OVERLAY ELECTRONIC NAVIGATIONAL CHART DISPLAY METHOD AND OVERLAY ELECTRONIC NAVIGATIONAL CHART DISPLAY SYSTEM

摘要

PURPOSE: Overlay electronic navigation chart displaying system and method are provided to display more than two electronic navigation charts having different properties with other cover domains on an overlay. CONSTITUTION: An overlay electronic navigation chart displaying method comprises the following steps: extracting electronic navigation charts having information of a display area using a system(S2); generating plural overlay electronic navigation charts by controlling the transparency when an overlap area is located in the electronic navigation charts(S4, S5); and selectively displaying one of the overlay electronic navigation charts(S6).