首先介绍了利用边与边之间的邻接拓扑关系构造邻接矩阵的方法 ,并提出了一种搜索建筑平面图房间的算法 ,可以快速准确地确定平面图内的房间、墙线与顶点的拓扑关系 ,同时 ,给出了实现的方法及应用 Firstly, the method of constructing adjacency matrix by using the adjacency topological relations between edges and edges is introduced, and an algorithm for searching room in building plan is presented. It can quickly and accurately determine the topological relations between rooms, wall lines and vertices in plan view. Meanwhile, , Gives the method and its application