|
3S technology in land, resources , environment , industry gradually attention in space exploration , database construction and decision support in-depth development , but in the land use / cover change (Land Use / Cover Change) there are still insufficient monitoring . : Database query long time , low efficiency , often using artificial data monitoring accuracy often amounted to less than a point of order requirements . Therefore, the article refers to the neighborhood merging method algorithm thinking , comprehensive application of 3S technology , the Visual Basic 6.0 integrated development platform , ARCGIS8.3 secondary development toolkit the ArcObject component and database development component DATA ENVIRONMENT DBGRID combined , the development of remote sensing monitoring applications . Paper work done as follows : 1 , analysis of land use management tools, comprehensive application of 3S technology to establish a monitoring system to deal with the importance of remote sensing images demonstrated . 2, focus on remote sensing monitoring system model structure , module function and principle , analysis of the database structure and data relationships . 3 to study the thinking of neighborhood Merger Act algorithm , design algorithm processes on the core functionality of code to write . 4 , in the application of remote sensing monitoring system , the design of a specific route , the use of mathematical methods of field data error checking , and final study area land use planning , the illegal use of land and expropriation of land construction of monitoring . The results prove that the consolidation method using neighborhood the algorithm thought polygons compared to remote sensing monitoring system image query process is simple , and high access efficiency , monitoring the accuracy of the national regulatory requirements .
|