Plane Supported Versions 1 Subtype of Manifold Fields The class is defined by the following fields: Entity/Object Variable Description integer Version integer d Space dimension Transform Transformation double[d] p The point in the plane with parameter value (0,0) double[d] n Normal vector double[d] b Direction of first parameter axis Description This manifold defines a plane in the three dimensional space. It is represented by a point, a unit vector normal to the plane, and the vector of the u derivative. A plane is open in both parameter directions and neither periodic nor singular at any point. It is parameterized as: pos = p + u*b + v*(n x b) Example 5 Plane # class 0 0 # version 3 # sdim 0 3 1 # transformation 1.3 0.80000000000000004 1.6000000000000001 # root point -6.1257422745431001e-017 0 1 # normal -1 0 -6.1257422745431001e-017 # derivatives 0 # degenerated?