| 摘要 |
PROBLEM TO BE SOLVED: To provide a three-dimensional image plotting method and a device therefor and a recording medium relying on inverse perspective drawing for general object plotting including reflection, refraction and transmission and for various inverse perspective plotting, and to provide the three-dimensional image plotting method and the device therefor and the recording medium for forming various images in which perspective and view points are freely set including the inverse perspective. SOLUTION: A line-of-sight direction to project an object, a screen to project the object and a divergence point are set. In the case that the divergence point is set on the far side of the screen seen from the line-of-sight direction, the divergence point is defined as an inverse view point viewable from many view points and the object is projected and plotted to a pixel with a straight line connecting the pixel and the divergence point as the line of sight for each pixel of the screen. In the case that the divergence point is set on the front side of the screen, the divergence point is defined as the view point and the object is projected and plotted on the screen by the perspective. Further, in the case that the divergence point is set practically at the infinitely front part or infinitely rear part of the screen seen from the line-of-sight direction, the object is projected and plotted on the screen by a parallel projection method. |
