コード例 #1
0
void VoronoiCgal_Patch::Compute()
{
	m_CgalPatchs = MakePatchs(m_ImageSpline);

	for (int i = 0; i < m_CgalPatchs.size(); ++i)
	{
		m_Delaunay = Delaunay();
		insert_polygon(m_Delaunay, m_ImageSpline, i);
		insert_polygonInter(m_Delaunay, m_ImageSpline, i);
		Mesher mesher(m_Delaunay);
		Criteria    criteria(0, 100);
		mesher.set_criteria(criteria);
		mesher.refine_mesh();
		mark_domains(m_Delaunay);
		LineSegs lineSegs;

		for (auto e = m_Delaunay.finite_edges_begin();
				e != m_Delaunay.finite_edges_end(); ++e)
		{
			Delaunay::Face_handle fn = e->first->neighbor(e->second);

			//CGAL::Object o = m_Delaunay.dual(e);
			if (!fn->is_in_domain() || !fn->info().in_domain())
			{
				continue;
			}

			if (!m_Delaunay.is_constrained(*e) && (!m_Delaunay.is_infinite(e->first))
					&& (!m_Delaunay.is_infinite(e->first->neighbor(e->second))))
			{
				Delaunay::Segment s = m_Delaunay.geom_traits().construct_segment_2_object()
									  (m_Delaunay.circumcenter(e->first),
									   m_Delaunay.circumcenter(e->first->neighbor(e->second)));
				const CgalInexactKernel::Segment_2* seg = &s;
				CgalPoint p1(seg->source().hx(), seg->source().hy());
				CgalPoint p2(seg->target().hx(), seg->target().hy());
				Vector2 pp1(p1.hx(), p1.hy());
				Vector2 pp2(p2.hx(), p2.hy());

				if (pp1 == pp2)
				{
					continue;
				}

				lineSegs.push_back(LineSeg(pp1, pp2));
			}
		}

		for (auto it = lineSegs.begin(); it != lineSegs.end(); ++it)
		{
			//m_PositionGraph.AddNewLine(it->beg, it->end, );
		}
	}

	m_PositionGraph.ComputeJoints();
	//printf("joints: %d\n", m_PositionGraph.m_Joints.size());
	//MakeLines();
	MakeGraphLines();
}
コード例 #2
0
ファイル: Polygon.cpp プロジェクト: ebonywolf/ProjGaia
bool Polygon::pointBelongsTo ( Coord c ) {

	LineSeg seg = axis.front();

	Coord middle = seg.getVector() * 0.5 + seg.getStart();

	seg = LineSeg ( c, middle ); ///faz uma linha do ponto c até o meio de uma aresta do poligono.

	int count = 0;
for ( auto w: axis ) {
		double time = w.timeToInterSect ( seg );
		double time2 = seg.timeToInterSect ( w );

		if ( time2 > 0  && time <= 1 && time >= 0 ) {
			count++;

		}
	}

	if ( count % 2 == 0 ) return false;
	return true;
}