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Based on different spatial scale data, and relied on GIS spatial visualization technology, this paper discusses the agglomeration and equilibrium evolution characteristics, regional gaps and scale characteristics of regional development pattern in China during the first decade in 21st century. The study shows that there is strong regularity in spatial change process between China's population and...
Taking Futouhu which is the forth largest lake in Hubei Province as the study object, based on RS and GIS technologies, using the Landsat TM remote sensing images in 1991 and in 2005 as well as local chronicles as basic data resources, combined with field surveys and GPS positioning, the data on the dynamic changes of the area and the types of Futouhu wetland from 1991 to 2005 were obtained, and then...
Collision Detection is one of the key issues on large-scale scenes roaming and it plays important part in the computer application and virtual reality. For the OBB bounding box algorithm in collision detection, this paper introduces a method based on the virtual occluders, which constructs the simple virtual occluders for OBB bounding box and realizes collision detection through intersection test...
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