Hello, I am a Chinese user. My server uses the latest version V6.3, and the client also uses the latest version v6.3. The default locationIQ map is very accurate. However, the locationIQ map does not provide complete information about China's roads, so most Chinese people use AutoNavi maps. I found that the GPS position of AutoNavi maps is offset by about several hundred meters. I read the official guidance of AutoNavi maps. The GPS coordinates he uses are encrypted gcj02, not the internationally used wgs84 coordinates, so there will be a position offset problem. The official AutoNavi map provides some conversion methods. I hope you can update the software code to solve the problem of AutoNavi map offset.
The reference content is as follows:
https://developer.amap.com/faq/ios/map-sdk/calculation-tool/47037/
iOS coordinate conversion method.
https://a.amap.com/lbs/static/unzip/iOS_Map_Doc/AMap_iOS_API_Doc_2D/_m_a_geometry_8h_source.html
Come on, I will continue to pay attention to this issue.
Hello, I am a Chinese user. My server uses the latest version V6.3, and the client also uses the latest version v6.3. The default locationIQ map is very accurate. However, the locationIQ map does not provide complete information about China's roads, so most Chinese people use AutoNavi maps. I found that the GPS position of AutoNavi maps is offset by about several hundred meters. I read the official guidance of AutoNavi maps. The GPS coordinates he uses are encrypted gcj02, not the internationally used wgs84 coordinates, so there will be a position offset problem. The official AutoNavi map provides some conversion methods. I hope you can update the software code to solve the problem of AutoNavi map offset.
The reference content is as follows:
https://developer.amap.com/faq/ios/map-sdk/calculation-tool/47037/
iOS coordinate conversion method.
https://a.amap.com/lbs/static/unzip/iOS_Map_Doc/AMap_iOS_API_Doc_2D/_m_a_geometry_8h_source.html