CGAL 4.7 - 2D Straight Skeleton and Polygon Offsetting
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#include <CGAL/Straight_skeleton_converter_2.h>
The class Straight_skeleton_converter_2
converts a straight skeleton instantiated using certain traits into another straight skeleton instantiated using a different traits.
The first and second template parameters are the source and target straight skeleton types, resp.
The third template parameter ItemsConverter
is a function object that must model the concept StraightSkeletonItemsConverter_2
. The default value of this parameter is Straight_skeleton_items_converter_2<SrcSs,TgtSs>
.
This conversion can be used to produce a straight skeleton with the fast Exact_predicates_inexact_constructions_kernel
but then input that skeleton into Polygon_offset_builder<Ss,Gt,Container>
instantiated with the slower Exact_predicates_exact_constructions_kernel
obtaining only simple offset polygons without paying the runtime overhead of exact constructions for the straight skeleton itself.
StraightSkeletonItemsConverter_2
Straight_skeleton_items_converter_2<SrcSs,TgtSs,NTConverter>
convert_straight_skeleton_2<SrcSs,TgtSs,NTConverter>
Types | |
SrcSs | Source_skeleton |
The SrcSs template parameter corresponding to the source straight skeleton. More... | |
TgtSs | Target_skeleton |
The TgtSs template parameter corresponding to the target straight skeleton. More... | |
ItemsCvt | Items_converter |
The ItemsCvt template parameter corresponding to the items converter. More... | |
Creation | |
Straight_skeleton_converter_2 (Items_converter const &c) | |
Default constructor . More... | |
Operations | |
boost::shared_ptr < Target_skeleton > | operator() (Source_skeleton const &s) const |
returns a new straight skeleton data structure with the same combinatorial and geometric data as s using the items converter to convert the geometric embeeding to the types of the target traits. More... | |
CGAL::Straight_skeleton_converter_2< SrcSs, TgtSs, ItemsCvt >::Straight_skeleton_converter_2 | ( | Items_converter const & | c | ) |
Default constructor .
boost::shared_ptr<Target_skeleton> CGAL::Straight_skeleton_converter_2< SrcSs, TgtSs, ItemsCvt >::operator() | ( | Source_skeleton const & | s | ) | const |
returns a new straight skeleton data structure with the same combinatorial and geometric data as s
using the items converter to convert the geometric embeeding to the types of the target traits.
ItemsCvt CGAL::Straight_skeleton_converter_2< SrcSs, TgtSs, ItemsCvt >::Items_converter |
The ItemsCvt
template parameter corresponding to the items converter.
SrcSs CGAL::Straight_skeleton_converter_2< SrcSs, TgtSs, ItemsCvt >::Source_skeleton |
The SrcSs
template parameter corresponding to the source straight skeleton.
TgtSs CGAL::Straight_skeleton_converter_2< SrcSs, TgtSs, ItemsCvt >::Target_skeleton |
The TgtSs
template parameter corresponding to the target straight skeleton.