The Geometrical Characteristic Description Method of Part Drawing
Mei Li, Yan Xue Dong · Advanced materials research · 2011
Aim at the demand of feature modeling and recognition of engineering drawing, this paper put forward a mechanical file as real time defining and editing tool of feature, converting the restriction of parametric drawing to the same point relation, structure restriction and dimension restriction, marking the drawing structure of the file using of the extending data entity. So that the file can support the feature modeling and recognition, realize the structure management of engineering drawing.