摘要
2015年,天地图河南政务版数据更新,只是对1∶1万可公开地理数据和地理国情普查数据进行处理,从中选取表达准确、现势性好、精度高、内容全的要素进行合并,并对合并后的结果进行几何拓扑、逻辑一致性处理,使处理后的地理信息数据在现势性、准确性、丰富性等方面达到最优,提高天地图河南政务版数据的现势性,满足用户对政务版数据的需求。
In 2015, the government version data update of ＂Tianditu·Henan＂, only 1∶10 000 public geographic dataand geographic national census data were processed, the selected elements of accurate expression, good currency,high precision and full content were merged, and the geometric topology and logical consistency of the combined re-sults were processed, the geographic information data processing was achieved optimally at currency, accuracy andrichness etc., to improve the currency of government version data of ＂Tianditu·Henan＂, to meet the needs of users onthe government version data.
出处
《河南科技》
2016年第19期63-66,共4页
Henan Science and Technology
关键词
天地图
地理国情普查
数据处理
Tianditu
geographical national census
data processing
