Path selection assistance device, path selection assistance method, and computer program

A path selection assistance method that can be executed with a path selection assistance device for displaying information indicating paths that a user can select,

• the path selection assistance device comprising:
• a step of acquiring position information on a current position of a user and on a current position of at least one target,
• a step of acquiring position information of a block which is a closed region surrounded by paths that the user can travel,
• a step of extracting a block existing between the current position of the user and the current position of the at least one target, and
• a step of updating the display mode of the block thus extracted to display it.

A computer memory product recording a computer program that can be executed by a path selection assistance device for displaying information indicating paths that a user can select,

• the path selection assistance device being allowed to function as:
• a position information acquisition means for acquiring position information on a current position of a user and on a current position of at least one target,
• a block information acquisition means for acquiring position information of a block which is a closed region surrounded by paths that the user can travel,
• a block extraction means for extracting a block existing between the current position of the user and the current position of the at least one target, and
• a block display update means for updating the display mode of the block thus extracted to display it.