| 摘要 |
<p>PROBLEM TO BE SOLVED: To naturally display information existing at a position hidden behind another display object on a display screen without giving any feeting of incongruity. SOLUTION: In this plotting method, map structures to be displayed which are not designated among structures to be navigated by a CPU 21 are first displayed by using a Z buffer plotting part 23 using a method for removing a three-dimensional graphics hidden face, and then the location of a Z buffer 24 is checked at the time of plotting the structure to be navigated, and when any other structure exists in front of the structures to be navigated, the structure is semi-transparently plotted, and otherwise the structure is plotted as it is, and the structure designated by the CPU 21 is displayed openly.</p> |
