Research On The Application Of ArcGIS Engine Components To Development Of Decision Support System For Soil And Water Conservation

The introduction of GIS technology has already made the management of water and soil conservation information enter the information and digitization era.The GIS also has become the comprehensive strong tool for the management of water and soil conservation information and integration of water and soil conservation resources.The paper introduces the methods of the second development based on GIS and specifies the property,method and application of the components.This paper also introduces the developable way based on ArcGIS Engine package in detail.The total idea of design is to establish the decision support system for soil and water conservation by using the Visual Studio.NET programming language and the components of data processing,data editing and spatial analyzing based on ArcGIS Engine.The system is mainly made up of GIS function module and soil and water conservation information module,and the fuction of GIS module mainly includes browsing the view,inquiring vector-graph layer,managing the attribute of layers,operating graphics,basal spatial analyzing and exporting various thematic maps etc.The function of GIS adopts the interface technology of ArcGIS Engine.As to some simple GIS functions,It is realized directly by using the tool button that ArcGIS Engine gives;As to complicated GIS function,such as soil and water conservation information module,it is realized by using the function and control offered by ArcGIS Engine,and methods of C# programming is adopted.This geographical information system is developed by orientated-object language,and has made full use of such packages as basal figure operating,data editing,graphical displaying,spatial analyzing that ArcGIS Engine gives,thus,it improves the efficiency of employing the geographical information system,and the system has good user interface and complete fuction.The characteristic of information system based on ArcGIS Engine is that this system can independently run apart from ArcGIS software system under the environment of WINDOWS,Moreover,it is simple and convenient to operate.Finally,This paper confirms feasibility,reliability,and robusticity of the decision support system for soil and water conservation taking ChaoYang data for an example.