Research on a Road Displacement Model and Parameters Determination Based on Structure Mechanics
Displacement is a significant operator to solve spatial conflicts of road elements. At present, detection and adjustment of spatial conflicts are still in the manual stage, requiring a lot of manpower, resources and time. Therefore, it is urgently needed to study displacement operation thoroughly, whether for auto map production or the actual needs of mapping applications. Fortunately, structure mechanics is the same as displacement operation of spatial conflict of map elements and are concerned with the stress, deformation and displacement of a continuous object. Therefore, this paper introduces a displacement model of a road based on structure mechanics. The method is to combine finite element method (FEM) and progressive cartography, to transform spatial conflicts of complex graphic elements to mutual relations of simple objects. On the basis of the displacement model, an algorithm and workflow is designed to verify the models effectiveness and adjust the models parameters for cartographic requirements. The experiments conclude that model parameters selection will directly influence the displacement results and elastic modulus is a key to algorithm efficiency and displacement quantity.
displacement model structure mechanics road element progressive cartography elastic modulus
Xiuqin Lu Qingsheng Guo Yi Zhang
School of Resource and Environment Science, Wuhan University, Wuhan, China School of Geodesy and Geomatics, Wuhan University, Wuhan, China
国际会议
武汉
英文
600-606
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）