Template Class PrimitiveLayer

Defined in File LaneletMap.h

Class Documentation

template<typename T> class PrimitiveLayer

Each primitive in lanelet2 has its own layer in the map.

This template class defines the common interface for these layers. It is only implemented for lanelet primitives and should not be instanciated with any other type.

Layers are an integral part of LaneletMap, they can not be created or modified without a LaneletMap object.

Internally, the elements are identified by their id, therefore it is absolutely important that an id is unique within one layer.

Public Types

using PrimitiveT = T 

using ConstPrimitiveT = traits::ConstPrimitiveType<T>

using Map = std::unordered_map<Id, T>

using ConstPrimitiveVec = std::vector<ConstPrimitiveT>

using PrimitiveVec = std::vector<PrimitiveT>

using OptConstPrimitiveT = Optional<ConstPrimitiveT>

using OptPrimitiveT = Optional<PrimitiveT>

using iterator = internal::TransformIterator<typename Map::iterator, PrimitiveT, internal::PairConverter<PrimitiveT>>: iterator that gives the primitive when dereferencing, not a std:pair

using const_iterator = internal::TransformIterator<typename Map::const_iterator, const ConstPrimitiveT, internal::PairConverter<const ConstPrimitiveT>>: iterator that gives a const primitive, not a std::pair

using ConstSearchFunction = std::function<bool(const internal::SearchBoxT<T> &box, const ConstPrimitiveT &prim)>

using SearchFunction = std::function<bool(const internal::SearchBoxT<T> &box, const PrimitiveT &prim)>

Public Functions

PrimitiveLayer(const PrimitiveLayer &rhs) = delete

PrimitiveLayer &operator=(const PrimitiveLayer &rhs) = delete

bool exists(Id id) const

checks whether an element exists in this layer

Parameters:: id – the id identifying the element
Returns:: true if element exists

ConstPrimitiveT get(Id id) const

returns an element for this id if it exists

Parameters:: id – the id identifying the element
Throws:: NoSuchPrimitiveError – if the element does not exist
Returns:: the const version of the element

PrimitiveT get(Id id)

returns an element for this id if it exists

Parameters:: id – the id identifying the element
Throws:: NoSuchPrimitiveError – if the element does not exist
Returns:: the non-const version of the element

const_iterator find(Id id) const

find returns an iterator to an element if it exists

Note that dereferencing the iterator will give you only the primitive, not a std::pair as usual with normal std::maps!

Parameters:: id – id to look for
Returns:: iterator to the element or end()

std::vector<ConstPrimitiveT> findUsages(const traits::ConstPrimitiveType<traits::OwnedT<PrimitiveT>> &primitive) const

finds usages of an owned type within this layer

Finds e.g. points owned by linestrings in the lanelet layer.