The rapid development of the city has accelerated the destruction of the existing surveying and mapping infra-structure,and the promotion of institutional reform has put forward higher requirements for achievement sharing.Based on planar four control parameter in the process of the transformation parameters calculation point expansion ability,different grade control points selection of coordinate transformation of achievement and the unknown coordinate system selection of central meridians influence on the transformation parameters such as the special geographical information results coordinate transformation work conditions are analyzed in detail,and the use of certain areas of jiangsu comparing the measured re-sults of the experiment.The results of this paper have reference value for coordinate transformation of non-traditional sur-veying and mapping,land and other industries geographic information achievements and historical stock geographic infor-mation achievements.
关键词
平面四参数/参数计算/外延/中央子午线/精度/外符合
Key words
plane four parameters/parameter calculation/epitaxy/central meridian/accuracy/out-coincidence
维普
万方数据