期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2000
卷号：XXXIII Part B4 (/1-3)
页码：30-37
出版社：Copernicus Publications
摘要：This paper focuses on the development of an object-oriented Triangular Irregular Networks (TINs) subsystems for GIS. It reviews the current development of 3D GIS which includes a discussion of the needs, demands, and related modelling and structures for a system. In the third section of the paper, we discuss the concept of object-oriented modelling and specific modelling for the TIN approach. The TIN structures are based on Delaunay triangulation which utilises the concepts of digital image transformation and Voronoi diagrams. The generated structures are used as the core data structures in the spatial modelling. The relevant aspects of TIN-based object-oriented modelling are introduced in section 4. Section five presents the implementation of the above concepts of the TIN- based spatial data in subsystems for the proposed object-oriented system in which a commercial OODBMS package is utilised. The subsystems are tested using photogrammetrically digitized datasets and presented visually by the display interface that we developed (called TINSoft). We also developed some GIS applications, e.g. contouring. Finally, we discuss some challenges and improvements needed for this kind of GIS system
关键词：TIN; Spatial Data Modelling; Object-Oriented; and GIS
