/// <summary>returns direction of turn of 2 subsequent lines in a shape. 1 for clockwise; 0 for parallel</summary>
internal static int TurnDirection(SizeF szA, SizeF szB)
{
return(-Math.Sign(szA.CrossProduct(szB)));
}
/// <summary>returns direction of turn of 2 subsequent lines in a shape. 1 for clockwise; 0 for parallel</summary>
internal static int TurnDirection(SizeF szA, SizeF szB)
{
return(-Math.Sign(szA.CrossProduct(szB)));
}