//多边形长、宽计算
private void PolygonCalculate(string[] strGraph, string[] strPoint, string[] strPolygon2, string[] strPolygon3, out double nLength, out double nWidth)
{
DataType.CAMDataType.CoordValue[] CoordVal = new DataType.CAMDataType.CoordValue[3];
CoordVal[2].x = double.Parse(strPolygon3[7]);
CoordVal[2].y = double.Parse(strPolygon3[8]);
CoordVal[2].z = double.Parse(strPolygon3[9]);
CoordVal[1].x = double.Parse(strPolygon2[7]);
CoordVal[1].y = double.Parse(strPolygon2[8]);
CoordVal[1].z = double.Parse(strPolygon2[9]);
CoordVal[0].x = double.Parse(strPoint[7]);
CoordVal[0].y = double.Parse(strPoint[8]);
CoordVal[0].z = double.Parse(strPoint[9]);
int nSides = int.Parse(strGraph[1]);
double distanceL = 0;
double distanceW = 0;
//新增自动计算多边形长宽及椭圆长边、短边
if (nSides == 0) //oblong
{
distanceL = Math.Sqrt(Math.Pow(CoordVal[1].x - CoordVal[0].x, 2) + Math.Pow(CoordVal[1].y - CoordVal[0].y, 2) + Math.Pow(CoordVal[1].z - CoordVal[0].z, 2)); //长
double[] Axyz = new double[3];
Axyz[0] = CoordVal[1].x - CoordVal[0].x;
Axyz[1] = CoordVal[1].y - CoordVal[0].y;
Axyz[2] = CoordVal[1].z - CoordVal[0].z;
double[] Bxyz = new double[3];
Bxyz[0] = CoordVal[2].x - CoordVal[1].x;
Bxyz[1] = CoordVal[2].y - CoordVal[1].y;
Bxyz[2] = CoordVal[2].z - CoordVal[1].z;
double[] Cxyz = new double[3];
//a * b= (AyBz-AzBy)*i+(AzBx-AxBz)*j+(AxBy-AyBx)k)
Cxyz[0] = Axyz[1] * Bxyz[2] - Axyz[2] * Bxyz[1];
Cxyz[1] = Axyz[2] * Bxyz[0] - Axyz[0] * Bxyz[2];
Cxyz[2] = Axyz[0] * Bxyz[1] - Axyz[1] * Bxyz[0];
double l_x = Math.Sqrt(Math.Pow(Cxyz[0], 2) + Math.Pow(Cxyz[1], 2) + Math.Pow(Cxyz[2], 2));
double l_y = Math.Sqrt(Math.Pow(Axyz[0], 2) + Math.Pow(Axyz[1], 2) + Math.Pow(Axyz[2], 2));
double l_nDistance = (double)l_x / l_y; //椭圆短边的一半
distanceW = l_nDistance * 2; //椭圆宽
}
else if (nSides > 3) //rect//polygon
{
distanceL = Math.Sqrt(Math.Pow(CoordVal[1].x - CoordVal[0].x, 2) + Math.Pow(CoordVal[1].y - CoordVal[0].y, 2) + Math.Pow(CoordVal[1].z - CoordVal[0].z, 2)); //长
distanceW = Math.Sqrt(Math.Pow(CoordVal[2].x - CoordVal[1].x, 2) + Math.Pow(CoordVal[2].y - CoordVal[1].y, 2) + Math.Pow(CoordVal[2].z - CoordVal[1].z, 2)); //宽
}
nLength = distanceL;
nWidth = distanceW;
}
//圆形半径计算
private void CircleCalculate(string[] strGraph, string[] strPoint, string[] strPoint2, out double nLength)
{
DataType.CAMDataType.CoordValue[] CoordVal = new DataType.CAMDataType.CoordValue[3];
CoordVal[0].x = double.Parse(strPoint[7]);
CoordVal[0].y = double.Parse(strPoint[8]);
CoordVal[0].z = double.Parse(strPoint[9]);
CoordVal[1].x = double.Parse(strPoint2[7]);
CoordVal[1].y = double.Parse(strPoint2[8]);
CoordVal[1].z = double.Parse(strPoint2[9]);
//新增自动计算圆半径
double DistanceR = Math.Sqrt(Math.Pow(CoordVal[1].x - CoordVal[0].x, 2) + Math.Pow(CoordVal[1].y - CoordVal[0].y, 2) + Math.Pow(CoordVal[1].z - CoordVal[0].z, 2)); //半径
nLength = DistanceR; //圆形半径保留小数点后两位
}
