| 摘要 |
PURPOSE:To provide a method to easily set the three-dimensional model of a building to generate the image of an aspect of the area where the buildings stand close together, such as a city area or a factory area, by a three- dimensional computer graphic. CONSTITUTION:A first photograph which photographs the building 3 from an upper side and a second photograph which photographs the side plane of the building 3 are prepared. Firstly, the position data of the building 3 and the external size of roof data are inputted by using the first photograph, and height data decided in advance is attached on them, thereby, a temporal three- dimensional model is set. Secondly, a CG image 11 is generated and displayed by the same camera parameter as that of the second photograph after applying rendering to the temporal three-dimensional model. The height data is decided by correcting the height data of the temporal three-dimensional model so as to conform the CG image to a horizontal photograph. |
