A new method to recognize dimension sets and its application in architectural engineering drawings

摘要

Recognition of dimension sets is a prerequisite for engineering drawings interpretation. A new heuristic algorithm for dimension sets recognition is presented in this paper. Following the recognized text strings, the algorithm recognizes the dimension lines and other components of the dimension set according tot he dimension set syntax. The advantages of this algorithm tot he architectural engineering drawings are unmatched. A data structure of planar position index is used and evaluated. Experimental results are also presented.