public static long GetInterSectPointofTwoLinesect(GPoint ptFirstLnBeg, double dAngle1, GPoint ptSecondLnBeg,
double dAngle2, ref GPoint ptInsect)
{
dAngle1 = ApplyMath.MakeAngleTo2P(dAngle1);
dAngle2 = ApplyMath.MakeAngleTo2P(dAngle2);
long result;
if (Math.Abs(dAngle1 - 90.0) < 1E-08 || Math.Abs(dAngle1 - 270.0) < 1E-08)
{
if (Math.Abs(dAngle2 - 90.0) < 1E-08 || Math.Abs(dAngle2 - 270.0) < 1E-08)
{
result = 0L;
}
else
{
double num = (ptFirstLnBeg.X - ptSecondLnBeg.X) / Math.Cos(dAngle2 * 0.017453292519943295);
ptInsect.X = ptFirstLnBeg.X;
ptInsect.Y = ptSecondLnBeg.Y + num * Math.Sin(dAngle2 * 0.017453292519943295);
result = 1L;
}
}
else if (Math.Abs(dAngle2 - 90.0) < 1E-08 || Math.Abs(dAngle2 - 270.0) < 1E-08)
{
double num2 = (ptSecondLnBeg.X - ptFirstLnBeg.X) / Math.Cos(dAngle1 * 0.017453292519943295);
ptInsect.X = ptSecondLnBeg.X;
ptInsect.Y = ptFirstLnBeg.Y + num2 * Math.Sin(dAngle1 * 0.017453292519943295);
result = 1L;
}
else if (Math.Abs(Math.Tan(dAngle1 * 0.017453292519943295) - Math.Tan(dAngle2 * 0.017453292519943295)) < 1E-08)
{
result = 0L;
}
else
{
double num3 = (ptSecondLnBeg.X - ptFirstLnBeg.X) / Math.Cos(dAngle1 * 0.017453292519943295);
double num = (ptFirstLnBeg.Y - ptSecondLnBeg.Y + num3 * Math.Sin(dAngle1 * 0.017453292519943295)) /
(Math.Sin(dAngle2 * 0.017453292519943295) -
Math.Tan(dAngle1 * 0.017453292519943295) * Math.Cos(dAngle2 * 0.017453292519943295));
double num2 = num3 + num * Math.Cos(dAngle2 * 0.017453292519943295) / Math.Cos(dAngle1 * 0.017453292519943295);
ptInsect.X = ptFirstLnBeg.X + num2 * Math.Cos(dAngle1 * 0.017453292519943295);
ptInsect.Y = ptFirstLnBeg.Y + num2 * Math.Sin(dAngle1 * 0.017453292519943295);
result = 1L;
}
return(result);
}
public static long GetInterSectPointofTwoLinesect(GPoint ptFirstLnBeg, GPoint ptFirstLnEnd, GPoint ptSecondLnBeg,
GPoint ptSecondLnEnd, ref GPoint ptInsect)
{
double angleToPt = ptFirstLnBeg.GetAngleToPt(ptFirstLnEnd);
double angleToPt2 = ptSecondLnBeg.GetAngleToPt(ptSecondLnEnd);
return(ApplyMath.GetInterSectPointofTwoLinesect(ptFirstLnBeg, angleToPt, ptSecondLnBeg, angleToPt2,
ref ptInsect));
}
