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Merge pull request #2978 from MaelRL/PMap-Fix_Default_pmap-GF 

Property map: fix get() not returning the default value
This commit is contained in:
Sebastien Loriot 2018-05-15 22:09:59 +02:00 committed by GitHub
parent 306d3031ab 288417a9ed
commit 1b84d7402d
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 26 additions and 17 deletions
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10
Classification/include/CGAL/Classification/Point_set_feature_generator.h
View File

@ -496,7 +496,7 @@ private:
launch_feature_computation (new Feature_adder_verticality<VectorMap> (this, normal_map, 0));
}
void generate_normal_based_features(const CGAL::Default_property_map<Iterator, typename GeomTraits::Vector_3>&)
void generate_normal_based_features(const CGAL::Constant_property_map<Iterator, typename GeomTraits::Vector_3>&)
{
generate_multiscale_feature_variant_0<Verticality> ();
}
@ -544,7 +544,7 @@ private:
2, 25.f * float(i), 12.5f));
}
void generate_color_based_features(const CGAL::Default_property_map<Iterator, RGB_Color>&)
void generate_color_based_features(const CGAL::Constant_property_map<Iterator, RGB_Color>&)
{
}
@ -581,7 +581,7 @@ private:
launch_feature_computation (new Feature_adder_echo<EchoMap> (this, echo_map, i));
}
void generate_echo_based_features(const CGAL::Default_property_map<Iterator, std::size_t>&)
void generate_echo_based_features(const CGAL::Constant_property_map<Iterator, std::size_t>&)
{
}
@ -615,10 +615,10 @@ private:
}
template <typename T>
Default_property_map<Iterator, T>
Constant_property_map<Iterator, T>
get_parameter (const Default&)
{
return Default_property_map<Iterator, T>();
return Constant_property_map<Iterator, T>();
}
template<typename VectorMap, typename ColorMap, typename EchoMap>

29
Property_map/include/CGAL/property_map.h
View File

@ -440,20 +440,29 @@ make_property_map(const std::vector<T>& v)
}
/// \ingroup PkgProperty_map
/// Property map that only returns the default value type
/// \cgalModels `ReadablePropertyMap`
template<class InputIterator, class ValueType>
struct Default_property_map{
/// Property map that returns a fixed value.
/// Note that this value is chosen when the map is constructed and cannot
/// be changed afterwards. Specifically, the free function `put()` does nothing.
///
/// \cgalModels `ReadWritePropertyMap`
template<class KeyType, class ValueType>
struct Constant_property_map
{
const ValueType default_value;
typedef typename InputIterator::value_type key_type;
typedef boost::readable_property_map_tag category;
typedef KeyType key_type;
typedef ValueType value_type;
typedef boost::read_write_property_map_tag category;
Default_property_map(const ValueType& default_value = ValueType()) : default_value (default_value) { }
Constant_property_map(const value_type& default_value = value_type()) : default_value (default_value) { }
/// Free function to use a get the value from an iterator using Input_iterator_property_map.
inline friend ValueType
get (const Default_property_map&, const key_type&){ return ValueType(); }
/// Free function that returns `pm.default_value`.
inline friend value_type
get (const Constant_property_map& pm, const key_type&){ return pm.default_value; }
/// Free function that does nothing.
inline friend void
put (const Constant_property_map&, const key_type&, const value_type&) { }
};
/// \ingroup PkgProperty_map