二维有限元网格图象的识别

Recognition for two-dimension finite element mesh drawings

提出了二维有限元网格图的识别方法．通过对一帧网格图的扫描和二值 化，从中识别出节点和边两种基元．根据这两种基元的拓朴关系生成对称邻接矩阵Ａ，以线度作为限定条件在Ａ的上三角进行单元匹配操作，最后生成 可供应用程序读取的节点坐标和单元表示数据．

A recognition approach to a two-dimension finite element mesh drawings is presented. A mesh drawing is scanned and made into binary image. Then, nodes and links, two kinds of primitives ,are recognized from the drawing. Based on the topological property of the two kinds of primitives, a symmetrical adjacent matrix is generated. Line degree is taken for limitative condition for the recognition of elements which is advanced on the upper triangular matrix of A. At last , nodes coordinate and express data of elements which interfaces with application program are generated.