigned int layer = init_layer (layout (), region.iter ());

  //  attempt to initialize the layer properties

  if (max_area_ratio == 0.0) {
    max_area_ratio = m_state.max_area_ratio ();
  }
  if (max_vertex_count == 0) {
    max_vertex_count = m_state.max_vertex_count ();
  }

  db::Shapes *shapes = &initial_cell ().shapes (layer);
  db::Box world = db::Box::world ();

  //  try to maintain the texts on top level - go through shape iterator
  std::pair<db::RecursiveShapeIterator, db::ICplxTrans> ii = region.begin_iter ();
  db::ICplxTrans ttop = trans * ii.second;

  //  The chain of operators for producing clipped and reduced polygon references
  db::PolygonReferenceHierarchyBuilderShapeReceiver refs (&layout (), text_enlargement (), text_property_name ());
  db::ReducingHierarchyBuilderShapeReceiver red (&refs, max_area_ratio, max_vertex_count, m_state.reject_odd_polygons ());

  while (! ii.first.at_end ()) {

    if (for_netlist && ii.first->is_text () && ii.first.layout () && ii.first.cell () != ii.first.top_cell ()) {
      //  Skip texts on levels below top cell. For the reasoning see the description of this method.
    } else {
      red.push (*ii.first, ii.first.prop_id (), ttop * ii.first.trans (), world, 0, shapes);
    }

    ++ii.first;

  }

  DeepLayer dl (this, 0 /*singular layout index*/, layer);
  m_layers_for_flat [tl::id_of (region.delegate ())] = std::make_pair (dl.layout_index (), dl.layer ());
  m_flat_region_id [std::make_pair (dl.layout_index (), dl.layer ())] = tl::id_of (region.delegate ());
  return dl;
}

DeepLayer DeepShapeStore::create_from_flat (const db::Edges &edges, const db::ICplxTrans &trans)
{