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Study of WalkGIS Spatial-temporal Data Model and the Application in Land Use Planning System

Author: LiYongZuo
Tutor: LouYu
School: Zhejiang University
Course: Management of land resources
Keywords: Entity Instance Space - time model Version management Time and space management
CLC: P208
Type: Master's thesis
Year: 2010
Downloads: 126
Quote: 0
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Abstract


Land use planning work continues to mature , the various types of historical data query and retrieval is more and more frequently , land management workers to the new requirements of the proposed space-time management data management . This paper as a sub-project of the national support program ', mainly with the land use planning system, follow the the OpenGIS agreement based WalkGIS platform temporal data model research and design , in order to achieve a time in the land use planning system management functions . WalkGIS temporal data model for the space-time entity object management , time and space objects have multiple instances of tense , traditional sense of the object data model is only a single temporal instances of entity - oriented management . WalkGIS temporal data model to establish and maintain a physical space constraint relations and examples of the timing relationship , object-oriented discrete relationship ( object - relational ) to changes in the object-oriented spatial and temporal relations (object - spatial and temporal relationships) , to establish the temporal relationship between the entity for a long time state instance , and instance space constraints of each tense relationship . This paper focuses on the management and design of the time pattern of the elaborated model . In this paper , the design of the temporal data model using the concept of \compressed version ; dump version . This will combine the data of land use planning , experimental design, WalkGIS temporal data model to simulate the function of the elements of the present situation and historical data access , version derived version submitted . In this paper include the temporal relationships between model definition , model scenarios , model design constraints , version conflict and reconciliation , data structure design, time and space management functions to achieve content .

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CLC: > Astronomy,Earth Sciences > Surveying and Mapping > General issues > Mapping database and information system
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