The Data Transfer Method Based on Geo-spatial data transfer format
WANG Yan dong, GONG Jian ya, HUANG Jun tao, DENG Yue jin (National Laboratory for Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan Technical University of Surveying and Mapping,Hubei 430079,China)
Geo Spatial Data Transfer Standard is an important part of “National Spatial Data Infrastructure(NSDI)”, as well as a necessary means for data sharing. “Chinese National Geo spatial data transfer format (CNSDTF)” was approved by State Bureau of technical supervision in 1999 with the standard serial number of 17798 1999. After introducing the design ideas, main characters and data structure of CNSDTF, some Geo spatial data transfer methods that are based on popularizing CNSDTF and improving the data transfer with the foreign GIS software, are brought forward. Some suggestions about data sharing and NSDI are discussed.