it is difficult to divide the residential and educational functional zone from comprehensive functional zone due to the presence of fuzzy area between them in the the urban vibration functional zoning 摘要在城市振动功能区划中,居民文教区和混合区往往难以界定,其原因是两者之间存在着模糊区间。
therefore, this thesis mainly researches that how to set up the uncertainty model of fuzzy area and how to analyze the topological relation about fuzzy areas, based on the vector gis and using some knowledge including fuzzy mathematics and measure adjustment and so on 因此,本论文基于矢量gis,利用模糊数学、测量平差等知识,主要研究了如何建立模糊地理区域的位置和属性不确定性模型以及在建立地理信息不确定性模型后如何进行和模糊地理区域相关的空间拓扑关系分析。
therefore, this thesis mainly researches that how to set up the uncertainty model of fuzzy area and how to analyze the topological relation about fuzzy areas, based on the vector gis and using some knowledge including fuzzy mathematics and measure adjustment and so on 因此,本论文基于矢量gis,利用模糊数学、测量平差等知识,主要研究了如何建立模糊地理区域的位置和属性不确定性模型以及在建立地理信息不确定性模型后如何进行和模糊地理区域相关的空间拓扑关系分析。
however, there are also large numbers of fuzzy areas without specific boundaries in the real world . these areas " boundaries are normally difficult to locate, and their uncertainties are difficult to control because their uncertainties come from many facets . but these areas are very important in the analyzing of gis, so it is essential to research the uncertainties of fuzzy areas and make the sound models 然而现实世界中也存在大量的无明确空间范围的模糊地理区域,这类区域的边界往往难以测定,其不确定性也因为源自很多方面而难以控制,但是这类区域在gis分析中却也是相当重要的,所以必须研究模糊地理区域的不确定性并给出合理的位置和属性不确定性模型。
however, there are also large numbers of fuzzy areas without specific boundaries in the real world . these areas " boundaries are normally difficult to locate, and their uncertainties are difficult to control because their uncertainties come from many facets . but these areas are very important in the analyzing of gis, so it is essential to research the uncertainties of fuzzy areas and make the sound models 然而现实世界中也存在大量的无明确空间范围的模糊地理区域,这类区域的边界往往难以测定,其不确定性也因为源自很多方面而难以控制,但是这类区域在gis分析中却也是相当重要的,所以必须研究模糊地理区域的不确定性并给出合理的位置和属性不确定性模型。