C. Class:: Navigation
This class defines how to show video clips and additional AR
content
(1) Who: Instance identification to make the navigation service
possible
• ID (String): Identification of the navigation instance
• User. ID (String): ID of the user instance called in the
navigation class
• Video Clip. ID (String): ID of the video clip instance called
in the navigation class
(2) When: Time information of the tour
• Remaining Time (Time): The remaining time for a tour if a
tourist sets the ‘tour schedule'
• Expected Time (Time): The expected time when a tourist
stays in one PoI
• Total Expected Time (Time): The total expected time when
a tourist stays in the remaining PoIs
• Total Tour Time (Time): The total expected tour time on the
site
(3) What: Graphical data of navigation
• Point Guide (Binary File): The augmented arrows, circles,
and markers that guide tourists to a particular PoI
• Pose Guide (Binary File): The augmented contour that
guides tourists to follow the poses of actors in the video clip
(4) How: Data about how to coordinate the graphical data for
navigation on a personal device display
• Watching Navigation ((Float, Float)): Coordinate of a point
guide to the watching point on a personal device display
• Acting Navigation ((Float, Float)): Coordinate of a point
guide to the acting point on a personal device display
• Pose Navigation ((Float, Float)): Coordinate of a pose guide
to the acting point on a personal device display