JPH06103339A - Graphic processing system - Google Patents

Abstract

PURPOSE:To facilitate the production of the rough shape data, the detailed shape data, the normal shape data, etc., in a graphic processing system which produces the shapes of parts of a design drawing, etc. CONSTITUTION:A shape modeling means 3 contains a parameter holding part 10, a data reading part 11 which reads the shape data on a subject, and a shape processing part 12 which produces the shape data on the parts based on the parameter held by the part 10 and the shape data on the subject. The part 12 includes a minute shape deletion processing part 13 which deletes the minute shapes of the subject based on the parameter and the shape data on the subject and a shape production processing part 14 which performs the production processing of the shape data on parts basing on the shape data on the subject excluding the minute shapes. In such a constitution, the shape data on parts can be produced with the plotting precision accordant with the parameter.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graphic processing system such as a CAD system for creating shapes of parts such as design drawings.

A graphic processing system such as a CAD system creates shape data of parts and creates design drawings. Various shape data such as a simple shape, a detailed shape, or a standard normal shape is required for the shape data of the parts according to the design drawing.

An object of the present invention is to provide a graphic processing system capable of easily creating simplified shape data, detailed shape data, normal shape data, etc. of a part.

[0004]

2. Description of the Related Art FIG. 13 shows an example of a part shape used in a graphic processing system such as CAD. In the figure, the left side is a detailed view and the right side is a simplified view. 100 is a detailed view of the screw, 1
01 is a simplified view of the screw 100, 102 is a detailed view of the gear, 1
03 is a simplified view of the gear 102, 104 is a detailed view of the spring, 1
Reference numeral 05 is a simplified view of the spring.

FIG. 14 shows a conventional part shape forming method (1). In the figure, 110 is an object, which is an object of componentization. Reference numeral 111 denotes a part shape creating means, which creates shape data for converting the object 110 into parts. Reference numeral 112 denotes a detailed shape of the part created by the part shape creating means 111, which is a part of the object 110.

As shown in the figure, the part shape creating means 111 decomposes the original shape of the object 110 into components such as a triangle and a quadrangle like the detailed shape 112, and creates part data.

FIG. 15 shows a conventional part shape forming method (2). The figure shows a conventional method of simplifying an object into parts. In the figure, 120 is a target object, 121 is a worker, 122 is a simplified target object, 123 is a part shape creating means, and 124 is a simple shaped part. 130-133
Is a minute shape.

The worker 121 manually operates the object 12
The simplified object 122 is created by omitting the minute shapes (130 to 134) of 0. Based on the simplified object 122, the part shape creating means 123 decomposes the shape into elements and creates a simplified shape part 124.

[0009]

As described above, the conventional object processing in the graphic processing system is made into a detailed object as it is, or an object obtained by simplifying the shape of the object by manual work. I made things and made them into parts.

When the object is made into parts as it is, as in the conventional part shape creating method (1), the amount of calculation becomes enormous because all minute projections of the object are numerically processed. However, a large data processing device was required and the processing time was long.

Further, the conventional method (2) for creating the shape of a part has a large burden on the operator because it is simplified by manual work. INDUSTRIAL APPLICABILITY The present invention can easily create a simplified part from an object having a minute shape, and can easily replace a part data of a simple shape with a part of a detailed shape, and vice versa. It is an object of the present invention to provide a graphic processing system that can be easily replaced with a component having a simple shape.

[0012]

FIG. 1 is a basic configuration of the present invention.
Indicates (1). The figure shows a basic configuration for simplifying the object into parts according to the parameters.

In the figure, reference numeral 1 is a parameter input means for inputting a parameter which gives an accuracy for making an object into a component. 2 is a data input means for inputting the data of the object. The data of the object is stored in, for example, a magnetic disk or the like. Reference numeral 3 is a shape modeling means for making the object into a detailed shape, a normal shape, a simplified shape or the like based on the shape data of the object. Reference numeral 4 is a data output means for outputting the shape of the part created on a display, a printer or the like. A shape data storage unit 5 stores the shape data of the created parts in a magnetic disk or the like.

In the shape modeling means 3, 10 is a parameter holding unit for holding the input parameters. A data reading unit 11 reads the shape data of the object. Reference numeral 11 'is a shape data holding unit, which holds shape data. Reference numeral 12 is a shape processing unit, which creates parts based on the shape data of the object. Reference numeral 13 denotes a minute shape deletion processing unit that deletes the minute shape of the object according to the parameter. Reference numeral 14 is a shape creation processing unit, which creates simplified shape data of a part deleted in a minute shape. Reference numeral 15 denotes a part shape data creation unit, which creates the part data by decomposing the shape into parts (triangles, quadrilaterals, etc.) of the part shape. Reference numeral 16 denotes a data output unit, which performs a process of outputting the created component data to a display, a printer, a magnetic disk, or the like.

In the shape data storage means 5, 20 is a detailed shape storage section, 21 is a normal shape storage section, and 22 is a simplified shape storage section. In the figure, a control unit (C
PU) is omitted.

The operation of the configuration shown in the figure will be described later (see the section on operation). FIG. 2 shows the basic configuration (2) of the present invention. As for the figure, like creating detailed shape data from simplified shape data,
The basic configuration for performing replacement between parts data having different precisions such as simple shape data, normal shape data, and detailed shape data of parts, and creating other shape data from any shape data is shown.

In the figure, 30 is a shape data storage means. Reference numeral 31 is a shape memory means, which is, for example, a main memory in a computer. 32 is an input means,
It is composed of a keyboard and the like. Reference numeral 33 denotes a shape assembling means for assembling parts of a specified accuracy based on shape information, which is correspondence data between the shape data stored in the shape storage means 31 and the shape data having different accuracy, and other accuracy. The processing is performed such as replacement with the above parts.

In the shape data storage means 30, reference numeral 34 is simplified shape data, which represents simplified part data. Reference numeral 35 is normal shape data, which represents standard part data. Reference numeral 36 is detailed shape data, which represents detailed shape part data. Reference numeral 37 denotes shape information, which is correspondence information (for example, type and name of each part) of each part of simplified shape, normal shape, and detailed shape, and replacement information (for example, which part shape of the part is simplified). Information such as).

In the shape storage means 31, reference numeral 38 denotes a simplified shape storage section for storing data of parts having a simplified shape. Reference numeral 39 denotes a normal shape storage unit that stores the normal shape part data. A detailed shape storage unit 40 stores the detailed shape part data. A shape information storage unit 41 stores the shape information.

In the input means 32, 42 is a data input instruction, which is an input instruction of shape data. Reference numeral 43 denotes an assembling shape instruction, which indicates an instruction of an assembling shape such as a simple shape or a normal shape. Reference numeral 44 represents an assembly shape change instruction, for example, a change instruction such as changing to a detailed shape when the assembled shape is a simple shape. Reference numeral 45 denotes a data output instruction, which is an instruction for data output to a printer or the like.

In the shape assembling means 33, numeral 46 is a shape assembling section for assembling parts on the basis of the shape data and the shape information stored in the shape storing means 31. Reference numeral 47 denotes a shape replacement unit, which performs shape replacement when changing the shape assembled by the shape assembling unit from, for example, a simple shape to a detailed shape. A shape information creation unit 48 creates correspondence data between simple shapes, normal shapes, and detailed shapes.

A data output unit 49 outputs the created data to a printer or the like and stores the shape data storage means 30.
Is to be stored in. In the figure, a control unit (CPU) that controls each unit is omitted.

The operation of the basic configuration shown in the figure will be described later (see the section on operation).

[0024]

FIG. 3 is a diagram for explaining the operation of the basic configuration (1) of the present invention. In the figure, 60 is an object to be made into a component. Reference numeral 61 denotes a simple shape, which is a simple shape of the object 60.

In the object 60, 62, 63, 64,
Reference numerals 65 and 66 represent minute portions. In the simplified shape 61, 62 ', 63'64', 65 ', 66' are simplified parts by deleting the minute shapes 62, 63, 64, 65, 66, respectively.

The operation of the basic configuration (1) in FIG. 1 will be described (see FIG. 3). A parameter is input from the parameter input means 1. The parameters are held in the parameter holding unit 10. The data input means 2 inputs the shape data of the object (60). The shape data holding unit 11 ′ holds the read shape data of the target object 60. The minute shape deletion processing unit 13 calculates the minute shape (62, 63,
64, 65, 66) (the minute shape is determined by, for example, comparing the length of the minute portion with a parameter, and determining the minute portion if the length is less than the parameter). Then, the minute shape deletion processing unit 13 deletes a minute portion, and the shape creation processing unit 14 processes the shape such as connecting the deleted portions with a line segment or replacing the line segment with a point (the simplified shape 61 is simplified). The converted parts 62 ', 63', 6
4 ', 65', 66 ').

The shape data creation unit 15 of the part uses the simplified shape 6
1 is decomposed into graphic elements such as a triangle and a quadrangle to create part data of the simplified shape 61. The created part data is stored in the shape data storage means 5. The shape data is stored by classifying it into a detailed shape (without omission of a minute portion), a normal shape, a simplified shape, etc., according to parameters.

FIG. 4 is a diagram for explaining the operation of the basic configuration (2) of the present invention.
It is (1). In the figure, reference numeral 70 denotes a component, which has a simple shape. Reference numeral 71 is a screw hole, which is simplified, but information indicating that it is a screw hole is given as shape information. 74 is a gear and has a simple shape. Reference numeral 75 is a tooth of the gear, which is simplified but is given as the shape information in advance.

FIG. 5 is a diagram for explaining the operation of the basic configuration (2) of the present invention.
(2) In the figure, reference numeral 77 is a detailed shape of the spring. Reference numeral 78 is a simplified shape of the spring, and the detailed shape of the blade 7
7 represents a simplified shape.

In the basic configuration (2) of the present invention, it is possible to freely replace the component data of each precision. For example, the detailed shape 77 of the spring obtained by assembling the detailed shape component data can be replaced with the simplified shape 78 of the spring by the replacement operation with the simplified shape, and conversely, from the simplified shape 78 of the spring to the detailed shape of the spring. Can be replaced with 77.

The operation of the basic configuration (2) in FIG. 2 will be described. According to the data input instruction 42, the simplified shape data 34, the normal shape data 35, the detailed shape data 36, and the shape information 37 of the part are read from the shape data storage means 30 into the shape storage means (main memory). The simplified shape storage unit 38,
It is stored in the normal shape storage unit 39, the detailed shape storage unit 40, and the shape information storage unit 41.

For example, a case of assembling a simple shape will be described. When the assembling shape instruction 43 of the simple shape is given by the input means 32, the shape assembling section 46 assembles the simple shape parts based on the simple shape data, the normal shape data and the shape information of the simple shape storing section 38. Then, the shape information creating unit 48 creates the attributes of the simplified parts of the simple shape, the corresponding detailed shapes, and the like and stores them in the shape information storage unit 41 (for example, in FIG. 4, the teeth 75 of the gear 74 are simplified. Create shape information (name, position, etc.)

Next, the case of replacing the assembled simple-shaped component with a detailed component will be described. When the assembly shape change instruction 44 is given by the input means 32, the shape replacement unit 47 reads the storage data of the detailed shape of the detailed shape storage unit 40, and based on the shape information of the shape information storage unit 41, the assembled simple The simplified part of the shape is replaced with the detailed shape, and replaced with the part of the detailed shape (for example, in FIG.
Replacing the teeth 75 of the gear 74 of FIG. 3 with a detailed shape (not shown)).

The data output section 49 outputs a data output instruction 4
The shape of the part created in accordance with No. 5 is output to a display, a printer or the like (not shown). Further, it is stored in the shape data storage means 30.

[0035]

FIG. 6 shows an embodiment of the graphic processing system of the present invention. In the figure, 80 is a CPU, 81 is a main storage unit, 8
2 is an input means, such as a keyboard. Reference numeral 83 is a shape modeling means, which is stored in a magnetic disk or the like and is read out to the main storage portion 81 to operate.
Reference numeral 84 is a shape assembling means, which is stored in a magnetic disk or the like and is read out to the main storage portion 81 to operate.
Reference numeral 85 is a shape data storage means, such as a magnetic disk. 86 is a detailed shape storage unit, 87 is a normal shape storage unit,
Reference numeral 88 is a simplified shape storage unit, and 89 is a shape information storage unit.

7 to 8 show an embodiment of the basic configuration (1) of the present invention. FIG. 7 shows an embodiment of the operation flow of the shape modeling means of the present invention. In the figure, 10 is a parameter holding unit, 11 'is a shape data holding unit, and 14 is a shape creation processing unit (reference numerals of the respective units are the same as those in FIG. 1).

The flow chart will be described later. FIG. 8 is an operation explanatory view of the shape modeling means of the present invention. In the figure, reference numeral 180 denotes a target object, and reference numerals 181, 182 and 183 denote fine shapes, which indicate the fine structure of the target object 180. 18
Reference numerals 1 ', 182', and 183 'are enlarged views of respective fine shapes. Reference numerals 184, 185, and 186 are simplifications of the fine shape and show the shapes obtained by simplifying the fine shape. 181 ", 1
82 "and 183" are fine shapes 1 of the object 180, respectively.
81, 182 and 183 are simplified parts. 187
Is a simplified shape, which is a simplified shape of the object 180.

The flow of FIG. 7 will be described with reference to FIG.
The parameter holding unit 10 holds a as the length of the deleted line segment. The shape data holding unit 11 ′ holds the nth line data Ln and the nth point data Pn of the shape of the object.

Based on the parameter a of the S1 parameter holding unit 10, the line segment data L of the shape data holding unit 11 '
A line segment having a length of a or less is extracted from n. Here, the extracted line segment is L ₁ , and its end points are P ₁ and P ₂ (18
See 1 ').

A line segment continuing from both ends of S2 L ₁ is extracted. The line segment continuing from P ₁ is L _2, and the line segment continuing from P ₂ is L _3.
(See 181 '). S3 L ₂ , L ₃ and a are compared in magnitude. Line segment (L ₁ ,
If L ₂ ) is smaller than the parameter a, proceed to S4, otherwise proceed to S8.

All continuous line segments having a length of S4a or less are extracted. S5 _Let both ends of the extracted continuous line segments be P _{a and} P _b (see 183 ′). S6 This continuous line segment and points other than P _a and P _b are deleted.

A line segment is created between S7 P _a and P _b (1
85, 186). S8 seek midpoint P ₃ of the line segment L ₁ (181 'see). Change _one end of S9 L ₂ from P ₁ to P ₃ (1
84).

One end point of S10 L ₃ is changed from P ₂ to P ₃
(See 184). S11 The line segment L ₁ and the points P ₁ and P ₂ are deleted (see 184). 9 to 12 show an embodiment of the basic configuration (2) of the present invention.

In FIG. 9, FIG. 10, FIG. 11 and FIG.
Reference numeral 30 is a shape data storage means (not shown in FIGS. 10 to 11), 31 is a shape storage means (main memory), 32 is an input means, which is a terminal device. 33 is a shape assembling means (see FIG. 9).
Is omitted), 38 is a simplified shape storage unit, 39 is a normal shape storage unit, 40 is a detailed shape storage unit, and 41 is a shape information storage unit. Reference numeral 95 is a control unit (CPU). Reference numeral 96 denotes a work area of the main memory, which is an area for assembling parts. In each figure, the common parts with FIG. 2 are common numbers.

FIG. 9 shows an input process of each shape data.
In response to an input instruction from the input means (terminal device) 32, each shape data is read from the shape data storage means 30 by the control unit 95 and stored in each storage area of the shape storage means (main memory) 31. Shape data and shape information may be input from a terminal device, such as a designer creating and inputting data relating to correspondence between simplified information and detailed information.

FIG. 10 shows a shape assembling process. The figure shows the case of assembling a simple shape (the assembling process may be performed from the detailed shape or the normal shape).

When a simple shape assembling instruction is given from the input means 32, the simple shape data and the normal shape data are read from the simple shape storage section 38 into the work area, and the simple shape is assembled according to the shape assembling means 33. To be Then, each time one shape is assembled, assembly information such as one relationship with other information (for example, the position of a simplified portion) is created and stored in the shape information storage unit 41.

FIG. 11 shows a process of replacing the detailed information. When a replacement command to the detailed shape is issued from the input means 32, detailed shape data from the detailed shape storage unit 40,
Shape information (corresponding data, assembly information) is read out,
It is stored in the work area 96 of the main memory. Then, the shape assembling means 33 assembles the detailed shape.

FIG. 12 shows a process of replacing with simplified information. When a replacement command to the simplified shape is issued from the input means 32, the simplified shape data from the detailed shape storage unit 40,
The shape information (correspondence information, assembly information) is read out and stored in the work area 96 of the main memory. Then, the shape assembling means 33 assembles a simple shape.

[0050]

According to the present invention, shape data of a part whose shape is simplified can be easily created with arbitrary accuracy. In addition, replacement of parts with different precision between shape data becomes easy. For this reason, it is possible to process a simple graphic that normally takes a short processing time and automatically create a detailed drawing if necessary, which improves management of the design drawing.

[Brief description of drawings]

FIG. 1 is a diagram showing a basic configuration (1) of the present invention.

FIG. 2 is a diagram showing a basic configuration (2) of the present invention.

FIG. 3 is an operation explanatory diagram of the basic configuration (1) of the present invention.

FIG. 4 is an operation explanatory diagram (1) of the basic configuration (2) of the present invention.

FIG. 5 is an operation explanatory diagram (2) of the basic configuration (2) of the present invention.

FIG. 6 is a diagram showing an embodiment of a graphic processing system of the present invention.

FIG. 7 is a diagram showing an example of an operation flow of the shape modeling means of the present invention.

FIG. 8 is an operation explanatory view of the shape modeling means of the present invention.

FIG. 9 is a diagram showing an input process of each shape data.

FIG. 10 is a diagram showing a shape assembling process.

FIG. 11 is a diagram showing a replacement process to a detailed shape.

FIG. 12 is a diagram showing a process of replacing with a simplified shape.

FIG. 13 is a diagram showing an example of a part shape used in the graphic processing system.

FIG. 14 is a diagram showing a conventional part shape creation method (1).

FIG. 15 is a diagram showing a conventional part shape creating method (2).

[Explanation of symbols]

 1: Parameter input means 2: Data input means 3: Shape modeling means 4: Data output means 5: Shape data storage means 10: Parameter holding unit 11: Data reading unit 11 ': Shape data holding unit 12: Shape processing unit 13: Minute shape deletion processing unit 14: Shape creation processing unit 15: Part shape data creation unit 16: Data output unit 20: Detailed shape storage unit 21: Normal shape storage unit 22: Simplified shape storage unit

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[Procedure amendment]

[Submission date] September 28, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 5]

[Figure 1]

FIG. 14

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 6]

[Figure 7]

[Figure 8]

[Fig. 13]

[Figure 9]

[Figure 10]

FIG. 11

[Fig. 12]

FIG. 15

Claims (2)

[Claims] 1. A graphic processing system for creating shape data of an object by a computer and converting it into a part, and a shape modeling means (3) for creating shape data of the part and a shape modeling means (3) for creating the shape data of the object. ), Data input means (2), parameter input means (1) for inputting parameters that determine the accuracy of expressing the shape in creating the shape data of the part, and the part created by the shape modeling means (3). Data output means for outputting shape data
The shape modeling means (3) includes a parameter holding unit (10) for holding the parameter, a data reading unit (11) for the shape of the object, the parameter and the shape data of the object. And a shape processing unit (12) for creating shape data of a part based on the parameter, and the shape processing unit (12) deletes a minute shape in the shape of the object based on the parameter and the shape data of the object. The part includes a shape deletion processing unit (13) and a shape creation processing unit (14) that creates the shape data of the part based on the shape data of the object from which the minute parts have been deleted. A graphic processing system characterized by creating shape data. 2. A shape data storage means (30) for storing shape data of a partized object, a shape storage means (31) for reading and storing the shape data, and a shape of the shape storage means (31). A shape assembling means (33) for assembling the shape of the part based on the stored data, a data input instruction, an assembly shape instruction for assembling shape accuracy instruction, and an assembly shape changing instruction for assembling shape accuracy change instruction are given. The shape data storage means (30) is provided with an input means (32), and the simple shape data of the object, detailed shape data with high drawing accuracy, normal shape data of standard shape, simple shape, normal shape and detailed shape. The shape storage means (31) is provided with shape information which is correspondence data between each data.
Is a simplified shape read from the shape data storage means (30),
Normal shape, detailed shape and shape information are stored, shape assembling means
(33) is a shape assembling means (33) for assembling the shape data with accuracy indicated by the input means (32) based on the shape data and shape information stored in the shape storage means (31), and A shape replacement unit (4) that replaces a part with a part having a shape having the specified accuracy based on the shape information and the shape data having the specified accuracy.
7) and a shape information creation unit (48) that creates shape information of the assembled parts, and creates the shape data of the parts with the accuracy instructed by the instruction of the input means (32) and A graphic processing system characterized by replacing a shape with a shape of different accuracy.