The Coincidence class is used in an Inteference to store information on the "hiding" edge.
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The Coincidence class is used in an Inteference to store information on the "hiding" edge.
2D Data : The tangent and the curvature of the projection of the edge at the intersection point. This is necesserary when the intersection is at the extremity of the edge.
3D Data : The state of the edge near the intersection with the face (before and after). This is necessary when the intersection is "ON" the face.