Guanhai_Map production and sharing

Map making and sharing Guanchanghai is a knowledge map production and sharing platform. It combines maps and texts to reflect China's historical, military, geographical, cultural and other knowledge, and provides users with map collaboration and sharing services. Function: GIS tools: Built-in GIS tools such as ranging and area survey are convenient for historical geographical research. Tip: Search for "Chang 'an" on the map to see its glory during the Han and Tang Dynasties Historical map: Contains historical maps from the Xia, Shang and Zhou dynasties to the Ming and Qing dynasties, marking the comparison of ancient place names and modern place names. Space-time comparison: Support the cascading display of maps of the same place in different dynasties to visually compare historical changes. Website: www.ageeye.cn New version address: ageeye.app.ditushu.com/