Dynamic operation for spatio-temporal data based on base state with amendments model
Zhou Hui · Jisuanji yingyong yanjiu · 2010
This paper defined the dynamic operations for the base state with amendments model at first.The operand of the dynamic operations included current objects and out-dated objects.Designed two graphic user interfaces,i.e.,base state interface and snapshot interface,to give the dynamic operation tools for the users.Then implemented the dynamic operations usingVC + + in evillage update system,and defined a set of consistency rules to maintain the data intergrity during the dynamic operations.At last,used real data to verify the correctness of these dynamic operations.Research shows that a set of improved dynamic operation provides convenient and friendly data manipulation tools for users,not only meets the demands of addition,deletion and revision for TGIS's data,but also maintains data consistency.