JP2002324253A - Information processing apparatus and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize an information processing apparatus with which attribute information is utilized effectively by easily viewing both of a 3D model and attribute information in spite of adding the attribute information of a dimension, a dimensional tolerance, etc., to the 3D model to be prepared by using a CAD. SOLUTION: In the CAD, a view direction (view) is set to the prepared 3D model 1, and the attribute information is inputted so as to face to the set view from its front side. The CAD has a display control means for varying the displaying method of the non-related shape when the set view expresses a cross sectional drawing.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an information processing apparatus and method, and more particularly to an information processing apparatus and method using a 3D model (3D shape) created by using 3D-CAD.

[0002]

2. Description of the Related Art Conventionally, a CAD apparatus (particularly, a 3D-CAD
), A product having a three-dimensional shape (hereinafter, simply referred to as a component) such as a product or a component constituting the product has been designed.

[0003] Further, based on this design, a mold for producing parts has been produced.

In using design information created by a CAD device, attribute information such as dimensions, dimensional tolerances, geometrical tolerances, notes, and symbols has been input to a 3D model (3D shape).

In order to input attribute information to a 3D model, a face, a ridge line, a center line, a vertex or the like of the 3D model is designated and selected. For example, attribute information is input to a 3D model as shown in FIG. 27 (a front view, a plan view, and a side view of the 3D model are shown in FIG. 28) as shown in FIG. 29, for example. Here, the attribute information refers to dimensions such as distance (length, width, thickness, etc.), angles, hole diameters, radii, and chamfers, and dimensional tolerances associated with the dimensions. Geometric and dimensional tolerances added in 注 Notes that are information to be conveyed and instructed when processing and manufacturing parts, units, and products.

[0006] There are roughly the following two methods for attaching attribute information to a 3D model. (1) When dimensions, dimensional tolerances, geometrical tolerances, notes, and symbols are given Dimension lines and dimension auxiliary lines are required to enter dimensions and dimensional tolerances Leader lines are required to enter geometrical tolerances, notes, and symbols (2) When dimension tolerances, geometric tolerances, notes, and symbols are added without dimensions. Dimension lines and dimension auxiliary lines are not required. Leader lines are required to enter dimension tolerances, geometric tolerances, notes, and symbols. The mold was manufactured using the model. In this case, whether the manufactured mold and the molded product molded by the mold are completed as designed,
Needed to be inspected.

[0007]

However, as in the above-mentioned prior art, 3
The method of attaching attribute information to the D model has the following problems.

In the case of the above (1), dimensions and dimensional tolerances, and dimension lines and dimension auxiliary lines for writing them are complicated, making it difficult to see the shape and attribute information of the 3D model.

As shown in FIG. 27, if the shape is relatively simple and the number of pieces of attribute information is about several tens, it can be managed. However, if the shape is complicated or large, several hundreds are required. Since thousands to thousands of pieces of attribute information are added to the 3D model, “the attribute information overlaps”, “the attribute information overlaps with the dimension line, dimension auxiliary line, or leader line”,
It is very difficult to read the attribute information because "the position of the dimension line, the dimension auxiliary line, or the extension line is difficult to understand".

In the above case, it is difficult for the operator who inputs the attribute information to see the input information, and the input content cannot be confirmed, that is, the input of the attribute information itself becomes difficult.

Further, it becomes extremely difficult to read related attribute information. In addition, the space occupied by the attribute information becomes larger than that of the 3D model, and it becomes impossible to simultaneously view the shape of the 3D model and the attribute information on a display screen of a limited size.

Furthermore, attribute information to be indicated in a so-called cross-sectional view (for example, the inner surface shape of a wall having a structure on both sides in FIG. 27) is difficult to understand because the indicated position of the 3D model is not visible.

The fine and complicated partial shape of the 3D model is enlarged so as to be in a display state in which the shape can be sufficiently understood, and the dimensions and the like are set to appropriate sizes in this display state. However, the dimensions and the like set in this way have a small display when the display magnification is reduced and the whole is displayed, and there is a problem that it is necessary to find these dimensions carefully when viewing these dimensions. . In the worst case, there is a problem that erroneous processing or the like is performed without noticing the attached dimensions and the like. Furthermore, when viewing a fine and complicated partial shape and dimensions of the 3D model, there is a problem that the dimensions and the like attached to the entire shape are displayed extremely large, making it difficult to see.

In the case of the above (2), the dimension line and the dimension auxiliary line are unnecessary, but since the lead line is used, the lead line becomes complicated similarly to the above (1), and the shape of the 3D model and Attribute information becomes difficult to see. Further, in the case of a complicated shape or a large shape, since hundreds to thousands of attribute information are added to the 3D model as needed, it becomes extremely difficult to read the attribute information.

[0015] In addition, it is necessary to measure dimensions and the like when inspecting a mold manufactured and a completed mold and a molded product formed by the mold. Therefore, in order to read the dimension value, a measurement operation using a measurement function of the 3D model shape is required.

In this case, it is necessary to designate and select a reference position of a dimension for a position such as a surface or a ridge line to be read. When reading the dimensions of a plurality of positions, a large number of operations and a long operation time are required. It is something that takes.
In addition, the possibility of misreading due to an operation error is inevitable. Further, when reading the dimensions of all parts, an extremely large amount of labor is required.

In the first place, the 3D model and the attribute information are
Information for processing and manufacturing parts, units, and products. From input operators = designers to viewing operators = technicians in processing, manufacturing, inspection, etc., information is easy to understand, efficiently, and without mistakes. Must be communicated. In the above-mentioned prior art, these are not satisfied at all, and it is not a form which can be used industrially effectively.

Therefore, an object of the present invention is to add an attribute for improving operability to data created by a CAD device or the like.

Another object of the present invention is to efficiently use the added attributes.

It is another object of the present invention to efficiently create a part utilizing data created by a CAD device or the like.

It is another object of the present invention to efficiently perform an inspection process using data created by a CAD device or the like.

[0022]

An information processing apparatus according to the present invention inputs a line-of-sight setting means for defining an arbitrary line-of-sight direction and a viewpoint with respect to a 3D model, and inputs attribute information corresponding to the line-of-sight direction set by the setting means. Attribute input means, storage means for storing the gaze direction and the attribute information in association with each other, instructing means for instructing the set gaze direction, and attribute information associated with the gaze direction instructed by the instructing means And display control means for switching a display method in an arbitrary range.

Further, the information processing apparatus of the present invention has a line-of-sight setting means for defining an arbitrary line-of-sight direction and viewpoint for the 3D model, and an attribute input for inputting attribute information corresponding to the line-of-sight direction set by the setting means. Means, storage means for storing the line of sight direction and the attribute information in association with each other,
Instructing means for instructing the set line-of-sight direction, display means for displaying attribute information associated with the line-of-sight direction instructed by the instructing means, and a position set by the line-of-sight setting means, When the position is a position representing a cross-section, there is provided a cross-section position display means for specifying the position.

Further, the information processing apparatus of the present invention has a line-of-sight setting means for defining an arbitrary line-of-sight direction and a viewpoint with respect to the 3D model, and an attribute input for inputting attribute information corresponding to the line-of-sight direction set by the setting means. Means, storage means for storing the line of sight direction and the attribute information in association with each other,
Instructing means for instructing the set line-of-sight direction, display means for displaying attribute information associated with the line-of-sight direction instructed by the instruction means, and a position set by the line-of-sight setting means, When it is located at a position representing a cross-section, it has a line-of-sight display means for specifying the line-of-sight direction.

Further, the information processing method of the present invention includes a three-dimensional data generating step of generating data of an article having a three-dimensional shape, a line-of-sight setting step of defining an arbitrary line-of-sight direction and viewpoint for the 3D model, An attribute input step of inputting attribute information so as to correspond to the line-of-sight direction set in the step, a storage step of storing the line-of-sight direction and the attribute information in association with each other, and an instruction step of instructing the set line-of-sight direction, A display step of displaying attribute information associated with the line-of-sight direction instructed in the instruction step;

The information processing method according to the present invention further comprises a line-of-sight setting step for defining an arbitrary line-of-sight direction and a viewpoint for the 3D model, and an attribute input for inputting attribute information corresponding to the line-of-sight direction set in the setting step. And a storage step of storing the gaze direction and the attribute information in association with each other,
An instruction step of instructing the set line-of-sight direction, a display step of displaying attribute information associated with the line-of-sight direction specified in the instruction step, and a position set in the line-of-sight setting step of the 3D model. When the position is a position indicating a cross section, the method includes a cross-section position display step of specifying the position.

In the information processing method according to the present invention, a line-of-sight setting step for defining an arbitrary line-of-sight direction and a viewpoint for the 3D model, and an attribute input for inputting attribute information corresponding to the line-of-sight direction set in the setting step And a storage step of storing the gaze direction and the attribute information in association with each other,
An instruction step of instructing the set line-of-sight direction, a display step of displaying attribute information associated with the line-of-sight direction instructed in the instruction step, and a position set in the line-of-sight setting step of the 3D model. When it is located at a position representing a cross section, there is provided a line-of-sight display step for specifying the line-of-sight direction.

[0028]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the drawings.

(Overall Flow of Mold Die Production) FIG. 1
FIG. 1 is a diagram showing an overall flow when the present invention is applied to mold part die production.

In the figure, in step S101, a product is designed and a design drawing of each part is created. The component design drawing includes information necessary for component production, constraint information, and the like. Parts design drawings are 2D-CAD or 3
A drawing (3D drawing) created by D-CAD and created by 3D-CAD includes attribute information such as shape and dimensional tolerance. The dimensional tolerance can be associated with the shape (surface, ridgeline, point), and the dimensional tolerance is used for an instruction for inspecting a molded product, an instruction for mold accuracy, and the like.

In step S102, a study of manufacturability such as assembling and molding of a product is performed, and a process drawing for each part is created. The part process chart includes a detailed inspection instruction in addition to information necessary for part production. Parts process diagram is 2D
-Created by CAD or 3D-CAD.

Here, examples of detailed inspection instructions include numbering of measurement items (dimensions or dimensional tolerances), and instructions of measurement points and measurement methods for measurement items.

The detailed inspection instruction information can be associated with the dimensional tolerance on the CAD.

In step S103, in step S1
Process drawing of parts created in 02 (process drawing, mold specification)
The mold is designed based on the above, and the mold drawing is created. The mold drawing includes information and constraints necessary for mold production. The mold drawing is created by 2D-CAD or 3D-CAD,
A mold drawing (3D drawing) created by 3D-CAD includes attribute information such as shape and dimensional tolerance.

In step S104, step S1
The manufacturing process of the mold is examined based on the mold drawing created in 03, and a mold process drawing is created. The die processing step includes NC processing and general-purpose processing. For the step of performing NC processing (automatic processing by numerical control), an instruction to create an NC program is issued. In the general-purpose processing (manual processing) step, an instruction for performing general-purpose processing is issued.

In step S105, an NC program is created based on the mold drawing.

In step S106, a mold part is manufactured using a machine tool or the like.

In step S107, the manufactured mold parts are inspected based on the information created in step S103.

In step S108, the mold parts are assembled and molded.

In step S109, the molded part is inspected based on the information created in steps S101 and S102. If OK, the process ends.

In step S110, step S1
Based on the result of the inspection in step 09, the mold at the place where the precision of the molded product is insufficient is corrected.

(Product Design) Next, the product is designed.
Creation of a design drawing of each component will be described. The design drawing of the part is created by a 2D-CAD device or a 3D-CAD device.

Here, the design of parts will be described using the information processing apparatus shown in FIG. 2, for example, a CAD apparatus.

FIG. 2 is a block diagram of a CAD apparatus.
In the figure, reference numeral 201 denotes an internal storage device, and 202 denotes an external storage device, which comprises a semiconductor storage device such as a RAM for storing CAD data and a CAD program, a magnetic storage device, and the like.

Reference numeral 203 denotes a CPU, which executes processing in accordance with the instructions of the CAD program.

Reference numeral 204 denotes a display device, and the CPU device 20
The shape and the like are displayed according to the instruction of No. 3.

Reference numeral 205 denotes an input device such as a mouse or a keyboard for giving an instruction or the like to the CAD program.

Reference numeral 206 denotes an output device such as a printer for outputting a paper drawing or the like in accordance with an instruction from the CPU device 203.

An external connection device 207 connects the present CAD device to an external device, supplies data from the present device to the external device, and controls the present device from the external device.

FIG. 3 is a flowchart showing the processing operation of the CAD apparatus shown in FIG.

First, when the operator instructs the activation of the CAD program by the input device 205, the CAD program stored in the external storage device 202 is read into the internal storage device 201, and the CAD program is executed on the CPU device 203. (Step S301).

The operator adds dimensional tolerance and the like as attribute information to the shape model using the input device 205 (step S303). The added attribute information can be displayed on a display device as image information such as a label. The added attribute information is stored in the internal storage device 201 in association with the shape model.

The operator specifies search conditions for the attribute information by the input device 205, and groups the display so that display control and the like for the attribute information can be performed collectively (step S304). Information on the grouping of the attribute information is stored in the internal storage device 201. The operator may designate a group in advance and perform attribute assignment. Further, the operator can register / delete attribute information to / from the group using the input device 205.

Next, the operator designates conditions such as groups using the input device 205 and performs display control such as display / non-display and coloring of attribute information such as dimensional tolerance (step S305). Further, the operator operates the input device 205.
Thus, the display method such as the display direction, magnification, and display center of the shape model is set. By specifying the display method later, the shape model can be displayed in the specified display direction, magnification, and display center. The display method can be associated with the attribute information grouping. When the display method is specified, only the associated attribute information can be displayed. The display method is stored in the internal storage device.

According to the instruction of the operator, the attribute information can be stored in the external storage device 202 or the like (step S306). An identifier can be added to the attribute information,
This identifier can be added and stored in the external storage device 202. Using this identifier, attribute data can be associated with other data.

The information obtained by adding information to the attribute information on the external storage device 202 can be read into the internal storage device 201 to update the attribute information.

The operator uses the input device 205 to store a CAD attribute model in which attribute information is added to the shape model in the external storage device 202 (step S307).

Here, the shape model and the CAD attribute model will be described.

FIG. 4 is a diagram showing an example of a shape model, and FIG. 5 is a conceptual diagram showing the relationship between the components constituting the shape model.

FIG. 4 shows So as a typical example of a shape model.
lidModel. As shown in the figure, Solid
Model is a representation method that defines the shape of parts and the like in a three-dimensional space on CAD, and uses topology information (Topology).
And geometric information (Geometry). Soli
As shown in FIG. 5, the phase information of the dModel is hierarchically stored on the internal storage device 201, and is stored in one or more SheModels.
ll and one or more faces for one shell
, One or more Loops for one Face,
One or more Edges and one E for one Loop
and two Vertex for dge.

Surface information representing a Face shape such as a plane or a cylindrical surface with respect to the Face is stored in the internal storage device 201 in association with each other. Edg
Curve information expressing the shape of Edge such as a straight line or an arc with respect to e is stored in the internal storage device 201 in association with each other. Coordinate values in a three-dimensional space are stored in the internal storage device 201 in association with Vertex.

Shell, Face, Loop, Ver
Attribute information is stored in the internal storage device 201 in association with each phase element of tex.

Here, an example of a storage method on the internal storage device 201 will be described using Face information as an example.

FIG. 6 is a diagram showing the Fac on the internal storage device 201.
It is a conceptual diagram which shows the storage method of e information.

As shown in the figure, Face information is Face
It consists of an ID, a pointer to a LoopList that constitutes a Face, a pointer to Surface data representing a Face shape, and a pointer to attribute information.

The LoopList stores the IDs of all the Loops constituting the Face in a list format. The Surface information includes a SurfaceType and a SurfacePar according to the SurfaceType.
meter. The attribute information includes an attribute type and an attribute value corresponding to the attribute type. The attribute value includes a pointer to Face, a pointer to a group to which the attribute belongs, and the like.

(Input and Display of Attribute Information to 3D Model)
Further, input of attribute information to the 3D model and display of the 3D model with the attribute information added will be described in detail.

FIGS. 7 to 11 are diagrams showing the 3D model and the attribute information. FIGS. 12 to 14 are flowcharts showing the processing operation when adding the attribute information to the 3D model.

In step S121 in FIG. 12, the 3D model 1 shown in FIG. 7 is created, and a view necessary for adding attribute information to the created 3D model 1 is set in step S122.

Here, the view is a requirement for viewing the 3D model 1 in a (virtual) three-dimensional space, which is defined by the direction of the line of sight, the magnification, and the center of the line of sight, and is related to the display of the 3D model 1. It is specified. For example, in FIG. 7, the view A is determined in a viewing direction orthogonal to the plan view shown in FIG. Center of magnification and line of sight is 3D
The shape of the model 1 and the assigned attribute information are determined so that substantially all of them can be displayed on the display screen of the display device. For example, in the present embodiment, the magnification is twice and the center of the line of sight is set substantially at the center of the plan view. Similarly, a view B in a viewing direction orthogonal to the front view and a view C in the viewing direction orthogonal to the side view are set.

Next, attribute information is input in association with each view set in step S123 so as to face the view direction of each view. 8 and 10A, FIG.
FIG. 1A is a diagram illustrating a state in which view A, B, and C attribute information is added. 9 and 10 (b), FIG.
(B) is the 3D model 1 and attribute information viewed from each of the views A, B, and C.

The association between each view and the attribute information is as follows:
It may be after the input of the attribute information. For example, a 3D model is created as shown in the flowchart of FIG.
131), after inputting attributes in step S132, attribute information is associated with a desired view in step S133. Further, if necessary, correction such as addition or deletion of attribute information associated with the view is made.

The attribute information may be input in a state where the 3D model 1 is displayed two-dimensionally from each view. The input can be realized without any difference from the step of creating a two-dimensional drawing by so-called 2D-CAD. If necessary, the input may be performed while displaying the image three-dimensionally. Since the input can be performed while viewing the 3D model 1 three-dimensionally, the input can be realized more efficiently and without errors.

Next, when viewing the attribute information of the 3D model 1, by selecting a desired view in step S141 in FIG. 14, the view direction, magnification, and center of view of the view selected in step S142 are selected. Based on 3
The shape of the D model 1 and the attribute information given in association with the view are displayed. Here, the selectable views of the 3D-model 1 are appropriately stored and displayed on the screen with icons or the like so that the views can be easily selected. For example, when view A, view B, or view C is selected, FIG. 9 or FIG. 10A or FIG. 11B respectively.
Is displayed. At this time, since the attribute information is arranged to face each view, the user can very easily and easily see two-dimensionally on the display screen.

(Other Input Methods of Attribute Information) FIGS. 11 to 1
In the input of the attribute information described above using FIG.
Although the attribute information is associated with each view, the associating means is not limited to the above. For example, the attribute information may be grouped and the group may be associated with the view.

A description will be given based on the flowcharts shown in FIGS.

The same result and effect as described above can be obtained by selectively inputting attribute information or grouping based on search results and associating the group with an arbitrary view. Further, by making a correction such as adding or deleting the attribute information to the group, the attribute information associated with the view can be operated.

That is, a 3D model is generated (step S1).
51) Input attribute information (step S152), 3D
The line of sight of the view, the center position, and the magnification are set for the model (step S153). And step S
The attribute information input in step 152 is grouped, and the set view is set in association with the grouped attribute information (step S154).

When performing display, a view to be displayed is selected as shown in FIG. 16 (step S161).
The attribute information set for the selected view is displayed (step S162).

(Setting of a plurality of views) Next, a case where a plurality of views are set for the same viewing direction will be described.

FIG. 17 is a flowchart showing a processing operation when a plurality of views are set for the same gaze direction. FIG. 18 is a flowchart showing a processing operation for setting a plurality of views for the same gaze direction. It is a figure showing a 3D model.

The case where a plurality of views are set in the projection direction of the front view in the 3D model 1 shown in FIG. 7 will be described.

A 3D model is created as described above (step S171), and in step S172, a view D, which is the first view, is set. The line of sight is the projection direction of the front view, the magnification is, for example, two times, and the center position is substantially at the center of the front view. Then, the line of sight position is set. Here, the line-of-sight position defines a position where the 3D model 1 in the line-of-sight direction can be seen, that is, displayed. The view D is, for example, 30 mm from the outer shape of the front view of the 3D model 1.
Is set to the position. In FIG. 18, it is located on a virtual plane D. However, here, projections by so-called trigonometry (front view, plan view, left and right side views, bottom view, back view)
Regarding, as long as the line-of-sight position is located outside the 3D model 1, any position has no relation to the display content.

Then, in step S173, attribute information as shown in FIG. 10A is input in association with the view D, and when viewed from the view D, as shown in FIG. Can be seen very easily and easily.

Next, in step S174, view E, which is the second view, is set. The line-of-sight direction is the same as that of the view D, and is the direction facing the front view.
Similarly, the double and center positions are also set substantially at the center of the front view.
Next, the line-of-sight position is set near the corner of the step-shaped groove of the 3D model 1.

Next, the line-of-sight position is set at the center of the hole position of the 3D model 1. The line of sight is located on a virtual plane E in FIG. At this time, the 3D model 1 viewed from the view E has the cross-sectional shape of the 3D model 1 cut by the virtual plane E as shown in FIG. Attribute information is input in association with the view E.

When the view E is selected, the 3D model 1
By moving, rotating, or the like, three-dimensional display can be performed as shown in FIG.

Here, the operability of switching the display of the entire model as shown in FIG. 7 to the display of the cross section and confirming the attribute information will be described. In some cases, it is difficult to confirm at which position on the model the virtual plane associated with the attribute information is located and which direction of the line of sight is facing.

FIG. 20 shows an example showing the position of the virtual plane and the direction of the line of sight. When the entire 3D model is displayed, a line is displayed at the position where the 3D model and the virtual plane intersect, that is, at the cross-sectional position. This line is of a different type from the line representing the edge of the 3D model. For example, chain lines, fine lines, different colors, and the like.

Displaying a mark indicating the direction of the line of sight defined on the virtual plane and the name of the virtual plane near this line further assists recognition.

Next, a partial detailed view will be described with reference to FIGS. A case where attribute information is confirmed from the cross section of FIG. 21A will be described.

When confirming the attribute information as shown in the partial detailed view of the two-dimensional drawing, as shown in FIG. 21 (b), other ridge lines may be complicated and visibility may be deteriorated.

Therefore, as shown in FIG. 22, for a shape that is not related to the displayed attribute information, the visibility is improved by changing the display method of the shape. In FIG. 22, ridge lines having unrelated shapes are represented by two-dot chain lines.

The method of changing the display method is not limited to the two-dot chain line, such as different color display and translucency.

FIG. 23 shows an example in which an area between two planes is displayed. FIG. 23A shows a line indicating the position where the two planes intersect with the 3D model, and FIG.
FIG. 2 shows a diagram in which the 3D model and the attributes of only the region between the two planes are displayed.

By displaying only the range to be displayed,
The operator can eliminate unnecessary information, improve visibility, and work efficiently.

According to the present embodiment, the attribute information can be input and displayed while looking at the so-called cross-sectional shape, so that the point indicated by the attribute information can be easily and immediately recognized.

Further, the configuration may be such that a plurality of views in which the shape of the 3D model 1 looks the same are provided. View F having the same gaze direction, magnification, center position, and gaze position in FIG.
And view G. In this example, the views F and G face the plan view of the 3D model 1. By associating, for example, attribute information with each view in a group, more easily viewable attribute information can be realized. For example, FIG. 25 is a plan view of the 3D model 1 in which attribute information relating to external dimensions is grouped. FIG. 26 is a grouping of the attribute information relating to the hole position and the hole shape in the above. The grouped attribute information is associated with the view F and the view G, respectively. By grouping related attribute information in this way and assigning it to a view, related attribute information can be more easily viewed.

(View magnification) By setting the view magnification to a desired magnification, a complicated shape or a detailed shape can be more easily seen.

In this embodiment, 3D-CAD in general, and 2D-CA in general, irrespective of the hardware constituting the 3D-CAD apparatus or the method of constructing the 3D shape model.
Effective for D.

(Position of Attribute Information) Next, the position of attribute information will be described.

In order to express the 3D model and the attribute information to be added to the 3D model on a display screen in a very easy-to-understand manner as a two-dimensional drawing, the operator appropriately selects or groups a plurality of attribute information of the part of the 3D model to be expressed. To associate with the attribute placement plane. In the case of a two-dimensional drawing expression method, the position of the attribute information may be arranged in the area in the line of sight of the related attribute arrangement plane. In, a device is required to make full use of the advantages of the 3D model.

Here, the attribute arrangement plane defines requirements relating to the display of the 3D model 1 and the attribute information added to the 3D model 1 as in the case of the view. In the present embodiment, the attribute placement plane is defined by the position of one point (hereinafter referred to as a viewpoint) of a (virtual) three-dimensional space, the normal direction (view direction) of the plane to be created, and the 3D model 1, And the display magnification of the attribute information added to the 3D model 1
(Only magnification). Here, the line-of-sight position means that the 3D model 1 in the line-of-sight direction can be seen from the position.
That is, the display position is determined.

One of the merits of the 3D model is that the 3D model can be three-dimensionally represented on the display screen in a form close to the real thing. Therefore, the operator who creates the model or the operator of the next process using the model (process designer, die design) The point is that for a creator, a measurer, etc.), the conversion work from 2D to 3D (this is mainly performed in the operator's head), which is necessary when handling a 2D diagram, can be omitted. . This conversion operation largely depends on the ability of the operator, and in this conversion operation, erroneous conversion due to erroneous conversion and loss of conversion time may occur.

In the 3D drawing, it is necessary to devise the display of the attribute information (position of the attribute information) in the three-dimensional display so as not to impair the merit of the 3D model in that it can be three-dimensionally expressed.

[0106] The points of the improvement will be described with reference to FIG.

FIG. 30 (a) is a perspective view of the 3D model 2 used for description, FIG. 30 (b) is a plan view of the 3D model 2, and FIG. 30 (c) is an attribute without devising the 3D model 2. FIG. 30D is a perspective view illustrating a state where information is added.
FIG. 5 is a perspective view obtained by devising the arrangement of attribute information.

First, for the 3D model 2, an attribute arrangement plane 218 is created and attribute information is input to create a two-dimensional plan view. FIG. 30B shows a state in which the image is displayed from the viewpoint of the attribute arrangement plane 218.

When inputting the attribute information, as shown in FIG. 30 (c), when the arrangement planes of the plurality of attribute information are alternately arranged, the attribute information overlaps, making it difficult to determine the content of the attribute information. As shown in FIG. 30 (c), even if the attribute information is small, it is difficult to see the attribute information. If the shape is more complicated, the attribute information is no longer useful information, and it can be easily imagined that the attribute information does not become a drawing in a perspective state.

However, by arranging the attribute information in the same plane as shown in FIG. 30 (d), the attribute information does not overlap each other, and the two-dimensional drawing (FIG. 30 (b)) Equivalently, the attribute information can be easily determined.

In this way, in a drawing form (three-dimensional drawing) in which attribute information is added to the 3D model, not only a two-dimensional drawing but also a three-dimensional drawing, which is an advantage of the 3D model, is expressed. Since the attribute information can be easily determined, it can be used as a three-dimensional drawing (3D drawing).

It is desirable that the arrangement plane of the attribute information is the same as the attribute arrangement plane.

In this example, a 3D model having a simple shape is used. However, when handling a 3D model having an actual more complicated shape, it is necessary to set a plurality of attribute arrangement planes in the same line-of-sight direction.

Then, it is conceivable that a plurality of attribute arrangement planes and attribute information associated therewith are displayed at the same time, and then a desired attribute arrangement plane is selected or attribute information is selected.

At this time, if the position of the attribute information arrangement plane and the attribute arrangement plane are far apart, it becomes difficult to understand the relation between the attribute information and the attribute arrangement plane. To avoid this, it is preferable to arrange the attribute information on the same plane as the attribute arrangement plane in order to make the association visually easy to understand.

Further, when creating the attribute placement planes in the same line of sight described with reference to FIG. 24, it is preferable that a plurality of attribute placement planes in the same line of sight are spaced apart.
When simultaneously displaying the plurality of attribute placement planes and the attribute information associated therewith, if the attribute placement plane is created on the same plane, the placement plane of the attribute information is also on the same plane.
Even if the line of sight is shifted from the line of sight and viewed obliquely, the pieces of attribute information overlap, making it difficult to see. In the first place, since there is a large amount of attribute information when viewed from the same direction, it is divided into a plurality of attribute arrangement planes, and it is inevitable that attribute information overlaps when displaying attribute information at the same time.

Even if it is difficult to see from the line of sight, it is effective to arrange the attribute arrangement planes in the same line of sight apart as a means to make it easier to determine the attribute information in a perspective state.

(Magnification) Next, the magnification will be described.

By setting the magnification of the attribute arrangement plane to a desired magnification, a complicated shape or a detailed shape can be more easily seen.

FIG. 31 is a diagram showing a state where a part of the 3D model 1 is displayed in an enlarged manner. For example, as shown in FIG. 31 (a), by setting the attribute arrangement plane 217 for the 3D model 1 with the line of sight directed to the plan view, the viewpoint position near the corner, and a magnification of, for example, 5 times, The step-like shape and attribute information can be displayed in a very easy-to-understand manner (FIG. 31).
(B)). Also in this case, the attribute information associated with the attribute arrangement plane 217 is all arranged in the frame 217a. The attribute arrangement plane 217 is equivalent to a so-called local projection view. However, by viewing only the inside of the frame 217a, all the associated attribute information can be seen, and the attribute to the 3D model outside the frame 217a can be seen. Since there is no need to confirm the presence or absence of information at all, efficient work can be realized.

In the present embodiment, 3D-CAD in general, and 2D-CA in general, irrespective of the hardware constituting the 3D-CAD apparatus or the method of constructing the 3D shape model.
Effective for D.

(Selection of Plurality of Attribute Placement Planes) Next, selection of a plurality of attribute information planes will be described.

In the above embodiment, when displaying the attribute information associated with the attribute arrangement plane, the number of the attribute arrangement planes to be selected is only one. However, in view of the object of the present invention, a plurality of attribute arrangement planes are selected. There is no problem even if you select the placement plane.

However, when a single selection of the attribute arrangement plane is performed, only one viewpoint position and one line-of-sight direction are provided, so that there is only one display method on the display device. You have to devise it because it becomes more than one. For example, when multiple selections are made, all the attribute information associated with the selected attribute placement plane is displayed, and it is possible to select which attribute placement plane setting to use for the viewpoint position and gaze direction. Can be considered.

The display of the attribute information is changed so that the group can be easily identified by changing the color for each related attribute arrangement plane.

(Setting of Horizontal or Vertical Direction of Attribute Arrangement Plane) Next, setting of the horizontal or vertical direction of the attribute arrangement plane will be described.

In the present invention, only the position of the viewpoint, the line of sight, and the magnification are set on the attribute arrangement plane, but the setting of the horizontal or vertical direction of the attribute arrangement plane is not mentioned.

In the two-dimensional drawing, as shown in FIG. 32, rules are provided for the arrangement of the figures (plan view, front view, side view) viewed from each line of sight. This is a device for expressing the three-dimensional shape of the real object on a two-dimensional plane so that the positional relationship from each line-of-sight direction can be easily understood.

On the other hand, in a 3D drawing mode in which attribute information is added to a 3D model to make a drawing, a two-dimensional representation viewed from a direction orthogonal to the outer surface of the 3D model (FIGS.
(B) and (b) of FIG. 11 as well as the 3D model rotated from this state, and a three-dimensional representation viewed from an oblique direction ((a) of FIG. 10 and (a) of FIG. 11) is also possible. Becomes

Therefore, in the form of the 3D drawing, when displaying the plan view, the front view, and the side view, the horizontal direction or the vertical direction of the attribute arrangement plane (this horizontal direction or the vertical direction corresponds to each direction of the display screen). Does not need to be specified otherwise. If the 3D model and the attribute information assigned to the 3D model can be correctly expressed, any of (a), (b), (c), (d), and (e) shown in FIG. 33 can be said to be correct expressions. . Furthermore, if the 3D model is slightly rotated, the 3D model can be three-dimensionally expressed, and the location of the part that has been viewed at the entire 3D model, and the locations of the plan view and the side view viewed from other viewing directions are also easy. This is because there is no particular problem even if the display is performed without concern for the positional relationship between the line of sight in the horizontal direction or the vertical direction of the attribute arrangement plane.

However, in the 3D drawing form in which attribute information is added to the 3D model, not all operators who handle the 3D drawing have an environment in which the 3D model can be freely rotated and displayed. Without modifying the 3D drawing,
This is because there is a workplace or the like where it is sufficient to store and view in a two-dimensional image information electronic data format displayed by each attribute arrangement plane, and there are also workplaces that cannot be dealt with unless they are traditional paper drawings.

Assuming such a case, the display as viewed from each line of sight must apply a rule such as a two-dimensional drawing.

Therefore, when creating the attribute placement plane, it is necessary to set the horizontal direction or the vertical direction when displayed on the display device 204.

FIG. 34 shows a flowchart of the processing.

First, a 3D model is created (step S
3001).

Next, the position of the viewpoint, the direction of the line of sight, and the magnification are set for the 3D model, and an attribute arrangement plane is created (step S3002).

Then, the horizontal direction (or the vertical direction) of the attribute arrangement plane is designated (step S3003).
To specify the horizontal direction (or vertical direction), the directions of three axes (X, Y, Z) existing in (virtual) 3D space
May be selected, or the direction of the ridge line of the 3D model or the vertical direction of the surface may be selected.

By specifying the horizontal direction (or the vertical direction) of the attribute arrangement plane, the display position of the 3D model and the attribute information to be displayed by selecting the attribute arrangement plane is uniquely determined.

When creating another attribute placement plane, the horizontal direction (or the vertical direction) may be designated while observing the relationship with the line of sight of the already created attribute placement plane.

(Display Method of Attribute Information) Next, a display method of attribute information will be described.

In the above embodiment, as an order for selectively displaying the attribute information input to the 3D model, first, an attribute placement plane is selected, and then the attribute associated with the attribute placement plane is selected. The information is appropriately displayed, and the description has been given in this order. However, the present invention is not limited to this method. The attribute information is selected, and then the position of the viewpoint on the attribute placement plane with which the attribute information is associated , Gaze direction,
A method of displaying the 3D model and the attribute information at the magnification is also effective.

FIG. 35 (displayed from selection of attribute information) is a flowchart showing this series of processing operations.

While the 3D model and the attribute information in the plan view of FIG. 8 are displayed, a columnar projection φ15 ± 0.05 is selected (step 311).

The attribute information includes the viewpoint position, line-of-sight direction,
3D drawing and attribute placement plane 211 based on magnification
To display attribute information associated with (step 3
12). In this case, a front view is displayed as shown in FIG.

As a result, the selected attribute information and 3D
Since the relationship with the model is displayed two-dimensionally, it becomes easier to recognize.

In the above embodiment, as the order of selectively displaying the attribute information input to the 3D model, first, an attribute arrangement plane or attribute information is selected, and then the attribute information is selected. The method of appropriately displaying the attribute information associated with the attribute placement plane based on the setting of the attribute placement plane and the attribute placement plane associated with the attribute information has been described, but is not limited to this method. Selecting the geometric information (Geometry) of the 3D model, displaying the attribute information associated with the geometric information, and further, by selecting the viewpoint position, line-of-sight direction, and magnification of the attribute arrangement plane associated with the attribute information, A method of displaying the 3D model and the attribute information is also effective.

FIG. 36 (displayed from selection of attribute information) is a flowchart showing a series of processing operations.

Geometric information of 3D model (edges, faces, vertices)
Is selected (step 321).

[0149] The information associated with the selected geometric information
The attribute information is displayed (step 322).

If there are a plurality of attribute information items associated with each other, all of them may be displayed. Further, all the attribute information belonging to the attribute arrangement plane with which the attribute information is associated may be displayed.

Next, the 3D model and the attribute information are displayed based on the viewpoint position, line-of-sight direction, and magnification (horizontal direction of the attribute arrangement plane) of the attribute arrangement plane related to the displayed attribute information. At this time, when a plurality of attribute placement planes are candidates, the operator is caused to select a target to be displayed.

As described above, the related attribute information can be searched and displayed using the geometric shape of the 3D model as a key, so that it is very easy to use.

Select geometric information → display related attribute information (single) → display at display position of related attribute placement plane. Select geometric information → display related attribute information (single) → display position of related attribute placement plane. display. Display all attribute information related to attribute placement plane Select geometric information → display related attribute information (multiple) → display at display position of related attribute placement plane (single attribute placement plane) Select geometric information → related Attribute information display (plural) → Display at the display position of the related attribute placement plane (single attribute placement plane). Display all attribute information related to attribute placement plane Select geometric information → display related attribute information (multiple) → display at display position of related attribute placement plane (multiple attribute placement plane) Select geometric information → related attribute Information display (plural) → Display at the display position of the related attribute arrangement plane (multiple attribute arrangement plane). Displays all attribute information associated with the attribute placement plane

(Display) The display of the 3D model to which the attribute information created as described above is added will be described.

The 3D model to which the attribute information created by the information processing apparatus shown in FIG. 2 is added can be used by transferring the data of the created 3D model itself or the created 3D model via an external connection device. 1 can be displayed and used in each step shown in FIG.

First, a 3D model created by a product / unit / part design engineer or an operator who is a design designer himself / herself is shown in FIG.
By performing the display as shown in FIG. 10B and FIG. 11B, the 3D image is displayed as if a two-dimensional drawing was created.
New attribute information can be added to the model. In addition, for example, when the shape is complicated, the 3D model is alternately displayed as a three-dimensional display and a two-dimensional display as necessary,
Alternatively, by displaying the same on the same screen, desired attribute information can be input efficiently and accurately.

Check the created 3D model /
The operator in the position of approval confirms the created 3D model by displaying the same 3D model as shown in FIGS. 9, 10 (b) and 11 (b) on the same screen or by switching. , OK, NG, hold, examination required, etc., attribute information such as a mark, a symbol, or coloring is added. Needless to say, the check is performed while comparing and referring to a plurality of products / units / parts as necessary.

Further, a design engineer or a design designer other than the creator of the created 3D model may create the 3D model.
It can be used when designing another product / unit / part with reference to the D model. By referring to this 3D model, the intention of the creator or the design method can be easily understood.

In producing and manufacturing a 3D model, an operator who assigns necessary information to the 3D model or attribute information can be used. In this case, the operator is a technician who sets the manufacturing process of the product / unit / part. The operator adds, for example, the type of machining process, the tool to be used, and the like, or adds a corner R and a chamfer to the ridge, corner, corner, and the like necessary for machining to the 3D model. Alternatively, a measurement method instruction for dimensions, dimensional tolerances, and the like, addition of measurement points to the 3D model, and information to be noted in measurement are input. These can be efficiently and reliably performed while viewing the display arranged and created in an easily viewable manner as shown in FIGS. 9, 10 (b) and 11 (b), and confirming the shape three-dimensionally as necessary. Done.

In producing and manufacturing a 3D model, an operator who obtains information necessary for making a desired preparation from the 3D model or attribute information can be used. In this case, the operator is a design engineer who designs dies, jigs and tools, various devices, and the like necessary for manufacturing and manufacturing.
The operator understands and grasps the shape while viewing the 3D model in a three-dimensional state, and displays necessary attribute information in an easily viewable display as shown in FIGS. 9, 10 (b) and 11 (b). Check and extract. Based on the attribute information, the operator designs dies, jigs and tools, various devices, and the like. For example, when the operator is a mold design engineer, the operator designs the mold while examining the configuration, structure, and the like of the mold from the 3D model and the attribute information. If necessary, corners R and chamfers are added to ridges, corners, corners, and the like necessary for mold production. If the mold is a resin injection mold, the operator adds, for example, a draft necessary for molding to the 3D model.

Further, it can be used by an operator who manufactures and manufactures products / units / parts. In this case, the operators are processing technicians and assembling technicians of products / units / parts. The operator easily understands and grasps the shape to be machined or the shape to be assembled while viewing the 3D model in a three-dimensional state, and arranges them as easily seen in FIGS. 9, 10 (b) and 11 (b). Processing and assembling are performed by looking at the created display. Then, if necessary, the operator checks the shape and the like of the processing section and the assembly section. Further, the processed, difficult to process, or the processing result may be added as attribute information to the 3D model or the already added attribute information, and the information may be fed back to a design engineer or the like.

Also, manufactured / manufactured products / units /
It can be used by operators who inspect, measure and evaluate parts. In this case, the operator is a technician who inspects, measures, and evaluates products / units / parts. The operator inputs the measurement method, the measurement point, and the information to be noted in the measurement for the above-mentioned dimensions, dimensional tolerances, etc., in FIG.
Inspection, measurement, and evaluation are performed efficiently and reliably while observing the display created and arranged in an easy-to-read manner as shown in FIG. 11B and confirming the shape three-dimensionally as necessary. Then, the operator can add inspection, measurement, and evaluation as attribute information to the 3D model as needed. For example, a measurement result corresponding to the dimension is given. In addition, a mark or a symbol is added to attribute information of a defective part such as a defect outside the dimensional tolerance or a flaw or the 3D model. Further, similarly to the check result, a mark, a symbol, a color, or the like which has been inspected, measured, and evaluated may be made.

Further, operators in various departments and roles related to production / manufacture of products / units / parts can be used. In this case, the operator may be, for example, a person who analyzes production and manufacturing costs, or a product / unit /
A person in charge of ordering parts themselves, related various parts, etc., a person in charge of creating manuals for products / units / parts, packing materials, and the like. Also in this case, the operator easily understands and grasps the shapes of the products / units / parts while viewing the 3D model in a three-dimensional state, and while FIG. 9B, FIG.
The user can efficiently perform various tasks by seeing the display arranged and created in an easy-to-read manner as shown in FIG.

(Input of Inspection Instruction) Next, the inspection instruction will be described.

As described above, in order to inspect the completed molds and parts, dimensions and the like are assigned to the 3D model in advance and displayed.

Here, the attribute information is input to the set attribute arrangement plane so that the position to be inspected is displayed clearly.

That is, the order of inspection, the inspection position, the inspection item, and the like are input for the faces, lines, ridges, and the like constituting the 3D model. By performing inspection in that order, the number of inspection steps is reduced.

First, by inputting the item and position to be inspected, the whole is input. Next, by a predetermined method,
Assign the order of examination and assign the order to each item. Then, when actually performing the inspection, by designating the order, the attribute arrangement plane is selected, and in the displayed attribute arrangement plane, the surface at the position to be inspected, etc.
The inspection position is displayed in a different form (different in color, etc.) from the others, and the inspection position is clear.

Then, for each designated inspection item, the inspection result is input, and it is determined whether or not reshaping is necessary.

As described above, according to the embodiment of the present invention, an easy-to-view screen can be obtained by a simple operation based on the set attribute arrangement plane and attribute information. Further, the relationship between the line-of-sight direction and the attribute information can be understood in a list. Furthermore, erroneous reading due to an operation error by the operator is reduced by inputting dimension values and the like in advance.

Further, only the information associated with the line of sight can be seen, and the required information can be easily known.

A large amount of attribute information in the same line of sight is
By allocating to a plurality of attribute arrangement planes, an easy-to-view screen can be obtained, and necessary information can be easily known.

By setting an attribute arrangement plane inside the 3D model, that is, in a cross-sectional shape, attribute information can be displayed in an easily understandable manner.

Further, since the size of the attribute information is changed in accordance with the display magnification of the attribute arrangement plane, it can be easily understood and appropriately expressed.

Further, by arranging the attribute information on the attribute arrangement plane, the attribute information can be read even when the 3D model is three-dimensionally viewed obliquely.

Further, by using the attribute information as a key, it is possible to search for an attribute arrangement plane and to view only information associated with the attribute arrangement plane, so that necessary information can be easily known.

Further, by using the geometric information as a key, it is possible to search for attribute information and an attribute arrangement plane, and to see only information associated with the attribute arrangement plane, and to easily know necessary information. .

[0178]

As described above, according to the present invention, C
Attribute information such as dimensions can be easily and easily added to and displayed on data created by AD devices, etc.
Seeing can be realized. Further, the added attributes can be used efficiently.

[Brief description of the drawings]

FIG. 1 is a diagram showing an overall flow of mold part die production.

FIG. 2 is a block diagram of a CAD apparatus.

FIG. 3 is a flowchart showing a processing operation of the CAD device shown in FIG. 2;

FIG. 4 is a diagram showing an example of a shape model.

FIG. 5 is a conceptual diagram showing the relationship between the components constituting the shape model.

FIG. 6 is a conceptual diagram showing a method of storing Face information on an internal storage device 201.

FIG. 7 is a diagram showing a 3D model and an attribute arrangement plane.

FIG. 8 is a diagram showing a 3D model and attribute information.

FIG. 9 is a diagram showing a 3D model and attribute information.

FIG. 10 is a diagram showing a 3D model and attribute information.

FIG. 11 is a diagram showing a 3D model and attribute information.

FIG. 12 is a flowchart illustrating a processing operation when adding attribute information to a 3D model.

FIG. 13 is a flowchart showing a processing operation when adding attribute information to a 3D model.

FIG. 14 is a flowchart showing a processing operation when adding attribute information to a 3D model.

FIG. 15 is a flowchart showing a processing operation when adding attribute information to a 3D model.

FIG. 16 is a flowchart when displaying a 3D model to which attribute information has been added.

FIG. 17 is a flowchart illustrating a processing operation when setting a plurality of views in a 3D model.

FIG. 18 is a diagram illustrating a state where a plurality of views are set in a 3D model.

FIG. 19 is a diagram showing a 3D model viewed from a view E in FIG. 19;

FIG. 20 is a diagram illustrating a view on a 3D model.

FIG. 21 is a diagram showing a partial detailed view.

FIG. 22 is a diagram illustrating an example of changing the display of a shape that is not related to attribute information.

FIG. 23 is a diagram showing a case where only shapes in an arbitrary range are displayed.

FIG. 24 is a diagram showing a state in which a 3D model and a plurality of views are set.

FIG. 25 is a diagram showing a 3D model viewed from a view F shown in FIG. 24;

FIG. 26 is a diagram showing a 3D model viewed from a view G shown in FIG. 24;

FIG. 27 is a diagram illustrating an example of a 3D model.

28 is a front view, a plan view, and a side view of the 3D model shown in FIG. 27.

FIG. 29 is a diagram illustrating a state where attribute information is added to the 3D model illustrated in FIG. 27;

FIG. 30 is a diagram illustrating an example of a 3D model.

FIG. 31 is a diagram illustrating a state in which a part of the 3D model is enlarged and displayed.

FIG. 32 is a front view, a plan view, and a side view of the 3D model.

FIG. 33 is a diagram illustrating a state in which a 3D model and attribute information are two-dimensionally represented.

FIG. 34 is a flowchart showing a processing operation of setting a display direction of an attribute arrangement plane.

FIG. 35 is a flowchart when a 3D model is displayed using attribute information as a key.

FIG. 36 is a flowchart when a 3D model is displayed using geometric information as a key.

[Explanation of symbols]

 1 3D model 2 3D model 201 Internal storage device 202 External storage device 203 CPU device 204 Display device 205 Input device 206 Output device 207 External connection device

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Etsuichi Sasako 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Inc. (72) Inventor Toshiyuki 3-30-2 Shimomaruko, Ota-ku, Tokyo (72) Inventor Hiroshi Takarada 3-30-2 Shimomaruko, Ota-ku, Tokyo In-house Canon (72) Inventor Ryozo Yanagisawa 3-30-2 Shimomaruko, Ota-ku, Tokyo In-company F term (reference) 5B046 AA05 DA09 DA10 FA09 HA03 HA09 5B050 BA07 BA09 BA13 BA20 CA07 EA12 EA27 EA28 FA02

Claims (17)

[Claims] 1. A line-of-sight setting unit for defining an arbitrary line-of-sight direction and a viewpoint with respect to a 3D model, an attribute input unit for inputting attribute information corresponding to the line-of-sight direction set by the setting unit, the line-of-sight direction and the attribute information A storage unit that stores the attribute information associated with the line-of-sight direction designated by the instruction unit; and a display unit that displays attribute information associated with the line-of-sight direction specified by the instruction unit. An information processing apparatus comprising: display control means for switching a display method. 2. A line-of-sight setting unit for defining an arbitrary line-of-sight direction and a viewpoint with respect to the 3D model; an attribute input unit for inputting attribute information corresponding to the line-of-sight direction set by the setting unit; Storage means for storing attribute information in association with the information; instruction means for instructing the set line-of-sight direction; display means for displaying attribute information associated with the line-of-sight direction instructed by the instruction means; When the position set by the setting means is a position representing a cross section of the 3D model, the information processing apparatus includes a cross section position display means for specifying the position. 3. A line-of-sight setting unit for defining an arbitrary line-of-sight direction and a viewpoint with respect to the 3D model; an attribute input unit for inputting attribute information corresponding to the line-of-sight direction set by the setting unit; Storage means for storing attribute information in association with the information; instruction means for instructing the set line-of-sight direction; display means for displaying attribute information associated with the line-of-sight direction instructed by the instruction means; When the position set by the setting unit is a position representing a cross section of the 3D model, the information processing apparatus further includes a line-of-sight display unit that specifies the line-of-sight direction. 4. A grouping means for grouping a plurality of pieces of attribute information input by said attribute input means, and said storage in association with the grouped attribute information and a gaze direction set by said gaze setting means. 4. The information processing apparatus according to claim 1, further comprising a storage control unit that stores the information in a unit. 5. The information processing apparatus according to claim 4, wherein said storage control means stores different attribute information in association with a plurality of same gaze directions. 6. The line-of-sight setting unit sets different positions in the same line-of-sight direction, and the storage control unit stores attribute information at different positions in the same line-of-sight direction in association with each other. The information processing apparatus according to claim 4. 7. The display control means for displaying, by a different display method, a shape other than the shape of an area sandwiched between different positions in the same line of sight set by the line of sight setting means. The information processing apparatus according to any one of claims 1 to 3. 8. The information processing method according to claim 1, wherein the display control unit displays a shape other than a shape to which attribute information associated with the line of sight is added by a different display method. apparatus. 9. A three-dimensional data generating step of generating data of an article having a three-dimensional shape, a line-of-sight setting step of defining an arbitrary line-of-sight direction and a viewpoint for the 3D model, and a line-of-sight direction set in the setting step An attribute input step of inputting attribute information so as to perform the operation, a storage step of storing the gaze direction and the attribute information in association with each other, an instruction step of designating the set gaze direction, and a gaze pointed by the instruction step. An information processing method comprising: a display step of displaying attribute information associated with a direction; and a display control step of switching a display method in an arbitrary range. 10. A line-of-sight setting step of defining an arbitrary line-of-sight direction and viewpoint for the 3D model; an attribute inputting step of inputting attribute information corresponding to the line-of-sight direction set in the setting step; A storage step of storing the attribute information in association with the attribute information; an instruction step of designating the set line-of-sight direction; a display step of displaying attribute information associated with the line-of-sight direction designated in the instruction step; When the position set in the setting step is a position representing a cross section of the 3D model, the information processing method includes a cross section position displaying step of specifying the position. 11. A line-of-sight setting step of defining an arbitrary line-of-sight direction and viewpoint for the 3D model; an attribute inputting step of inputting attribute information corresponding to the line-of-sight direction set in the setting step; A storage step of storing the attribute information in association with the attribute information; an instruction step of designating the set line-of-sight direction; a display step of displaying attribute information associated with the line-of-sight direction designated in the instruction step; When the position set in the setting step is a position representing a cross section of the 3D model, the information processing method includes a line-of-sight display step of clearly indicating the line-of-sight direction. 12. A grouping step of grouping a plurality of pieces of attribute information input in the attribute input step, and storing the grouped attribute information in association with a line-of-sight direction set in the line-of-sight setting step. 12. The information processing method according to claim 9, further comprising a storage control step of storing the information in a step. 13. The information processing method according to claim 12, wherein said storage control step stores different attribute information in association with a plurality of same gaze directions. 14. The visual axis setting step sets different positions in the same visual axis direction, and the storage control step associates and stores attribute information at different positions in the same visual axis direction. An information processing method according to claim 12. 15. The display control step of displaying, by a different display method, a shape other than a shape of an area sandwiched between different positions in the same line of sight set in the line of sight setting step. 12. The information processing method according to any one of 9 to 11. 16. The display control method according to claim 9, wherein a display other than the shape to which the attribute information associated with the line-of-sight direction is added is displayed by a different display method.
12. The information processing method according to any one of claims 11 to 11. 17. A program for implementing the information processing method according to claim 9. Description: