How to use
Right-click the mouse to set the geodetic longitude and latitude coordinates of the center point in the local country's 2000 coordinates, and you can browse image data (or other raster data on the server). The green version of the sky map image can be drawn through the rectangular frame, lower left and upper right corner coordinates to download the data. The downloaded data can be read by arcgis and saved in other formats.
Basic introduction
"Tiantu" is a comprehensive geographical information service website built by the National Bureau of Surveying, Mapping and Geographic Information. It is an important part of "Digital China" and the public version of the national geographic information public service platform. The purpose of "Heaven Map" is to promote the sharing and efficient use of geographical information resources, improve the public service capabilities and levels of surveying and mapping geographical information, improve the service methods of surveying and mapping geographical information results, better meet the needs of national informatization construction, and provide convenience for the work and life of the public.
Useful
Useful
Useful