A spatial data model and its application in 3D geological modeling

2013 ◽  
Author(s):  
Hua Xu ◽  
Qiang Wu ◽  
ZiQiang Ma ◽  
WenYue Fei ◽  
QiuFeng Dong
Keyword(s):  
Spatial Data ◽  
Data Model ◽  
Geological Modeling ◽  
3D Geological Modeling ◽  
Spatial Data Model

Spatial data model for underground mine 3D visual production management and control system

2013 ◽  
Vol 32 (2) ◽  
pp. 581-584
Author(s):  
Shu-min XIONG ◽  
Li-guan WANG ◽  
Zhong-qiang CHEN ◽  
Jian-hong CHEN
Keyword(s):  
Control System ◽  
Spatial Data ◽  
Data Model ◽  
Production Management ◽  
Underground Mine ◽  
And Control ◽  
Spatial Data Model

scholarly journals An Approach to Generate Spatial Voronoi Treemaps for Points, Lines, and Polygons

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Song Tian ◽  
Ximin Cui ◽  
Yu Gong
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Spatial Data ◽  
Data Model ◽  
Space Filling ◽  
Distance Transformation ◽  
Voronoi Polygons ◽  
Spatial Coordinates ◽  
Filling Method ◽  
Spatial Data Model

As a space-filling method, Voronoi Treemaps are used for showcasing hierarchies. Previously presented algorithms are limited to visualize nonspatial data. The approach of spatial Voronoi Treemaps is proposed in this paper to eliminate these problems by enabling the subdivisions for points, lines, and polygons with spatial coordinates and references. The digital distance transformation is recursively used to generate nested raster Voronoi polygons while the raster to vector conversion is used to create a vector-based Treemap visualization in a GIS (geographic information system) environment. The objective is to establish a spatial data model to better visualize and understand the hierarchies in the geographic field.

Integrated 3D Spatial Data Model of Object-Oriented Digital Landslide

2012 ◽  
Vol 204-208 ◽  
pp. 4872-4877
Author(s):  
Da Xi Ma ◽  
Xiao Hong Liu ◽  
Li Wei Ma
Keyword(s):  
Spatial Data ◽  
Data Model ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Data Modeling ◽  
Object Oriented ◽  
Landslide Modeling ◽  
Space Data ◽  
Spatial Data Model ◽  
Three Dimensional Space

By analyzing the attributes of three-dimensional space data model, the integrated 3D spatial data adopts object-oriented method for digital landslide modeling. It achieves spatial data modeling for landslide geological entity. An experimental case is given to indicate the feasibility of this approach for spatial data modeling.

Vector-Based Realisation of Geographical Voronoi Treemaps With the ArcGIS Engine

2021 ◽  
Vol 14 (1) ◽  
pp. 37-54
Author(s):  
Song Tian
Keyword(s):  
Spatial Data ◽  
Data Model ◽  
Hierarchical Data ◽  
Spatial Structures ◽  
Application Range ◽  
Arcgis Engine ◽  
Spatial Coordinates ◽  
Spatial Data Model

In geographical field, the researches on spatial hierarchies are extensive, but there is a lack of effective method to generate and express hierarchical spatial structures. As a frequently-used visualising method, Voronoi Treemaps are able to represent hierarchical data, but limited to displaying non-spatial data. The approach of geographical Voronoi Treemaps is proposed to solve these problems by allowing for spatial division from point features with spatial coordinates and references. Additionally, this enables to create hierarchical layouts in the form of Voronoi Treemap in GIS environments with the ArcGIS Engine. The generated layouts are saved in a geodatabase, which is convenient for adding GIS enhancements such as colouring, edge sizes, legends, borders, scales, and compass. The approach aims to establish a kind of spatial data model to represent urban hierarchies, organisation structures and region differences and so on, which expands the application range of Voronoi Treemaps in the geographical field.

scholarly journals Combinatorial Spatial Data Model for Building Fire Simulation and Analysis

2019 ◽  
Vol 8 (9) ◽  
pp. 408
Author(s):  
Song ◽  
Niu ◽  
Li
Keyword(s):  
Spatial Data ◽  
Data Model ◽  
Unified Modeling Language ◽  
Fire Dynamics ◽  
Unified Modeling ◽  
Building Fire ◽  
Spatial Environment ◽  
Geographic Process ◽  
Fire Scene ◽  
Spatial Data Model

Building fire is a complex geographic process related to the indoor spatial environment, a smart spatial data model can accurately describe the spatial-temporal information of a building fire scene, which is important for modeling a fire process. With the development of fire dynamics and computer science, many building fire models have been proposed and widely used. However, the spatial representation of these models is relatively weak. In this study, a fire process modeled via the Fire Dynamics Simulator (FDS) and the requirements of a spatial data model are initially analyzed. Then, a new spatial data model named the Combinatorial Spatial Data Model (CSDM) is combined with Geographic Information System (GIS). The key features of the CSDM, which include spatial, semantic, topological, event and state representations of a building fire scene modeled via the CSDM are subsequently presented. In addition, the Unified Modeling Language (UML) class diagram of the CSDM is also presented, and then experiments with a simplified building are conducted as a CSDM implementation case. A method of transferring data from the CSDM to FDS and a building fire analysis approach using the CSDM are subsequently proposed.

scholarly journals A spatial data model for urban spatial–temporal accessibility analysis

2020 ◽  
Vol 22 (4) ◽  
pp. 447-468
Author(s):  
Zhangcai Yin ◽  
Zhanghaonan Jin ◽  
Shen Ying ◽  
Sanjuan Li ◽  
Qingquan Liu
Keyword(s):  
Spatial Data ◽  
Data Model ◽  
Accessibility Analysis ◽  
Spatial Data Model

Research on the Application of 3D Modeling and Visualization Method in Construction Mine Model

2014 ◽  
Vol 926-930 ◽  
pp. 3208-3211
Author(s):  
Sheng Miao Li ◽  
Ke Yan Xiao ◽  
Xiao Ya Luo ◽  
Chun Hua Wen ◽  
Xi Gan
Keyword(s):  
Spatial Data ◽  
Data Model ◽  
3D Model ◽  
Research Study ◽  
Drill Hole ◽  
Geological Body ◽  
Modeling Data ◽  
Spatial Data Model ◽  
Hole Axis ◽  
Modeling Algorithm

The spatial data of mine is analyzed and processed in this study. This research mainly include: calculate 3d coordinate of points of drill hole axis, calculate 3d coordinates of drill hole axis and stratum surface, insert virtual drill hole and calculate it's ostiole 3d coordinate, divide and number stratum of study area. Finally, this research design drill hole database and realize storage and management of mine geological data. This study also researched the classification and characteristics of 3d spatial data model. Based on distribution characteristics of mine data and application purpose of 3d model, this paper choose quasi tri-prism as basic volume to build 3d geological model. The improvement of data structure and modeling algorithm of quasi tri-prism make it can better adapt to the complex geological body modeling. This research study the expansion rule of triangle, modeling algorithm of quasi tri-prism and finally design geologic body database and realize storage and management of geological modeling data.

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