JPH0736961A - Grid point generating system - Google Patents

Abstract

PURPOSE:To generate grid point in each rectangular area with less indication by reducing rectangles, which are formed in display positions calculated by plural reference lines and deviation widths from them, by the deviation widths to generate grid point at equal intervals. CONSTITUTION:With respect to design of a building or the like in CAD, pairs of plural horizontal and vertical reference lines, which are inputted from an input means 3 and indicate partitions, and deviation widths of walls or the like corresponding to respective reference lines are stored as line information in a storage part 2. A line display position calculating means 10 of a processing part 1 calculates actual display positions from this line information, and a rectangle generating means 11 generates rectangles formed by horizontal and vertical reference lines of line information in calculated display positions. A rectangle reduction means 12 uses corresponding deviation widths of line information of reference lines forming the rectangles to generate rectangles reduced by deviation widths, and a grid point generating means 13 generates grid point at equal intervals in these reduced rectangles, and lines and grid point generated by the line display position calculating means 10 and the grid point generating means 13 are displayed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grid point generator for various CAD designs. In recent years, CAD (Computer Aided Des) that designs buildings such as houses and various devices
ign) is known. In such a CAD system, there are cases where grid points representing a fixed length or area serving as a reference are displayed inside the figure. These lattice points are effectively used in designing articles, etc. to know the placement position, occupied area, mutual relationship, etc.

[0002]

2. Description of the Related Art FIG. 8 is a diagram for explaining a conventional method. CA for various buildings (reinforcing bar, wooden) and product design
In the case of D, a method of displaying grid points representing scales on a display is used.
If the object of the design is a building, a rectangular area representing a room partitioned by partitions such as walls is provided, and grid points are displayed at regular intervals (for example, every 90 cm) in the rectangular area. There is. 8A. The example shown in (1) represents the plane of rectangular areas a to d representing a plurality of rooms and the like partitioned by walls 80 on a floor of a building. When equipment is installed in each rectangular area of a building like this, its location and occupied area can be identified using this grid point as a guide, and the location can be entered. be able to. In particular, when inputting using grid points, operating the cursor to indicate the vicinity of the displayed grid point inputs the correct coordinate position of the grid point (this is called sucking).

The grid points are equidistant within the rectangle, but are not equidistant from the grid points in the adjacent rectangular areas. For example, the interval between the rightmost grid point column x of the rectangular area a and the leftmost grid point column y of the rectangular area b is not equal to the grid point spacing in the rectangular area due to the partition wall. Further, like the rectangular area d in FIG. 8, grid points may be generated at intervals different from the inside of the other rectangular area c.

Conventionally, since the grid points of each rectangular area are generated at equal intervals as described above, B.B. The method shown in is used. First, a rectangular area c surrounded by lines x2 and y2 having a predetermined distance in the vertical and horizontal directions is defined with an origin being a point where the vertical and horizontal lines x1 and y1 intersect. This definition is the diagonal point P (origin) that represents a rectangle on the display.
This is done by designating the coordinates of Q and Q with a mouse or tablet. When arranging the adjacent rectangular area d on the right side by the distance of the wall thickness L with respect to the defined rectangular area c, the line along the right end of the rectangular area c is set to the length L.
A rectangular area d is defined in which a line shifted to the right by a line is a horizontal line x3 and a vertical line is a line y2. Similarly, the rectangular areas a and b can also be defined by an input operation on the display screen using lines shifted in the vertical direction or the horizontal direction.

The grid points in each rectangular area can be sequentially generated by obtaining points at equal intervals in the lines forming the rectangular area defined in each rectangular area.

[0006]

As described above, in order to generate grid points for each rectangular area, a large number of rectangular areas are generated when the positions where the reference lines deviate vertically and horizontally intersect vertically and horizontally. There is a problem that the input operation takes time and labor because it occurs after being defined by individually specifying (the number of vertical positions × the number of horizontal positions).

It is an object of the present invention to provide a grid point generator which can generate grid points of each rectangle with a small number of instructions even when a plurality of rectangular areas are arranged with an arbitrary shift width. .

[0008]

FIG. 1 is a basic configuration diagram of the present invention, and FIG. 2 is an explanatory diagram of the principle of a method for generating a plurality of grid points according to the present invention.

In FIG. 1, 1 is a processing unit, 2 is a storage unit,
Reference numeral 3 is an input means, and 4 is a display means. In the processing unit 1, 10 is a line display position calculating means, 11 is a rectangle generating means,
Reference numeral 12 is a rectangle reducing means, and 13 is a grid point generating means.

According to the present invention, a reference line representing a reference position is provided with information on the width of deviation from the reference line, and a plurality of directions can be given to the reference line in the vertical and horizontal directions to form a rectangle formed by the intersections thereof. On the other hand, by reducing the rectangle by the offset width of each line and generating grid points for the reduced rectangle, grid points are generated for each rectangular area with a small number of instructions.

[0011]

First, three principles of the grid point generating method according to the present invention will be described with reference to FIG. The present invention is a reference line (or a shift line) with respect to a straight line that represents a side of a rectangular area that represents a room or the like.
The principle is to add the distance to the side of the rectangular area to this reference line as deviation width information.

Referring to FIG. In the first method shown in, the absolute position (position from the origin of coordinates) is set by using the lines on the horizontal and vertical sides farther from the origin of coordinates of each rectangle as the reference line, and each rectangular area is set. This is the method to specify. That is,
The positions of the reference lines x1, x2, ... In the vertical direction (represented by X coordinate values) and the positions of the reference lines y1, y2, ... In the horizontal direction (Y
A coordinate width) is set, and the deviation width (thickness of wall, etc.) information to the side of the adjacent rectangle (rectangle away from the origin) is added to each reference line.

In this case, the vertical and horizontal lengths of the rectangular areas adjacent to the right of the rectangular area having the reference line x1 as the right end are d1 and d.
2 and the shift width is c1 in the vertical direction and c2 in the horizontal direction, the absolute position of the reference line x2 is “x1 + d1 + c1”, and the reference line y2 is the value of “y1 + d2 + c2”. It is determined according to the shift width and the size of the rectangle. The deviation widths are added to the determined values of the respective reference lines to set, and the grid points are generated using the set values.

FIG. 2B. In the second method shown in, the reference line is set within the interval between two adjacent rectangular areas (top / bottom or left / right), and the value is entered as an absolute position (position from the origin) and This is a method in which deviation width information is added to each side of the reference line and input.

B. As shown in, the vertical reference line x
1'has a shift width b2 with respect to the left side of the right rectangle, and the reference line x2 'has a shift width a2 with respect to the right side of the rectangle adjacent to the left side.
And a position having a shift width b2 with respect to the left side of the rectangle adjacent to the right side (the horizontal interval of the rectangle is a2 +
b2). Similarly, the horizontal reference line y1 ′ is located at a shift width b1 with respect to the lower side of the upper rectangle, and the reference line y2 ′ has a shift width a1 with respect to the upper side of the lower rectangle (the vertical spacing between the rectangles is a1 + b1). In this way, the absolute positions of the horizontal and vertical reference lines and the shift widths on both sides (left / right and top / bottom) adjacent to each other are input, and grid points are generated using the set values.

Referring to FIG. The third method shown in (1) is a method of designating the position of the displaced line by the distance from the immediately preceding line. That is, C.I. When the reference line (x1 ″, y1 ″) closest to the origin is designated as shown in, the reference lines (x2 ″, y2 ″) adjacent to the reference line are the above-mentioned reference lines (x1 ″, y).
1 ") to the side of the origin of the rectangle (b1 or b2 shown in C.), the length of the rectangle (s1 or s2 shown in C.), and the deviation width on the opposite side of the origin (shown in C.). a1 or a2) are sequentially added, and each subsequent reference line can be calculated by the same method.

The grid points can be generated by the basic configuration of FIG. 1 by using each of the methods described above. First, the input means 3 inputs necessary data corresponding to one of the first to third methods. The input data is stored in the storage unit 2.

When the line display position calculating means 10 operates with necessary data input, the absolute positions of the reference lines (shifted lines) are input in advance in the first and second methods. Although the calculation is not performed, in the case of the third method, the deviation width in the origin direction is set at the position of the first reference line (horizontal reference line y1 ″ and vertical reference line x1 ″) set in the storage unit 2. (B2 or b1), the length of the rectangle (d1 or d
2) and the deviation width (a2 or a1) in the direction opposite to the origin are sequentially added. Thereafter, the numerical values set in the same manner are added to the sequentially obtained reference lines to calculate the display position of each reference line and store it in the storage unit 2.

Next, the rectangle generating means 11 generates a rectangle for each reference line stored in the storage unit 2 by using the deviation width information added to each reference line. 2A. In the case of the first method shown in (1), a rectangle having the reference line x1 and the reference line x2 as both sides and the reference line y1 and the reference y2 as upper and lower sides is generated. This rectangle is represented by the coordinates of the diagonal points. That is, it is realized by generating coordinates of a point where the reference lines x1 and y1 intersect and a point where the reference lines x2 and y2 intersect. Each other rectangle can be generated using each reference line as well.

In the second method, the rectangle generating means 11 is similar using the absolute positions of the reference lines (x1 ', x2' ... And y1 ', y2' ...) Input to the storage unit 2. Then, the diagonal points of each rectangle surrounded by the left, right, top and bottom reference lines are generated. Also in the third method, the reference lines (x1 ″, x) obtained by the line display calculation means 10 and stored in the storage unit 2 are also used.
2 "... and y1", y2 "...) are used to generate diagonal points of each rectangle surrounded by left, right, upper and lower reference lines as in the case of the second method. You can

Next, the rectangle reduction means 12 reduces each rectangle generated by the rectangle generation means 11 to generate a rectangular area (representing a space such as a room) which is an area in which grid points are actually generated. That is, in the case of the above-mentioned first method, for the rectangle generated by the rectangle generating means 11, the A.D. As shown in, the deviation width (c
, C2), and a reduced rectangular area (shown by diagonal lines in A. of FIG. 2) surrounded by the shift line and the reference line on the right side and the upper side is generated.

In the case of the second method and the third method, the rectangle reduction means 12 reduces the vertical and horizontal displacements of the rectangle generated by the rectangle generation means 11 by the diagonal lines. Generate a rectangular area. B. of FIG. In the case of, in the case of a rectangle formed by the reference lines x1 ′, x2 ′ and y1 ′, y2 ′, the left side is reduced by the right side shift width b2 and the right side is reduced by the left side shift width a2 in the vertical direction. With respect to the direction, the lower side is shrunk upward by a shift width b1 and the upper side is shrunk downward by a shift width a1 to generate a rectangular area indicated by diagonal lines. This rectangular area is also represented by diagonal points.

With respect to the rectangular area (reduced rectangle) obtained by the rectangle reducing means 12, the grid point generating means 13 then generates the coordinates of grid points at equal intervals. Since the rectangular area is specified for the generation of the grid point coordinates, it is possible to generate grid points at equal intervals covering the entire rectangular area by using the conventional technique.

Each grid point generated by this grid point generating means 13 and each reference line stored in the storage unit 2 (input by the input means 3 in the first and second cases, input value by the third method) Based on the line display position calculation means 10) is displayed on the display means 4.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 3 is a hardware block diagram for implementing the present invention. In FIG. 3, 20 is a central processing unit (CP
U) and 21 are storage devices, 22 is a display (display device), and 23 is an input device composed of a keyboard, a mouse and the like.

FIG. 4 is a processing flow of the embodiment, and FIG. 5 is an explanatory diagram of rectangle calculation. Referring to FIG. 4 below, first, line information is input from the input device 23 to the storage device 21 (S1 in FIG. 4). The format of the line information input at this time is the following line information corresponding to each method shown in FIG.

In the case of the first method The line format is data indicating horizontal and vertical, and is an absolute position (P) from the origin. If the line format is horizontal, it is a Y coordinate value, and if it is vertical, it is an X coordinate value. The shift width c (vertical direction c1, horizontal direction c2 in the example of A. of FIG. 2) is a width displaced at the position of the line.

In the case of the second method In this method, each reference line is input as an absolute value by an absolute value, and at the same time, a deviation width for each side is input. The line format in this case is data indicating horizontal and vertical, and the absolute position from the origin is (P). If the line format is horizontal, the Y coordinate value is used, and if it is vertical, the X coordinate value is used. Further, the deviation width on the origin side is b (b1, b2 in the example of B. and C. in FIG. 2), and the deviation width on the side opposite to the origin is a (a1, b1 in the example of B. and C. in FIG. 2). a2).

In the case of the third method In this method, the position of a line that deviates is designated by the distance from the immediately preceding line, and the line format is data indicating horizontal and vertical. The distance from the immediately preceding reference line is s. This distance s is an inner dimension excluding the deviation width. C. of FIG. In the case of the example shown in FIG. 3, the information of the line of the reference line x2 ″ is the distance s2 and the deviation width a2 on the origin side and the deviation width b2 of the opposite side, and the deviation width b2 is included in the information of the reference line x1 ″. .

As described above, when the required number of input line information is repeatedly input, the line information is stored in the storage device 21. When the input is completed, the actual display position is calculated from the line information (S2 in FIG. 4).

The calculation of the line display position is performed as follows according to each method shown in FIG. In the case of the first method and the second method, since the information of the line input and input to the storage device 21 is the coordinates of the absolute value from the origin, the display position of the reference line is the position of each line in the storage device. Matches the absolute value (however, the coordinates represented by the actual absolute value are usually reduced for display).

In the case of the third method, the following calculation is performed. Line display position = sum of s of all line information on the origin side +
Sum of all line information (a) on the origin side (excluding on the origin) + Sum of all line information (b) on the origin side + Own information s + Own information a Total value (all s on the origin side,
The calculation for obtaining a and b) is to obtain the length (distance) to the reference line immediately before the own information (the reference line for which the position is to be obtained), and each reference line (C. in FIG. 2). x1 ", x
The display positions of 2 "..., y1", y2 "...) can be sequentially obtained by this calculation.

Next, the diagonal points of the rectangle are obtained from the intersections of the display positions of the lines (S3 in FIG. 4). The diagonal point of this rectangle is S
It is obtained by obtaining the intersection of each vertical and horizontal reference line obtained in 2 and selecting (calculating) the diagonal points (two intersections) of the rectangle surrounded by the line.

When the diagonal points of the rectangle based on the reference line are obtained,
The diagonal points of the rectangle are reduced by the shift width toward the center of the rectangle (S4 in FIG. 4). This processing is performed as follows according to each method of FIG. 2 and will be described with reference to FIG. The reference numerals shown in FIG. 5 correspond to the same reference numerals in FIG.

In the case of the first method The deviation width (c) in the information on the origin side line (horizontal and vertical) surrounding the rectangle is retrieved from the storage device 21, and the diagonal point on the origin side of the rectangle (obtained in S3 above) is obtained. Point) is moved in the direction opposite to the origin by the shift width, and the rectangle is reduced to obtain a rectangular area (its diagonal point) representing the actual space (room, etc.).

This state is shown in FIG. 5, and a rectangle whose diagonal points are the intersections of the lines x1 and y1 and the intersections of the lines x2 and y2 is reduced by the shift widths c1 (vertical direction) and c2 (horizontal direction), respectively. As a result, a rectangular area indicated by diagonal lines is obtained. The diagonal point on the origin side of this rectangular area is (x1 + c2, y1 + c1), and the diagonal point on the opposite side of the origin is (x2, y2).

In the case of the second and third methods, the deviation widths (b1, b2) added to the information of the reference line (horizontal and vertical) on the origin side surrounding the rectangle and the reference on the side opposite to the origin side surrounding the rectangle The shift width (a1, a2) in the line information is retrieved from the storage device 21. Then, the diagonal point on the origin side of the rectangle is moved in the direction opposite to the origin by the shift width (b1, b2) to reduce the rectangle, and the diagonal point on the side opposite to the origin of the rectangle is shifted by the shift width (a1 , A2) in the direction of the origin to reduce the rectangle and obtain the actual rectangular area (its diagonal point).

This state is shown in FIG. Shown in. In addition,
In this figure, each reference line x1 ', x2' ..., y1 ', y
2 '... is displayed as the reference line for the second method,
Each reference line (x1 ", x2" in the case of the third method)
···, y1 ″, y2 ”··) In this case, a rectangle whose diagonal points are the intersections of the lines x1 ′ and y1 ′ and the lines x2 ′ and y2 ′ has widths b1 (vertical direction) and b2 on the origin side.
It is reduced by (horizontal direction) and reduced by widths a1 (vertical direction) and a2 (horizontal direction) on the side opposite to the origin to obtain a rectangle indicated by diagonal lines. As shown in the figure, the diagonal points of the reduced rectangle are (x1 '+ b2, y1' + b1) on the origin side and (x2'-a2, y2'-a1) on the opposite side to the origin.

When the reduced rectangles (diagonal points) are obtained as described above, the positions of grid points at equal intervals are calculated for each rectangle (S5 in FIG. 4). The position of this grid point is
Since the position and area of the rectangle are determined by the diagonal points,
Lattice points at equal intervals (intervals are set in advance) are generated in the area by a method similar to the conventional method.

Finally, the display position of the line obtained in S2 of FIG. 4 and the grid point obtained in S5 are output to the display device (display (display device) 22 of FIG. 3) (S6 of FIG. 4). .

As in the second and third methods of the present invention, by allowing the deviation widths on both sides of the reference line to be designated, the reference line itself can be used as a guideline for inputting and sucking input coordinates. It is easy to use. In addition, like the third method, by specifying the position of the line not by absolute coordinates but by the distance (the distance s excluding the deviation width) from the immediately preceding line in the origin direction, the deviation width can be changed, When inserting or deleting a new line, the display position of the line farther from the origin than the original line can be redisplayed so that it does not conflict.

FIG. 6 shows an example of changing a vertical line according to the third method. A. State is the vertical reference line 0, 1,
Line 2 is shown, and in particular with respect to line 1, a distance 1 and offset widths a and b on both sides are given. In this state, when the line 1 is deleted, the distance 1 and the shift widths a and b included in the information of the line 1 are deleted, so that B.B. As shown in, a line 2 having a distance 2 and a shift width on both sides is arranged immediately after the line 0 to form a new rectangle (horizontal line is not shown),
On the other hand, grid points can be generated.

Further, in FIG. In the above state, even when the displacement width a of one of the lines 1 is changed to the displacement width a + α, by changing the displacement width included in the information of the line 1, the C.I. It is possible to form a new rectangle (horizontal lines are not shown) as shown in FIG.

FIG. 7 is a diagram showing a design example in the housing design according to the present invention. The center line of the wall and its extension are the reference lines, and the offset width is provided on both sides. The side of the wall is input on the line that specifies the position to shift the grid point. Chair,
Lattice points that are shifted can be used when arranging furniture such as desks. It should be noted that this figure does not show how the wall offset width is changed.

[0045]

According to the present invention, the following effects can be obtained. In the architectural screen that will be displaced if there is a wall,
Grid points at equal intervals can be easily input, and the positions of walls and the like can be indicated by lines with deviations.

In the CAD system, when the reference intervals are different for each rectangular section of the drawing, it is possible to display the grid points indicating the reference positions with different intervals and the rectangular section line. In housing design, it is possible to easily create a drawing in which modules are displaced due to walls, and the generated grid points and lines are
It can be used for suction correction of the input coordinate position such as wall input.

[Brief description of drawings]

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

FIG. 2 is a diagram illustrating the principle of a method for generating a plurality of grid points according to the present invention.

FIG. 3 is a hardware configuration diagram of the embodiment.

FIG. 4 is a processing flow chart of the embodiment.

FIG. 5 is an explanatory diagram of rectangle calculation.

FIG. 6 is a diagram showing an example of changing a vertical line according to a third method.

FIG. 7 is a diagram showing a design example in a house design according to the present invention.

FIG. 8 is a diagram illustrating a method of a conventional example.

[Explanation of symbols]

 1 Processing Unit 10 Line Display Position Calculation Means 11 Rectangular Generation Means 12 Rectangular Reduction Means 13 Lattice Point Generating Means 2 Storage Units 3 Input Means 4 Display Means

Claims (4)

[Claims] 1. In a grid point generation method for designing a building or the like by CAD, a plurality of horizontal / vertical reference lines representing partitions input from an input means and a deviation width of a wall or the like corresponding to each reference line. And a line storage position calculating means for calculating an actual display position from the line information, and a horizontal / vertical reference line of the line information with respect to the calculated display position. A rectangle generating means for generating a rectangle formed by the above, a rectangle reducing means for generating a rectangle reduced by a shift width using a corresponding shift width from the line information of a reference line forming the generated rectangle, and the reduction Grid point generating means for generating grid points at equal intervals for the created rectangle,
A grid point generation method comprising: the line display position calculation means and a display means for displaying the lines and grid points generated by the grid point generation means. 2. The line information input from the input means according to claim 1, wherein a line along one side of a rectangle representing a room or the like is used as a reference line, its absolute position, and a rectangle adjacent to the reference line. The line display position calculation means extracts the absolute position of each reference line as a line display position, and the rectangle reduction means. Is a one side of a rectangle reduced by a line at a position where a shift width corresponding to the absolute position of each of the reference lines is added. 3. The line information input from the input means according to claim 1, wherein a line provided between a side of a rectangle representing a room or the like and a side of a rectangle adjacent to the side is its absolute position and the reference. The line display position calculation means stores the line information in the storage unit, and the two shift widths represent the lengths of the sides of two rectangles adjacent to both sides of the line. Is extracted as a line display position, and the rectangle reduction means sets the two sides of the rectangle reduced by the line at the position where the deviation width on both sides corresponding to the absolute position of each reference line is added or subtracted. The grid point generation method. 4. The line information input from the input unit according to claim 1, is adjacent to both sides of the reference line with a line provided between a side of a rectangle representing a room etc. and a side of an adjacent rectangle as a reference line. Each line information is composed of two shift widths that represent the lengths of the two rectangles and the length of the rectangle that represents each room. The absolute position is added only to the first reference line. Is stored in the storage unit, and the line display position calculation means adds the deviation width to the absolute position of the first reference line,
The grid point generating method is characterized in that the display position of each reference line thereafter is calculated by sequentially adding the lengths and shift widths of the rectangles of the adjacent reference lines.