{'fraction_non_alphanumeric': 0.011786038077969175, 'fraction_numerical': 0.005439709882139619, 'mean_word_length': 5.308571428571429, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Volume Based Approach to Extract 3-D Parts from 2D Assembly Drawing

This paper extends an earlier volume-based approach to automatically reconstruct 3D parts from the 2D orthographic views of an assembly drawing. Most of the work in automatic reconstruction of 3D solids using volume-based approach from 2D orthographic views has been done only for single component drawings. The proposed method identifies elementary solids called candidate blocks from the orthographic views and then combines these solids to obtain different parts in the assembly. The candidate blocks are combined on the basis of some conditions defined based on the validity of solids and characteristics of an assembly. Earlier efforts towards addressing multi-part assembly drawing either require additional inputs in the form of labeling of parts in the drawing, additional special cross-sectional views or are restricted to assemblies with standard parts. Results have been achieved for some typical engineering assembly drawings. Future work will address extension of this algorithm to assembly drawings with sectional views.