TIN is capable of preserving all the original observation data for surface representation (AbdulRahman and Pilouk, 2008). (ESRI) due to the structural stability, feature adaptability and data interpolation simplicity of TIN (AbdulRahman, 1992, Midtbø, 1996). TIN have been integrated in ArcScene, a widely applied 3D Viewer developed by Environmental Systems Research Institute, Inc. TIN-Octree and TIN-CSG where TIN is the abbreviation of Triangulated Irregular Network. Tetrahedral Network (TEN), GIS Soft Voxel (SV), Tri-Prism, Geocellular, Pyramid, 3D voronoi, Voxel (3) Hybrids (Shi, 2000, Tao, 2009): e.g. 3D Array, Octree, Constructive Solid Geometry (CSG), nĬorresponding author. grid, shape model, facet model, and boundary representation (B-rep) (2) Volume-based (Orlic, 1997, Abdul-Rahman and Pilouk, 2008): e.g. 3D GIS modeling In terms of geometry, existing approaches for 3D GIS modeling can be classified into three types (Shen et al., 2003, 2006, Shen and Takara, 2006, Fig. Since CAD method often exhibits restrictions in data structure and spatial analysis (Taylor et al., 2000), in this study we focus on GIS method. Existing methods for volumetric data modeling mainly include GIS method and CAD method (Oosterom et al., 2006, Li et al., 2009). clouds, polluted air, polluted water, forest fire and geological entities is very important in many disciplines such as hydrology, meteorology, ecology and environmental science etc. Previous work Representation of volumetric data e.g.
Keywords: 3D Data conversion Data modeling MultiPatch Contours ArcSceneġ. The ArcScene plug-in is characteristic of a time complexity of O(N), strong data structure in terms of spatial analysis, user-friendly operation, high robustness and good extendibility, and therefore it enriches ArcScene functionalities and users can benefit from the new plug-in for various applications. In this study, we have successfully developed an ArcScene plug-in for converting OBJ and VTK file formats into MultiPatch, for accessing and editing MultiPatch files, and for tracing 3D contours based on MultiPatch.
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But there are obvious limitations: (1) ArcScene does not support conversion of popular 3D formats such as Wavefront Objects (OBJ) and Visualization ToolKit (VTK) into MultiPatch (2) after the conversion, the entire dataset only forms one patch which is inconvenient for further spatial analysis (3) ArcScene does not support 3D contouring. It also supports conversion of 3D file formats into MultiPatch. As popular GIS software, ArcScene supports MultiPatch format for modeling and spatial analysis of volumetric data. Representation of volumetric data is necessary in hydrology, meteorology, ecology, environmental science and so on for modeling and visualization. The University of Mississippi, University, MS 38677, USA George Mason University, Fairfax, VA 22030, USA c University of Maryland, College Park, MD 20740, USA bĪrticle history: Received 4 October 2012 Received in revised form 24 June 2013 Accepted 7 August 2013 Available online 14 August 2013
Wong b, Fernando Camelli b, Yuling Liu c a
Computers & Geosciences 61 (2013) 104–115Ĭontents lists available at ScienceDirectĬomputers & Geosciences journal homepage: An ArcScene plug-in for volumetric data conversion, modeling and spatial analysis Dayong Shen a,n, David W.
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