private static bool TryGetPlaneVectors(WKSPointZ normal, WKSPointZ vector,
out WKSPointZ planeVector1,
out WKSPointZ planeVector2)
{
planeVector1 = WKSPointZUtils.GetVectorProduct(normal, vector);
const double e = 0.1;
if (GetLength2(planeVector1) < e)
{
planeVector2 = new WKSPointZ();
return(false);
}
planeVector1 = WKSPointZUtils.GetNormed(planeVector1);
planeVector2 = WKSPointZUtils.GetVectorProduct(normal, planeVector1);
return(GetLength2(planeVector2) >= e);
}
public WKSPointZ GetPlaneVector()
{
WKSPointZ normal = GetNormalVector();
WKSPointZ planeVector;
if (TryGetNormal(normal, WKSPointZUtils.CreatePoint(1, 0, 0), out planeVector))
{
}
else if (TryGetNormal(normal, WKSPointZUtils.CreatePoint(0, 1, 0), out planeVector))
{
}
else if (TryGetNormal(normal, WKSPointZUtils.CreatePoint(0, 0, 1), out planeVector))
{
}
else
{
throw new InvalidOperationException("unable to create plane vector");
}
WKSPointZ normedPlaneVector = WKSPointZUtils.GetNormed(planeVector);
return(normedPlaneVector);
}