{"avoid_when":"只要粗略展示无需严谨投影","content_hash":"19c054efed5ea84a7bcad8234aab89ff732150146a3f8a5da16f42c186137f96","domain":"gis","evidence_urls":["https://github.com/OSGeo/PROJ"],"id":"proj","language":"C","license":"","name":"PROJ","niche":"projection","repo":"https://github.com/OSGeo/PROJ","source_updated_at":null,"status":"active","summary":"坐标转换与投影库。","tags":["gis","library","projection"],"use_when":"要精确坐标参考系转换","verification_status":"unverified","verified_at":null}