Hitachi, Ltd.

Ichiro Harashima

Koji Shiroyama

Keisuke Nakashima

Hiroshi Arai

Norihiro Nakajima

Masatake Sato

Takeo Yamada

Shigeru Arai

Tomotoshi Ishida

Toshiyuki Miyake

Yuichi Koizumi

Ichiro Kataoka

Yoshiaki Shinotsuka

Shinji Tokumasu

Motomi Odamura

Yuhiro Yoshida

A logical designing part includes a logical connectivity data storage that stores logical connectivity data, indicating a logical connectivity between plant equipments, including first end point connection data. A geometry data designing part includes a geometry data storage that stores geometry data that is graphical shape data in a three-dimensional space and includes second end point data. A data linking part includes: an automatic correspondence table generating part that compares first end point connection data with second end point data and generates a logical connection and geometry data table including correspondence data that links the geometry connection data and the geometry data of which first and second end point connection data are matched each other. A correspondence storage stores the logical connection and geometry data table. An editing part edits the logical connection and geometry data table on the basis of a user command.

Layout-design support system and layout-design support program

An arrangement possible/impossible determination part of a piping order edit device: refers a pipe constituting a pipe list as a pipe subjected to determination; searches a main-branched pipe relationship database for a given pipe using identification information on the pipe subjected to determination as a search key; acquires a main pipe and a branched pipe corresponding to the searched given pipe; and, if there is a branched pipe positioned before the pipe subjected to determination in the pipe list or if there is a main pipe positioned after the pipe subjected to determination in the pipe list, the 'arrangement possible/impossible' of the pipe subjected to determination is set at 'impossible'.

CAD pipe arrangement and pipe relationship database validation

Disclosed is a design check knowledge construction system that adequately improves the quality of check knowledge and fully enhances the quality of a product, which is a final target to be checked. The check target knowledge definition section generates check target knowledge definition data, which is obtained by defining check target knowledge (check knowledge) that serves as a target field to be checked, in accordance with the relationship between a word group and words in the word group and with reference to technological ontology concerning technological basic intelligence input from a user input/output section. The word association section extracts a word group from a document data group associated with the word group in the check target knowledge definition data and associates words in the word group with each other in accordance with the document data group including a plurality of document data based on knowledge content.

Method and system for design check knowledge construction

A retrieval method targeted for partial characteristic shapes existing in a polyhedral shape is provided. The method converts inputted shape model data into triangular mesh data, extracts and classifies triangular mesh data groups that form the partial characteristic shapes. The method calculates the characteristic amount of the triangular mesh data groups that represent the classified partial characteristic shapes and then calculates the difference between the characteristic amount of the triangular mesh data groups and the characteristic amount of a query shape to display a partial characteristic shape that has a small difference in the characteristic amount or the query shape. Furthermore, the method displays a list of candidates for similar shapes based on the difference value of the characteristic amount.

Mesh-based shape retrieval system

A design rule management method implemented in a rule verification apparatus for checking a violation against a design rule which specifies a part shape when there is any change in parameters in a system, the rule verification apparatus including: a processing unit for processing information; an input unit for inputting information; and a storage unit for storing a first design rule, a second design rule and relationship strength therebetween in association with one another, the method allowing the processing unit to perform steps including: acquiring the changed parameter via the input unit; and in a rule verification to determine whether or not there is any violation in the design rules that use the changed parameter, acquiring from the storage unit all the design rules having the relationship strength of a predetermined value, and performing the rule verification on all the acquired design rules.

Design rule management method, design rule management program, rule management apparatus, and rule verification apparatus

A procedure generation apparatus has, in a storage unit thereof, a database in which a name of input information and a name of output information name are stored, associated with a name of a work. The procedure generation apparatus retrieves one or more candidate work names associated with an input information name from the database, displays the retrieved one or more work names, receives a selection of a work name from among the displayed one or more work names, retrieves one or more candidate output information names associated with the selected work name from the database, displays the retrieved one or more output information names, receives a selection of an output information name from among the displayed output information names, retrieves one or more candidate input information names each having a similar name to the selected output information name, from the database, and displays the retrieved input information name.

Procedure generation apparatus and method

A design change range determining apparatus assigns a link between the one and another elements to generate link information table regarding the assigned link, and when the element is specified through an input unit, retrieves link information table to obtain the parent node associated with the specified element, obtains a child node associated with the parent node, and further obtains a child node which is a parent node of the obtain child node; and display the obtained parent nodes and child nodes on a display.

Method of determining range of change in design, design change range determining apparatus, and design change range determining system

Disclosed is a rule management apparatus which acquires a design rule for regulating a part shape from systems such as a CAD system, converts the acquired deign rule into data having a hierarchical node format, calculates relationship strength which indicates strength of a relationship between the design rule converted into data having a hierarchical node format and another node, sets to the relationship strength between design rules which are substantially the same but described in different systems to be a maximum value, and stores in an integrating rule DBthe relationship strength and the design rules in association with one another.

Design rule management method, design rule management program, rule management apparatus and rule verification apparatus

A method and device for pattern processing whereby accurate and effective processing can be carried out as a user desires. A pattern processing device of this invention comprises an information input/output device, an information processing device, and a data storage device; wherein the information processing device comprises pattern processing means, significance describing means, characteristic information input means, characteristic information extraction means, characteristic information describing means, and pattern processing means making reference to characteristic information. Intentions of a user or characteristics of pattern elements or sets of pattern elements are described and added to the pattern data so that this characteristic information can be referred to when pattern data processing is carried out. Thus, it is possible to make accurate representation of pattern data in a computer, and it is also possible to generate or convert patterns as the user desires.

Method and apparatus for pattern data processing

In order to display a three-dimensional curve on a two-dimensional display device, a stereographic shape or a tube is generated on the basis of the feature quantity of the curve, and it is displayed on the two-dimensional display screen of the display device instead of the curve or together with the curve. The diameter of the tube is proportional to the radii of curvature of the curve at the individual points of the curve. Lines or stripes corresponding to the torsion of the curve can also be displayed on the side surface of the tube. With this construction, the three-dimensional curve can be grasped stereographically by the use of the conventional two-dimensional display device without preparing any special device for stereoscopic vision. Thus, the capability of expressing the shape of a curved surface which is generated on the basis of such a three-dimensional curve is enhanced in a curve input operation which is the initial stage of a shape design in mechanical CAD or CG.

Method of and system for displaying three-dimensional curve on

In order to generate a display of a surface, an equation or equations are generated corresponding to all or parts of the surface. The equation or equations represent the surface as a physical membrane. Boundary conditions of the surface can thus be specified, and the equation solved using the boundary conditions as outer constraints to generate a display of the surface. A set of points within the boundary of the surface may be specified, which then define inner constraints for the solution of the equation. Where parts of the surface join at a point or line, a further equation can be generated, which further equation represents the area around the join as a physical membrane. Solution of that equation, preserving the boundary of the area around the join, provides a smooth transition between the parts of the surface.

Method and apparatus for generating a surface by simulating a physical

The present invention is to output the geometric form characteristic, such as the principal curvature of a geometric model constituted in a computer to meet an image of a user to easily modify the form. In order to achieve the foregoing object, there is suggested an apparatus for displaying a geometric form characteristic that includes a form display device for displaying, on a display device such as a CRT, a geometric model input in the computer, a position instruction device for indicating, on the display screen, an arbitrary point on the displayed form by using a pointing device such as a mouse, a geometric form characteristic calculating device for calculating the geometric form characteristic at the arbitrarily indicated point, and a geometric form characteristic display device for displaying the calculated geometric form characteristic in the form of a graph. According to the present invention, a form that meets the image of a user, such as a concave, convex and the plane portion can be displayed as the user directly touches the form using a mouse.

Method and apparatus for displaying altitude of form characteristics

A scalar quantity distribution displaying method wherein shape information of an object to be displayed having a certain shape, and magnitudes of scalar quantities at sampling points lying on the object to be displayed are used for displaying scalar quantity magnitude distribution on the object to be displayed in terms of contour lines and/or a color map; the improvement therein comprising the fact that the distribution of the magnitudes of the scalar quantities is displayed by a graph simultaneously with the display presented in terms of the contour lines and/or the color map. Since the scalar quantity distribution is concurrently displayed, any singular value, etc. of the scalar quantity can be readily acknowledged.

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Hitachiota, Japan

Ichiro Harashima