예제 #1
0
        public void Build(List <Polygon> polygons)
        {
            if (polygons.Count == 0)
            {
                return;
            }
            if (Plane == null)
            {
                Plane = polygons[0].Plane.Clone();
            }
            var pp    = Plane.ToPrecisionPlane();
            var front = new List <Polygon>();
            var back  = new List <Polygon>();

            foreach (var polygon in polygons.Select(x => x.ToPrecisionPolygon()))
            {
                polygon.Split(pp, out var b, out var f, out var cb, out var cf);
                if (f != null)
                {
                    front.Add(f.ToStandardPolygon());
                }
                if (b != null)
                {
                    back.Add(b.ToStandardPolygon());
                }
                if (cf != null)
                {
                    front.Add(cf.ToStandardPolygon());
                }
                if (cb != null)
                {
                    back.Add(cb.ToStandardPolygon());
                }
            }
            if (front.Count > 0)
            {
                if (Front == null)
                {
                    Front = new CsgNode();
                }
                Front.Build(front);
            }
            if (back.Count > 0)
            {
                if (Back == null)
                {
                    Back = new CsgNode();
                }
                Back.Build(back);
            }
        }
예제 #2
0
        public void Build(List <Polygon> polygons)
        {
            if (polygons.Count == 0)
            {
                return;
            }
            if (Plane == null)
            {
                Plane = polygons[0].Plane.Clone();
            }
            var front = new List <Polygon>();
            var back  = new List <Polygon>();

            foreach (var polygon in polygons)
            {
                Polygon f, b, cf, cb;
                polygon.Split(Plane, out b, out f, out cb, out cf);
                if (f != null)
                {
                    front.Add(f);
                }
                if (b != null)
                {
                    back.Add(b);
                }
                if (cf != null)
                {
                    Polygons.Add(cf);
                }
                if (cb != null)
                {
                    Polygons.Add(cb);
                }
            }
            if (front.Count > 0)
            {
                if (Front == null)
                {
                    Front = new CsgNode();
                }
                Front.Build(front);
            }
            if (back.Count > 0)
            {
                if (Back == null)
                {
                    Back = new CsgNode();
                }
                Back.Build(back);
            }
        }