JP2004192035A - Information processing apparatus and method - Google Patents

Abstract

An object of the present invention is to improve visibility of a 3D drawing.
A 3D note to be added to a 3D model is divided into an indicating element and a leader line, and when associating the 3D note with an attribute arrangement plane, the indicating element portion is fixed at a previously arranged position, and the drawing is performed. Place the line on the attribute placement plane. At this time, the lead line and the pointing element are connected by the auxiliary lead line.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
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 using 3D-CAD.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in product design, it is widely used to design a product having a three-dimensional shape (hereinafter, referred to as a part) such as a product or a part configuring the product using a CAD device (particularly, a 3D-CAD device). Widespread. The product designer inputs design / manufacturing information such as dimensions, dimensional tolerances, geometrical tolerances, notes, and symbols into CAD models (3D shapes or 2D drawings) as attribute information, and converts design information and design intentions into manufacturing processes. To downstream processes.
[0003]
In order to input attribute information to the 3D model, it is performed by specifying and selecting a surface, a ridge line, a center line, a vertex, or the like of the 3D model. 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 includes dimensions (distance (length, width, thickness, etc.), angles, hole diameters, radii, chamfers, etc.), dimension tolerance planes associated with the dimensions, ridge lines, etc. without inputting dimensions. Geometrical and dimensional tolerances are information that should be conveyed when processing and manufacturing parts, units, and products, and information that should be instructed.
[0004]
In the manufacturing department, necessary information is obtained as necessary for each department in charge, and parts are manufactured.
[0005]
[Problems to be solved by the invention]
The method of attaching attribute information to a 3D model as in the above conventional example has the following problems.
[0006]
Dimensions and dimensional tolerances, and dimension lines and dimension auxiliary lines for filling them are complicated, making not only difficult to see the shape and attribute information of the 3D model, but also the operator himself who inputs the attribute information. Is difficult to see, and input contents cannot be confirmed, that is, input of attribute information itself becomes difficult.
[0007]
In addition, it becomes extremely difficult to read related attribute information. In addition, the space occupied by the attribute information becomes larger than the 3D model, and it becomes impossible to simultaneously view the shape of the 3D model and the attribute information on a display screen having a limited size.
[0008]
In order to avoid such a state, a method has been proposed in which a virtual plane is set in the 3D model and attribute information is stored in association with the virtual plane.
[0009]
According to this method, attribute information added to a 3D drawing can be viewed like a 2D drawing, and visibility or operability at the time of input can be improved.
[0010]
However, in the above-described conventional example, in the case of so-called annotations such as text information, correspondence between the text information and the terminal symbols such as arrows and dots and leader lines are clearly indicated on 3D elements such as faces, edges and vertices of the 3D model. However, when associating text information with a virtual plane and viewing it in a 2D drawing-like manner, the terminal symbol may be inclined with respect to the virtual plane, and the visibility may be reduced. This can be avoided by arranging the terminal symbol on the virtual attribute arrangement plane. In this case, when viewing the 3D model in a 3D space instead of a 2D drawing-like, a note and a 3D element are used. Is difficult to understand.
[0011]
For this reason, the present invention enables efficient operation of attribute information such as notes added to a 3D model in 2D drawing-like and 3D space views without reducing visibility. It is intended to be.
[0012]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided 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 associated with the attribute information, A storage unit for storing the attribute information in association with an arrangement plane, a first end indicating a 3D element such as a face, a ridge line, or a vertex of the 3D model; a second end connected to the leader line; A terminal element comprising: a terminal element comprising the terminal element; and a lead line connected to a second end of the terminal element. The terminal element has attribute information specifying means for specifying a correspondence between the 3D model and attribute information. In a state where the attribute information is not arranged on the attribute arrangement plane, a first specification form for explicitly indicating the correspondence between the 3D model and the attribute information, and the attribute information is arranged on the attribute arrangement plane. In a state where is has been, which is the 3D model and selectively information processing apparatus capable of clearly one of the second explicit form demonstrates the correspondence between the attribute information.
[0013]
According to a second aspect of the present invention, in the first aspect, the terminal element is linearly connected to the lead line, and the attribute information is arranged in a 3D space. In the second explicit form, the second end of the terminal element and the leader line form an auxiliary leader line parallel to a normal direction of an attribute arrangement plane in which the attribute information is associated and arranged. The information processing apparatus according to the first aspect of the present invention, wherein the information processing apparatus is connected to the information processing apparatus via a line, and the lead line is arranged on the attribute arrangement plane.
[0014]
According to a third aspect of the present invention, when the 3D model is rotated from a state in which the attribute arrangement plane on which the attribute information is arranged is directly displayed, the first arrangement form is changed from the second explicit mode. The information processing apparatus according to the first and second inventions, further comprising switching means for switching to an explicit form, wherein the switching means can be arbitrarily set by an operator.
[0015]
According to a fourth aspect of the present invention, when the attribute information is arranged on the attribute arrangement plane, and in the second display mode, the arrangement of the attribute information on the attribute arrangement plane is changed, The terminal element and the lead line interlock so that a straight line connecting the first end and the second end of the terminal element is on the same straight line as the lead line when the arrangement plane is directly displayed. An information processing apparatus according to the first or second invention, characterized in that:
[0016]
In a fifth aspect according to the present invention, the attribute information is arranged on the attribute arrangement plane, and the first end of the terminal element is rearranged on a corresponding 3D element in the second display mode. In this case, when the attribute placement plane is displayed facing up, the terminal element to be rearranged and the lead line connected to the terminal element are rearranged while maintaining a state of being arranged on the same straight line. An information processing apparatus according to the first and second inventions.
[0017]
According to a sixth aspect of the present invention, when the 3D model includes a plurality of attribute placement planes, one of the first and second explicit forms can be selected for each of the plurality of attribute placement planes. An information processing apparatus according to the first to fifth aspects.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described in detail with reference to the drawings.
[0019]
(Overall flow of mold production)
FIG. 1 is a diagram showing an overall flow when the present invention is applied to production of a mold part mold.
[0020]
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. The design drawing of the part is created by 2D-CAD or 3D-CAD, and the drawing created by 3D-CAD (3D drawing) 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.
[0021]
In step S102, a study of manufacturability such as assembling and molding of a product is performed, and a process diagram for each component is created. The part process drawing includes detailed inspection instructions in addition to information necessary for part production. The process drawing of the part is created by 2D-CAD or 3D-CAD.
[0022]
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.
[0023]
Detailed inspection instruction information can be associated with dimensional tolerances on CAD.
[0024]
In step S103, a mold is designed based on the process drawing (process drawing, mold specification) of the component created in step S102, and a mold drawing is created. The mold drawing includes information and constraints necessary for mold production. A mold drawing is created by 2D-CAD or 3D-CAD, and a mold drawing (3D drawing) created by 3D-CAD includes attribute information such as shape and dimensional tolerance.
[0025]
In step S104, the mold manufacturing process is examined based on the mold drawing created in step S103, and a mold process drawing is created. The mold processing step includes NC processing and general-purpose processing. For the process 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.
[0026]
In step S105, an NC program is created based on the mold drawing.
[0027]
In step S106, a mold part is manufactured using a machine tool or the like.
[0028]
In step S107, the manufactured mold component is inspected based on the information created in step S103.
[0029]
In step S108, the mold parts are assembled and molded.
[0030]
In step S109, the molded part is inspected based on the information created in steps S101 and S102. If OK, the process ends.
[0031]
In step S110, the mold of the molded product at the location where the accuracy is insufficient is corrected based on the result of the inspection in step S109.
[0032]
(Product design)
Next, a procedure for designing a product and creating a design drawing of each component will be described.
[0033]
The design drawing of the part is created by a 2D-CAD device or a 3D-CAD device.
[0034]
Here, the design of parts will be described using the information processing apparatus shown in FIG. 2, for example, a CAD apparatus.
[0035]
FIG. 2 is a block diagram of the CAD device. 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.
[0036]
Reference numeral 203 denotes a CPU device that executes processing in accordance with the instructions of the CAD program.
[0037]
Reference numeral 204 denotes a display device which displays a shape or the like in accordance with a command from the CPU device 203.
[0038]
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.
[0039]
Reference numeral 206 denotes an output device such as a printer that outputs a paper drawing or the like in accordance with an instruction from the CPU device 203.
[0040]
An external connection device 207 connects the CAD device to an external device, supplies data from the device to the external device, and controls the external device from the external device.
[0041]
FIG. 3 is a flowchart showing a processing operation of the CAD apparatus shown in FIG.
[0042]
First, when the operator instructs the activation of the CAD program by the input device 205, the CAD program stored in the external storage device 202 is read into the internal storage device 201, and the CAD program is executed on the CPU device 203 (step S301).
[0043]
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 with the input device 205, the shape model already created on the external storage device 202 can be read into the internal storage device 201 so that the CAD program can handle the shape model.
[0044]
The operator creates an attribute arrangement 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 placement plane is stored in the internal storage device 201 in association with the shape model.
[0045]
It is desirable to name the created attribute arrangement plane as needed. The name given to the attribute placement plane can be displayed as a name label at a predetermined position on the frame of the attribute placement plane.
[0046]
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.
[0047]
The operator associates the attribute information with the attribute placement plane using the input device 205 (step S305). The attribute information and the attribute placement plane are stored in the internal storage device 201. The operator may designate an attribute placement plane in advance, and perform attribute assignment while associating with the attribute placement 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.
[0048]
Next, the operator specifies display of the attribute placement plane and display / non-display of attribute information such as dimensional tolerance associated with the attribute placement plane by specifying the attribute placement plane by the input device 205, or display control such as coloring. Perform (Step S306).
[0049]
When the operator creates an attribute placement plane using the input device 205, the operator sets the position of the viewpoint, the line-of-sight direction, and the magnification of the attribute placement plane. By setting the attribute placement plane display information and designating the attribute placement plane, the shape model can be displayed with the set viewpoint position, viewing direction, and magnification. Further, 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 attribute arrangement plane display information is stored in the internal storage device 201.
[0050]
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, and the identifier can be added and stored in the external storage device 202. By using this identifier, attribute data can be associated with other data.
[0051]
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.
[0052]
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).
[0053]
Here, the shape model and the CAD attribute model will be described.
[0054]
FIG. 4 is a diagram illustrating an example of a shape model, which is SolidMderl. FIG. 5 is a conceptual diagram showing the relationship between the components constituting the shape model.
[0055]
As shown in the figure, SolidModel is an expression method for defining a shape of a part or the like in a three-dimensional space on CAD, and is composed of topology information (Topology) and geometric information (Geometry). As shown in FIG. 5, the phase information of the SolidModel is hierarchically stored on the internal storage device 201, and one or more Shells, one or more Faces for one Shell, and one or more Faces for one Shell And one or more Loops, one or more Edges for one Loop, and two Vertex for one Edge.
[0056]
In addition, Surface information representing a Face shape such as a plane or a cylindrical surface with respect to the Face is stored in the internal storage device 201 in association with each other. Curve information expressing the shape of the Edge, such as a straight line or an arc, is stored in the internal storage device 201 in association with the Edge. The coordinate values in the three-dimensional space are stored in the internal storage device 201 in association with the Vertex.
[0057]
Attribute information is stored in the internal storage device 201 in association with each phase element of Shell, Face, Loop, and Vertex.
[0058]
Here, an example of a storage method on the internal storage device 201 will be described using Face information as an example.
[0059]
FIG. 6 is a conceptual diagram showing a method of storing Face information on the internal storage device 201.
[0060]
As shown in the figure, the Face information includes a FaceID, a pointer to a LoopList that constitutes the Face, a pointer to Surface data representing the Face shape, and a pointer to attribute information.
[0061]
The LoopList stores the IDs of all the Loops constituting the Face in a list format. The Surface information includes a SurfaceType and a SurfaceParameter according to the SurfaceType. The attribute information includes an attribute type and an attribute value corresponding to the attribute type. The attribute value includes a pointer to Face, a pointer to an attribute placement plane to which the attribute belongs, and the like.
[0062]
(Input and display of attribute information to 3D model)
Further, input of attribute information to the 3D model, a method of creating an attribute arrangement plane, and display of the 3D model to which the attribute information is added will be described in detail.
[0063]
7 to 11 are diagrams showing a 3D model, attribute information, and an attribute arrangement plane, and FIGS. 12 to 14 are flowcharts showing processing operations when adding an attribute arrangement plane and attribute information to a 3D model. .
[0064]
In step S121 of FIG. 12, the 3D model 1 shown in FIG. 7 is created, and in step S122, a necessary attribute arrangement plane is set.
[0065]
属性 Attribute placement plane Here, the attribute placement plane defines requirements relating to the display of the 3D model 1 and the attribute information added to the 3D model 1.
[0066]
In the present invention, the attribute placement plane is defined by the position of one point (viewpoint, hereinafter referred to as a viewpoint) in the (virtual) three-dimensional space, the normal direction (viewing direction) of the plane to be created, and the 3D model 1, In addition, it also has information on the display magnification (hereinafter simply referred to as magnification) of the attribute information added to the 3D model 1.
[0067]
Here, the line-of-sight position defines a 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 of the front view of the 3D model 1 (FIG. 7).
[0068]
However, here, as for the projection view by the so-called trigonometric method (front view, plan view, left and right side view, bottom view, back view), any position as long as the line of sight is located outside the 3D model 1, But it has nothing to do with what is displayed.
[0069]
The position of the viewpoint is a point that 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.
[0070]
Next, the direction of the normal is made to coincide with the direction of the line of sight when displaying the 3D model 1 and the attribute information added to the 3D model 1 from the viewpoint position.
[0071]
The magnification is a magnification at which a 3D model shape in a (virtual) three-dimensional space is displayed on the display device 204.
[0072]
The position of the viewpoint, the line-of-sight direction, and the magnification, which are parameters of the attribute arrangement plane, can be changed at any time.
[0073]
For example, in FIG. 7, an attribute arrangement plane 211 that is orthogonal to the plane 201a in the plan view shown in FIG. 25 and whose direction from the outside to the inside of the 3D model is the line-of-sight direction is defined. The viewpoint position and the magnification are determined so that substantially the entire 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 indicates a state in which the approximate contour of the front view is projected on the attribute placement plane 211.) Similarly, the attribute placement plane 212 in the line of sight orthogonal to the surface 201c of the front view, and the side view of FIG. An attribute arrangement plane 213 in the line-of-sight direction orthogonal to the plane 201b is also set.
[0074]
In order to clearly indicate the position of each attribute placement plane, the attribute placement plane is represented by a square double 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, and the shape may be a polygon other than a square or a circle.
[0075]
Next, attribute information is input in association with each attribute placement plane set in step S123. 8A, FIG. 10A, and FIG. 11A are diagrams illustrating a state in which attribute information is added to the 3D model in association with the respective attribute placement planes 211, 212, and 213. 9 (b) and FIG. 11 (b) show the 3D model 1 and the attribute information as viewed from the viewpoint positions of the respective attribute arrangement planes 211, 212 and 213.
[0076]
The size of the attribute information (the height of characters and symbols) associated with the attribute placement plane is changed according to the magnification of the attribute placement plane. 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).
[0077]
The association between the attribute placement 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 S131), attributes are input in step S132, and attribute information is associated with a desired attribute arrangement plane in step S133. Further, if necessary, correction such as addition or deletion of attribute information associated with the attribute arrangement plane is performed.
[0078]
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.
[0079]
The input of the attribute information may be performed in a state where the 3D model 1 is displayed two-dimensionally and displayed from the line-of-sight direction 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 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.
[0080]
Next, a 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 of FIG. 14, the shape of the 3D model 1 is associated with the attribute placement plane based on the viewpoint position, line-of-sight direction, and magnification of the attribute placement plane selected in step S142. The assigned 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. This makes it very easy and easy to see two-dimensionally on the display screen.
[0081]
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).
[0082]
Next, a method of displaying the names of selectable attribute arrangement planes in a list format and selecting from them is also conceivable (not shown).
[0083]
Furthermore, a method of selecting an image in a state viewed from the line of sight of the attribute arrangement plane (FIG. 9 or FIG. 10A or FIG. 11B) as a thumbnail image by icon display is also conceivable. (FIG. 27).
[0084]
(Other input method of attribute information)
In the above-described input of the attribute information described with reference to FIGS. 11 to 14, the attribute information is associated with each attribute placement plane, but the associating means is not limited to the above. For example, the attribute information is grouped, The group may be associated with the attribute arrangement plane.
[0085]
This will be described with reference to the flowcharts shown in FIGS.
[0086]
The same results and effects as described above can be obtained by selectively grouping attribute information input in advance or based on a search result and associating the group with an arbitrary attribute placement plane. Further, by making a correction such as adding or deleting the attribute information to the group, the attribute information associated with the attribute placement plane can be operated.
[0087]
That is, a 3D model is generated (step S151), attribute information is input (step S152), and the viewpoint position, line-of-sight direction, and magnification of the attribute arrangement plane are set for the 3D 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).
[0088]
When performing display, 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 in the viewpoint position, line-of-sight direction, The information is displayed on the display device 204 according to the information on the magnification and the magnification (step S162).
[0089]
(Setting of multiple attribute placement planes)
Next, a case where a plurality of attribute placement planes are set for the same line-of-sight direction will be described (the plurality of attribute placement planes are parallel to each other).
[0090]
FIG. 17 is a flowchart showing a processing operation when a plurality of attribute arrangement planes are set for the same line of sight. FIG. 18A shows a plurality of attribute arrangement planes for the same line of sight. FIG. 6 is a diagram showing a 3D model when setting is performed.
[0091]
In the 3D model 1 shown in FIG. 7, a case will be described where a plurality of attribute arrangement planes are set such that the projection direction of the front view and the line of sight coincide.
[0092]
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 ×, 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.
[0093]
Then, in step S173, the attribute information as shown in FIG. 10A is input in association with the attribute arrangement plane 212, and as viewed from the line of sight of the attribute arrangement plane 212, as shown in FIG. In addition, it can be seen very easily and clearly in two dimensions.
[0094]
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 direction of the line of sight of the attribute placement plane 214 is parallel to the plane 201b of the front view, the magnification is, for example, 1 ×, and the viewpoint position is set to include the central axis of the hole of the attribute placement plane 3D model.
[0095]
Note that the attribute arrangement plane 214 is represented by a square painted shape.
[0096]
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.
[0097]
Attribute information (for example, the 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 sectional shape of the 3D model 1 and the attribute information associated with the attribute placement plane are displayed (FIG. 19B).
[0098]
Further, if the 3D model 1 is moved or rotated, a three-dimensional display can be performed as shown in FIG.
[0099]
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, and the opposite line-of-sight direction (FIG. (B)) The 3D model shape and attribute information of the area are not displayed.
[0100]
According to the present embodiment, it is possible to handle 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 direction. 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.
[0101]
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. 20 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. For example, by associating the attribute information with each of the attribute arrangement planes in a group, the attribute information can be more easily viewed. For example, FIG. 21 is a plan view of the 3D model 1 in which attribute information relating to external dimensions is grouped. FIG. 22 groups the attribute information relating to the hole position and the hole shape in the above. The grouped attribute information is associated with the attribute arrangement plane 215 and the attribute arrangement plane 216, respectively. 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.
[0102]
○ Position of attribute information In order to express the 3D model and the attribute information to be added to the 3D model on a display screen in a very easy-to-understand manner as a two-dimensional drawing, the operator appropriately selects a plurality of pieces of attribute information of a part of the 3D model to be expressed Group and associate with attribute placement plane. In the case of a two-dimensional drawing representation method, the position of the attribute information may be arranged in the area in the line-of-sight direction of the related attribute arrangement plane. In order to make full use of the merits of the 3D model, a device is required.
[0103]
One of the merits of the 3D model is that since it can be three-dimensionally represented on the display screen in a form close to the real thing, the operator who creates the model or the operator of the next process using the model (process designer, mold designer / manufacturer) , A measurer, etc.) can save the conversion work from two-dimensional to three-dimensional (which is mainly performed in the mind of the operator), which is necessary when handling a two-dimensional diagram. This conversion work largely depends on the ability of the operator, and in this conversion work, erroneous conversion due to erroneous conversion and loss of conversion time may occur.
[0104]
In the 3D drawing, it is necessary to devise the display of the attribute information (position of the attribute information) at the time of the three-dimensional display so as not to impair the merit of the 3D model, that is, the three-dimensional model.
[0105]
The devised point will be described with reference to FIG.
[0106]
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 a diagram in which attribute information is added to the 3D model 2 without devising it. FIG. 28 (d) is a perspective view illustrating a state in which attribute information is arranged, and the arrangement of attribute information is devised.
[0107]
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 in which the image is displayed from the viewpoint of the attribute arrangement plane 218.
[0108]
Regarding the input of the attribute information, if the arrangement surfaces 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. 28 (c), even if the attribute information is small, it is difficult to see. 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.
[0109]
However, by arranging the attribute information in the same plane as shown in FIG. 28D, the attribute information does not overlap each other, and the attribute information is equivalent to the two-dimensional drawing representation (FIG. 28B). Information can be easily determined.
[0110]
In this way, in the drawing form (three-dimensional drawing) in which the attribute information is added to the 3D model, not only the representation of the two-dimensional drawing, but also the three-dimensional model, which is an advantage of the 3D model, while the attribute information is expressed three-dimensionally Can be easily determined, and can be used as a three-dimensional drawing (3D drawing).
[0111]
It is desirable that the arrangement plane of the attribute information be the same plane as the attribute arrangement plane.
[0112]
In this example, the 3D model has a simple shape. However, when handling a 3D model having an actual more complicated shape, it is necessary to set a plurality of attribute placement planes in the same line of sight.
[0113]
Then, 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.
[0114]
At this time, if the arrangement plane of the attribute information and the position of the attribute arrangement plane are far apart, it becomes difficult to understand the relationship 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.
[0115]
Furthermore, 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 displaying a plurality of attribute placement planes and the attribute information associated therewith at the same time, if the attribute placement plane is created on the same plane, the placement plane of the attribute information will also be on the same plane. Even when viewed from an oblique direction, the pieces of attribute information overlap each other, making it difficult to see. In the first place, since there is much attribute information when viewed from the same direction, it is divided into a plurality of attribute arrangement planes, and when displaying the attribute information at the same time, it is inevitable that the attribute information overlaps.
[0116]
Even if it is not rescue that 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 distinguish the attribute information in a perspective state.
[0117]
(magnification)
Further, 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.
[0118]
FIG. 23 is a diagram illustrating a state in which a part of the 3D model 1 is enlarged and displayed. For example, as shown in FIG. 23 (a), by setting the attribute arrangement plane 217 in which the line of sight 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 attribute information can be displayed in an extremely easy-to-understand manner (FIG. 23B).
[0119]
In the present embodiment, the present invention is effective for 3D-CAD in general and 2D-CAD irrespective of the hardware configuring the 3D-CAD apparatus or the method of configuring the 3D shape model.
[0120]
O Magnification and size of attribute information The size of the attribute information (the height of characters and symbols) associated with the attribute arrangement plane is changed according to the magnification of the attribute arrangement plane (FIG. 23B). .
[0121]
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).
[0122]
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 displayed as 3 mm on the attribute arrangement plane 217 (magnification 5).
[0123]
Since the attribute information associated with the attribute arrangement plane 217 is displayed at a display magnification of 5 times, its size is 15 mm.
[0124]
In (b) and (c) of FIG. 23, a square line indicates a displayable range on the display device 204.
[0125]
If the attribute information is arranged so as not to overlap, the position of the attribute information is separated from the 3D model, so that it is difficult to understand the relationship between the shape and the attribute information related thereto, 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 the display range must be changed to see the attribute information outside the displayable range.
[0126]
If the size of the character is not changed when displaying in a reduced size (the magnification is less than 1), 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 is determined. become unable.
[0127]
Therefore, it is desirable to change the size of the attribute information according to the size magnification in consideration of the time when the attribute information is displayed.
[0128]
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.
[0129]
○ Input and arrangement of attribute information such as characters and symbols Here, a method of inputting attribute information (hereinafter referred to as notes) composed of characters and symbols, arrangement in a 3D space, and association with an attribute arrangement plane will be described. I do.
[0130]
First, leader lines and terminal symbols for specifying correspondence between a note and 3D elements such as faces, edges, and vertices of the 3D model to which the note is added, and terminal symbols will be described with reference to FIG.
[0131]
FIG. 33A is a diagram illustrating a state in which attribute information 501 is added to the surface 500a of the 3D model 500, and FIG. 33B is a diagram illustrating FIG. 33A viewed from the direction of the arrow 504.
[0132]
The attribute information 501 is arranged in the 3D space, and it is possible to visually confirm that the 3D element corresponding to the attribute information 501 is the surface 500a by the lead line 503 and the terminal element 502. As shown in FIG. 33C, the terminal element 502 includes an end 502a, a terminal symbol 502b (arrow in this embodiment), and the other end 502c. The end 502a is arranged on the surface 500a which is a corresponding 3D element, and the other end 502c of the terminal element 502 is connected to the end 503a of the lead wire 503. The lead line 503 is arranged on an extension of a straight line connecting the ends 502a and 502c of the terminal elements. In the vicinity of the end 503b of the lead line 503, attribute information 501 is arranged according to a predetermined setting.
[0133]
In FIG. 33C, a gap is shown between the end portions 502c and 503a, but this is schematically illustrated to facilitate the description of the terminal element 502 and the lead wire 503. It is not necessary to actually provide a gap.
[0134]
Next, the association of the attribute information 501 arranged in the 3D space with the attribute arrangement plane will be described.
[0135]
In associating the attribute information with the attribute placement plane, it is necessary to set the attribute information and the attribute placement plane that associates the attribute information.
[0136]
FIG. 34A is a diagram showing a state in which an attribute arrangement plane 600 is arranged on the 3D model 500, and FIG. 34B is a state in which attribute information 501 is further added from the state of FIG. FIG. FIG. 34C is a diagram showing a state in which the attribute information 501 is arranged in association with the attribute arrangement plane 600, and FIG. 34D is a view in which FIG. It is a figure showing the state seen from the right above. Note that the surfaces 500b and 500c are orthogonal to each other.
[0137]
The attribute placement plane 600 is parallel to the surface 500b of the 3D model 500 and is disposed at an interval arbitrarily set by the operator. The attribute information 501 is attribute information of the surface 500a of the 3D model 500. They are arranged in space (see FIG. 34 (c)). The setting of the attribute arrangement plane 600 may be performed before or after the setting of the attribute information 501.
[0138]
The association of the attribute information with the attribute arrangement plane is executed by the operator designating the attribute arrangement plane (in this case, the attribute arrangement plane 600) to which the attribute information is to be associated, and is shown in FIG. Thus, the attribute information 501 and the lead line 503 move on the attribute placement plane 600. The lead line 503 and the terminal element 502 are connected via the auxiliary lead line 505. As shown in FIG. 34D, the auxiliary lead line 505 is drawn from the end 502c of the terminal element 502 to the attribute placement plane 600 in a direction parallel to the normal direction of the attribute placement plane 600. Is connected to the end 503a. Therefore, when the 3D model 500 is displayed facing the attribute arrangement plane 600, the auxiliary lead line 505 becomes dotted, is displayed as shown in FIG. 33B, and can be viewed like a 2D drawing. .
[0139]
When associating the attribute information with the attribute arrangement plane, the arrangement direction of the terminal element 502 may be rearranged on a plane parallel to the attribute arrangement plane to be associated. More specifically, the terminal element 502 may be arranged on a plane that includes the end portion 502 a and is parallel to the attribute arrangement plane 600. By rearranging the terminal elements in this way, the visibility when viewing the attribute information like a 2D drawing is improved.
[0140]
In the above-described embodiment, the case where the terminal symbol 502b is an arrow has been described as an example.
[0141]
Further, in the above embodiment, when associating the attribute information with the attribute arrangement plane, the terminal element and the leader line are connected by the auxiliary leader line extending in a direction parallel to the normal direction of the attribute arrangement plane. However, the present invention is not limited to this, when displayed directly facing the attribute arrangement plane, that is, when displayed in a 2D drawing-like, the leader line and the auxiliary leader line are arranged on a straight line, It only needs to be displayed.
[0142]
Next, a method of changing the arrangement of the attribute information will be described.
[0143]
First, a method of changing the position of the attribute information placed in association with the attribute placement plane will be described with reference to FIG.
[0144]
The position of the attribute information 501 arranged on the attribute arrangement plane 600 is changed by the attribute information changing unit. Specifically, for example, it is only necessary to switch to the attribute information change mode, select the attribute information 501, and specify a new arrangement location. For selection of the attribute information 501, a dedicated selection screen may be provided, or the attribute information may be clicked with a coordinate pointing device such as a mouse and then dragged to a desired position. In accordance with the above method or the like, the lead line 503, the auxiliary lead line 502, and the terminal element 502 connected to the attribute information 501 move in conjunction with the arrangement of the attribute information 501 at a new position. FIG. 35B is a diagram showing a state in which the attribute information 501 is moved in the direction of the arrow 506 (see FIG. 35A) and is displayed facing the attribute arrangement plane 600. θ is the movement angle of the attribute information 501 on the attribute arrangement plane 600, and 503c is a leader line after the arrangement change. In the case of changing the position of the attribute information 501, the position of the end 502a of the terminal element 502 is preferably kept fixed.
[0145]
On the other hand, in order to change the position on the 3D element indicated by the terminal element 502, as in the case of changing the attribute information 501, the attribute information changing means selects the terminal element 502 to be changed, and newly specifies the location. Accordingly, the auxiliary lead line 505 connected to the terminal element 502 and the lead line 503 are linked, and the arrangement is changed. In the case of changing the position of the terminal element 502, the position of the attribute information 501 and the position of the end 503b of the leader line 503 are preferably kept fixed.
[0146]
Although the case where the attribute information 501 and the position change method of the terminal element 502 are executed independently has been described, the positions of the attribute information 501 and the terminal element 502 can be changed in the same mode. No problem.
[0147]
Next, a description will be given of a position change of the attribute information when the attribute information is not associated with the attribute arrangement plane. When the attribute information is not associated with the attribute placement plane, the attribute information changing means can select the attribute information to be changed and change the position to be changed by designating the position to be changed with a coordinate pointing device such as a mouse. is there. The same applies when changing the position of the end of the terminal element.
[0148]
Further, a case where the association of the attribute information with the attribute arrangement plane is released will be described.
[0149]
The attribute information associated with the attribute placement plane is released by selecting the attribute information to be released and performing a release operation. The release operation can be executed, for example, by providing a release switch in a menu for associating the attribute information, selecting the attribute information, and then activating the release switch.
[0150]
When the release operation is performed, the auxiliary lead line 505 connecting the terminal element 502 and the lead line 503 is deleted, and the end 502c of the terminal element 502 and the end 503a of the lead line 503 are connected. At this time, the leader line 503 and the attribute information 501 move in conjunction with each other, and the leader line 503 and the terminal element 502 are arranged on a straight line. That is, the state shown in FIG.
[0151]
O Multiple selection of attribute placement planes In the above embodiment, when displaying attribute information associated with attribute placement planes, the number of attribute placement planes to be selected was only one, but in view of the object of the present invention, There is no problem even if a plurality of attribute placement planes are selected.
[0152]
However, when performing a single selection of the attribute arrangement plane, there is only one viewpoint position and line-of-sight direction, so there is only one display method on the display device. So you have to be creative. 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.
[0153]
In addition, the display of the attribute information is devised so that the group can be easily identified by changing the color for each related attribute arrangement plane.
[0154]
○ Horizontal or vertical setting of the attribute placement plane In the present invention, only the viewpoint position, line-of-sight direction, and magnification are set as the attribute placement plane, and the setting of the horizontal or vertical direction of the attribute placement plane is mentioned. Did not.
[0155]
In the two-dimensional drawing, as shown in FIG. 25, a rule is provided for the arrangement of a view (a plan view, a front view, and a 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.
[0156]
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 10B, FIG. 11). In addition to (b)), the 3D model is rotated from this state, and a three-dimensional expression ((a) in FIG. 10 and (a) in FIG. 11) viewed from an oblique direction is also possible.
[0157]
Therefore, in the form of the 3D drawing, when displaying the plan view, the front view, and the side view, the horizontal direction or the vertical direction of the attribute arrangement plane (this horizontal direction or the vertical direction is assumed to correspond to each direction of the display screen). ) Does not need to be specified separately. 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 position of the part that has been viewed at the present time corresponds to the entire 3D model, and the location of the plan view and the side view viewed from another viewing direction can be easily determined. This is because there is no particular problem even if the display is performed without concern for the positional relationship between the viewing directions in the horizontal direction or the vertical direction of the attribute arrangement plane.
[0158]
However, in a 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. This is because there is a workplace where it is sufficient to save and view the two-dimensional image information electronic data format displayed by each attribute arrangement plane without modifying the 3D drawing and view it. There are also workplaces that cannot be handled without them.
[0159]
Assuming such a situation, it is necessary to apply a rule such as a two-dimensional drawing for the display viewed from each line of sight.
[0160]
Therefore, when creating the attribute placement plane, it is necessary to set the horizontal direction or the vertical direction when displayed on the display device 204.
[0161]
FIG. 30 shows a flowchart of the processing.
[0162]
First, a 3D model is created (step S301).
[0163]
Next, the position of the viewpoint, the viewing direction, and the magnification are set for the 3D model, and an attribute arrangement plane is created (step S302).
[0164]
Then, the horizontal direction (or the vertical direction) of the attribute arrangement plane is designated. (Step S303) In order to specify the horizontal direction (or the vertical direction), the directions (X, Y, Z) of three axes existing in the (virtual) 3D space may be selected. The direction of the ridge line or the vertical direction of the surface may be selected.
[0165]
By specifying the horizontal direction (or the vertical direction) of the attribute arrangement plane, the display position of the 3D model and the attribute information displayed by selecting the attribute arrangement plane is uniquely determined.
[0166]
When creating another attribute placement plane, the horizontal direction (or the vertical direction) may be specified while observing the relationship with the line-of-sight direction of the already created attribute placement plane.
[0167]
○ Display method of attribute information In the above conventional example, 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 information is associated with the attribute arrangement plane. The attribute 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 viewpoint of the attribute arrangement plane associated with the attribute information is selected. A method of displaying the 3D model and the attribute information by the position, the viewing direction, and the magnification is also effective.
[0168]
FIG. 31 (displayed from selection of attribute information) is a flowchart showing this series of processing operations.
[0169]
While the 3D model and the attribute information of the plan view of FIG. 8 are displayed, a hole diameter φ12 ± 0.2 is selected (step 311).
[0170]
This attribute information displays the 3D drawing and the attribute information associated with the attribute arrangement plane 211 based on the viewpoint position, the line-of-sight direction, and the magnification set in the associated attribute arrangement plane 211. Step 312. In this case, a front view is displayed as shown in FIG.
[0171]
Thereby, the relationship between the selected attribute information and the 3D model is displayed two-dimensionally, so that it is easier to recognize.
[0172]
-Surface selection method In the above conventional example, as the order of selectively displaying the attribute information input for the 3D model, first, an attribute arrangement plane is selected or attribute information is selected. The method of appropriately displaying the attribute information associated with these attribute placement planes based on the setting of the attribute placement plane associated with the attribute information has been described. However, the present invention is not limited to this method. Select geometric information (Geometry), display attribute information associated with the geometric information, and further specify the 3D model and the 3D model with the viewpoint position, line-of-sight direction, and magnification of the attribute arrangement plane associated with the attribute information. A method of displaying attribute information is also effective.
[0173]
FIG. 32 (displayed from selection of attribute information) is a flowchart showing this series of processing operations.
[0174]
Select geometric information (edges, faces, vertices) of the 3D model (step 321). Display attribute information associated with the selected geometric information (step 322). If there is a plurality of associated attribute information, If necessary, 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.
[0175]
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.
[0176]
As described above, related attribute information can be searched and displayed using the geometric shape of the 3D model as a key, so that it is very easy to use.
[0177]
Select geometric information → display related attribute information (single) → display at related attribute placement plane display position Select geometric information → related attribute information display (single) → display at related attribute placement plane display position. Display all the attribute information related to the attribute placement plane Select geometric information → display related attribute information (multiple) → display at the display position of the related attribute placement plane (single attribute placement plane)
Select geometric information → display related attribute information (plural) → display at the display position of related attribute placement plane (single attribute placement plane). Display all the attribute information related to the attribute placement plane Select geometric information → display related attribute information (multiple) → display at the display position of related attribute placement plane (multiple attribute placement plane)
Select geometric information → display related attribute information (plural) → display at the display position of related attribute placement plane (plural attribute placement plane). Displays (displays) all attribute information associated with the attribute placement plane
Here, the display of the 3D model to which the attribute information created as described above is added will be described.
[0178]
The 3D model to which the attribute information created by the information processing apparatus illustrated in FIG. 2 is added may be transmitted to the created apparatus itself or the data of the created 3D model via an externally connected device, and may be used in another similar manner. It can be displayed and used in each step shown in FIG. 1 by using the information processing device.
[0179]
First, a 3D model created by a product / unit / part design engineer or an operator who is a design designer himself writes the 3D model created by himself / herself into FIG. 9, FIG. 10 (b), and FIG. 11 (b). By performing the display as shown in (1), new attribute information can be added to the 3D model as if a two-dimensional drawing was created. Further, for example, when the shape is complicated, the 3D model is displayed in a three-dimensional display and a two-dimensional display alternately or as necessary on the same screen as needed, so that desired attribute information can be efficiently and accurately displayed. Can be entered.
[0180]
Further, an operator in a position of checking / approving the created 3D model displays the created 3D model on the same screen or by switching the display shown in FIGS. 9, 10 (b) and 11 (b). By doing so, a check is performed, and attribute information such as a mark, a symbol, or coloring that indicates checked, OK, NG, suspension, or requiring further study is added. Needless to say, a check is performed while comparing and referring to a plurality of products / units / parts as necessary.
[0181]
Also, a design engineer or a design designer other than the creator of the created 3D model can refer to the created 3D model and use it when designing another product / unit / part. By referring to this 3D model, the intention of the creator or the design method can be easily understood.
[0182]
Further, in producing and manufacturing a 3D model, an operator who adds information necessary for the 3D model to the 3D model or the 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, an instruction of the type of machining process, a tool to be used, or the like, or a corner R, a chamfer to a ridge, a corner, a corner, or the like necessary for machining to the 3D model. Alternatively, a measurement method instruction for dimensions, dimensional tolerances, etc., addition of measurement points to the 3D model, information to be noted in measurement, and the like are input. These can be efficiently and reliably performed while viewing the display that is arranged and created in an easy-to-view manner as shown in FIGS. 9, 10 (b) and 11 (b), and three-dimensionally confirming the shape as necessary. Done.
[0183]
Further, in producing and manufacturing a 3D model, an operator who obtains information necessary for making a desired preparation from the 3D model or the 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. When the mold is a resin injection mold, the operator adds, for example, a draft necessary for molding to the 3D model.
[0184]
It can also be used by operators who manufacture and manufacture products / units / parts. In this case, the operators are processing engineers and assembling engineers 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.
[0185]
Also, an operator who inspects, measures, and evaluates manufactured / manufactured products / units / parts can be used. In this case, the operator is a technician who inspects, measures, and evaluates products / units / parts. The operator displays the measurement method, measurement point, and information to be noted in the measurement for the dimensions, dimensional tolerances, and the like in an easily viewable manner as shown in FIGS. 9, 10B, and 11B. Inspection, measurement, and evaluation are carried out efficiently and reliably while checking the shape 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 portion such as a defect outside the dimensional tolerance or a flaw or a 3D model. In addition, similarly to the check result, an inspection, measurement, evaluated mark, symbol, coloring, or the like may be performed.
[0186]
In addition, operators in various departments and roles related to production / manufacture of products / units / parts can be used. In this case, the operator creates, for example, a person in charge of analyzing production and manufacturing costs, or a person in charge of ordering products / units / parts themselves, related various parts, etc., manuals for products / units / parts, packing materials, and the like. Person in charge, etc. Also in this case, the operator can easily understand and grasp the shapes of the products / units / parts while viewing the 3D model in a three-dimensional state, and can easily view the shapes as shown in FIGS. 9, 10B and 11B. Perform various tasks efficiently by looking at the display created and arranged.
[0187]
(Input of inspection instructions)
Next, the inspection instruction will be described.
[0188]
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.
[0189]
Here, the attribute information is input so that the position to be inspected is displayed clearly on the set attribute arrangement plane.
[0190]
That is, the inspection order, inspection position, inspection item, and the like are input for a surface, a line, a ridge line, and the like constituting the 3D model. By performing the inspection in that order, the number of inspection steps is reduced.
[0191]
First, by inputting an item and a position to be inspected, the whole is input. Next, the inspection order is allocated by a predetermined method, and the order is assigned to each item. When the inspection is actually performed, the attribute arrangement plane is selected by designating the order, and the surface of the position to be inspected in the displayed attribute arrangement plane has a different form (color, etc.). Are different), and the inspection position becomes clear.
[0192]
Then, for each designated inspection item, the inspection result is input, and it is determined whether or not reshaping is necessary.
[0193]
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.
[0194]
In addition, only the information associated with the line of sight can be viewed, and necessary information can be easily known.
[0195]
Also, by assigning a large amount of attribute information in the same line-of-sight direction to a plurality of attribute arrangement planes, an easy-to-view screen can be obtained, and necessary information can be easily known.
[0196]
In addition, by setting the attribute arrangement plane inside the 3D model, that is, the cross-sectional shape, the attribute information can be displayed in an easily understandable manner.
[0197]
In addition, 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.
[0198]
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.
[0199]
Also, by using the attribute information as a key, it is possible to search for an attribute arrangement plane and to see only information associated with the attribute arrangement plane, and to easily know necessary information.
[0200]
Also, by using the geometric information as a key, it is possible to search for the attribute information and the attribute arrangement plane, and to see only the information associated with the attribute arrangement plane, and to easily know necessary information.
[0201]
【The invention's effect】
As described above, according to the present invention, regardless of whether the attribute information added to the 3D model is associated with the attribute placement plane or not, the attribute information added to the 3D model is associated with the attribute placement plane. And the corresponding 3D element can be easily recognized, the work of adding attribute information and associating it with the attribute arrangement plane can be performed efficiently, and the design intention can be reliably transmitted to downstream processes. Becomes possible.
[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 apparatus 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 illustrating 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 a 3D model to which attribute information is added is displayed.
FIG. 17 is a flowchart illustrating a processing operation when setting a plurality of attribute arrangement planes in a 3D model.
FIG. 18 is a diagram illustrating a state in which a plurality of attribute arrangement planes are set in the 3D model.
FIG. 19 is a diagram showing a 3D model as 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 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 illustrating a case where an attribute arrangement plane is assigned to a part of a 3D model.
FIG. 24 is a diagram illustrating an example of a 3D model.
FIG. 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 of attribute information added to a 3D model.
FIG. 34 is an explanatory diagram of an operation of associating attribute information added to a 3D model with an attribute arrangement plane.
FIG. 35 is an explanatory diagram of an operation of changing the position of attribute information associated with an attribute arrangement plane.
[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 Attribute placement plane 500 3D model 501 Attribute information 502 Terminal element 503 Leader line 505 Auxiliary lead line 600 Attribute placement plane

Claims (6)

Attribute input means for inputting attribute information for the 3D model;
Attribute arrangement plane setting means for setting an attribute arrangement plane that is a virtual plane with which the attribute information is associated;
Storage means for storing the attribute information in association with the attribute placement plane,
A first end indicating a 3D element such as a surface, a ridge line, or a vertex of the 3D model, a second end facing the first end, and a terminal element including a terminal symbol;
A lead wire connected to the second end of the terminal element,
Attribute information specifying means for specifying the correspondence between the 3D model and the attribute information,
A first specifying mode for specifying the correspondence between the 3D model and the attribute information in a state where the attribute information is not arranged on the attribute arrangement plane;
In a state where the attribute information is arranged on the attribute arrangement plane, it is possible to selectively specify any one of a second specification form that specifies the correspondence between the 3D model and the attribute information. Information processing device. The first explicit form is:
The terminal element and the lead wire are linearly connected,
A form in which the attribute information is arranged in a 3D space,
The second explicit form is:
The second end of the terminal element and the leader line are connected via an auxiliary leader line parallel to a normal direction of an attribute arrangement plane where the attribute information is associated and arranged, and the leader line is connected to the attribute arrangement. 2. The information processing apparatus according to claim 1, wherein the information processing apparatus is arranged on a plane. When the 3D model is rotated from a state in which the attribute arrangement plane on which the attribute information is arranged is directly displayed, from the second explicit form,
3. The information processing apparatus according to claim 1, further comprising switching means for switching to the first explicit mode, wherein the switching means can be arbitrarily set by an operator. When the attribute information is arranged on the attribute arrangement plane, and in the second display mode, the arrangement of the attribute information on the attribute arrangement plane is changed, when the attribute arrangement plane is directly displayed, The terminal element and the lead line are linked so that a straight line connecting the first end and the second end of the terminal element is on the same straight line as the lead line. 3. The information processing apparatus according to 2. When the attribute information is arranged on the attribute arrangement plane and the first end of the terminal element is rearranged at another position on the corresponding 3D element in the second display form, the attribute arrangement plane 2. The terminal element to be rearranged and a lead line connected to the terminal element are rearranged while maintaining a state where they are arranged on the same straight line when are displayed directly facing. 3. The information processing apparatus according to 2. 6. The method according to claim 1, wherein, when a plurality of the attribute placement planes are present in the 3D model, one of the first and second explicit forms can be selected for each of the plurality of attribute placement planes. 7. Information processing device.

Images