JP2002324084A - Apparatus and method for information processing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for information processing capable of viewing easily both of a 3D model and attribute information and using the information effectively despite of adding the information such as dimensions and dimension tolerances to the 3D model created by using a CAD apparatus. SOLUTION: In the CAD apparatus, a sight line direction (an attribute-placing plane) is set up for a created 3D model 1001 and the information is inputted in such a way to be opposed correctly to the set up attribute-placing plane. The information opposed correctly to a shape of the set up 3D model is displayed on a display means by specifying the set up attribute-placing plane. The plane has a frame and the information is placed in the frame.

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, in a 3D model as shown in FIG. 24 (a front view, a plan view, and a side view of this 3D model are shown in FIG. 25), attribute information is input as shown in FIG. 26, 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. 24, it is possible to see if the shape is relatively simple and the number of pieces of attribute information is about several tens, but in the case of a complicated shape or a large shape, several hundreds are necessary. 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”,
The attribute information is extremely difficult to read due to "it is difficult to understand the position of the dimension line, dimension auxiliary line, or leader line" (even the step shape at the corner in FIG. 26 is somewhat difficult to see).

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.

Further, attribute information to be indicated in a so-called sectional view or the like (for example, the depth of the counterbore hole 12 ± 0.1 in FIG. 24)
Is difficult to understand because the designated location 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 comprises: an attribute input unit for inputting attribute information for a 3D model; and an attribute arrangement for setting an attribute arrangement plane which is a virtual plane associated with the attribute information. Plane setting means, storage means for storing the attribute information in association with the attribute arrangement plane, and a first frame for setting a first frame set to surround a range of the attribute information associated with the attribute arrangement plane Frame setting means.

Further, the information processing method of the present invention includes an attribute input step of inputting attribute information for the 3D model, and an attribute arrangement plane setting step of setting an attribute arrangement plane which is a virtual plane associated with the attribute information. A storage step of storing the attribute information in association with the attribute placement plane; and a first frame setting step of setting a first frame set so as to surround a range of the attribute information associated with the attribute placement plane. And

[0024]

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 the measurement items.

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

In step S103, 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, a 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 start 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).

When the operator interactively instructs using the input device 205, a shape model is generated on the internal storage device 201 and displayed as an image on the display device 204 (step S302). This shape model will be described later. When the operator specifies a file name or the like using the input device 205, the external storage device 2
02 can be read into the internal storage device 201 so that it can be handled on a CAD program.

The operator creates an attribute placement plane in the three-dimensional space in which the shape model has been created using the input device 205 (step S303).

The image is displayed on the display device as image information such as a frame (double frame, fill in frame) or the like so that the position of the attribute arrangement plane can be easily determined. The setting information of the attribute arrangement plane is associated with the shape model and stored in the internal storage device 2.
01.

It is desirable to give a name to the attribute arrangement plane created as needed. The name assigned to the attribute placement plane can be displayed as a name label at a predetermined position on the frame of the attribute placement plane. The setting of the name label will be described later.

The operator adds dimensional tolerance and the like as attribute information to the shape model using the input device 205 (step S304). 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 associates the attribute information with the attribute arrangement plane using the input device 205. (Step S
305) The attribute information and the information related to the attribute arrangement plane are stored in the internal storage device 2.
01.

The operator may designate an attribute arrangement plane in advance, and perform attribute assignment while associating the attribute arrangement plane with the attribute arrangement plane. Further, the operator can use the input device 205 to set and cancel the association of the attribute information with the attribute arrangement plane.

Next, the operator designates the attribute placement plane by using the input device 205 to display / hide the attribute placement plane and the attribute information such as the dimensional tolerance associated with the attribute placement plane, or apply coloring. Display control is performed (step S306).

When the operator creates an attribute arrangement plane using the input device 205, the operator sets the viewpoint position, the line-of-sight direction, and the magnification of the attribute arrangement plane. By setting the display information of this attribute placement plane and specifying this attribute placement plane,
The shape model can be displayed with the set viewpoint position, line-of-sight direction, and magnification. Since the attribute placement plane is associated with the attribute information, the attribute information associated with the designated attribute placement plane can be selectively displayed. The display information of the attribute arrangement plane is stored in the internal storage device 20.
Stored in 1.

According to the instruction of the operator, the attribute information can be stored in the external storage device 202 or the like (step S307).

An identifier can be added to the attribute information,
This identifier can be added and stored in the external storage device 202. The attribute data is associated with other data using this identifier.

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 in the external storage device 202 the CAD attribute model obtained by adding the position information of the attribute arrangement plane, the display information of the attribute arrangement plane, and the attribute information to the shape model (step S308).

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.

Further, Surface information expressing 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 the Face, a pointer to the attribute placement plane to which the attribute belongs, and the like.

(Input and Display of Attribute Information to 3D Model)
Further, input of attribute information to a 3D model, a method of creating an attribute placement plane, and a 3D model to which attribute information is added
The display of the model will be described in detail.

FIGS. 7 to 11 show 3D models, attribute information,
FIGS. 12 to 14 are flowcharts showing processing operations when adding an attribute placement plane and attribute information to a 3D model.

At step S121 in FIG. 12, the 3D model 1 shown in FIG. 7 is created, and at step S122, a necessary attribute arrangement plane is set.

(Attribute arranging plane) Here, the attribute arranging plane stipulates requirements relating to the display of the 3D model 1 and the attribute information added to the 3D model 1.

In the present invention, the attribute arrangement plane is defined by the position of one point (hereinafter referred to as a viewpoint) in a (virtual) three-dimensional space, the normal direction (view direction) of the plane to be created, and the 3D model 1 , And information on the display magnification (hereinafter simply “magnification”) of the attribute information added to the 3D model 1.

Here, the line-of-sight position defines the position at which the 3D model 1 in the line-of-sight direction can be seen, that is, displayed. For example, the attribute arrangement plane 212 is set at a position 60 mm from the outer shape of the front face 201 in the front view of the 3D model 1. (FIG. 7) However, here, as for the projection view by the so-called trigonometry (front view, plan view, left and right side views, bottom view, back view), if the line of sight is located outside the 3D model 1 In any position, the display contents are not related.

The position of the viewpoint coincides with the display center of the display device 204 when displaying the 3D model 1 and the attribute information added to the 3D model 1.

Next, the direction of the normal line is made to match the direction of the line of sight when the 3D model 1 and the attribute information added to the 3D model 1 are displayed from the viewpoint position.

The magnification refers to a magnification at which a 3D model shape in a (virtual) three-dimensional space is displayed on the display device 204.

The position of the viewpoint, the direction of the line of sight, and the magnification, which are parameters of the attribute arrangement plane, can be changed at any time.

For example, in FIG. 7, the attribute arrangement plane 2 is orthogonal to the plane 201a in the plan view shown in FIG. 25 and the direction from the outside to the inside of the 3D model is the line of sight.
11 is defined. The viewpoint position and the magnification are predetermined so that almost all of the shape of the 3D model 1 and the attribute information to be provided can be displayed on the display screen of the display device 204. For example,
In the present embodiment, the magnification is 1 ×, and the viewpoint position 201f is set substantially at the center of the plane 201a in the plan view (in FIG. 7, a two-dot chain line 201d is a rough outline of the front view projected on the attribute arrangement plane 211). State). Similarly, the attribute arrangement plane 21 in the viewing direction orthogonal to the surface 201c of the front view
2. An attribute arrangement plane 213 in the direction of the line of sight orthogonal to the surface 201b of the side view is also set.

In order to specify the position of each attribute arrangement plane,
The attribute arrangement plane is represented by a double square frame. In the present embodiment, a frame is used as a means for clearly indicating the position of the attribute arrangement plane. However, the present invention is not limited to this. The shape may be a polygon other than a square or a circle. (The attribute arrangement plane 211 is parallel to the upper surface 201a of the 3D model 1, the attribute arrangement plane 212 is parallel to the front surface 201b of the 3D model 1, and the attribute arrangement plane 213 is parallel to the side surface 201c of the 3D model 1. As described above, it is possible to set and display a name label representing the name of the attribute placement plane on the frame of the attribute placement plane. An example will be described.

FIG. 33 is an explanatory diagram showing a state where a name label is displayed on a frame set on the attribute arrangement plane. On the frame 401 of the attribute arrangement plane, the frame 4
A name label 402 representing the name of “01” is set and displayed. 403 is a 3D model. Name label 40
2 is displayed at a preset position on the attribute arrangement plane, its display position, the size of the name label display,
Settings such as colors and fonts can be arbitrarily changed. Further, by determining the display position in advance, it is possible to obtain an effect that the coordinate system in which the attribute arrangement plane is arranged can be visually recognized based on the display position of the display label.

The name label may be named in a front view, a plan view, or the like, or simply as a symbol such as A, B, or C. It is more preferable to determine the naming method for each type of projection view, sectional view, partial detail view, etc.

Further, in the case of a sectional view, a partial detailed view, or the like, if the attribute placement plane is created automatically according to a naming method decided in advance, the names will be duplicated. Such a trouble does not occur, and the load on the operator is further reduced.

Next, attribute information is input in association with each attribute placement plane set in step S123. FIG.
FIGS. 10A and 11A are diagrams showing a state in which attribute information is added to the 3D model in association with each of the attribute arrangement planes 211, 212, and 213. 9 (b) and FIG. 11 (b) show respective attribute arrangement planes 211,
3D model 1 and attribute information viewed from the viewpoint positions 212 and 213.

The size (the height of characters and symbols) of the attribute information associated with the attribute arrangement plane is changed according to the magnification of the attribute arrangement plane. The size (mm) of the attribute information is 3
It is defined as the size in the virtual three-dimensional space where the D model exists. (It is not the size when displayed on the display device 204.) Further, the association between the attribute arrangement plane and the attribute information may be performed after the input of the attribute information. For example, as shown in the flowchart of FIG. 13, a 3D model is created (step S13).
1) After inputting the attributes in step S132, step S132
At 133, attribute information is associated with a desired attribute arrangement plane. Further, if necessary, correction such as addition or deletion of attribute information associated with the attribute arrangement plane is performed.

When the attribute information is associated with another attribute placement plane, the size of the attribute information is changed in accordance with the magnification of the destination attribute placement plane.

The input of the attribute information may be performed in a state where the 3D model 1 is displayed in a two-dimensional manner by displaying from the line of sight defined by each attribute arrangement plane. 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.

Here, the frame setting means for setting a frame set so as to surround the arrangement range of the attribute information associated with the attribute arrangement plane will be described.

As described above, in FIG. 7, when an attribute placement plane corresponding to a projection view by trigonometry is set,
A rectangular frame 211a is set to surround the outer shape of the projected 3D model (S12 in FIG. 12).
2). Next, when the attribute information is input, if the attribute information is arranged outside the frame 211a, the size and shape of the frame 211a are set so that all the attribute information is arranged inside the frame 211a. It is changed (S124 in FIG. 12). This change is performed by detecting the coordinate position of the arranged attribute information in the three-dimensional space and automatically changing the frame 211a outside the coordinate position with the viewpoint position of the attribute arrangement plane as the center. Is what is done. In this case, it goes without saying that the change is made by the CPU device or the like. Alternatively, the operator may manually change the attribute information so that all the attribute information is arranged in the frame 211a.

Next, the case where the attribute information of the 3D model 1 is viewed will be described. By selecting a desired attribute placement plane in step S141 in FIG. 14, the shape of the 3D model 1 is assigned in association with the attribute placement plane based on the attribute position plane viewpoint position, line-of-sight direction, and magnification selected in step S142. The displayed attribute information is displayed. For example, when the attribute placement plane 211, the attribute placement plane 212, or the attribute placement plane 213 is selected, FIG. 9 or FIG. 10A or FIG. 11B is displayed, respectively. At this time, the attribute information is arranged facing the line of sight of each attribute arrangement plane. Further, all the attribute information associated with each attribute arrangement plane is arranged in each frame. This makes it very easy and easy to see two-dimensionally on the display screen. In addition, as described later, a technician or the like other than the operator who has input the attribute information only needs to look at each of the frames when viewing the attribute information. This means that an extremely large three-dimensional space is 3D-
When the attribute information is set on the CAD, the operation of checking whether the attribute information is out of the frame is completely unnecessary, and an efficient operation can be performed.

Next, an example will be described in which an attribute arrangement plane can be easily selected. First, a method is conceivable in which a frame of an attribute arrangement plane of a selectable 3D model is displayed, and the operator selects an attribute arrangement plane using an input device such as a pointing device such as a mouse. (FIG. 7) Next, a method of displaying the names of selectable attribute arrangement planes in a list format and selecting from the list is also conceivable. (Not shown) Further, the image viewed from the line of sight of the attribute arrangement plane (FIG. 9 or FIG. 10A or FIG. 11B) is displayed as an icon as a thumbnail image and selected. A method is also conceivable. (FIG. 27)

(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 attribute arrangement plane, 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 attribute arrangement plane.

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 the search result and associating the group with an arbitrary attribute arrangement plane. Further, by making a correction such as addition or deletion of the attribute information to the group, the attribute information associated with the attribute arrangement plane can be operated.

That is, a 3D model is generated (step S1).
51) Input attribute information (step S152), 3D
The viewpoint position, line-of-sight direction, and magnification of the attribute arrangement plane are set for the model (step S153). Then, the attribute information input in step S152 is grouped, and the set attribute arrangement plane is set in association with the grouped attribute information (step S154).

When displaying, as shown in FIG. 16, an attribute placement plane is selected (step S161), and the attribute information associated with the selected attribute placement plane is displayed at the viewpoint position of the attribute placement plane, The information is displayed on the display device 204 according to the information on the line-of-sight direction and the magnification (step S16).
2) It is.

(Setting of a Plurality of Attribute Placement Planes) Next, a case of setting a plurality of attribute placement planes for the same line of sight will be described (the plurality of attribute placement planes are parallel to each other).

FIG. 17 is a flowchart showing a processing operation when a plurality of attribute arrangement planes are set for the same line-of-sight direction. FIG. FIG. 9 is a diagram illustrating a 3D model when an attribute arrangement plane is set.

A case in which a plurality of attribute arrangement planes are set in the 3D model 1 shown in FIG. 7 so that the projection direction of the front view and the line of sight coincide with each other will be described.

As described above, the 3D model 1 is created (step S171), and in step S172, an attribute arrangement plane 212 (viewpoint position, line-of-sight direction, magnification), which is the first attribute arrangement plane, is set. The line of sight of the attribute arrangement plane 212 is orthogonal to the plane 201b of the front view, the magnification is, for example, 1 and the viewpoint position is a position 30 mm from the outer shape of the front view, and is substantially at the center of the surface 201b of the front view.

Then, in step S173, the attribute information as shown in FIG. 10A is input in association with the attribute arrangement plane 212, and when viewed from the line of sight of the attribute arrangement plane 212, as shown in FIG. ), It can be seen very easily and easily in two dimensions.

Next, in step 174, an attribute arrangement plane 214 (viewpoint position, line-of-sight direction, magnification), which is a second attribute arrangement plane, is set. The line of sight of the attribute arrangement plane 214 is parallel to the plane 201b of the front view, and the magnification is, for example, 1
The viewpoint position is set so as to include the center axis of the hole of the attribute arrangement plane 3D model.

The attribute arrangement plane 214 is represented by a square painted shape. At this time, the 3D model 1 viewed from the attribute arrangement plane 214 has a cross-sectional shape of the 3D model 1 cut by the virtual plane 214 as shown in FIG. Attribute information (for example, hole size 12 ± 0.1 in FIG. 19B) is input in association with the attribute arrangement plane 214. When the attribute placement plane 214 is selected, the section shape of the 3D model 1 and the attribute information associated with the attribute placement plane are displayed (FIG. 19B). Also in this case, the attribute information is arranged in the frame 214a of the attribute arrangement plane 214.

Further, if the 3D model 1 is moved, rotated, or the like, three-dimensional display can be performed as shown in FIG.

That is, when the attribute placement plane 214 is selected, the 3D model existing in the line-of-sight direction of the attribute placement plane 214 and the attribute information associated with the attribute placement plane existing in the same line-of-sight direction area are displayed. ((B) of FIG. 18)
3) The 3D model shape and attribute information of the area are not displayed.

According to the present embodiment, not only the attribute information on the outer shape but also the attribute information on the cross-sectional shape in the same line of sight can be handled. As a result, the attribute information can be input and displayed while looking at the cross-sectional shape, so that the point indicated by the attribute information can be easily and immediately understood.

Further, a configuration having a plurality of attribute arrangement planes in which the shape of the 3D model 1 looks the same may be adopted. FIG.
2 shows an attribute arrangement plane 215 and an attribute arrangement plane 216 having the same line-of-sight direction. In this example, the attribute placement plane 215 and the attribute placement plane 216 face the plan view of the 3D model 1. By associating the attribute information with each attribute arrangement plane, for example, by grouping and associating them, more easily viewable attribute information can be realized. For example, FIG. 21 is a plan view of the 3D model 1, in which attribute information relating to external dimensions is grouped. FIG.
Is a grouping of the attribute information related to the hole position and the hole shape in the above. The grouped attribute information is stored in the attribute placement plane 215 and the attribute placement plane 21 respectively.
6. By grouping the related attribute information in this way and assigning it to the attribute placement plane, the related attribute information can be more easily viewed.

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

In order to express the 3D model and the attribute information 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 pieces of attribute information of a 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.

One of the merits of the 3D model is that the 3D model can be three-dimensionally expressed in a form close to the real thing on the display screen. 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 (which was mainly performed in the mind of the operator), 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 stereoscopic display so as not to impair the advantage of the 3D model that it can be three-dimensionally expressed.

The points to be devised will be described with reference to FIG.

FIG. 28A is a perspective view of the 3D model 2 used for description, FIG. 28B is a plan view of the 3D model 2, and FIG. 28C is an attribute without devising the 3D model 2. FIG. 28D 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. 28B shows a state displayed from the viewpoint of the attribute arrangement plane 218.

As for the input of the attribute information, when the arrangement planes of the plurality of attribute information are alternately arranged as shown in FIG. 28C, the attribute information overlaps and it becomes difficult to determine the content of the attribute information. As shown in FIG. 28C, even if the attribute information is small, it is difficult to see the attribute information. Therefore, it can be easily imagined that if the shape is more complicated, the attribute information is no longer useful information and the drawing cannot be realized in a perspective state.

However, by arranging the attribute information in the same plane as shown in FIG. 28 (d), the attribute information does not overlap each other, and the two-dimensional drawing expression (FIG. 28 (b)) Equivalently, it is easy to determine the attribute information.

In this way, in the drawing form (three-dimensional drawing) in which attribute information is added to the 3D model, not only the representation of the two-dimensional drawing but also the three-dimensional representation which is an advantage of the 3D model. 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, the 3D model has a simple shape. However, when dealing with 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.

It is conceivable that a plurality of attribute placement planes and attribute information associated therewith are simultaneously displayed, and then a desired attribute placement 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 is far from each other, 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. 20, 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. 23 is a view showing a state in which a part of the 3D model 1 is enlarged and displayed. For example, as shown in FIG. 23A, by setting an attribute arrangement plane 217 in which the line-of-sight direction is directed to the plan view, the viewpoint position is near the corner, and the magnification is, for example, 5 times, for the 3D model 1, The step-like shape and the attribute information can be displayed in a very easy-to-understand manner (FIG. 23).
(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, regardless of the hardware constituting the 3D-CAD apparatus or the method of constructing the 3D shape model, 3D-CAD in general, and 2D-CA in general
Effective for D.

(Magnification and Size of Attribute Information) Next, the size of the attribute information (the height of characters and symbols) associated with the attribute arrangement plane for explaining the magnification and the size of the attribute information
Is changed according to the magnification of the attribute arrangement plane (FIG. 23B).

The size (mm) of the attribute information is defined as the size in the virtual three-dimensional space where the 3D model exists (not the size when displayed on the display device 204).

For example, the size of the attribute information is 3 mm on the attribute arrangement plane 211 (magnification 1). FIG. 23C shows an example in which the character height is similarly set to 3 mm on the attribute arrangement plane 217 (magnification 5).

Since the attribute information associated with the attribute arrangement plane 217 is displayed at a display magnification of 5 times, its size is 1
5 mm.

In FIGS. 23B and 23C, a square line indicates a displayable range on the display device 204.

When the attribute information is arranged so as not to overlap,
Since the position of the attribute information is separated from the 3D model, it is difficult to understand the relationship between the shape and the attribute information related to the shape, and there is a possibility of misreading. Also, if there is much attribute information to be displayed, all the attribute information cannot be displayed on the display device 204, and it is troublesome to change the display range in order to see the attribute information outside the displayable range.

When it is desired to display a reduced image (the magnification is 1)
If the character size is not changed to (less than), the display size of the attribute information on the display device 204 is reduced in the reduced view display state, and the content of the attribute information cannot be determined.

Therefore, in consideration of the time when the attribute information is displayed, it is desirable to change the size of the attribute information according to the magnification.

For this reason, it is preferable that the magnification and the size of the attribute information be approximately inversely proportional. As an example, when the magnification of the attribute placement plane 211 is 1 and the size of the attribute information is 3, the size of the attribute information associated with the attribute placement plane 217 is 0.6 mm.

As described above, the attribute information is associated with the attribute arrangement plane. However, in a 3D model having a complicated shape, naturally, there is a large amount of attribute information, and a large number of associated attribute arrangement planes are set. Become. In this case, the frame of the attribute arrangement plane displayed on the display device or the name label displayed on the frame overlaps with each other, and it may be difficult to visually recognize the existence thereof.

Therefore, in the present invention, when there are a large number of attribute placement planes as described above, the setting of the frame is changed so as to avoid overlapping of the frame or the name label. An example will be described.

(Method of Changing Setting of Attribute Placement Plane Frame) A method of changing the setting of the attribute placement plane frame will be described below.

FIG. 34 is an explanatory diagram showing a state in which a plurality of attribute placement planes (four in this case) are set in the 3D model. FIG. 35 is an explanatory diagram in which the 3D model is rotated from the state of FIG. 34 and viewed from a direction perpendicular to the surface 300a of the 3D model. FIG. 36 is an explanatory diagram showing a state in which the frame setting has been changed from the state of FIG. In these drawings, the attribute information associated with the attribute placement plane is omitted, and the 3D model is a simple rectangular parallelepiped. FIG. 37 is a flowchart showing the procedure for changing the frame settings.

In the figure, reference numeral 300 denotes a 3D model,
Reference numerals 301, 302, 303, and 304 denote frames set as attribute placement planes. Frame 301 is 3D model 3
It is a frame of an attribute arrangement plane having a line of sight in a Z1 direction that is a direction orthogonal to the plane 300a of the 00. Frame 3
Reference numerals 02 and 303 denote attribute arrangement plane frames which are set in the same line-of-sight direction in parallel with the frame 301. Each attribute arrangement plane is a 3D model 300.
, That is, a frame of an attribute arrangement plane for representing the cross-sectional shape of the 3D model 300. Frame 30
4 is parallel to the frame 301 and the frame 30
7 is a frame of an attribute arrangement plane set in a line of sight direction opposite to 1. Also, 301a, 302a, 303a, 3
04a is a name label indicating the name of each attribute arrangement plane.

When the 3D model 300 is rotated from the state shown in FIG. 34 so that the surface 300a faces the operator's line of sight, the frames 301 and 3 shown in FIG.
02, 303, and 304 overlap, and the operator cannot recognize the name labels 302a, 303a, and 304a other than the name label 301a of the frame 301 arranged on the front side. Even if the display of the frame is made translucent, it is difficult to recognize the order in which the frames are arranged, and if the display positions of the name labels are the same, the characters will overlap, making it difficult to read. It is.

Therefore, in the present embodiment, when such a state occurs, the frame area is changed.

The operation will be described below with reference to the flowchart (FIG. 37).

First, in step S501, it is determined whether or not the frame setting needs to be changed. This determination may be made in advance by setting conditions that require a setting change, such as the degree of overlap of the name labels, and by automatically collating the conditions with the conditions, or when the operator determines that it is necessary. The change may be performed.

If it is determined in step S501 that no setting change is necessary, the process ends.

If it is determined in step S501 that the setting needs to be changed, a frame serving as a reference for changing the setting is selected in step S502. It is desirable that the reference frame be the frame located closest to the display side of the display device. However, if the selection reference can be changed, it can be arbitrarily selected.

In step S503, a frame to be changed is extracted. As an example of the extraction, there is a method of extracting a frame of an attribute arrangement plane set in parallel to a reference attribute arrangement plane, and a method of extracting a frame set in a certain angle range, The operator may arbitrarily select. Note that the order of step S502 and step S503 may be reversed.

In step S504, the setting of the frame is changed so that the label of the frame does not overlap. As an example of the setting change, the area of the reference frame arranged on the front side on the display screen is fixed, and the vertex closest to the position where the name label is arranged among the four vertices of the frame is fixed. Are fixed so that the vertices 302b, 303b, and 304b of the frames 302, 303, and 304 corresponding to the diagonal vertices 301b of the frames 302, 303, and 304 are similar to the reference frame.
3. The area of 304 is enlarged. At this time, by expanding the frame in order from the near side on the display screen to a position where the name labels do not overlap, it is possible to visually recognize the arrangement order of the frames in the depth direction on the display screen. Further, by changing the display color of the display label set in the direction opposite to the attribute arrangement plane on which the line of sight becomes the reference, the line of sight can be visually recognized. The method of changing the setting in step S504 is not limited to this, and for example, the entire frame may be enlarged to change to a slightly larger rectangular frame.

In step S505, it is checked whether or not all the frames displayed on the display device before the change fit within the display screen, and it is determined whether or not the display magnification needs to be changed. If all the frames are within the display screen due to the enlargement of the frames, display is performed on the display device in step S507, and the process ends. If all the frames are not in the display screen, the display magnification is changed (in this case, the magnification is reduced) in step S506, and the display is displayed on the display device in step S507. At this time, the change of the display magnification may be set to be performed automatically, or only the notification may be performed when the display magnification does not enter the display screen, and whether or not to change the display magnification may be determined by the operator. In addition, whether to change the display magnification may be arbitrarily set in advance. When the setting change process is completed, the display changes to the state shown in FIG.

(Selection of a 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 placement plane, the number of the attribute placement planes to be selected is only one. However, in view of the object of the present invention, a plurality of attribute placement planes are selected. There is no problem even if you select the placement plane.

However, when a single attribute placement plane is selected, 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 viewpoint position, the line-of-sight direction, 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. 25, rules are provided for the arrangement of the views (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 form 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. 9 and 10)
(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 the plan view, the front view, and the side view are displayed, the horizontal direction or the vertical direction of the attribute arrangement plane (the 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, it can be said that all of (a), (b), (c), (d), and (e) shown in FIG. 29 are 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 situation, the display as viewed from each line of sight must apply a rule such as a two-dimensional drawing.

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

FIG. 30 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 placement plane, the display position of the 3D model and attribute information to be displayed by selecting the attribute placement plane is uniquely determined.

When creating another attribute placement plane, the horizontal direction (or the vertical direction) may be designated while observing the relationship between the already created attribute placement plane and the viewing direction.

(Method of Displaying Attribute Information) Next, a method of displaying 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 arrangement plane is selected, and then the attribute associated with the attribute arrangement plane is selected. The information is appropriately displayed. 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 arrangement plane with which the attribute information is associated is selected. , Gaze direction,
A method of displaying the 3D model and the attribute information at the magnification is also effective.

FIG. 31 (displayed from selection of attribute information) is a flowchart showing a series of processing operations.

With the 3D model and the attribute information of the plan view of FIG. 8 displayed, a hole diameter φ12 ± 0.2 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, the selection of the attribute placement plane or the selection of the attribute information is performed. 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 setting 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. 32 (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).

[0179] The information associated with the selected geometric information
The attribute information is displayed (step 322).

If a plurality of attribute information items are associated, 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, related attribute information can be searched and displayed using the geometrical 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 at 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) Here, 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, an operator who is a product / unit / parts design engineer or a design designer who has created a 3D model creates a 3D model by himself / herself as 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.

Also 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 gives information necessary for the 3D model 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, an operator who manufactures and manufactures a product / unit / part can be used. 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 the production and production 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 display for inspecting the position becomes clear.

That is, the order of inspection, the inspection position, the inspection items, 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, it is possible to see only the information associated with the line of sight, and it is possible to easily know necessary information.

Also, a large amount of attribute information in the same line of sight
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 according to 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 the attribute arrangement plane and to see only the information associated with the attribute arrangement plane, so that the 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. .

(Second Embodiment) In the above embodiment, the frame setting means for setting a frame set so as to surround the arrangement range of the attribute information associated with the attribute arrangement plane has been described. An object of the present embodiment is to set first frame setting means for setting a first frame set so as to surround an arrangement range of attribute information associated with the attribute arrangement plane, and to determine existence of the attribute arrangement plane. This can also be realized by the second frame setting means for setting the second frame to be notified. This will be described below.

FIG. 38 shows a simple 3D model 1001 for explanation. The 3D model 1001 has a rectangular parallelepiped shape, and has a hole 1001a which is extremely small on one surface as compared with the outer shape. As can be seen from FIG. 38, the shape of the hole 1001a is extremely difficult to determine when the entire outer shape can be seen. The situation as shown in FIG. 38 is not special, but occurs very frequently in so-called exterior parts, cases or chassis of industrial products having relatively large shapes. That is, in the parts as described above, even if there is no fine shape in the appearance part,
The shape part having the function of the inner part or the attachment part with other parts has a shape part smaller than the whole outer shape.

In such a case, it is necessary to inform the operator of the existence of the shape portion to which the attribute information such as the dimension is added, and indicates the existence of the attribute arrangement plane associated with the added attribute information. A second frame is displayed. The second frame is typically preferably rectangular in shape, but is not limited to this, and may be any shape that can indicate the existence of an attribute arrangement plane such as a polygon, a circle, an ellipse, and an oval. , Any shape. The setting of the second frame is performed by specifying two points on the diagonal of the rectangle, specifying the center point of the rectangle and inputting the width and height, and inputting the center and radius of the circle. It is done in a well-known way to indicate and enter. Needless to say, the setting and display of the second frame are performed by the CPU device, the internal storage device, the input device, and the display device.

FIG. 39 shows a typical situation of the second frame. Second frame 1002 indicating the existence of an attribute arrangement plane corresponding to the plan view of 3D model 1001, and second frame 100 indicating the existence of an attribute arrangement plane corresponding to the front view
3 and a second frame 1004 indicating the presence of an attribute arrangement plane corresponding to the cross-sectional view of the hole 1001a.

[0212] Each attribute arrangement plane is associated with necessary attribute information. The attribute arrangement plane corresponding to the sectional view of the hole 1001a having the frame 1004 is associated with the four dimensions shown in FIG. In this case, as shown in FIG. 40, the size of the attribute information is set such that when the hole portion 1001a is displayed on the monitor screen 10086 at an appropriate easy-to-see display magnification, the size becomes appropriate and easy to see. Conversely, when such attribute information is displayed as shown in FIG. 38, it cannot be determined at all. When the 3D model has a complicated shape, it is difficult to determine the presence or absence of the attribute information of the fine shape portion. However, the presence of the attribute information can be quickly known from the second frame, and the efficiency is high. Various operations can be performed.

Further, in the present embodiment, a first frame for notifying the arrangement range of the attribute information associated with the attribute arrangement plane can be set. In FIG. 40, the shape of the hole 1001a and four dimensions are included.
A first frame 1005 is set for the attribute arrangement plane. The shape, setting, and display of the first frame 1005 are the same as those of the second frame.

Since all the attribute information associated with the attribute arrangement plane is arranged inside the first frame 1005, the operator only needs to look at the attribute information or the shape inside the first frame 1005. This means that if it is necessary to view a small shape portion as shown in FIG. 40 with an increased display magnification, and if there is no first frame 1005 indicating the arrangement range of the attribute information, the operator Means that the presence or absence of attribute information must be checked for the entire 3D model corresponding to the cross-sectional view cut by the virtual plane having the second frame 1004. This means that it is necessary to look at the entire cross section where only the hole 1001a in the cross sectional view should be viewed, which significantly impairs the work efficiency.
Also, if there is no second frame 1004 indicating the existence of the attribute arrangement plane with which the attribute information is associated,
The operator needs to find the first frame 1005 which is smaller than the second frame 1004, which impairs the work efficiency. Furthermore, when the 3D model has a complicated shape, the first frame 1005 cannot be searched for, or the presence of the first frame 1005 is not noticed, which may cause a serious problem in various operations.

According to the present embodiment, the existence of the attribute arrangement plane can be easily known in the second frame, and necessary information can be very easily diagnosed within the necessary range in the first frame.
Extremely efficient work can be realized.

Further, a process as shown in FIG. 41 may be performed on the second frame of the present embodiment in order to clearly indicate the position of the first frame.

In FIG. 41, the second frame 1004
And the corresponding four vertices of the first frame 1005
By connecting the two vertices with a line, the position of the first frame 1005 can be specified with respect to the second frame 1004. By clearly indicating the position of the first frame 1005, the first frame 1005 can be more easily selected, and more efficient work can be performed.

In the above, the second frame 1002,
When the frame 1003 surrounds the entire outer shape and represents the outer dimensions and the like in the same manner as the frames 211a, 212a, and 213aa in FIGS. 9 to 11 of the above-described embodiment, the first frame corresponding to the second frames 1002 and 1003 The frame may be omitted, and the frames 1002 and 1003 may be configured to serve as the first frame and the second frame.

A flowchart for the above contents is shown in FIG.
Shown in After creating the 3D model in S1001, S1
In step 002, an attribute placement plane is set, and a second frame for notifying the existence of the attribute placement plane is set.
In step S1003, a first frame for notifying the arrangement range of the attribute information is set as necessary. If the first frame is not required, the second frame also serves as the first frame. Thereafter, in S1004, attribute information is input in association with the attribute arrangement plane, and in S1005, the attribute information is the first frame or the first and second frames.
If they are arranged outside the range of the frame, the size of the first frame or the first and second frames is changed.

In the present embodiment, a first frame setting means for setting a first frame set so as to surround the arrangement range of the attribute information associated with the attribute arrangement plane, A second frame setting means for setting a second frame indicating presence,
The attribute information added to the D model can be displayed and viewed easily and easily and efficiently.

(Other Embodiments) Regarding the setting of the first frame set so as to surround the arrangement range of the attribute information associated with the attribute arrangement plane and the setting of the second frame indicating the existence of the attribute arrangement plane Next, other embodiments will be described.

As described in the second embodiment,
The present invention is not limited only when the second frame also serves as the first frame or when the first frame is set as a part of the second frame. Are set such that the first frame surrounds the arrangement range of the attribute information associated with the attribute arrangement plane, and the second frame determines the existence of the attribute arrangement plane. The present invention can be applied to any configuration that can achieve the purpose of informing.

For example, as shown in FIG. 43, the second frames 1013 and 1014 in the same line of sight on the attribute placement plane
However, the size may be smaller than the shape of the 3D model, and may be arranged in the same shape in the same viewing direction. In this case, the first frame 1011 is larger than the second frame 1013 or the first frame 1011
12 and the second frame 1014 have different positions on the attribute arrangement plane. In this case, when performing two-dimensional display as described in the first embodiment, the display center is set to the first frame 1011,
1012.

The association between the first frame and the second frame is not limited to connecting the corresponding vertices of the second embodiment with a line, but the first frame and the second frame are associated with each other. The method is not limited as long as the operator can understand that the frame is related. For example, the first frame and the second frame may have different configurations or different line types, and the first frame and the second frame having the same color may be associated with each other.

Display of a first frame and a second frame,
It is preferable that the non-display can be set independently.
For example, the operator displays only the second frame, finds a desired frame, displays the first frame, and displays the two-dimensionally based on the first frame.
View attribute information. At this time, the second frame is unnecessary, and may be hidden.

[0226]

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 showing a processing operation when setting a plurality of attribute arrangement planes in a 3D model.

FIG. 18 is a diagram illustrating a state where a plurality of attribute arrangement planes are set in the 3D model.

FIG. 19 is a diagram showing a 3D model viewed from the attribute arrangement plane 214 in FIG. 19;

FIG. 20 is a diagram illustrating a state in which a 3D model and a plurality of attribute arrangement planes are set.

FIG. 21 is a diagram showing a 3D model as viewed from the attribute arrangement plane 215 shown in FIG.

FIG. 22 is a diagram showing a 3D model viewed from the attribute arrangement plane 216 shown in FIG.

FIG. 23 is a diagram showing a case where an attribute arrangement plane is assigned to a part of the 3D model.

FIG. 24 is a diagram illustrating an example of a 3D model.

25 is a front view, a plan view, and a side view of the 3D model shown in FIG. 24.

FIG. 26 is a diagram illustrating a state where attribute information is added to the 3D model illustrated in FIG. 24;

FIG. 27 is a diagram illustrating a state where display contents viewed from each attribute arrangement plane are iconified.

FIG. 28 is a diagram illustrating an example of a 3D model.

FIG. 29 is a diagram illustrating a state in which a 3D model and attribute information are two-dimensionally represented.

FIG. 30 is a flowchart illustrating a processing operation of setting a display direction of an attribute arrangement plane.

FIG. 31 is a flowchart when a 3D model is displayed using attribute information as a key.

FIG. 32 is a flowchart when a 3D model is displayed using geometric information as a key.

FIG. 33 is an explanatory diagram showing a state in which a name label is displayed on a frame set on the attribute arrangement plane.

FIG. 34 is an explanatory diagram showing a state in which a plurality of attribute arrangement planes are set in the 3D model.

FIG. 35 is an explanatory diagram showing a state where the 3D model is rotated from the state of FIG. 34;

FIG. 36 is a diagram illustrating a state in which a frame setting has been changed from the state in FIG. 35;

FIG. 37 is a flowchart showing a procedure for changing frame settings.

FIG. 38 is a diagram illustrating a 3D model and attribute information according to the second embodiment.

FIG. 39 is a diagram illustrating a 3D model, attribute information, and a second frame according to the second embodiment.

FIG. 40 is a diagram illustrating a cross section of a hole according to the second embodiment.

FIG. 41 is a diagram illustrating a relationship between a first frame and a second frame according to the second embodiment.

FIG. 42 is a flowchart showing a processing operation when setting a first frame and a second frame of an attribute arrangement plane in a 3D model.

FIG. 43 relates to a first frame and a second frame.
FIG. 14 is a diagram illustrating another embodiment.

[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 211, 212, 213, 214, 215, 216, 2
17 Attribute placement plane 1005, 1011, 1012 First frame of attribute placement plane 1002, 1003, 1004, 1013, 1014
Second frame of attribute placement plane

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Kazumaro Shimizu 3-30-2 Shimomaruko, Ota-ku, Tokyo Inside Canon Inc. (72) Inventor Toshiyuki Machiro 3-30-2 Shimomaruko, Ota-ku, Tokyo (72) Inventor Masaya Morioka 3-30-2 Shimomaruko, Ota-ku, Tokyo In-house Canon (72) Inventor Hiroshi Takada 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon stock F term in the company (reference) 5B046 AA05 DA09 DA10 FA02 FA09 HA03

Claims (5)

[Claims] An attribute input unit for inputting attribute information for a 3D model; an attribute arrangement plane setting unit for setting an attribute arrangement plane which is a virtual plane with which the attribute information is associated; Storage means for storing information in association with each other; and first frame setting means for setting a first frame set so as to surround a range of the attribute information associated with the attribute arrangement plane. Information processing device. 2. A second device for notifying the existence of the attribute arrangement plane.
2. The information processing apparatus according to claim 1, further comprising a second frame setting unit that sets the frame. 3. An attribute input step of inputting attribute information for the 3D model; an attribute arrangement plane setting step of setting an attribute arrangement plane that is a virtual plane with which the attribute information is associated; A storage step of storing information in association with each other; and a first frame setting step of setting a first frame set so as to surround a range of the attribute information associated with the attribute arrangement plane. Information processing method. 4. A second device for notifying the existence of the attribute arrangement plane.
4. The information processing method according to claim 3, further comprising a second frame setting step of setting the first frame. 5. A program for realizing the information processing method according to claim 3. Description: