Loading patent…
AssigneeGeo Technical Laboratory Co., Ltd.
InventorsMasatoshi ARAMAKI, Kiyonari KISHIKAWA, Eiji TESHIMA, Masashi UCHINOUMI, Masaru NAKAGAMI, Tatsuya AZAKAMI, Tatsurou YONEKURA
Estimating the term…
In displaying a 3D map, a feature image is generated by perspective projection of the feature based on a predetermined position of the point of sight and a predetermined direction of the line of sight. A plate polygon on which characters are pasted is arranged in a virtual 3D space in a direction along a road and tilted from the ground surface, and parallel projection is applied to the plate polygon so as to generate a character image. A tilt angle between the plate polygon and the ground surface is set based on a display direction of the road and a display position of the character. Thus, by generating the feature image by perspective projection while generating the character image by parallel projection, negative effects such as crushing of distant characters can be avoided, whereby the characters can be displayed in three-dimensional shape without reducing visibility thereof.
A three-dimensional (3D) map display system for displaying a 3D map including a feature and a character string, the system comprising:
A three-dimensional (3D) map display method of displaying a 3D map including a feature and a character string, executed by a computer, comprising the steps of:
A non-transitory computer-readable media with an executable computer program for displaying a three-dimensional (3D) map including a feature and a character string, the computer program causing a computer to execute the steps of:
Dependencies are inferred from the claim text.