图形区域操作的ARX关键技术

Key Algorithms of Graphic Blocks Management in Areas Based on ARX

在AutoCAD Object ARX丰富类库的基础上,设计若干关键算法来完整地实现对多个指定区域内图形的识别及分类的想法.通过推广点是否在区域内的判定算法发展出新的图形区域重叠判别算法.在关键功能模块的实现中,采用基于图块识别技术进行分类统计.这里所实现的技术对大规模建筑群内的建筑材料、装饰家具等基本构件的布置、判别、统计及其报价的智能化具有重要意义.

In the field of Secondary development of AutoCAD based on ObjectARX nowadays, there is few research on identifying and classifying graphic blocks in some defined areas. On the foundation of abundant ARX classes, some algorithms were given to realize above-mentioned functions. Thereinto, the algorithm that how to pick out cross areas was deduced from the algorithm how to identify points in areas. In the key function, the algorithm based on blocks identification was realized to classify the graphic blocks. The method given in this paper was useful for the calculation and quotation of mass building components and furniture etc.