Exemplo n.º 1
0
        /// <summary>
        /// Returns mininum distance between regions
        /// </summary>
        /// <param name="inner"></param>
        /// <param name="outer"></param>
        /// <returns></returns>
        public static double GetDistanceBetweenPolylines3D(IPolyLine3D inner, IPolyLine3D outer)
        {
            IList <IPoint3D>   innerPoints   = inner.Segments.Select(s => s.StartPoint).ToList();
            IList <ISegment3D> outerSegments = outer.Segments.ToList();

            double  minDistance  = double.MaxValue;
            Point3D intersection = new Point3D();

            foreach (var innerPoint in innerPoints)
            {
                Plane3D tempPlane = new Plane3D
                {
                    PointOnPlane = new WM.Point3D(innerPoint.X, innerPoint.Y, 0)
                };

                foreach (var outerSegment in outerSegments)
                {
                    tempPlane.NormalVector = outerSegment.GetDirection();

                    if (outerSegment is ILineSegment3D)
                    {
                        intersection = new Point3D(tempPlane.GetIntersection(outerSegment as ILineSegment3D));
                    }

                    var vect     = intersection - (innerPoint as Point3D);
                    var tempDist = vect.Magnitude;

                    minDistance = Math.Min(minDistance, tempDist);
                }
            }

            return(minDistance);
        }
Exemplo n.º 2
0
        public override IList <Polyline4D> Clip(Polyline4D polyline, bool filled)
        {
            int count = polyline.Count;

            switch (count)
            {
            case 0:
                return(AbstractClipperBase4D.PolylinesClippedAway);

            case 1:
                if (!Class455.Contains(this.class461_0, this.matrix4D_1.TransformToPoint2D(polyline[0])))
                {
                    return(AbstractClipperBase4D.PolylinesClippedAway);
                }
                return((IList <Polyline4D>) new Polyline4D[1] {
                    polyline
                });

            default:
                Polyline3D polyline1 = new Polyline3D(polyline.Count, polyline.Closed);
                foreach (Vector4D vector in (List <Vector4D>)polyline)
                {
                    polyline1.Add(this.matrix4D_1.TransformToPoint3D(vector));
                }
                Class455.Class462        polylineInfo = new Class455.Class462(polyline1);
                List <Class455.Class456> class456List = this.class461_0.method_0((Class455.Class460)polylineInfo);
                if (class456List.Count == 0)
                {
                    if (polyline1.Count == 0)
                    {
                        return (IList <Polyline4D>) new Polyline4D[1] {
                                   polyline
                        }
                    }
                    ;
                    foreach (Point3D point3D in (List <Point3D>)polyline1)
                    {
                        if (Class455.Contains(this.class461_0, (Point2D)point3D))
                        {
                            return (IList <Polyline4D>) new Polyline4D[1] {
                                       polyline
                            }
                        }
                        ;
                    }
                    if (!filled || polyline.Count < 3)
                    {
                        return(AbstractClipperBase4D.PolylinesClippedAway);
                    }
                    Polygon2D polygon2D = new Polygon2D(polyline1.Count);
                    foreach (Point3D point3D in (List <Point3D>)polyline1)
                    {
                        polygon2D.Add((Point2D)point3D);
                    }
                    bool flag = false;
                    foreach (Point2D p in (List <Point2D>) this.class461_0.polygon2D_0)
                    {
                        if (polygon2D.IsInside(p))
                        {
                            flag = true;

                            break;
                        }
                    }
                    if (filled && flag)
                    {
                        Plane3D?plane = Polygon3D.GetPlane((IList <Point3D>)polyline1);
                        if (plane.HasValue)
                        {
                            Plane3D    plane3D    = plane.Value;
                            Polyline4D polyline4D = new Polyline4D(this.class461_0.polygon2D_0.Count, true);
                            foreach (Point2D point2D in (List <Point2D>) this.class461_0.polygon2D_0)
                            {
                                Point3D?intersection = plane3D.GetIntersection(new Ray3D(point2D.X, point2D.Y, 0.0, 0.0, 0.0, 1.0));
                                if (intersection.HasValue)
                                {
                                    polyline4D.Add(this.matrix4D_0.TransformTo4D(intersection.Value));
                                }
                                else
                                {
                                    intersection = plane3D.GetIntersection(new Ray3D(point2D.X, point2D.Y, 0.0, 0.0, 0.0, -1.0));
                                    if (intersection.HasValue)
                                    {
                                        polyline4D.Add(this.matrix4D_0.TransformTo4D(intersection.Value));
                                    }
                                }
                            }
                            return((IList <Polyline4D>) new Polyline4D[1] {
                                polyline4D
                            });
                        }
                    }
                    return(AbstractClipperBase4D.PolylinesClippedAway);
                }
                bool flag1 = polylineInfo.double_0 * this.class461_0.double_0 >= 0.0;
                List <Polyline4D> polyline4DList = new List <Polyline4D>();
                int index1;
                if (!Class455.Contains(this.class461_0, (Point2D)polyline1[0]))
                {
                    index1 = 0;
                }
                else if (polyline.Closed)
                {
                    index1 = class456List.Count - 1;
                }
                else
                {
                    Polyline4D result = new Polyline4D(filled);
                    this.method_0(result, 0.0, class456List[0].double_1, polylineInfo);
                    polyline4DList.Add(result);
                    class456List.RemoveAt(0);
                    index1 = 0;
                    if (class456List.Count == 0)
                    {
                        return((IList <Polyline4D>)polyline4DList);
                    }
                }
                if (filled)
                {
                    while (class456List.Count > 0)
                    {
                        if (polylineInfo.bool_0)
                        {
                            class456List.Sort(new Comparison <Class455.Class456>(Class455.Class456.smethod_2));
                        }
                        else
                        {
                            class456List.Sort(new Comparison <Class455.Class456>(Class455.Class456.smethod_0));
                            if (!flag1)
                            {
                                class456List.Reverse();
                            }
                        }
                        for (int index2 = 0; index2 < class456List.Count; ++index2)
                        {
                            Class455.Class456 class456_1 = class456List[index2];
                            Class455.Class456 class456_2 = class456List[(index2 + 1) % class456List.Count];
                            class456_1.class456_0 = class456_2;
                            class456_2.class456_1 = class456_1;
                        }
                        class456List.Sort(new Comparison <Class455.Class456>(Class455.Class456.smethod_1));
                        for (int index2 = 0; index2 < class456List.Count; ++index2)
                        {
                            Class455.Class456 class456_1 = class456List[index2];
                            Class455.Class456 class456_2 = class456List[(index2 + 1) % class456List.Count];
                            class456_1.class456_2 = class456_2;
                            class456_2.class456_3 = class456_1;
                        }
                        Polyline4D result = new Polyline4D(true);
                        polyline4DList.Add(result);
                        Class455.Class456 class456 = class456List[index1];
                        class456List.RemoveAt(index1);
                        bool flag2 = index1 > 0;
                        index1 = 0;
                        Class455.Class456 start = class456;
                        do
                        {
                            Class455.Class456 end = start.class456_2;
                            bool flag3;
                            if (flag2 || end.double_1 >= start.double_1)
                            {
                                double parameter = 0.5 * (start.double_1 + end.double_1);
                                if (flag2)
                                {
                                    parameter += 0.5 * (double)count;
                                    flag2      = false;
                                }
                                flag3 = Class455.Contains(this.class461_0, (Point2D)Class455.smethod_1(polylineInfo.polyline3D_0, parameter));
                            }
                            else
                            {
                                goto label_72;
                            }
label_65:
                            if (flag3)
                            {
                                this.method_0(result, start.double_1, end.double_1, polylineInfo);
                            }
                            else
                            {
                                end = start.class456_0;
                                if (polylineInfo.bool_0)
                                {
                                    result.Add(this.matrix4D_0.TransformTo4D(Class455.smethod_1(polylineInfo.polyline3D_0, start.double_1)));
                                }
                                else
                                {
                                    this.method_1(result, start, end, !flag1, polylineInfo);
                                }
                            }
                            class456List.Remove(end);
                            if (end.class456_2 != end.class456_3)
                            {
                                end.class456_1.class456_0 = end.class456_0;
                                end.class456_0.class456_1 = end.class456_1;
                                end.class456_3.class456_2 = end.class456_2;
                                end.class456_2.class456_3 = end.class456_3;
                                start = end;
                                continue;
                            }
                            break;
label_72:
                            flag3 = false;
                            goto label_65;
                        }while (!object.ReferenceEquals((object)start, (object)class456));
                        if (result.Count < 3)
                        {
                            result.Closed = false;
                        }
                    }
                }
                else
                {
                    bool flag2 = Class455.Contains(this.class461_0, (Point2D)polyline1[polyline1.Count - 1]);
                    class456List.Sort(new Comparison <Class455.Class456>(Class455.Class456.smethod_1));
                    Class455.Class456 class456_1 = class456List[index1];
                    class456List.RemoveAt(index1);
                    while (class456List.Count > 0)
                    {
                        Class455.Class456 class456_2 = class456List[0];
                        class456List.RemoveAt(0);
                        double parameter = 0.5 * (class456_1.double_1 + class456_2.double_1);
                        if (class456_2.double_1 < class456_1.double_1)
                        {
                            parameter += 0.5 * (double)count;
                        }
                        if (Class455.Contains(this.class461_0, (Point2D)Class455.smethod_1(polylineInfo.polyline3D_0, parameter)))
                        {
                            Polyline4D result = new Polyline4D();
                            this.method_0(result, class456_1.double_1, class456_2.double_1, polylineInfo);
                            polyline4DList.Add(result);
                        }
                        class456_1 = class456_2;
                    }
                    if (!polyline.Closed && flag2)
                    {
                        Polyline4D result = new Polyline4D();
                        this.method_0(result, class456_1.double_1, (double)(polyline.Count - 1), polylineInfo);
                        polyline4DList.Add(result);
                    }
                }
                return((IList <Polyline4D>)polyline4DList);
            }
        }