Image portrayal

摘要

A method and apparatus which can perform efficiently the problem] [image drawing. is defined as [SOLUTION] map origin present in the 3-dimensional environment, the viewing direction vector passes through the map origin, is a one-to-one correspondence between the direction of the vector through the map origin map and position in map A method of creating a certain, a two-dimensional map of a three-dimensional environment, through the map origin, present in the plane including both the environmental position and view direction vector, the angle formed with respect to the viewing direction vector observation direction vector folding corresponding to the environment position, the steps to be associated with the environmental position of the three-dimensional environment, the vector folding is a function of the predetermined angle between the vector between the environment position and map the origin and the vector, the environment position and a step of deriving from the attribute of the environment the corresponding position, a step of association with the map position corresponding to the direction of, the attributes of the map location. [Selection] Figure 16