Triangle Constructor
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            The constructor initialize the class with the values A, B, C | 
 AffinCoordOfCross | Calculates the affine coordinates of a crosspoint of a infinitly line. To calculate the crosspoint use: pt = A + (B - A) * Lam + (C - A) * mue | 
 ClockWise | Clockwise checks the orientation of the points A, B, C relativly to direction. If we go from A to B and then to C we can apply the method of the screwdriver. If this direction show to the same side as the param direction, then we obtain true as result. | 
 Cross | "Cross" calculates more then the Method disjoint. So - in case of crossing - a value lam and the crosspoint is returned. This value ist between 0 and 1. The line is regarded as a bounded line. For the use of lam see Plane | 
 disjoint | This method checks, wheter a LineType L intersects the triangle or not. The Line is regarded as a bounded Line with Endpoints A and B. The crosspoint - if any exists - must lie between A and B. | 
 Equals (inherited from ValueType) | |
 GetHashCode (inherited from ValueType) | |
 GetPlane | Creates a Planeobject, which contains the tre Points A, B, C | 
 GetType (inherited from Object) | |
 Intersect | Checks intersecting of a not bounded Line with the Triangle | 
 Normal | Calculates a normalvector of the triangle and returns it. | 
 ToString (inherited from ValueType) |