本文選題：瓦片地圖　切入點：金字塔　出處：《武漢工程大學》2014年碩士論文　論文類型：學位論文

【摘要】：隨著計算機技術和地理信息技術的不斷發(fā)展，特別是隨著計算機網(wǎng)絡技術的快速發(fā)展，計算機與地理信息這兩者的聯(lián)系越來越緊密，WebGIS的出現(xiàn)就是這兩者融合的產(chǎn)物。伴隨著傳統(tǒng)的基于CGI,Server API,Java Applet等技術應用越來越廣泛，其缺點也更加顯露，即網(wǎng)絡傳輸數(shù)據(jù)的速度不能滿足人們快速瀏覽地圖服務的需求。其原因是因為傳統(tǒng)的WebGIS的工作原理是實時生成圖片。隨著Google Earth的出現(xiàn)，瓦片地圖金字塔模型也逐漸被人們所認識和了解。它是將配置好的地圖按照一定的規(guī)則切圖，存儲到數(shù)據(jù)庫服務器中。它可以用圖片代替動態(tài)的地圖服務，所以整個系統(tǒng)的速度得到了明顯的提高，用戶的體驗效果明顯增強。同時伴隨著A j a x技術的出現(xiàn)，將其應用于瀏覽器客戶端，使得用戶異步傳輸數(shù)據(jù)的體驗更加明顯。因此基于瓦片地圖的WebGIS系統(tǒng)應運而生。 我國是一個地質災害頻繁的國家，特別是大量礦山開發(fā)，每年因為礦山災害給國家人民帶來的損失是慘重的，因此，對礦山重大危險源的監(jiān)測顯得尤為緊迫和重要，傳統(tǒng)的礦山監(jiān)測系統(tǒng)因為不能在地圖上直觀的查看礦區(qū)地質地貌，同時也不能通過點擊某個危險源，來顯示危險源所埋設的監(jiān)測儀器的監(jiān)測數(shù)據(jù)信息。所以將瓦片地圖技術應用于礦山危險源監(jiān)測系統(tǒng)，使傳統(tǒng)的監(jiān)測系統(tǒng)增加了地圖感觀的體驗。 本文主要介紹了WebGIS基本原理，Ajax技術，瓦片地圖技術，對重大危險源管理系統(tǒng)的整體架構進行了總體設計，同時也對部分模塊進行了詳細設計和具體研究。主要工作為：首先介紹WebGIS的概念及其基本原理，然后介紹瓦片地圖服務以及其與傳統(tǒng)WebGIS服務的區(qū)別，同時介紹了地圖緩存服務、Ajax技術的優(yōu)缺點以及WebGIS系統(tǒng)使用它的必要性，然后詳細講解瓦片地圖模型的關鍵技術，接著對危險源管理系統(tǒng)的總體結構進行設計，其中包括背景、設計目標及原則、功能介紹，，然后對各個子模塊進行了詳細設計，對部分功能的實現(xiàn)代碼做出了詳細分析和說明，最后在客戶端實現(xiàn)了系統(tǒng)的功能，包括在地圖上添加危險源坐標、顯示危險源監(jiān)測數(shù)據(jù)信息、危險源巡檢管理、危險源日常監(jiān)測信息，展示了其實現(xiàn)效果。
[Abstract]:With the continuous development of computer technology and geographic information technology, especially with the rapid development of computer network technology, The connection between computer and geographic information is becoming closer and closer. The emergence of WebGIS is the result of the fusion of the two. With the traditional technology based on CGI Server API Java Applet and so on, its disadvantages are more and more obvious. That is, the speed of data transmission on the network can not meet the needs of people to browse map services quickly. The reason is that the traditional WebGIS works by creating pictures in real time. With the advent of Google Earth, The pyramid model of tile map is gradually recognized and understood by people. It is to cut the map according to certain rules and store it in the database server. It can replace the dynamic map service with the picture. So the speed of the whole system has been obviously improved, and the experience effect of the user has been obviously enhanced. At the same time, with the appearance of Ajax technology, it has been applied to the browser client. It makes the user's experience of asynchronous data transmission more obvious, so the WebGIS system based on tile map emerges as the times require. China is a country with frequent geological disasters, especially a large number of mines, which cause heavy losses to the people of our country every year because of mine disasters. Therefore, the monitoring of major hazards in mines is particularly urgent and important. Because the traditional mine monitoring system can not directly view the geological and geomorphology of the mining area on the map, at the same time, it can not click on a danger source. So the application of tile map technology to mine hazard monitoring system makes the traditional monitoring system increase the experience of map perception. This paper mainly introduces the basic principles of WebGIS, such as Ajax technology, tile map technology, and the overall design of the overall structure of the management system of major hazard sources. At the same time, some modules are designed and studied in detail. The main work is as follows: first, introduce the concept and basic principle of WebGIS, then introduce the tile map service and its difference from the traditional WebGIS service. At the same time, this paper introduces the advantages and disadvantages of map caching service Ajax technology and the necessity of using it in WebGIS system, then explains the key technology of tile map model in detail, and then designs the overall structure of hazard management system, including the background. Design objectives and principles, function introduction, and then the detailed design of each sub-module, part of the implementation of the code to make a detailed analysis and description, finally in the client to achieve the functions of the system, It includes adding the coordinates of dangerous sources to the map, displaying the information of monitoring data of dangerous sources, inspecting and managing dangerous sources, daily monitoring information of dangerous sources, and showing the effect of its realization.
【學位授予單位】：武漢工程大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TD76

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本文編號：1611996