| At the present time, application GlS has been developing deeply into every walkof life in our society. With the high development of the city denseness, there existSmuch hidden fire trouble. So it is insistent to establish an aPplied efficient systemwhich can query kinds of concerned information agilely. provide quick supportmethods and assistant decision, thus reaching the smallest lost by using limitedmanpower and material resources. That is l l9 City Fire GIS.According to the conception and theory of the OO(Object Oriented)' thecharacteristic of MaPinfo. and with the combination of the ODBC(Open DatabaseConnectivity), the paper has designed the spatial data structure of the City Fire GlS,which is different from the traditional spatial data strUcture. The system has completedthe display. edit. query' search of the vector maP and the orientaion of spatial object.And the ana1ysis of fire protection oPtimal path has been worked out successfully. Atthe same time some common applied models of City Fire GIS have been set up, suchas the alarm spatia1 position mode1. the fire resources manoeuvre model. the fireresources quick support model. Based on the analyzing the feasibility andpredominance of the combination of the GIS and object position system, the concreterealized methods for serial interface communication have been put forward. |
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