JPH05165926A - Method and device for processing graphic - Google Patents

Abstract

PURPOSE:To reduce operations required for moving a body graphic by calculat ing the body graphic with a passing core to be processed as a reference and moving the calculated body graphic to a required position. CONSTITUTION:Concerning the graphic processing method to move the body graphic prepared with the passing core as the reference by using a computer, the body graphic with the passing core to be processed as the reference is calculated (S3), and the calculated body graphic is moved to the required position. In the case of calculating the body graphic with the passing core to be processed as the reference, the attribute information of a graphic as a moving candidate is read and it is checked whether the graphic of this moving candidate defines the passing core to be processed as the reference or not (S4). Thus, it is enough for an operator only to instruct the passing core to be moved and the position to be moved, and the body graphic with the passing core to be processed as the reference can be easily calculated. Therefore, the body graphic prepared with the passing core as the reference can be moved only by executing a little operations.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to creation of architectural drawings and the like using a CAD system and the like, and more particularly to a method and apparatus for processing a skeleton figure based on a center line.

[0002]

2. Description of the Related Art In a conventional CAD system, for example, in order to move a core 20 to a position shown by a triangle mark 28 as shown in FIG.
As shown in Fig. 11, the skeleton 2
1, 22, 23, 24, 25, 26 and 27 have been deleted, and then the runner 20 has been deleted from the architectural drawing of FIG. 12, as shown in FIG. 13, and then shown in FIG. As shown, the new core 2 is placed at the position indicated by the triangle 28.
0 was created, and then, as shown in FIG. 15, a skeleton graphic was created again around the new base core 20.

[0003]

As described above, in the conventional CAD system, many operations and time are required to move the center line and the skeleton figure based on it.

The present invention has been made to solve the above-mentioned conventional problems, and requires only a slight operation.
An object of the present invention is to provide a graphic processing method and device capable of moving a skeleton graphic created based on a center line.

[0005]

In order to achieve the above object, the graphic processing method according to claim 1 is a graphic processing method in which a skeleton graphic created based on a line core is moved using a computer. It is characterized in that a skeleton figure based on a line core to be processed is obtained, and the obtained skeleton figure is moved to a required position.

According to a second aspect of the present invention, there is provided a graphic processing method, wherein when obtaining a skeleton graphic based on a line core to be processed,
It is characterized in that the attribute information of the figure which is the movement candidate is read and whether or not the figure which is the movement candidate is based on the skeleton to be processed.

A graphic processing apparatus according to a third aspect is a graphic processing apparatus for moving a core figure created based on a core, and a core figure for obtaining a core figure based on a core to be processed. Specific means (for example, the CPU of the embodiment)
7 and step S3 of FIG. 2, that is, the ROM 8 for storing a program corresponding to the process of FIG. 3, and a skeleton figure moving means for moving the skeleton figure obtained by this skeleton figure specifying means to a required position (for example, the embodiment CPU 7 and ROM 8) which stores a program corresponding to the processing of steps S4 to S10 of FIG.

The graphic processing apparatus according to claim 4 further comprises attribute information storage means (for example, the attribute information table 9b of the embodiment) for storing attribute information for specifying a core line based on the frame figure. It is characterized in that the figure specifying means refers to the contents of the attribute information storage means and obtains a skeleton figure based on the line core to be processed.

According to a fifth aspect of the present invention, there is provided a graphic processing apparatus for moving a core figure created on the basis of a core, wherein the core figure to be processed is found and obtained. A processing means (for example, the CPU 7 of the embodiment and the ROM 8 storing the program corresponding to the processing of steps S3 to S10 of FIG. 2) for moving the obtained frame figure to a required position, and the frame figure moved by this processing means. And an output unit (for example, the display 5 and the plotter 6 in the embodiment) for outputting a drawing including the above.

[0010]

According to the figure processing method of the first aspect of the present invention, the frame figure based on the core to be processed is obtained,
Since the obtained frame figure is moved to the required position, the operator only needs to indicate the core to be moved and the position to be moved.

In the figure processing method according to the second aspect of the present invention, the attribute information of the figure which is the movement candidate is read, and it is checked whether or not the figure which is the movement candidate is based on the center line to be processed. As a result, since the frame figure based on the core to be processed is obtained, the frame figure based on the core to be processed can be easily obtained.

In the graphic processing apparatus having the structure of claim 3, the skeleton figure based on the core to be processed is obtained by the skeleton figure specifying means, and the obtained skeleton figure is moved to the required position by the skeleton figure moving means. As such, the operator need only indicate the core to be moved and the position to be moved.

In the graphic processing device having the structure of the fourth aspect, the skeleton graphic specifying means refers to the contents of the attribute information storage means to obtain the skeleton graphic with the line core to be processed as a reference. Then, it is possible to obtain a skeleton figure based on the line core to be processed.

In the graphic processing apparatus having the structure of claim 5, the processing means obtains a frame figure based on the core to be processed, moves the obtained frame figure to a required position,
The output means outputs the drawing including the moved body figure. Therefore, the operator only needs to indicate the center line to be moved and the position to be moved through the input means, and can obtain the drawing output after moving the skeleton figure.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 shows the configuration of an embodiment of the graphic processing apparatus of the present invention. This embodiment is an example in which the present invention is applied to a CAD system. The embodiment shown in FIG. 1, namely CA
The D system is capable of inputting the hard disk 1 in which the core data and the skeleton figure data of the architectural drawing and the like are stored in advance, and various commands for creating the architectural drawing, such as the moving axis command, and the like. A keyboard 2 and a mouse 3 capable of instructing a figure and inputting parameters of a skeleton figure, and commands and parameters etc. inputted from these keyboard 2 and mouse 3 are taken in and data of a core line from the hard disk 1 and CA that takes in the skeleton figure data, obtains the skeleton figure with the line core designated by the mouse 3 as a reference, and moves the obtained skeleton figure to the position designated by the mouse 3.
It comprises a D main body 4, a display 5 for displaying the graphic data processed by the CAD main body 4, and a plotter 6 for outputting the graphic data on the recording paper as an architectural drawing.

The CAD body 4 obtains a skeleton figure based on the line core designated by the mouse 3, and performs processing such as calculation for moving the obtained skeleton figure to the position designated by the mouse 3. CPU 7 and CPU
A ROM 8 stores a CAD program for performing such processing, and a RAM 9 serving as a work area for processing for obtaining and moving a skeleton figure with the above-mentioned base as a reference.
And an interface 10 for transferring data between the CAD main body 4 and the input / output device (hard disk 1, keyboard 2, mouse 3, display 5 and plotter 6).

The RAM 9 has a graphic I which will be described in detail later.
D table 9a, attribute information table 9b, component table 9c, graphic information table 9d, and ID buffer 9
area g is provided. Further, the RAM 9 is provided with an area of a video RAM 9a.
By writing the figure data in M9a, a figure such as an architectural drawing is displayed on the display 5.

The architectural drawing file stored in the hard disk 1 has a hierarchical structure in which the skeleton figure is an element unit, and the skeleton figure is stored in the RAM 9 when the CAD program is executed.
And is processed by the CPU 7 in accordance with the core movement command or the like input from the keyboard 2 or the mouse 3.

When a moving core command is input from the operator via the keyboard 2 or mouse 3,
The core movement flag is set in the area 9e of the RAM 9.

The mouse 3 is provided with four buttons. Button 1 is for instructing a figure, button 2 is for inputting a YES / NO YES command or an instruction delimiter, button 3 is for inputting cancel, and button 4 is YES / N
The operator inputs the NO command of O.

FIG. 2 is a flow chart showing an operation example of the embodiment shown in FIG. The operation of the embodiment shown in FIG. 1 will be described below with reference to FIG. First, the operator operates the keyboard 2 or the mouse 3 to input a through core movement command. As a result, the core movement flag is set in the storage area 9e of the RAM 9.

In this state, in steps S1 and S2 of FIG. 2, the operator operates the mouse 3 to indicate the moving core to be moved and the position to be moved. In response to this, the CPU 7 sets the center line to be moved and the position to which the center line is moved to R.
Store in AM9.

Next, in step S3, the CPU 7 obtains a graphic to be moved together with the grid, that is, a graphic with the designated grid as a reference. FIG. 3 shows FIG.
A specific example of the process of step S3 of is shown. Hereinafter, a process of obtaining a graphic with the grid line as a reference will be described with reference to FIG.

First, in step S31, the CPU 7
Determines whether the figure ID is valid. Graphic ID numbers are individually assigned to the graphics stored in the hard disk 1, and the graphic ID table 9a includes an attribute information table for each graphic ID number, as shown in FIG. 9b, pointer to component table 9c, graphic type (for example, dot, line segment, or group),
A pointer and the like to the graphic information table 9d are stored. The number of graphic ID numbers is stored in the RAM 9, and the CPU 7 processes the graphic with the smallest graphic ID number, that is, the graphic ID number "1". Therefore, in the determination block of step S31, it is determined that the graphic ID numbers stored in the RAM 9 are valid (YES).
Is done.

Next, in step S32, the CPU 7
Reads the content of the graphic ID table 9a corresponding to the graphic ID number being processed, that is, a pointer to the attribute information table 9b, and reads the attribute information from the attribute information table 9b using this pointer as an address. The attribute information table 9b stores, as the attribute information, the attribute type (for example, distinction between a pillar and a wall), a reference line ID, and the like.

The CPU 7 first analyzes the attribute type from the read attribute information and determines whether or not it is a skeleton figure (step S33). If it is a skeleton figure,
Next, the CPU 7 analyzes the reference line ID from the attribute information, and determines whether or not the reference line ID designated to be moved is set as the reference (step S34). If the designated line center is used as a reference, the CPU 7 stores the figure ID number being processed in the ID buffer 9g (step S
35), the figure ID number is incremented by 1 (step S36). Then, returning to step S31, the CP
U7 performs steps S31 to S31 for the next ID number.
The process of 36 is repeated. All assigned graphics I
When the process for the D number is completed and is incremented to the next figure ID number, it is determined to be invalid in step S31, and the process for the figure ID ends (YES in step S37). As a result of the processing of FIG. 3, the graphic corresponding to the graphic ID number stored in the ID buffer 9g is the graphic to be moved together with the center line.

Returning to FIG. 2, the CPU 7 causes the step S3.
It is checked whether or not there is a movement restriction on the figure obtained in (step S4). If the calculated movement range of the figure is limited, the CPU 7 stores the coordinates indicating the range in the RAM 9. If movement of the figure obtained is prohibited, C
The PU 7 treats it as an error and exits the core movement routine as shown in FIG.

Next, the CPU 7 moves the column in step S5. FIG. 5 shows a specific processing example of step S5. Hereinafter, the pillar moving process will be described with reference to FIG.

First, the CPU 7 obtains the pointer of the first component in step S51. It is easier to understand this process by explaining it with a concrete example, and therefore a prism will be described as an example. The prism is, as shown in FIG. 7, two points in the drawing, namely, point 1 and point 2, and four lines,
That is, it is composed of line 1, line 2, line 3 and line 4. As shown in FIG. 8, a graphic ID number is assigned to each of these points and lines and prisms (that is, groups) having these as constituent elements, and the graphic ID table 9a includes the graphic ID numbers shown in FIG. As shown in FIG. 8 and FIG. 8, for each figure ID number, that is, for each component, a pointer to the attribute information table 9b, a pointer to the component table 9c, a figure type (for example, dot, line segment) ,
A group and a pointer to the graphic information table 9d are stored. Further, a pointer indicating the storage area of the pointer to the first component stored in the graphic information table 9d is stored in the rectangular column of the graphic ID table 9a, that is, the area corresponding to the group 1.

The graphic information table 9d includes, as shown in FIG. 8, in addition to the pointer of the above-mentioned first component.
For points 1 and 2, in the areas corresponding to these,
The coordinates of these points are stored, and for line segment 1 and line segment 2, the coordinates of the two end points of these line segments are stored in the corresponding regions. As shown in FIG. 8, the constituent element table 9c stores a relationship between constituent elements of a group (in the example of FIG. 7, a prismatic constituent element, that is, two points and four points).
(Relationship between two line segments) is stored, and for each component, the graphic ID of the component, the pointer to the previous component, the pointer to the subsequent component, and the parent graphic ID are stored.

Returning to FIG. 5, the CPU 7 executes step S5.
1, the area of the group 1 of the graphic ID table 9a is read out, and the "first component pointer" is read out from the graphic information table 9d using the read information. Next, the CPU 7 reads the area in the constituent element table 9c indicated by the "pointer of the first constituent element". As a result, in the example of FIGS. 7 and 8, point 1
The graphic ID of is read out, and it means that there is a component (YES in step S52). Next, the CPU 7 uses the read graphic ID to read the storage information of the corresponding area (area of point 1 in the examples of FIGS. 7 and 8) of the graphic ID table 9a, and from this, the graphic information table 9d. Using the pointer to, the processing corresponding to the type of figure is performed (steps S53 to S57). In the examples of FIGS. 7 and 8, the CPU 7 sets the coordinates of the point 1 to the graphic information table 9
The position (and the movement limit range, if any) in which the core is to be moved, which is read from d and stored in the RAM 9
To the position corresponding to (step S55).

Next, the CPU 7 causes the constituent element table 9 in the storage information of the graphic ID table 9a read out earlier.
The pointer to c is used to obtain the pointer of the next component from the component table 9c (step S58). In the example of FIGS. 7 and 8, the figure ID of the point 2 is read from the constituent element table 9c. Then, the processes of steps S51 to S58 described above are performed on the following components. All the components, that is, in the example of FIG.
When the processing of steps S52 to S58 is completed for point 1, point 2, line 1, line 2, line 3 and line 4, the CPU 7 determines in step S52 that there is no component,
The process ends.

Returning to FIG. 2, the CPU 7 then performs a process for moving the walls and beams adjacent to the columns in step S6. In the case of the example in FIG. 10, it is the walls 24 and 25 that are adjacent to the column 21, and these walls 24 and 25 are adjacent to each other.
Is the target of processing. A specific example of the process for moving the wall and the beam adjacent to the pillar is shown in FIG. 9, and will be described below with reference to FIG. 9.

First, the CPU 7 obtains the IDs of the walls and beams adjacent to the pillar (step S91), and judges whether the obtained IDs of the walls and beams (hereinafter referred to as "adjacent figures") are valid. (Step S92) If valid, line segment information of adjacent figures is obtained (step S93), intersections of these line segments and pillars are obtained (step S94), and line segment information of adjacent figures is changed (step S94). S95). The CPU 7 performs the processing of steps S91 to S96 for all the adjacent figures, and when there are no adjacent figures to be processed, ends the processing (YES in step S96). FIG. 10 (b) is shown in FIG.
It shows that the movement of the walls 24 and 25 adjacent to the column 21 based on the core 20 to be moved shown in 0 (a) is completed.

Returning to FIG. 2 again, the CPU 7
In step S7, a process for moving the beam is performed.
This process is similar to the process for moving the pillars shown in FIG. 5 and described above, and will not be described here. Then C
PU7 performs the process for the movement of the opening part attached to a beam in step S8. This process is similar to the process for moving the walls and beams adjacent to the columns, as shown in FIG. 9 and described above, and will not be described here. Next, CPU
In step S9, the process 7 performs a process for moving the wall. This process is similar to the process for moving the pillars shown in FIG. 5 and described above, and will not be described here. Next, in step S10, the CPU 7 performs a process for moving the opening attached to the wall. This process is shown in FIG.
Since it is similar to the process for moving the walls and beams adjacent to the columns shown in and described above, it will not be described here.

The CPU 7 stores the processed graphic data of FIG. 2 in the video RAM 9f. As a result, the graphic after the center line movement is displayed on the display 5. When the operator inputs a print command via the keyboard 2, the graphic stored in the video RAM 9f is output from the plotter 6 as a hard copy.

In the above embodiment, the CPU 7 and the ROM 8 obtain a skeleton figure based on the line core designated by the input means and move the obtained skeleton figure to the position designated by the input means. However, dedicated hardware may be provided instead of the CPU and the ROM. Further, a skeleton figure specifying means for obtaining a skeleton figure based on the skeleton designated by the input means, and a skeleton figure movement for moving the skeleton figure obtained by the skeleton figure specifying means to the position designated by the input means The means may be provided separately.

The present invention can be applied to various drawings such as mechanical design drawings in addition to architectural drawings.

Further, although the mouse is used as the input means in the above embodiment, a tablet or the like may be used instead.

[0040]

As is apparent from the above description, claim 1
According to the figure processing method of (1), since the frame figure based on the core to be processed is obtained and the obtained frame figure is moved to the required position, the operator is to move and the core is moved. All you have to do is specify the right position. Therefore, the required operation can be made small.

According to the figure processing method of the second aspect, the attribute information of the figure which is the movement candidate is read, and it is checked whether or not this figure is based on the line core to be processed, so that the figure should be processed. Since the frame figure based on the line core is obtained, the frame figure based on the line core to be processed can be easily obtained.

According to the figure processing device of the third aspect, the skeleton figure specifying means obtains the skeleton figure with the line core to be processed as a reference, and the skeleton figure moving means places the obtained skeleton figure at a required position. Since it is moved, the operator need only indicate the core to be moved and the position to be moved.

According to the figure processing device of the fourth aspect, the skeleton figure specifying means refers to the contents of the attribute information storage means to obtain the skeleton figure with the skeleton to be processed as a reference. With this configuration, it is possible to obtain a skeleton figure based on the line core to be processed.

According to the graphic processing apparatus of the fifth aspect, the processing means obtains the frame figure based on the core to be processed, moves the obtained frame figure to the required position, and the output means is moved. Since the drawing including the skeleton figure is output, the operator need only specify the center line to be moved and the position to be moved, and the drawing output after moving the skeleton figure can be obtained. ..

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of a graphic processing device of the present invention.

FIG. 2 is a flowchart showing an operation example of the embodiment of FIG.

FIG. 3 is a flowchart showing an example of an operation of obtaining a movement target graphic in step S3 of FIG.

FIG. 4 is a figure ID table 9a and an attribute information table 9b.
It is explanatory drawing which shows the relationship with.

5 is a flowchart showing an example of a pillar moving operation in step S5 of FIG.

FIG. 6 is a figure ID table 9a and a constituent element table 9;
It is explanatory drawing which shows the relationship between c and the figure information table 9d.

FIG. 7 is a conceptual diagram showing that a prism, which is one of groups (graphic types), is composed of two points and four lines.

8 is an explanatory diagram showing stored contents and mutual relationships of a graphic ID table 9a, a component element table 9c, and a graphic information table 9d when the group is the prism of FIG. 7. FIG.

9 is a wall adjacent to the pillar in step S6 of FIG. 2,
It is a flow chart which shows an example of movement operation of a beam.

FIG. 10 is a column 21 and a wall 24 before and after the moving operation of FIG.
It is a figure which shows 25 and.

FIG. 11 is a diagram showing an example of a processing target architectural drawing in a conventional CAD system.

FIG. 12 is a view showing a state in which a skeleton figure is deleted from the architectural drawing of FIG. 11 in a conventional CAD system.

13 is a diagram showing a conventional CAD system in which a through core is deleted from the architectural drawing of FIG.

FIG. 14 is a diagram showing a new CAD core created at a position indicated by a triangle mark 28 in the architectural drawing of FIG. 13 in the conventional CAD system.

FIG. 15 is a diagram showing a skeleton figure recreated around the architectural drawing of FIG. 14 in the conventional CAD system.

[Explanation of symbols]

 3 Mouse 5 Display 6 Plotter 7 CPU 8 ROM 9 RAM 9a Graphic ID Table 9b Attribute Information Table 9c Component Table 9d Graphic Information Table 9e Center Line Movement Flag 9f Video RAM 9g ID Buffer

Claims (5)

[Claims] 1. A graphic processing method for moving a skeleton figure created on the basis of a skeleton using a computer, wherein a skeleton figure based on a skeleton to be processed is obtained, and the obtained skeleton is obtained. A graphic processing method characterized by moving a graphic to a required position. 2. When obtaining a skeleton figure whose reference is the skeleton to be processed, the attribute information of the figure which is a movement candidate is read, and the figure which is this movement candidate uses the skeleton to be processed as a reference. The graphic processing method according to claim 1, wherein it is checked whether or not it is present. 3. A figure processing device for moving a skeleton figure created on the basis of a skeleton, wherein a skeleton figure specifying means for obtaining a skeleton figure based on a skeleton to be processed, and the skeleton figure specifying means The skeleton figure found by
A figure processing device comprising: a body figure moving means that moves to a required position. 4. The apparatus further comprises attribute information storage means for storing attribute information for identifying a core line based on the body figure, wherein the body figure identifying means refers to the contents of the attribute information storage means to perform the processing. 4. The graphic processing apparatus according to claim 3, wherein a skeleton graphic based on a line core to be obtained is obtained. 5. A figure processing device for moving a skeleton figure created based on a line core, wherein a skeleton figure based on a skeleton to be processed is obtained, and the obtained skeleton figure is placed at a required position. A graphic processing apparatus comprising: a moving processing means; and an output means for outputting a drawing including a body figure moved by the processing means.