geographic query and analysis 中文意思是什麼
geographic query and analysis
解釋
地理查詢和分析- geographic : adj. 地理學的，地理的。adv. -ically
- query : n 1 質問；詢問；疑問，懷疑。2 敢問，請問〈在疑問句前單獨使用〉。3 【印刷】（打在原稿或校樣上的）...
- and : n. 1. 附加條件。2. 〈常 pl. 〉附加細節。
- analysis : n. （pl. -ses ）1. 分解，分析；【數學】解析。2. 梗概，要略。3. 〈美國〉用精神分析法治療（＝ psychoanalysis）。
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As far as model is concerned, the forth generation software should be characterized with spatial entity - oriented. the paper established the geographic spatial model based on the thinking of object - oriented ; studied the structure of the model " s elementary unit - - geographic entity ; brought forward the concept of geometric data type which characterize entity ' s spatial feature in the structure ; defined five kinds of geometric data types such as point, arc, area, composite arc, composite area ; and formalized their collective operation using hypergraph. at the end of this paper writer studied preliminarily the method of entity query and analysis based on the model
本論文從面向對象的基本思想出發，建立了面向對象的地理空間模型；研究了地理空間模型中的基本單位? ?地理實體的結構，針對實體結構中用來表徵實體空間特性的組成部分? ?幾何對象，提出了其取值范圍，即幾何數據類型的概念；對點、弧、面、復合弧和組合面五種幾何數據類型進行了定義；並使用超圖工具對幾何數據類型的集合操作進行了形式化描述；對基於面向對象的地理空間模型的實體查詢和分析方法也做了初步研究。 -
" digital land " project posed by national land resources ministry in land and resource survey, is another information project after " digital earth ". this indicates resource information management has been one of the important subjects in present science and technology fields. the mineral resources are an important part of national land resources. they are one of the most basic and important production data which the human beings rely on for existence and develope by. and also are the matter foundation of national economy and society development. thefore, it ' s very significant to promote rationally developing and utilizing the mineral resources by changing the traditional management method, applying the modern information technology to establish the mineral resources management system. geographic information system is just a comprehensive information technology capable to store, manage, analyze and display spatial data, and its powerful spatial query and spatial analysis function have been used in both natural and social sciences, especially in the field of the national resources management. on gis platform, the article studies the designment and development of the mineral resources management system in yulin, and probes into an information method of the mineral resources management in theory and practice
地理信息系統正是一門對空間數據的存儲、管理、分析、顯示的綜合性技術，其強大的空間查詢與分析功能已被廣泛應用於自然科學與社會科學，尤其是在國土資源管理領域中。為此本文以gis軟體為平臺，開展了榆林礦產資源信息管理系統的設計與開發工作，在理論和實踐上探討一種礦產資源管理的信息化方法。文中在分析了系統功能需求的基礎上，建立了圖形數據與屬性數據兩類相結合的數據庫，實現了圖形數據庫中內部屬性表與屬性數據庫中外掛屬性表的連接，將圖形數據與屬性數據統一存儲、處理和分析，可對礦區已有資料實施信息化管理。
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