SuperMap-Based Spatial Retrieval And Thematic Mapping Of Mineral Resources Geographic Information System Of Alxa

Alxa, covers an area of ~270,000 km2, is located in the west of Inner Mongolia and abundant in mineral resources. The Land and Resources Bureau of Alxa saves and administers a large numbers of electronic maps and documents. For managing mineral resources, improving work efficiency and building digital land information, the Mineral Resources Geographic Information System of Alxa is absolutely necessary.Embedding SuperMap Objects 5 in Visual Basic 6 developing environment, and constructing system framework based on component GIS application model, it completes thematic mapping module and interactive query between features and property data of mineral resources. Under this system, office automation business can be carried out, and also, it has positive role in promoting the information construction for Land and Resources Bureau of Alxa.Starting with technical design and according to the system analysis method, the thesis introduces theory basic, design idea and detail implement from the top down analysis method and system function, as well as some further discussion with several difficult problems.The Activebar control has been introduced and utilized to construct the user interface. Additionally, several important controls of SuperMap Objects such as SuperMap, SuperWorkspace, SuperWkspManager and SuperLegend are also expatiated and used within system programming.The SuperMap-based spatial retrieval and thematic mapping geographic information system of Alxa will make a great improvement to the effective management and sustainable use of mineral resources.