Feature attribute information converting method in CARIS HPD

CARIS HPD is the most advanced system of navigation marker data maintenance and navigation production. Since 2008, China Maritime Survey Department has brought CARIS HPD hydrographic product database system. So far, the complicated data storage way and table relationship have bothered the progress of navigation marker data conversion and sharing. This paper analyzes the storage ways of attribute common and expected value, beginning with rigorous data organization structure in HPD Source Database. It provides the theory basis for data conversion and sharing.