DYNAMIC LAYOUT ADJUSTMENT AND NAVIGATION FOR ENTERPRISE GIS BASED ON OBJECT MARK RECOGNITION

查看全文 作　　者：[1]LAIWei;YUDong-[1]gang;ZHONGYong-[2]liang 机构地区：[1]SchoodofInformationTechnology,SwinburneUniversityofTechnology,Hawthorn,VIC3122,Australia;[2]HypersoftInternationalPtyLtd,NSE2121,Australia 出　　处：《Chinese Geographical Science》索引2003年第13卷第1期,共6页 基　　金：an Australian Research Council SPIRT grant(C00107573). 摘　　要：In this paper a new method is developed to make a dynamic layout adjustemnt and navigation for enter-prise Geographic Information System(GIS) based on object mark recognition.The extraction of object mark images is based on some morphological structural patterns,which are described by morphological structural points,contour prolpety,and other geometrical data in a binary image of enterprise geographic information map.Some pre-processing methods,contour smooth following,linearization and extraction patterns of structural points,are introduced If any special object is selected to make a decision is a GIS map ,the all information around it will be obtained.That is ,we need to investigate similar object enterprises around selected region to analyse whether it is necessary for establishing the object enterprise at that place.To further navigate GIS map,we need to move from one region to another,Each time a region is formed and displayed based on the user's focus,If a focus point of a map is selected,in terms of extracted object mark image,a dynamic layout and navigation diagram is constructed.When the user changes the focus (I.e.click a node in the navigation mode),a new sub-diagram is formed by dropping old nodes and adding new nodes,The prototype system provides effective interfaces that support GIS image navigation,detailed local image/map viewing,and enterprise information browsing. 关 键 词：企业 地理信息系统 GIS 形态结构 几何数据 动态规划 物体标记图像