Abstract
Abstract. “Multi-conformity” requires the unification of surveying and mapping coordinate system. The Ministry of Natural Resources calls for the unified use of CGCS2000 coordinates in natural resources systems. Therefore, “multi-conformity” can only be carried out in the CGCS2000 coordinate system. In Bijie Experimental Area, the projection deformation of CGCS2000 coordinate system is far greater than the requirement of 2.5cm/km stipulated in the urban surveying, so it can not be directly used in urban construction, and its own independent coordinate system must be established. In order to resolve this contradiction and meet the requirements of “multi-conformity”, Ministry of Natural Resources and urban construction, to explore the transformation of geographic information data under CGCS2000 coordinate system into urban independent coordinate system data in time by using the cloud computing function of big data under the condition of unification of basic data to meet the needs of engineering construction and to serve the economic construction of Bijie Experimental Area.
Highlights
Bijie Experimental Area was proposed by Hu Jingtao, Secretary of Guizhou Provincial Party Committee, and approved by the State Council of the People’s Republic of China as an experimental area of "development and poverty alleviation, ecological construction and population control "
The Ministry of Natural Resources stipulates that since July 1st, 2018, the CGCS2000 coordinate system will be all-around used in the natural resources system
The projection deformation of CGCS2000 coordinate system will reach 20 cm/km under the natural geographical conditions of the central city of Bijie Experimental Area, which is much larger than the requirement of 2.5 mm/km stipulated in the urban survey code
Summary
Bijie Experimental Area was proposed by Hu Jingtao, Secretary of Guizhou Provincial Party Committee, and approved by the State Council of the People’s Republic of China as an experimental area of "development and poverty alleviation, ecological construction and population control ". It is an area concerned by the former presidents Hu Jingtao and the present president Xi Jinping and his father. In December 2013, Chinese Communist Party Central Committee proposed that a unified spatial planning system should be established, the boundaries of urban development should be limited, the red line of urban ecology should be delineated, and a blueprint should be achieved to the end. The Ministry of Natural Resources stipulates that since July 1st, 2018, the CGCS2000 coordinate system will be all-around used in the natural resources system
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