mirror of
https://github.com/ecency/ecency-mobile.git
synced 2024-12-22 04:41:43 +03:00
158 lines
4.6 KiB
C++
158 lines
4.6 KiB
C++
// Boost.Polygon library voronoi.hpp header file
|
|
|
|
// Copyright Andrii Sydorchuk 2010-2012.
|
|
// Distributed under the Boost Software License, Version 1.0.
|
|
// (See accompanying file LICENSE_1_0.txt or copy at
|
|
// http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
// See http://www.boost.org for updates, documentation, and revision history.
|
|
|
|
#ifndef BOOST_POLYGON_VORONOI
|
|
#define BOOST_POLYGON_VORONOI
|
|
|
|
#include "isotropy.hpp"
|
|
#include "point_concept.hpp"
|
|
#include "segment_concept.hpp"
|
|
|
|
#include "voronoi_builder.hpp"
|
|
#include "voronoi_diagram.hpp"
|
|
|
|
// Public methods to compute Voronoi diagram of a set of points and segments.
|
|
// Coordinates of the points and of the endpoints of the segments should belong
|
|
// to the 32-bit signed integer range [-2^31, 2^31-1]. To use wider input
|
|
// coordinate range voronoi_builder configuration via coordinate type traits
|
|
// is required.
|
|
// Complexity - O(N*logN), memory usage - O(N), N - number of input objects.
|
|
namespace boost {
|
|
namespace polygon {
|
|
|
|
template <typename Point, typename VB>
|
|
typename enable_if<
|
|
typename gtl_if<
|
|
typename is_point_concept<
|
|
typename geometry_concept<Point>::type
|
|
>::type
|
|
>::type,
|
|
std::size_t
|
|
>::type insert(const Point& point, VB* vb) {
|
|
return vb->insert_point(x(point), y(point));
|
|
}
|
|
|
|
template <typename PointIterator, typename VB>
|
|
typename enable_if<
|
|
typename gtl_if<
|
|
typename is_point_concept<
|
|
typename geometry_concept<
|
|
typename std::iterator_traits<PointIterator>::value_type
|
|
>::type
|
|
>::type
|
|
>::type,
|
|
void
|
|
>::type insert(const PointIterator first, const PointIterator last, VB* vb) {
|
|
for (PointIterator it = first; it != last; ++it) {
|
|
insert(*it, vb);
|
|
}
|
|
}
|
|
|
|
template <typename Segment, typename VB>
|
|
typename enable_if<
|
|
typename gtl_if<
|
|
typename is_segment_concept<
|
|
typename geometry_concept<Segment>::type
|
|
>::type
|
|
>::type,
|
|
std::size_t
|
|
>::type insert(const Segment& segment, VB* vb) {
|
|
return vb->insert_segment(
|
|
x(low(segment)), y(low(segment)),
|
|
x(high(segment)), y(high(segment)));
|
|
}
|
|
|
|
template <typename SegmentIterator, typename VB>
|
|
typename enable_if<
|
|
typename gtl_if<
|
|
typename is_segment_concept<
|
|
typename geometry_concept<
|
|
typename std::iterator_traits<SegmentIterator>::value_type
|
|
>::type
|
|
>::type
|
|
>::type,
|
|
void
|
|
>::type insert(const SegmentIterator first,
|
|
const SegmentIterator last,
|
|
VB* vb) {
|
|
for (SegmentIterator it = first; it != last; ++it) {
|
|
insert(*it, vb);
|
|
}
|
|
}
|
|
|
|
template <typename PointIterator, typename VD>
|
|
typename enable_if<
|
|
typename gtl_if<
|
|
typename is_point_concept<
|
|
typename geometry_concept<
|
|
typename std::iterator_traits<PointIterator>::value_type
|
|
>::type
|
|
>::type
|
|
>::type,
|
|
void
|
|
>::type construct_voronoi(const PointIterator first,
|
|
const PointIterator last,
|
|
VD* vd) {
|
|
default_voronoi_builder builder;
|
|
insert(first, last, &builder);
|
|
builder.construct(vd);
|
|
}
|
|
|
|
template <typename SegmentIterator, typename VD>
|
|
typename enable_if<
|
|
typename gtl_if<
|
|
typename is_segment_concept<
|
|
typename geometry_concept<
|
|
typename std::iterator_traits<SegmentIterator>::value_type
|
|
>::type
|
|
>::type
|
|
>::type,
|
|
void
|
|
>::type construct_voronoi(const SegmentIterator first,
|
|
const SegmentIterator last,
|
|
VD* vd) {
|
|
default_voronoi_builder builder;
|
|
insert(first, last, &builder);
|
|
builder.construct(vd);
|
|
}
|
|
|
|
template <typename PointIterator, typename SegmentIterator, typename VD>
|
|
typename enable_if<
|
|
typename gtl_and<
|
|
typename gtl_if<
|
|
typename is_point_concept<
|
|
typename geometry_concept<
|
|
typename std::iterator_traits<PointIterator>::value_type
|
|
>::type
|
|
>::type
|
|
>::type,
|
|
typename gtl_if<
|
|
typename is_segment_concept<
|
|
typename geometry_concept<
|
|
typename std::iterator_traits<SegmentIterator>::value_type
|
|
>::type
|
|
>::type
|
|
>::type
|
|
>::type,
|
|
void
|
|
>::type construct_voronoi(const PointIterator p_first,
|
|
const PointIterator p_last,
|
|
const SegmentIterator s_first,
|
|
const SegmentIterator s_last,
|
|
VD* vd) {
|
|
default_voronoi_builder builder;
|
|
insert(p_first, p_last, &builder);
|
|
insert(s_first, s_last, &builder);
|
|
builder.construct(vd);
|
|
}
|
|
} // polygon
|
|
} // boost
|
|
|
|
#endif // BOOST_POLYGON_VORONOI
|