本文選題：移動地圖 + 變比例尺��； 參考：《鄭州大學》2013年碩士論文

【摘要】：當今移動信息設(shè)備和無線網(wǎng)絡(luò)技術(shù)的飛速發(fā)展促進了移動GIS服務(wù)的廣泛應(yīng)用。移動地圖作為移動GIS的重要表現(xiàn)方式,也被人們熟悉和使用并逐漸成為現(xiàn)代社會中,輔助人們進行空間認知的重要工具。但是由于移動信息設(shè)備不同于以往的數(shù)字設(shè)備,存在顯示區(qū)域相對較小,操作相對不便的特點。移動地圖使用傳統(tǒng)數(shù)字地圖的表達方式可能造成地圖信息不平衡,易讀性較低的問題,不能完全滿足用戶對移動地圖的需求。因此,尋找更為適合移動地圖的表達方式是移動地圖發(fā)展的當務(wù)之急。本文提出了一種自適應(yīng)的移動地圖變比例尺表達方法,希望能達到提高移動地圖信息載負量,平衡移動地圖空間信息分布,提高移動地圖易讀性的目的。 本文首先介紹了移動地圖技術(shù)的發(fā)展,并著重討論了移動自適應(yīng)地圖的基本特征和關(guān)鍵技術(shù),提出了移動地圖表達的關(guān)鍵問題在于移動設(shè)備顯示區(qū)域有限與用戶渴望獲取更多空間信息的矛盾,移動設(shè)備操作不便與實際空間地物分布不均的矛盾。之后說明了變比例尺地圖充分利用地圖空間的特性可以作為解決移動地圖表達問題的方法之一,并重點對不同介質(zhì)的變比例尺地圖表達模型的原理、算法、顯示效果及其優(yōu)勢進行了分析和比較,作為選擇移動設(shè)備合適的變比例尺表達模型的參考。 自適應(yīng)移動地圖可以有效的減少用戶對移動地圖的操作,而變比例尺地圖表達可以更加充分的利用移動設(shè)備的顯示區(qū)域,有效提高移動地圖的信息載負量。本文將這兩種方法結(jié)合,提出了自適應(yīng)移動地圖變比例尺表達方法。使用拓撲關(guān)系代替度量關(guān)系確定焦點區(qū)域的方法,有效降低了因空間地物分布不均導(dǎo)致地圖信息不平衡情況的發(fā)生；針對移動設(shè)備計算能力相對較低的特點,選擇了適合移動設(shè)備的變比例尺表達模型；引入形狀測度模型,用于計算用戶鄰近區(qū)域的圓形率,并通過圓形率數(shù)值選擇變比例尺模型,降低了變比例尺模型引起的地物畸變程度。 地圖載負量是評價地圖制圖的一個重要指標。本文在原有的紙質(zhì)地圖載負量計算方法之上,通過分析地圖載負量的計算原理,結(jié)合移動地圖和變比例尺地圖的特有性質(zhì),對原有計算公式及方法進行了改進,提出了移動變比例尺地圖載負量的計算方法。通過實驗,將移動變比例尺地圖載負量與傳統(tǒng)移動地圖載負量進行比較,得到移動變比例尺地圖在保證其核心部分顯示細節(jié)不丟失的情況下,信息載負量優(yōu)于傳統(tǒng)移動地圖的結(jié)論。 最后,利用Windows Mobile6.0SDK和ArcGIS Sever Mobile SDK,使用Visual Studio2005C#在移動設(shè)備模擬器上進行了實驗系統(tǒng)開發(fā),并使用鄭州市道路網(wǎng)和水系數(shù)據(jù)進行了系統(tǒng)測試和檢驗,取得了較好的效果。 移動地圖變比例尺表達方法可以在清晰表達用戶周圍地理細節(jié)的同時兼顧展現(xiàn)邊緣區(qū)域更多的空間信息,并且有效減少了用戶的操作次數(shù)。為移動地圖表達提供了一種新的思路和新的研究方向。
[Abstract]:The rapid development of mobile information equipment and wireless network technology has promoted the wide application of mobile GIS services. As an important expression of mobile GIS, mobile maps are also familiar and used by people and gradually become important tools to assist people to carry out spatial cognition in modern society. However, mobile information equipment is different from the past. The digital equipment has the characteristics that the display area is relatively small and the operation is relatively inconvenient. The use of the traditional digital map expression in the mobile map may cause the imbalance of the map information and the low readability, and can not fully satisfy the user's demand for the mobile map. Therefore, the way to find more suitable for mobile maps is to move. In this paper, an adaptive method of variable scale expression for mobile map is proposed, which can improve the load of mobile map information, balance the distribution of spatial information of mobile map, and improve the readability of mobile map.
This paper first introduces the development of mobile map technology, and focuses on the basic features and key technologies of mobile adaptive map, and puts forward that the key problem of mobile map expression is the contradiction between the limited display area of mobile devices and the desire to obtain more spatial information, and the inconvenient operation of moving equipment and the distribution of real space objects. Then it shows that the variable scale map makes full use of the characteristics of map space as one of the methods to solve the problem of moving map expression, and focuses on the analysis and comparison of the principle, algorithm, display effect and advantages of variable scale map expression model of different media, as the appropriate change of mobile devices. The reference of the scale expression model.
The adaptive mobile map can effectively reduce the operation of the mobile map, and the change of the scale map can make full use of the display area of the mobile device and effectively improve the load of the mobile map. This paper combines these two methods, and puts forward a variable scale expression method of adaptive mobile map. The method of determining the focus area instead of the measurement relationship effectively reduces the uneven distribution of the map information because of the uneven distribution of the space and ground objects. In view of the relatively low computing power of the mobile devices, the variable scale expression model suitable for mobile devices is selected and the shape measure model is introduced to calculate the adjacent area of the user. The circular ratio of the domain is selected, and the scale model is selected by the circular ratio value, which reduces the distortion degree of the terrain caused by the variable scale model.
In this paper, on the basis of the calculation method of load carrying capacity of map and the characteristic of mobile map and variable scale map, the original calculation formula and method are improved on the basis of the original load load calculation method of paper map. By comparing the load load of the mobile variable scale map and the traditional mobile map load, the results of the mobile variable scale map are better than the traditional mobile map in the case of ensuring that the details of the core part are not lost.
Finally, using Windows Mobile6.0SDK and ArcGIS Sever Mobile SDK, the experiment system is developed on the mobile device simulator using Visual Studio2005C#, and the system test and test are carried out using the road network and water system data in Zhengzhou, and the good results have been obtained.
The variable scale expression method of mobile map can clearly express the details around the user and show more spatial information in the edge area, and effectively reduce the number of operation of the user. It provides a new way of thinking and new research direction for the movement map expression.

【學位授予單位】：鄭州大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：P208

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本文編號：1859825