コード例 #1
0
        private void Create()
        {
            if (_subdiv != null)
            {
                return;
            }

            Envelope        siteEnv  = DelaunayTriangulationBuilder.Envelope(_siteCoords);
            IList <Segment> segments = new List <Segment>();

            if (_constraintLines != null)
            {
                siteEnv.ExpandToInclude(_constraintLines.EnvelopeInternal);
                CreateVertices(_constraintLines);
                segments = CreateConstraintSegments(_constraintLines);
            }

            IEnumerable <Vertex> sites = CreateSiteVertices(_siteCoords);

            ConformingDelaunayTriangulator cdt = new ConformingDelaunayTriangulator(sites, _tolerance);

            cdt.SetConstraints(segments, new List <Vertex>(_constraintVertexMap.Values));
            cdt.FormInitialDelaunay();
            cdt.EnforceConstraints();
            _subdiv = cdt.Subdivision;
        }
コード例 #2
0
        private void Create()
        {
            if (_subdiv != null)
            {
                return;
            }

            Envelope siteEnv = DelaunayTriangulationBuilder.Envelope(_siteCoords);

            _diagramEnv = siteEnv;
            // add a buffer around the final envelope
            double expandBy = Math.Max(_diagramEnv.Width, _diagramEnv.Height);

            _diagramEnv.ExpandBy(expandBy);
            if (_clipEnv != null)
            {
                _diagramEnv.ExpandToInclude(_clipEnv);
            }

            var vertices = DelaunayTriangulationBuilder.ToVertices(_siteCoords);

            _subdiv = new QuadEdgeSubdivision(siteEnv, _tolerance);
            IncrementalDelaunayTriangulator triangulator = new IncrementalDelaunayTriangulator(_subdiv);

            triangulator.InsertSites(vertices);
        }