Implementation of Land Merging Function Based on Big Data of ArcGIS Engine and C#.net

Based on the experience in the combination of theory and practice of ArcGIS Engine in the development of GIS technology in recent years, this paper combines with the map elements of important data sources of GIS basic frame to make the plot smaller than or equal to the given value merge into the largest surrounding land by C# language and COM components technology. And this research achievement plays an important and practical role in the land using and cadastre rectification.