The Design And Realization Of Electronic Map System Based On MapObjects

The electron map is an application that geographic information system used in city administration and information service , it has had many function of geographic information system , each other dyadic realization space data browsing , inquiring about , search that and so on has handled by the electron map .It being able to be speedy gains large amount of space information .The electron map is that figure times shows area status shows way even economy builds the accomplishment importance.System adopt the GIS module to develop a pattern , makes use of VB.NET language , takes Shen Yang City as example, the exploitation realizing the electron map designs that, have set forth electron map designing a little theory , method in process and designing key technology in process, for example the data organization comes true with data physical design , data handling , functional various inquiry design and so on.The main body of a book have got up with system thought , COM technology and consummate union of GIS , have made actual application and to here , have realized various electron map function of ShenYang City, such as: the map enlarging , reducing a pleasure trip and so on; Place name fleetness display , inquiry, fix position; The public transit route inquires , the public transit station inquires , public exchange takes advantage of that inquiry; the scenic spot is inquired about; calculate Distance ,and area and so on.