Hitachi, Ltd.

Yoshimi Oota

Yoshiaki Usami

Kenichi Anjyo

Toshiaki Yoshinaga

Shigeru Ohcoshi

A design and production supporting system for component arrangement and routing comprises a three-dimensional (3-D) component mapping means based on two-dimensional logical connection information of plant components and 3-D arrangement space information. To the 3-D component mapping means, an interactive mapping means and an automatic mapping means are provided. The interactive mapping means has a means for displaying the components arranged on the assigned plane of the arrangement space in the 3-D space keeping connection relationship among the components and a means for interactively moving these components in the arrangement space with keeping connection relationship among the components by using the dragging method. The automatic mapping means has a means for distinguishing the arranged spaces from the non-arranged spaces and arranging the components on the non-arranged spaces, and a means for searching the shortest route of pipes, etc., for the arranged components.

Design and production supporting system for component arrangement and

A display apparatus and a modelling method for computer graphics includes a first memory for storing a first three-dimensional model, a detailed model, of a body represented by at least one of desired first number of dimensions, a desired first number of parameters and desired first parametric quantities, an arithmetic unit for arithmetically determining a second three-dimensional model, a simplified model, by varying at least one of the first number of dimensions, the first number of parameters and the first parametric quantities to at least one of a second number of dimensions, a second number of parameters and second parametric quantities in accordance with an algorithm for thereby creating automatically a simplified model for a body of less importance. A second memory stores the simplified model. A selector selects the first three-dimensional model or the second three-dimensional model by reference to a preset index for evaluation. A display unit displays the first three-dimensional model or the second three-dimensional model as selected.

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Hitachi, Japan

Yoshimi Oota