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accessibility analysis in manufacturing processes using visibility cones

Science China(Technological Sciences) 2002年第1期45卷 47-57页

作者：尹周平丁汉熊有伦 School of Mechanical Science and Engineering Huazhong University of Science and Technology Wuhan China

accessibility is a kind of important design feature of products,and accessibility analysis has been acknowledged as a powerful tool for solving computational manufacturing problems arising from different manufacturing *** exploring the relations among approachability,accessibility and visibility,a general method for accessibility analysis using visibility cones (VC) is *** the definition of VC of a point,three kinds of visibility of a feature,namely complete visibility cone (CVC),partial visibility cone (PVC) and local visibility cone (LVC),are defined.A novel approach to computing VCs is formulated by identifying C-obstacles in the C-space,for which a general and efficient algorithm is proposed and implemented by making use of visibility ***,we discuss briefly how to realize accessibility analysis in numerically controlled (NC) machining planning,coordinate measuring machines (CMMs) inspection planning and assembly sequence planning with the proposed methods.

关键词： accessibility analysis visibility cones C-space manufacturing processes

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analysis and Evaluation of Red Resources in Shanghai Urban Area based on ArcGIS

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Journal of Landscape Research 2022年第1期14卷 81-86页

作者： SONG Rui WANG Jingyi YANG Xin MA Xin School of Architecture and Art North China University of TechnologyBeijing 100144China

Through extensive access to party history materials,combined with professional knowledge,the existing red resources in Shanghai are studied from multi-dimensional,multi-level and multi-integration perspectives,to learn party history from a new *** ArcGIS platform,the geographical distribution of red resources in Shanghai urban area is analyzed,and classification analysis,kernel density analysis and accessibility analysis are carried out according to resource types,grade of patriotism education base and grade of heritage *** existing red resources in Shanghai urban area are evaluated,and the optimization suggestions are put forward.

关键词： Red resources Shanghai urban area accessibility analysis ArcGIS

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accessibility of Rural Tourism Projects in Wan’an County Based on Highway Network Data

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Journal of Landscape Research 2022年第2期14卷 25-28页

作者： SHEN Rongtao College of City Construction Jiangxi Normal UniversityNanchangJiangxi 330000China

Relying on the national rural revitalization policy and the policy of green rise of Jiangxi,the development of rural tourism in Wan’an County has ushered in new opportunities,and traffic accessibility is one of the important factors to be considered in rural *** on the accessibility evaluation method of the shortest travel time of highway traffic,this paper analyzes the accessibility of current tourism projects in Wan’an *** results show that;①the accessibility of rural tourism projects in Wan’an County is basically good except the Tianhu Mountain;②the accessibility of rural tourism projects in Wan’an County is strong in the north and weak in the south;③the transportation network serving the rural tourism in the north of Wan’an County is relatively perfect,while S221 Provincial Highway,Daqing-Guangzhou Expressway and Wan’an-Baoshan County Road play an important role in the rural tourism project in the south of Wan’an County.

关键词： accessibility analysis Rural tourism Wan’an County

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