ISO 10303-214:2010(E)
A Planar_top_condition is a top condition of a boss that is flat.
A Planar_top_condition is a type of Boss_top_condition.
The data associated with a Planar_top_condition are the following:
The top_location specifies a Cartesian point on the planar top; this point shall defined in the same Cartesian_coordinate_space as the concerned Boss_feature.
The top_normal specifies a direction vector that shall be defined in the same Cartesian_coordinate_space as the concerned Boss_feature. The top_normal indicates a direction normal to the planar top pointing away from material.
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