Esempio n. 1
0
        public CLine(CPoint2D point1, CPoint2D point2)
        {
            try {
                if (CPoint2D.SamePoints(point1, point2))
                {
                    string errMsg = "The input points are the same";
                    InvalidInputGeometryDataException ex = new InvalidInputGeometryDataException(errMsg);
                    throw ex;
                }

                //Point1 and Point2 are different points:
                if (Math.Abs(point1.X - point2.X)
                    < ConstantValue.SmallValue)                 //vertical line
                {
                    Initialize(Math.PI / 2, point1);
                }
                else if (Math.Abs(point1.Y - point2.Y)
                         < ConstantValue.SmallValue)                 //Horizontal line
                {
                    Initialize(0, point1);
                }
                else                 //normal line
                {
                    double m          = (point2.Y - point1.Y) / (point2.X - point1.X);
                    double alphaInRad = Math.Atan(m);
                    Initialize(alphaInRad, point1);
                }
            }
            catch (Exception e) {
                Trace.WriteLine(e.Message + e.StackTrace);
            }
        }
Esempio n. 2
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        private void Initialize(Double angleInRad, CPoint2D point)
        {
            //angleInRad should be between 0-Pi

            try {
                //if ((angleInRad<0) ||(angleInRad>Math.PI))
                if (angleInRad > 2 * Math.PI)
                {
                    string errMsg = string.Format("The input line angle" + " {0} is wrong. It should be between 0-2*PI.", angleInRad);

                    InvalidInputGeometryDataException ex = new InvalidInputGeometryDataException(errMsg);

                    throw ex;
                }

                if (Math.Abs(angleInRad - Math.PI / 2)
                    < ConstantValue.SmallValue)                 //vertical line
                {
                    a = 1;
                    b = 0;
                    c = -point.X;
                }
                else                 //not vertical line
                {
                    a = -Math.Tan(angleInRad);
                    b = 1;
                    c = -a * point.X - b * point.Y;
                }
            }
            catch (Exception e) {
                Trace.WriteLine(e.Message + e.StackTrace);
            }
        }
Esempio n. 3
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        public CLine(CPoint2D point1, CPoint2D point2)
        {
            try {
                if (CPoint2D.SamePoints(point1, point2)) {
                    string errMsg = "The input points are the same";
                    InvalidInputGeometryDataException ex = new InvalidInputGeometryDataException(errMsg);
                    throw ex;
                }

                //Point1 and Point2 are different points:
                if (Math.Abs(point1.X - point2.X)
                    < ConstantValue.SmallValue) //vertical line
                {
                    Initialize(Math.PI/2, point1);
                }
                else if (Math.Abs(point1.Y - point2.Y)
                         < ConstantValue.SmallValue) //Horizontal line
                {
                    Initialize(0, point1);
                }
                else //normal line
                {
                    double m = (point2.Y - point1.Y)/(point2.X - point1.X);
                    double alphaInRad = Math.Atan(m);
                    Initialize(alphaInRad, point1);
                }
            }
            catch (Exception e) {
                Trace.WriteLine(e.Message + e.StackTrace);
            }
        }
Esempio n. 4
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 public CPolygon(CPoint2D[] points)
 {
     int nNumOfPoitns = points.Length;
     try {
         if (nNumOfPoitns < 3) {
             InvalidInputGeometryDataException ex = new InvalidInputGeometryDataException();
             throw ex;
         }
         else {
             m_aVertices = new CPoint2D[nNumOfPoitns];
             for (int i = 0; i < nNumOfPoitns; i++) {
                 m_aVertices[i] = points[i];
             }
         }
     }
     catch (Exception e) {
         Trace.WriteLine(e.Message + e.StackTrace);
     }
 }
Esempio n. 5
0
        public CPolygon(CPoint2D[] points)
        {
            int nNumOfPoitns = points.Length;

            try {
                if (nNumOfPoitns < 3)
                {
                    InvalidInputGeometryDataException ex = new InvalidInputGeometryDataException();
                    throw ex;
                }
                else
                {
                    m_aVertices = new CPoint2D[nNumOfPoitns];
                    for (int i = 0; i < nNumOfPoitns; i++)
                    {
                        m_aVertices[i] = points[i];
                    }
                }
            }
            catch (Exception e) {
                Trace.WriteLine(e.Message + e.StackTrace);
            }
        }
Esempio n. 6
0
        private void Initialize(Double angleInRad, CPoint2D point)
        {
            //angleInRad should be between 0-Pi

            try {
                //if ((angleInRad<0) ||(angleInRad>Math.PI))
                if (angleInRad > 2*Math.PI) {
                    string errMsg = string.Format("The input line angle" + " {0} is wrong. It should be between 0-2*PI.", angleInRad);

                    InvalidInputGeometryDataException ex = new InvalidInputGeometryDataException(errMsg);

                    throw ex;
                }

                if (Math.Abs(angleInRad - Math.PI/2)
                    < ConstantValue.SmallValue) //vertical line
                {
                    a = 1;
                    b = 0;
                    c = -point.X;
                }
                else //not vertical line
                {
                    a = -Math.Tan(angleInRad);
                    b = 1;
                    c = -a*point.X - b*point.Y;
                }
            }
            catch (Exception e) {
                Trace.WriteLine(e.Message + e.StackTrace);
            }
        }