JP3470974B2 - Figure creation method and apparatus - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction drawing or the like using a CAD system or the like, and more particularly to a method and apparatus for forming a skeleton figure such as a pillar, a wall or a beam.

[0002]

2. Description of the Related Art Conventionally, by drawing (tracing) a drawing set on a digitizer, the drawing in the drawing is CA.
In the case of D drawings, the commands of continuous general wall and continuous general beam are used for (1) walls and beams without core lines and (2) non-horizontal and non-vertical walls and beams, respectively. . The continuous general wall command and the continuous general beam command are commands that can continuously create walls and beams at arbitrary positions without using the core as a reference.

FIG. 12 shows a process corresponding to a conventional continuous general wall command. First, in step S101,
The operator inputs parameters such as the wall width and the upper and lower limits of the height of the wall to the window as shown in FIG. 13, for example. Next, the operator designates the end points of the wall to be created (step S102). FIG. 14 shows the point P1 designated in step S102,
P2 and P3 are shown in relation to the lines TL1 and TL2 drawn in the drawing set on the digitizer. When the end point designation is completed (YES in step S103), C
The PU creates a continuous general wall based on the parameters input in step S101 and the points designated in step S102. The continuous general wall means a wall that can be continuously formed at an arbitrary position without using the core as a reference.

[0004]

In the wall creating method of FIG. 12 described above, the end points of the wall to be created are designated, but in reality, in the drawing to be traced, the end points (or end point positions) of the wall are indicated. However, it was very inconvenient when giving instructions, and it caused a large error.

The present invention has been made in order to solve such a conventional problem, and creates a figure by pointing a line segment which constitutes a body figure that is always present in a drawing to be traced. It is an object of the present invention to provide a graphic creation method and device capable of performing the above.

[0006]

[0007]

[Means for Solving the Problems]The present inventionHow to create shapes
Is a graphic creation method for creating a graphic using a graphic creation device.
AndThe operator controls the figure creation device's control means.
Instructed by the indicating means,Specify the placement position of the line segment to be created
To specify the distance between the first segment and the line segment
Second pointStoring step for storing in the storage means(example
For example, step S44 in FIG. 5)And the control means is the storage means
Remembered inOf the first pointsTo the operator
In the order indicated byTwo pointsRead, the two points
ToCreate the first line segment that passesFirst creating step(example
For example, step S44 in FIG. 5)When,The control meansFirst line
Minutes and the distance between the second point and
(S45),At the position separated from the first line segment by the distance,
Create a second line segment parallel to the first line segmentThe second creation step
Up(For example, step S46 in FIG. 5)When,Control means
Is stored in the storage meanspluralFirstOut of the points
In the order instructed by the operator,Line segment has been created
AbsentNext instructionJudge whether there is a pointDecision step
(For example, step S47 in FIG. 5)When,In the judgment step
In advanceIf it is determined that the line segment has not been created,
IfThe control means isThat pointRead from storage means, First
Create a third line segment that passes through a point on one end ofThe third work to do
Successful step(For example, step S48 in FIG. 5)When,control
MeansAt the position separated from the third line segment by the distance,
Create a fourth line segment parallel to the line segment4th creation step
(For example, step S49 in FIG. 5)When,The control meansCompound
All points of the number of points are
The line segment 3 is the new first line segment, and the new third line segment is
Create a figure by creating4th creation step
The(For example, steps S47 to S50 in FIG. 5)Including and
MuCharacterized by

The figure creating method of the present invention is a figure creating method for creating a figure by using a figure creating apparatus, in which a parameter set by an operator is read according to a parameter setting command (eg, step S43 in FIG. 5) and created. The operator specifies a plurality of first points for specifying the arrangement position of the line segment and a second point for specifying the distance between the line segment (for example, step S44 of FIG. 5), and the plurality of first points. Of the points, the first line segment passing through at least two points is created (for example, step S44 of FIG. 5), and the distance between the first line segment and the second point is obtained (for example, FIG. Step S4
5) Then, a second line segment is created parallel to the first line segment at a position separated from the first line segment by a distance (for example, step S46 in FIG. 5), and the line segment among the plurality of points is It is determined whether there is a point that has not been created (for example, step S4 in FIG. 5).
7) If it is determined that there is a point for which a line segment has not been created, a third line segment that passes through that point and a point at one end of the first line segment is created (for example, step S48 in FIG. 5). ), At a position separated from the third line segment by a distance, a fourth line parallel to the third line segment
(For example, step S49 in FIG. 5), the third line segment is set as a new first line segment until all the points of the plurality of points are included in the line segment, , A graphic is created by creating a new third line segment based on the parameters (for example, steps S47 to S50 in FIG. 5).

[0009]

A graphic creating apparatus of the present invention is a graphic creating apparatus for creating a graphic, which is instructed by an operator.
A plurality of first points that specify the arrangement position of the line segment to be created,
A memory that stores a second point for specifying the distance from the line segment
Means (for example, step S44 in FIG. 5) and storage means.
The operator selects one of the stored first points .
Two points were read in the order instructed and read
First creating means (eg, step S44 in FIG. 5) for creating a first line segment passing through the two points , and a first line segment,
A second line segment is created in parallel with the first line segment at a position distant from the first line segment by a calculation means (for example, step S45 in FIG. 5) for obtaining the distance to the second point. Second creating means (for example, step S46 in FIG. 5) and storage means
Among the plurality of points stored in the finger by the operator
In the order shown, there is a judgment means (for example, step S47 in FIG. 5) for judging whether there is a next designated point for which a line segment has not been created, and a point for which a line segment has not been created by the judgment means. If it is determined that the point and a third line segment that passes through a point at one end of the first line segment, a third creating unit (for example, step S48 in FIG. 5) and a third creating unit. At a position separated by a distance from the third line segment created by
And a fourth creating means (for example, step S49 in FIG. 5) that creates a fourth line segment parallel to the line segment until all the points are included in the predetermined line segment. , A third line segment is used as a new first line segment, and a new third line segment is created to create a graphic (for example,
And steps S47 to S50 of FIG. 5).

[0011]

[0012]

In the figure creating method of the present invention, the operator specifies the plurality of first points for specifying the arrangement positions of the line segments to be created and the second points for specifying the distance between the line segments. , A first line segment that passes through at least two of the plurality of first points is created, and the first line segment and the second line segment are created.
The distance to the point is obtained, and a second line segment is created parallel to the first line segment at a position apart from the first line segment by a distance,
If it is determined whether or not there is a line segment that has not been created among a plurality of points, and it is determined that there is a line segment that has not been created, that point and one end of the first line segment A third line segment passing through the points is created, and a fourth line segment parallel to the third line segment is created at a position apart from the third line segment by a distance, and all the points of the plurality of points are , Until the point included in the line segment is the third
A graphic is created by setting the line segment of No. 3 as a new first line segment and creating a new third line segment. First point and second
Since the point is always present in the drawing to be traced, the instruction is easy and the input error can be reduced. In addition, it is not necessary to read the above distance from the drawing (measured on a scale if not specified in the drawing) and input it.
Input efficiency is improved.

In the figure creating method of the present invention , the parameter set according to the parameter setting command is read, and the distance between the line segment and the plurality of first points that specify the placement position of the created line segment is calculated. A second point for designating is designated by the operator, and among the plurality of first points,
A first line segment that passes through at least two points is created, the distance between the first line segment and the second point is calculated, and the first line segment is located at a distance from the first line segment. Second parallel to the minute
Line segment is created, it is determined whether or not there is a point for which a line segment has not been created among multiple points, and if it is determined that there is a point for which a line segment has not been created, that point, A third line segment passing through a point at one end of the first line segment is created, and a fourth line segment parallel to the third line segment is created at a position separated from the third line segment by a distance. By setting the third line segment as a new first line segment and creating a new third line segment based on the parameters until all the points of are the points included in the line segment. , A graphic is created. Since the parameters need only be set according to the setting commands, it is not necessary to operate the keyboard during tracing of the drawing, improving operability and the point to be processed is always present in the drawing to be traced. Is easy and the input error can be reduced.

[0014]

In the figure creating apparatus of the present invention, the operator specifies a plurality of first points for specifying the arrangement positions of the line segments to be created and a second point for specifying the distance between the line segments. , A first line segment that passes through at least two points of the plurality of first points is created, and the first line segment,
A distance to the second point is calculated, a second line segment is created parallel to the first line segment at a position separated from the first line segment by a distance, and a line segment is created from the plurality of points. If it is determined whether or not there is a point that has not been created, and it is determined that there is a point that has not been created, then that point and the third line segment that passes through the point at one end of the first line segment A fourth line segment that is created and parallel to the third line segment is created at a distance from the third line segment.
Until all the points of the multiple points become the points included in the line segment,
A graphic is created by setting the third line segment as a new first line segment and creating a new third line segment. Since the first point and the second point are always present in the drawing to be traced, the instruction is easy and the input error can be reduced. In addition, since it is not necessary to read the distance from the drawing (measured on a scale if not clearly shown in the drawing) and input, the input efficiency is improved.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of an embodiment of the figure forming 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 a hard disk 1 in which skeleton graphic data such as architectural drawings are stored in advance, and various commands for creating architectural drawings, such as wall setting commands and wall creation commands, and instructing skeleton figures. Moreover, when the operator traces the set drawing or points the points on the drawing, the keyboard 2 and the mouse 3 which can input the parameters of the skeleton figure, etc. A digitizer 3D that outputs the coordinates indicating points,
When the command, parameters, coordinates, etc. input from the keyboard 2, mouse 3, and digitizer 3D are fetched, the parameters set according to the wall setting command are read and stored, and the wall creation mode is entered by inputting the wall creation command. Then, create a line segment that passes through the point designated via the digitizer 3D, and use the stored parameters to create a wall based on the created line segment C
It is composed of an AD main body 4, a display 5 for displaying a graphic created by the CAD main body 4, and a plotter 6 for outputting the graphic as a construction drawing on a recording paper.

The CAD main body 4 reads the parameters set according to the wall setting command and stores them in the RAM 9 which will be described later, and is instructed via the digitizer 3D when it is in the wall creating mode by the input of the wall creating command. A CPU 7 that creates a line segment passing through a point and creates a wall based on the created line segment using the stored parameters.
A ROM 8 for storing a CAD program for the CPU 7 to perform such processing; a RAM 9 which is a work area for creating the line segment and the wall; a CAD main body 4 and the input / output device (hard disk 1, keyboard 2, mouse). 3, a digitizer 3D, a display 5 and a plotter 6), and an interface 10 for transferring data and the like.

The RAM 9 is loaded with a key from the operator.
When a wall setting command is input via the keyboard 2 or the mouse 3, the wall setting flag storage area 9a in which the wall setting flag is set, and a wall creation command from the operator via the keyboard 2 or the mouse 3 Is input, a wall creation flag storage area 9b in which the wall creation flag is set, and a parameter storage that stores parameters related to the wall input from the operator via the keyboard, that is, the upper limit value and the lower limit value of the wall height. An area 9c and a designated point storage area 9d for storing the coordinates of a point designated by the digitizer 3D are provided. Further, the RAM 9 is provided with an area of a video RAM 9e, and by writing graphic data in the video RAM 9e, a graphic such as an architectural drawing is displayed on the display 5.

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 instruction delimiter, button 3 is for inputting cancel, and button 4 is Is YES / NO
To input the command.

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 inputs a wall creation command from the keyboard 2. In response to this, the CPU 7 sets the wall creation flag in the wall creation flag storage area 9b of the RAM 9. Then, in step S1, the operator traces the two line segments (broken lines TL1 and TL3 in FIG. 3) of the wall of the set drawing, and points the end points P1, P2, and P3 of these line segments by the digitizer 3D. By doing so, the location of the wall is designated. The CPU 7 stores the coordinates of the designated points P1, P2 and P3 in the designated point storage area 9d of the RAM 9. In addition, in FIG. 3, a broken line TL2 is another line segment of the wall drawn in the set drawing, and E1, E2, and E3 indicate end points of the wall in the set drawing,
These endpoints are usually not shown in the drawing.

When the point designation is completed, the operator operates the button 2 (B2) of the mouse 3 (Y in step S2).
ES), by tracing another line segment (broken line TL2 in FIG. 3) of the wall of the set drawing and pointing the point W1 in the line segment by the digitizer 3D (see FIG. 4), the width of the wall Is instructed (step S3). The coordinates of the designated point W1 are stored in the designated point storage area 9d of the RAM 9 by the CPU 7. Then, the CPU 7
Points P1 and P2 stored in the designated point storage area 9d of AM9
And a continuous general wall is created based on P3 and W1 (step S4).

FIG. 5 shows an example of a specific process for creating a continuous general wall in step S4 of FIG. Here, it is assumed that the operator has set the parameters for the wall in advance. The parameter setting process will be described. First, the operator inputs a wall setting command via the keyboard 2. In response, C
The PU 7 sets the wall setting flag in the area 9a of the RAM 9, sets the graphic creation device in the wall setting mode, and displays the wall setting window 60 shown in FIG. The operator inputs the upper limit value and the lower limit value of the height of the wall into the predetermined area of the wall setting window 60 from the keyboard 2 (step S41). In response to this, the CPU 7
RAM for the upper and lower limits of the input wall height
9 in the parameter storage area 9c (step S4)
2).

Returning to the explanation of the continuous general wall forming process, first, the CPU 7 reads the upper limit value and the lower limit value of the wall height in the parameter storage area 9c of the RAM 9 (step S).
43). Next, the CPU 7 reads the coordinates of the pointing points P1 and P2 stored in the pointing point storage area 9d of the RAM 9, and the wall line segment L1 connecting these points P1 and P2.
Is created and stored in the video RAM area 9e of the RAM 9 (step S44). Next, the CPU 7 obtains the distance (wall width) between the wall width indication point W1 and the wall line segment L1 stored in the indication point storage area 9d of the RAM 9, and the obtained distance is stored in the RAM.
It is stored in a predetermined area 9 (step S45). Figure 8
Parameters set as shown in FIG. 7 (pointing point P1,
A state in which a wall line segment L1 is created based on P2 and P3 and the wall width designated point W1) and the distance (wall width) is obtained is shown.

Next, the CPU 7 creates the remaining wall line segment L2, that is, the wall line segment L2 parallel to the wall line segment L1, from the positions of the wall line segment L1, the wall width and the wall width designating point W1, and the RAM 9
Stored in the video RAM area 9e (step S4)
6). FIG. 9 shows a state in which the wall line segment L2 has been created.

Since the unprocessed next designated point P3 remains (YES in step S47), the CPU 7 stores the next designated point P3 and the previous designated point P2 stored in the designated point storage area 9d of the RAM 9. Read the coordinates and set these points P
A wall segment L3 connecting 3 and P2 is created and stored in the video RAM area 9e of the RAM 9 (step S48). Next, the CPU 7 causes the remaining wall line segment L4 parallel to the wall line segment L3.
Is created and stored in the video RAM area 9e of the RAM 9 (step S49). FIG. 10 shows wall line segments L3 and L4.
Shows the created state.

Next, the CPU 7 causes the wall line segment L4 and the wall line segment L
An intersection X with 2 (see FIG. 10) is obtained, trim processing is performed, and the resulting graphic is stored in the video RAM area 9e of the RAM 9 (step S50). The CPU 7 performs steps S47 to S5 while the unprocessed designated points remain.
When the processing of 0 is repeated and there is no unprocessed designated point (NO in step S47), the processing is terminated and finally R
The graphic stored in the video RAM area 9e of the AM 9 is displayed on the display 5, and when the operator inputs a print command via the keyboard 2, the plotter 6 prints the graphic.

In the above embodiment, the CPU 7 and the ROM 8 create a line segment passing through the point to be processed and create a graphic including this line segment. However, instead of the CPU and ROM, it is dedicated. Hardware may be provided. Further, a line segment creating means for creating a line segment passing through a point to be processed and a figure creating means for creating a frame figure based on the created line segment may be separately provided.

Further, although the above-mentioned embodiment relates to the creation of a wall, the present invention can be applied not only to the wall but also to the creation of various skeleton figures such as beams.

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

[0030]

[0031]

According to the method of creating a graphic of the present invention, an operator operates a plurality of first points for specifying the arrangement positions of line segments to be created and a second point for designating a distance between the line segments. Specified and at least 2 of the plurality of first points
Create a first line segment that passes through two points, and
The distance from the second point is calculated, and a second line segment is created parallel to the first line segment at a position distant from the first line segment by the above distance. If there is a point that has not been created, and if it is determined that there is a point that has not been created, then that point and the third line segment that passes through the point at one end of the first line segment Create a fourth line segment parallel to the third line segment at a position away from the third line segment until all the points of the multiple points are included in the line segment. , The third line segment is set as a new first line segment, and a new third line segment is created to create a figure.
Since the point and the second point always exist in the drawing to be traced, the instruction is easy and the input error can be reduced. In addition, since it is not necessary to read the distance from the drawing (measured on a scale if not clearly shown in the drawing) and input, the input efficiency is improved.

According to the graphic forming method of the present invention , the parameters set according to the parameter setting command are read, and the distance between the line segment and the plurality of first points for specifying the arrangement position of the line segment to be created is specified. The operator designates a second point to do so, and creates a first line segment that passes through at least two points of the plurality of first points. The first line segment and the second point And a second line segment is created parallel to the first line segment at a position distant from the first line segment by the above distance, and among the plurality of points, a line segment is not created. If it is determined that there is a point for which no line segment has been created, a third line segment that passes through that point and one end point of the first line segment is created, and Create a fourth line segment parallel to the third line segment at a position away from the third line segment, and all the points of the plurality of points are Until a point included in the partial, third
Since the line segment of is set as the new first line segment and the figure is created by creating the new third line segment based on the parameter, the parameter may be set according to the setting command. The operability is improved because it is not necessary to operate the keyboard while tracing the drawing.
Further, since the point to be processed is always present in the drawing to be traced, it is easy to give an instruction and the input error can be reduced.

[0033]

According to the graphic drawing apparatus of the present invention , the operator designates a plurality of first points for specifying the arrangement positions of the line segments to be created and a second point for designating the distance between the line segments. ,
Of the plurality of first points, a first line segment that passes through at least two points is created, the distance between the first line segment and the second point is calculated, and the above distance from the first line segment is calculated. A second line segment is created in parallel with the first line segment at a position distant by only, and it is judged whether or not there is a point for which a line segment has not been created among multiple points, and a line segment is created. When it is determined that there is a point that has not been created, a third line segment that passes through that point and one end point of the first line segment is created, and at a position that is separated from the third line segment by the above distance,
Create a fourth line segment that is parallel to the third line segment, and set the third line segment as a new first line segment until all points of the plurality of points are included in the line segment. Since the graphic is created by creating a new third line segment, the first point and the second point are always present in the drawing to be traced, so the instruction is easy and input. The error can be reduced. In addition, since it is not necessary to read the distance from the drawing (measured on a scale if not clearly shown in the drawing) and input, the input efficiency is improved.

[Brief description of drawings]

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

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

FIG. 3 is a diagram showing an example of wall placement position designating points designated in step S1 of FIG. 2 in association with lines in the drawing set on a digitizer.

FIG. 4 is a diagram showing an example of designated points of the wall width designated in step S3 of FIG. 2 in association with the line in the drawing set on the digitizer.

FIG. 5 is a flowchart showing a specific processing example of creating a general wall in step S4 of FIG.

6 is a diagram showing an example of a wall-creating parameter setting window dedicated to tracing used for height setting in step S41 of FIG. 5;

FIG. 7 is a diagram showing an example of wall placement position designating points and wall width designating points used in the processing of FIG. 5;

8 is a diagram showing the line segment created by the process of step S44 of FIG. 5 and the wall width obtained by the process of step S45.

9 is a diagram showing a line segment created by the process of step S46 of FIG.

10 is a diagram showing a line segment created by the processing of steps S48 and S49 of FIG.

11 is a diagram showing a graphic obtained as a result of the trim processing in step S50 of FIG.

FIG. 12 is a flowchart showing a process corresponding to a conventional continuous general wall command.

13 is a diagram showing an example of a window used in the processing of FIG.

FIG. 14 is a diagram showing an example of wall placement position designating points designated in step S102 of FIG. 12 in association with lines in the drawing set on the digitizer.

[Explanation of symbols]

3 mice 3D digitizer 5 display 6 plotter 7 CPU 8 ROM 9 RAM 9a Wall setting flag storage area 9b Wall creation flag storage area 9c Parameter storage area 9d Point storage area

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Fujitsu Limited, OASYS 500GX Operation Manual 2, 90SP-5802-1-2, August 1991, pp. 463-464. Toshiba Corporation, CAD Workstation CS- 300, Command Reference Manual, August 25, 1991, A2 edition, pages 73-74. (58) Fields investigated (Int.Cl. ⁷ , DB name) G06F 17/50 G06T 11/80

Claims (2)

(57) [Claims] 1. A graphic creating method for creating a graphic by using a graphic creating apparatus , wherein a control means of the graphic creating apparatus is an instruction means by an operator.
Instructed by, a plurality of first point to identify the position of the line segment to be created, a storage step of storing in the second storage means a point for specifying a distance between the line segment, said control means Of the plurality of first points stored in the storage means, which is instructed by the operator.
A first creating step of reading two points in order and creating a first line segment that passes through the two points; and the control means sets the distance between the first line segment and the second point. determined, the distance away from the first segment, the first to create a second line parallel to the first line segment
2, and the control means is instructed by the operator from the plurality of first points stored in the storage means .
Sequentially, a judgment step for judging whether or not there is a next designated point for which a line segment has not been created , and when it is judged in the judgment step that there is a point for which a line segment has not been created, the control means, said the point
A third creating step of creating a third line segment that reads from the storage means and passes through a point at one end of the first line segment, and the control means sets the position apart from the third line segment by the distance. , to create a fourth segment parallel to the third line segment
A fourth creating step, and the control means sets the third line segment as a new first line segment until all points of the plurality of points become points included in the line segment, And a fourth creating step for creating the graphic by creating a third line segment. 2. A graphic creation device for creating a graphic, for designating a distance between the line segment and a plurality of first points that specify an arrangement position of the created line segment , which is designated by an operator. reading and storing means, among the stored plurality of first points in the storage means, the two points in the order instructed by the operator to store the second point
First creating means for creating a first line segment that protrudes and passes through the read two points ; computing means for obtaining a distance between the first line segment and the second point; Of the plurality of points stored in the storage unit , a second creating unit that creates a second line segment in parallel with the first line segment at a position separated from the first line segment by the distance. , Before
In the order instructed by the operator, a judgment means for judging whether or not there is a next designated point for which a line segment has not been created, and a case where the judgment means determines that there is a point for which a line segment has not been created , A third creating means for creating a third line segment passing through the point and a point at one end of the first line segment, and the distance from the third line segment created by the third creating means. A fourth creating means for creating a fourth line segment parallel to the third line segment at a position separated by only, and all the points of the plurality of points become points included in the predetermined line segment. Up to the third line segment as a new first line segment and a new third line segment, and a graphic creating means for creating the graphic. .