Dynamic Layout Adjustment and Navigation for Enterprise GIS Based on Object Mark Recognition

摘要

A new algorithm is developed to extract mark images in GIS map based on some morphological structural points. We have developed dynamic methods for the communications among sub-graphs, GIS image views and enterprise information for a specific application. A site and its surrounding region size can be selected and changed in terms of enterprise strategy. A dynamic layout and navigation for Enterprise Geographic Information System is given based on the navigation graph which consists of mark images and three underlying views (a graph navigation view, an image layout view, and an enterprise information view). The method can be used for any special object decision which is related to GIS system if there are mark images in GIS map.