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《Journal of Liaoning Technical University》 2007-06
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Establishment of fine DEM of stop of open-pit mine

CHE Yan-guo,LI Lan-yong(College of Surveying and Mapping and Geographical Science,Liaoning Technical University,Fuxin123000,China)  
In view of the fact that the land feature of the stopl of an open-pit mine assumes ladder–shaped distribution of the earth surface and the methods of general DEM establishment can’t describe the surface of open-pit mine,the method is given with which fine DEM of open-pit mine is established.The peper elaborates the methods of extracting elevation data from maps of DWG format,establishing fine DEM of open-pit by adding sidestep attribute to original data and adding restriction conditions to build delaunary triangle net,thus realizing the precision description of three-dimensional surface.
【Fund】: 辽宁省科学技术厅基金资助项目(05L181);; 辽宁省科技厅基金资助项目(2004D022)
【CateGory Index】: TD804
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