internal static bool INTYPEOF(IVectorOrDirection obj, string typeString)
{
if (obj is Vector && typeString.ToLowerInvariant().Contains("vector"))
{
return(true);
}
if (obj is Direction && typeString.ToLowerInvariant().Contains("direction"))
{
return(true);
}
return(false);
}
static IVectorOrDirection IfcNormalise(IVectorOrDirection Arg)
{
// local variables
int Ndim;
Direction V = new Direction(1.0, 0.0);
Vector Vec = new Vector(new Direction(1.0, 0.0), 1.0);
double Mag;
IVectorOrDirection Result = V;
if (!EXISTS(Arg))
{
return(null);
}
else
{
if (Arg is Vector)
{
Ndim = Arg.Dim;
var vArg = Arg as Vector;
V.DirectionRatios = vArg.Orientation.DirectionRatios;
Vec.Magnitude = vArg.Magnitude;
Vec.Orientation = V;
if (vArg.Magnitude == 0.0)
{
return(null);
}
else
{
Vec.Magnitude = 1.0;
}
}
else
{
var dArg = Arg as Direction;
Ndim = dArg.Dim;
V.DirectionRatios = dArg.DirectionRatios;
}
Mag = 0.0;
for (var i = 0; i < Ndim; i++)
{
Mag = Mag + V.DirectionRatios[i] * V.DirectionRatios[i];
}
if (Mag > 0.0)
{
Mag = SQRT(Mag);
for (var i = 0; i < Ndim; i++)
{
V.DirectionRatios[i] = V.DirectionRatios[i] / Mag;
}
if (Arg is Vector)
{
Vec.Orientation = V;
Result = Vec;
}
else
{
Result = V;
}
}
else
{
return(null);
}
}
return(Result);
}
