نتایج جستجو برای: spatial data structure
تعداد نتایج: 3888508 فیلتر نتایج به سال:
This paper aims at an efficient treatment of spatial data using qualitative representation. We propose a new framework called PLCA, which provides a symbolic representation for the figure in a two-dimensional plane, focusing on the connections between regions. It is based on four simple objects: points (P), lines (L), circuits (C) and areas (A). The entire figure is represented as a combination...
today, scouring is one of the important topics in the river and coastal engineering so that the most destruction in the bridges is occurred due to this phenomenon. whereas the bridges are assumed as the most important connecting structures in the communications roads in the country and their importance is doubled while floodwater, thus exact design and maintenance thereof is very crucial. f...
An important issue in implementation of a GIS system is preparation of data to be entered in GIS. To produce spatial data for GIS using photogrammetric techniques, conventional method is to apply photogrammetric and GIS systems individually (off-line procedure). This approach is costly, time consuming and somehow unreliable due to the fact that 3D photogrammetric model is not available at the ...
Rural heritage includes architecture and its special landscapes. The architectural structure of rural settlements is the result of a set of human activities related to the natural and cultural environment. The salient illustration of this type of architecture can be founded in local architecture, which is the main element of rural texture. The spatial organization, establishment and physical st...
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