Matsushita Electric Industrial Co., Ltd.

Yoichi Nagata

Sachio Nagamitsu

Hisashi Kodama

Yoshihiro Hattori

Tsuneko Imagawa

Mayumi Sakai

To provide a building renovation supporting apparatus capable of drafting and presenting efficient renovation plan, the proposing means 51 creates the renovation blueprints composed of third dimensional path diagrams of particular view-point, line of sight direction and the view angle corresponding to each types of condition of the symbol diagram to be inputted from the inputting means 10 with many view-point information, visual lien direction information and the view angle information necessary for drafting the third dimensional path diagrams being corresponding to various types of condition of one type of symbol diagrams such as position, direction, angle or the like respectively.

Computer aided building renovation supporting systems

The zenithal angle of a spherical surface is divided at regular intervals, the horizontal angle thereof is also divided at regular intervals in correspondence with each of the zenithal angles, and in addition, the intensity of each energy line emitted from the center of the bottom surface of the spherical surface at the divided zenithal and horizontal angles corresponds to each zenithal angle. Thus, the energy lines can be isotropically emitted from the center of the bottom surface the spherical surface. The emitted energy lines are traced from the center to each object surface and the intensity of each energy line which has reached each object surface are added to each other. Then, the intensity obtained by the addition is divided by the intensity of entire energy lines emitted from the center. Thus, the geometrical view factor of each object surface can be found quickly and accurately.

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Neyagawa, Japan

Yoichi Nagata