ShrlAlgoToolkit/ShrlAlgoToolkit.RevitAddins/RvIndependent/MetroGauges/LandXMLData/CrossSectionPoint.cs

using System.Xml.Serialization;

namespace ShrlAlgoToolkit.RevitAddins.RvIndependent.MetroGauges.LandXMLData
{
    [XmlType("CrossSectPnt")]
    [Serializable]
    public class CrossSectionPoint : TextPoint2D
    {
        public CrossSectionPoint()
        {
            Code = null;
            Edge = Index = 0;
        }

        public CrossSectionPoint(CrossSectionPoint source)
            : base(source)
        {
            Code = source.Code;
            Edge = source.Edge;
            Index = source.Index;
        }

        [XmlIgnore]
        public string CodeIndex => Code + " " + Index;

        [XmlAttribute("edge")]
        public int Edge { get; set; }

        [XmlAttribute("i")]
        public int Index { get; set; }

        [XmlAttribute("code")]
        public string Code { get; set; }

        public override bool Equals(object obj)
        {
            return Equals(obj as CrossSectionPoint);
        }

        public bool Equals(CrossSectionPoint csp)
        {
            return !ReferenceEquals(csp, null) && ValuesEqual(this, csp);
        }

        public override int GetHashCode()
        {
            return base.GetHashCode();
        }

        public static CrossSectionPoint operator +(CrossSectionPoint p1, CrossSectionPoint p2)
        {
            if (p1 != null)
            {
                if (p2 != null)
                {
                    return new CrossSectionPoint
                    {
                        X = p1.X + p2.X,
                        Y = p1.Y + p2.Y,
                        Z = p1.Z + p2.Z,
                        _first = p1._first + p2._first,
                        Second = p1._second + p2._second
                    };
                }

                return p1;
            }

            if (p2 != null)
            {
                return p2;
            }

            return null;
        }

        public static bool operator ==(CrossSectionPoint p1, CrossSectionPoint p2)
        {
            return ReferenceEquals(p1, p2) || (!ReferenceEquals(p1, null) && !ReferenceEquals(p2, null) && ValuesEqual(p1, p2));
        }

        public static bool operator !=(CrossSectionPoint p1, CrossSectionPoint p2)
        {
            return !ReferenceEquals(p1, p2) && (ReferenceEquals(p1, null) || ReferenceEquals(p2, null) || !ValuesEqual(p1, p2));
        }

        public static CrossSectionPoint operator *(double f1, CrossSectionPoint p2)
        {
            if (p2 != null)
            {
                return new CrossSectionPoint
                {
                    X = f1 * p2.X,
                    Y = f1 * p2.Y,
                    Z = f1 * p2.Z,
                    _first = f1 * p2._first,
                    Second = f1 * p2._second
                };
            }

            return null;
        }

        public static CrossSectionPoint operator -(CrossSectionPoint p1, CrossSectionPoint p2)
        {
            if (p1 != null)
            {
                if (p2 != null)
                {
                    return new CrossSectionPoint
                    {
                        X = p1.X - p2.X,
                        Y = p1.Y - p2.Y,
                        Z = p1.Z - p2.Z,
                        _first = p1._first - p2._first,
                        Second = p1._second - p2._second
                    };
                }

                return p1;
            }

            if (p2 != null)
            {
                return new CrossSectionPoint
                {
                    X = -p2.X,
                    Y = -p2.Y,
                    Z = -p2.Z,
                    _first = -p1._first,
                    Second = -p2._second
                };
            }

            return null;
        }

        public string SeekCode(CrossSection crossSection)
        {
            string[] array = crossSection.DesignShapes
                .SelectMany(ds => from p in ds.CrossSectionPoints where p != this && p.Text == Text && p.X == X && p.Y == Y && p.Z == Z select p.Code)
                .ToArray();
            if (array.Length <= 0)
            {
                return null;
            }

            return array[0];
        }

        public static bool ValuesEqual(CrossSectionPoint p1, CrossSectionPoint p2)
        {
            return p1.Code == p2.Code && TextPoint2D.ValuesEqual(p1, p2);
        }

        public class SectionPointComparer : IEqualityComparer<CrossSectionPoint>
        {
            public bool Equals(CrossSectionPoint x, CrossSectionPoint y)
            {
                return x.First == y.First && x.Second == y.Second;
            }

            public int GetHashCode(CrossSectionPoint obj)
            {
                return obj.GetHashCode();
            }
        }
    }
}