JP6584137B2 - CAD system for building and CAD program for building - Google Patents

Description

  The present invention relates to a building CAD system and a building CAD program that support building design.

  Patent Document 1 describes a building CAD system for designing a unit type building. When using this building CAD system, a designer first temporarily designates standard designated units such as “standard unit” and “floor unit” and temporarily places them in a predetermined part. Thereafter, the designer changes the temporarily designated standard designated unit to a unit having another attribute as necessary. When there is no need to change, the standard designated unit is arranged as it is in the part.

JP-A-8-106482

  In the building CAD system described in Patent Document 1, both standard specification units and units having other attributes are stored in advance in the component storage means with predetermined dimensions. When using this building CAD system, the designer designates a desired unit from among those stored. In this building CAD system, the shape and size of the unit cannot be freely changed.

  An object of the present invention is to provide a building CAD system and a building CAD program capable of designing a room, an atrium, a veranda or the like with an arbitrary size.

In order to achieve the above object, a CAD system for a building according to the present invention includes:
A rectangular parallelepiped basic unit of a predetermined size with walls on all four sides and a floor on the bottom, a rectangular solid basic unit with a predetermined size with walls on all four sides but no floor on the bottom Unit, rectangular parallelepiped basic unit of a predetermined size with no walls on at least one side and floor on the bottom, and rectangular solid of a predetermined size with no walls on at least one side and no floor on the bottom A basic unit table storing basic unit information including a basic unit type indicating which of the basic units is,
For each unit, a unit arrangement table in which unit arrangement information including basic unit type and information indicating the size and arrangement position is stored.
According to the user's operation, the basic unit information stored in the basic unit table is selected, the basic unit indicated by the basic unit type included in the selected basic unit information is arranged, and the basic unit is expanded or A unit is formed in a reduced size or as it is, and when at least one of two units arranged adjacent to each other has a wall at the boundary between the two units, one wall is disposed at the boundary between the two units, and the formation is performed. A unit placement section for obtaining unit placement information for a position to be placed on the unit to be placed, and storing the created unit placement information in the unit placement table;
It is characterized by providing.

Preferably, the CAD system for buildings of the present invention is
The information included in the unit arrangement information indicating the size and the arrangement position is the internal dimension of the unit and the three-dimensional coordinates of the reference vertex which is one of the vertices on the rectangle facing the inside of the unit on the bottom surface of the unit. Yes,
The unit placement unit obtains the three-dimensional coordinates of the reference vertex of the unit to be formed based on information including the wall thickness and the height of each floor.
It is characterized by that.

Preferably, the CAD system for buildings of the present invention is
As for windows and doors, basic opening identification information for identifying individual basic openings having predetermined basic dimensions and predetermined standard dimensions determined by joinery manufacturers, and basic opening information including the standard dimensions or the basic dimensions. A basic opening table to store,
For each opening, an opening arrangement table in which opening arrangement information including basic opening identification information and information indicating a size and a position to be arranged is stored;
According to the user's operation, the basic opening information stored in the basic opening table is selected, and the basic opening identified by the basic opening identification information included in the selected basic opening information is obtained by the unit placement unit. The unit is placed on the wall of the unit arranged at the position, and the basic opening is enlarged or reduced, or an opening is formed in the wall of the unit as it is, and the position to be arranged with respect to the formed opening is obtained. Creating an opening arrangement information, and storing the created opening arrangement information in the opening arrangement table;
It is characterized by providing.

Preferably, the CAD system for buildings of the present invention is
A module in which the walls of the units arranged on the same plane by the unit arrangement part are combined into one wall, and a hole corresponding to the opening formed by the opening arrangement part is formed in the one wall. A forming unit is provided.

The CAD program for building of the present invention is
A rectangular parallelepiped basic unit of a predetermined size with walls on all four sides and a floor on the bottom, a rectangular solid basic unit with a predetermined size with walls on all four sides but no floor on the bottom Unit, rectangular parallelepiped basic unit of a predetermined size with no walls on at least one side and floor on the bottom, and rectangular solid of a predetermined size with no walls on at least one side and no floor on the bottom A basic unit table storing basic unit information including a basic unit type indicating which of the basic units is,
For each unit, a unit arrangement table in which unit arrangement information including basic unit type and information indicating the size and arrangement position is stored.
A computer comprising
According to the user's operation, the basic unit information stored in the basic unit table is selected, the basic unit indicated by the basic unit type included in the selected basic unit information is arranged, and the basic unit is expanded or A unit is formed in a reduced size or as it is, and when at least one of two units arranged adjacent to each other has a wall at the boundary between the two units, one wall is disposed at the boundary between the two units, and the formation is performed. Unit placement means for obtaining unit placement information for a position to be placed on a unit to be placed, and storing the created unit placement information in the unit placement table;
To function as.

  According to the present invention, a room, a colonnade, a veranda, and the like can be designed with an arbitrary size.

It is a figure which shows an example of a structure of the CAD system for buildings which concerns on embodiment of this invention. It is a figure which shows an example of a structure of a basic unit table. It is a figure which shows an example of a structure of a basic opening table. It is a figure which shows an example of a structure of a unit arrangement | positioning table. It is a figure which shows an example of a structure of an opening arrangement | positioning table. It is a figure which shows an example of the structure of the 1st floor of a log house. It is a figure which shows an example of the structure of the 2nd floor of a log house. It is an example of the left view of a log house. It is a figure which shows an example of a structure of a design reference table. It is a figure which shows an example of the design procedure of the 1st floor of the log house shown in FIG. FIG. 10A shows a procedure for arranging the unit U1. FIGS. 10B and 10C show a procedure for arranging the unit U2. FIG. 10D shows a procedure for arranging the unit U3. It is a figure which shows an example of the design procedure of the 2nd floor of the log house shown in FIG. FIG. 11A shows a procedure for arranging the unit U5. FIG. 11B and FIG. 11C show the procedure for arranging the unit U6. FIG. 11D and FIG. 11E show a procedure for arranging the unit U7 (blow-through). FIG. 11F shows a procedure for arranging the unit U8. It is a figure which shows an example of the procedure which arrange | positions opening to the 1st floor of the log house shown in FIG. FIG. 12A shows a procedure for arranging the opening P1. FIG. 12B shows a procedure for arranging the opening P2. FIG. 12C shows a procedure for arranging the opening P3. FIG. 12D shows a procedure for arranging the opening P4. An example of the wall of the left side surface formed by the module forming part when the log house is completed is shown. It is a figure which shows an example of the flow of a log house design process. It is a figure which shows another example of a structure of a basic unit table.

Hereinafter, a building CAD system according to an embodiment of the present invention will be described in detail with reference to the drawings, taking a log house design as an example. The log house handled in this embodiment uses a log or rectangular square material cut into a uniform size by machining as a log material. The log house is composed of a first floor, a second floor, and a roof.
In all the drawings for explaining the embodiments, common constituent elements are denoted by the same reference numerals, and repeated explanation is omitted.

FIG. 1 shows an example of the configuration of a building CAD system 100 according to an embodiment of the present invention.
The building CAD system 100 includes a CPU (Central Processing Unit), a main memory including a RAM (Random Access Memory), a storage device 200 including a hard disk, a keyboard, a mouse, a touch panel, and the like. Input device 300 and an output device 400 including a display, a printer, and the like.
The storage device 200 of the building CAD system 100 stores a building CAD program 201, a basic unit table 210, a basic opening table 220, a unit arrangement table 230, an opening arrangement table 240, and a design standard table 250. ing.
When the CPU of the building CAD system 100 reads out and executes the building CAD program 201 from the storage device 200 to the main memory, the functions of the unit placement unit 101, the opening placement unit 102, and the module formation unit 103 are changed. Realized.
Here, the input device 300 receives the operation of the user of the building CAD system 100. The output device 400 displays a log house in the middle of design created according to the operation on the operation screen.
The building CAD system 100 may be configured to be connected to a network and to be able to communicate with other computers connected to the network. In this configuration, the building CAD system 100 can receive an operation input from another computer and transmit the result of the operation to the computer. The log house in the middle of design created according to the user's operation is displayed on the display of the computer. In this configuration, the building CAD system 100 may not include the input device 300 and the output device 400.

FIG. 2 shows an example of the configuration of the basic unit table 210.
The unit is a rectangular parallelepiped area. The unit includes, for example, a wall on the side surface and a floor on the bottom surface. A room, a colonnade, a veranda or the like can be configured by a single unit or a combination of units.
The basic unit is a kind of unit and has a predetermined size. The basic unit table 210 stores basic unit information including the basic unit type. As shown in FIG. 2, the basic unit information includes four basic unit types. The dimensions of the bottom surface of each basic unit, for example, internal dimensions (vertical x horizontal) are determined in advance. The height of each basic unit is the height of the first or second floor of the log house.
A unit having an arbitrary floor area can be formed within a range satisfying a predetermined design standard by enlarging or reducing the bottom surface of the basic unit or as it is.

The four basic unit types are walled / floored units, walled / floorless units, wallless / floored units, and wallless / floorless units.
A walled / floored unit has walls on all four sides and a floor on the bottom. A unit with walls and floors, for example, constitutes a room alone.
A walled / floorless unit has walls on all four sides, but no floor on the bottom.
The wallless / floored unit has no walls on all four sides and a floor on the bottom.
The wallless / floorless unit has no walls on the four sides and no floor on the bottom.
As will be described in detail later, when two walled units (walled / floored units or walled / floorless units, hereinafter the same) are placed side by side, the boundary wall between these two units Are shared, and one wall is arranged at the boundary of both units. Moreover, the wall arrange | positioned adjacently on the same plane is put together into one wall.
When a wallless unit (a wallless / floored unit or a wallless / floorless unit; the same shall apply hereinafter) and a walled unit are placed next to each other, the wall of the walled unit is located at the boundary between these two units. Is given priority, and one wall is placed at the boundary of both units. Pillars are arranged at predetermined intervals on a side surface of the wallless unit without a wall so as to satisfy a predetermined design standard.
For example, it is possible to configure an atrium by arranging a wall-equipped / floored unit on the first floor and a wall-equipped / floorless unit on the first floor. Moreover, a balcony can be comprised by arrange | positioning a wallless and floorless unit on the first floor, and arrange | positioning a wallless and floored unit on it.

FIG. 3 shows an example of the configuration of the basic opening table 220.
There are three types of openings: windows, doors, and releases. The opening is installed in a wall such as a room.
The basic opening is a kind of opening. The basic opening has a standard dimension (height × width × thickness) determined by a fitting manufacturer for windows and doors, and has a predetermined basic dimension (height × width) for release. The basic opening table 220 stores basic opening information indicating the structure of the basic opening. As shown in FIG. 3, the basic opening information includes basic opening type, basic opening identification information, manufacturer name, reduced image of basic opening, and standard dimensions (height × width × thickness) for windows and doors. In addition, the release includes basic opening type, basic opening identification information, and basic dimensions (height × width).
Basic opening types include windows, doors and releases. The basic opening identification information is identification information that uniquely identifies the basic opening. The reduced image is a reduced image of the basic opening, and is used when a part or the whole of the log house is displayed two-dimensionally or three-dimensionally.
An opening having an arbitrary size can be formed in the wall within a range satisfying a predetermined design standard by enlarging or reducing the basic opening or as it is. Note that the windows and doors are of special dimensions (height x width x thickness) when installed on a wall with the basic opening enlarged or reduced, and the price is high because they must be ordered separately from the manufacturer. Become.

4 and 5 show examples of configurations of the unit arrangement table 230 and the opening arrangement table 240, respectively. 6 and 7 show examples of the structure of the first floor and the second floor of the log house, respectively. FIG. 8 is an example of a left side view of the log house. The log house shown in FIGS. 6 to 8 is configured based on the information of the unit arrangement table 230 in FIG. 4 and the opening arrangement table 240 in FIG.
The unit arrangement table 230 shown in FIG. 4 stores unit arrangement information indicating the arrangement of each unit. As shown in FIG. 4, the unit arrangement information includes unit identification information, basic unit type, internal dimensions (vertical × horizontal), and three-dimensional coordinates of the reference vertex.
The unit identification information is identification information that uniquely identifies each unit.
One of the basic unit types in the basic unit table 210 is set as the basic unit type.
The internal dimension (vertical x horizontal) is the internal dimension of the bottom surface of each unit.
The reference vertex of each unit is one of the vertices on a rectangle facing the inside of the unit on the bottom surface of each unit. For example, a cross mark at the lower left corner of the bottom surface of each unit shown in FIGS. 6 and 7 indicates the reference vertex. The three-dimensional coordinates of the reference vertex indicate the (vertical position, vertical position, height) of the reference vertex in each unit with the predetermined position of the floor on the first floor as the origin. For example, in the example of FIG. 6, the origin = (0, 0, 0) is a vertex facing the outside of the log house at the lower left corner of the floor of the first floor of the log house.
The internal dimensions (vertical × horizontal) and the three-dimensional coordinates of the reference vertex are examples of “information indicating the size and position of each unit” in the present invention.

In the example of the log house shown in FIGS. 6 to 8, the width of the log material is 200 mm, and the height of the first floor and the second floor is 2400 mm, respectively.
For example, the unit U1 in FIG. 6 is a wall / floor unit and is a room on the first floor. The three-dimensional coordinates of the reference vertex of the unit U1 are (200, 200, 0), and the inner dimension is 5800 mm × 2000 mm.
The unit U5 in FIG. 7 is a wallless / floored unit and is located on the second floor. The three-dimensional coordinates of the reference vertex of the unit U5 are (200, 200, 2400), and the inner dimension is 1800 mm × 2000 mm. A wall common to the unit U6 and the unit U7 is formed on the upper side surface and the right side surface of the unit U5, respectively. Pillars are installed on two side surfaces of the unit U5 without walls according to a predetermined design standard. Note that the width of the rectangular region indicated by the broken line on the two side surfaces of the unit U5 without a wall is also 200 mm, similar to the width of the log material.
Further, the unit U2 in FIG. 6 is a wall / floor unit and is located on the first floor. The three-dimensional coordinates of the reference vertex of the unit U2 are (2400, 200, 0), and the inner dimension is 5800 mm × 4800 mm. As shown in FIG. 7, the unit U7 is arranged on the second floor above the unit U2. The unit U7 is a walled / floorless unit and forms an atrium. The three-dimensional coordinates of the reference vertex of the unit U7 are (2400, 200, 2400), and the inner dimension is 5800 mm × 4800 mm.

The opening arrangement table 240 shown in FIG. 5 stores opening arrangement information indicating the arrangement of each opening. As shown in FIG. 5, the opening arrangement information includes opening identification information, basic opening identification information, dimensions, and three-dimensional coordinates of the reference vertex.
The opening identification information is identification information for uniquely identifying each opening.
In the basic opening identification information, any of the basic opening identification information of the basic opening table 220 is set.
The dimension is the size of each opening. The dimensions are height x width x thickness for windows and doors and height x width for releases.
The reference vertex of each opening is one of the vertices on the bottom surface of each opening. For example, a cross mark at the lower left corner of the bottom of each opening shown in FIGS. 6 and 7 indicates the reference vertex. Similarly to the reference vertex of each unit, the three-dimensional coordinates of the reference vertex indicate the (vertical position, vertical position, height) of the reference vertex at each opening, with a predetermined position on the floor of the first floor as the origin.
The dimensions and the three-dimensional coordinates of the reference vertex are an example of “information indicating the size and the position of each opening” in the present invention.

For example, the opening P1 shown in FIG. 6 is a door. The dimension of the opening P1 is a standard dimension determined by the manufacturer, and the three-dimensional coordinates of the reference vertex are (900, 0, 0).
Further, the opening P3 shown in FIG. 6 is released. The three-dimensional coordinates of the reference vertex of the opening P3 are (3400, 6000, 0).
An opening P5 shown in FIG. 7 is a window. The dimension of the opening P5 is a special dimension, and the three-dimensional coordinates of the reference vertex are (7200, 2400, 3400).

FIG. 9 shows an example of the configuration of the design criteria table 250.
The design criteria table 250 stores design criteria information indicating predetermined design criteria. The design criteria information includes application locations and design criteria. The design criteria shown in FIG. 9 are a part, and the design criteria table 250 includes many other design criteria.
When the user operation violates the design criteria stored in the design criteria table 250, the unit placement unit 101 and the opening placement unit 102 display a warning on the operation screen displayed on the output device 400 or the like.
The design criteria may be described not as the design criteria table 250 but as codes of the building CAD program 201.

Hereinafter, the function of each part of the unit arrangement part 101, the opening arrangement part 102, and the module formation part 103 will be described.
The unit arrangement unit 101 selects basic unit information stored in the basic unit table 210 according to a user's operation, arranges basic units indicated by the basic unit type included in the selected basic unit information, and The unit is formed by enlarging, reducing, or as it is. The unit placement unit 101 gives unit identification information to the formed unit.
When the two wall-mounted units are arranged next to each other, the unit arrangement unit 101 shares the walls between the two units, and arranges one wall at the boundary between the two units. In addition, when the unit without wall and the unit with wall are arranged next to each other, the unit placement unit 101 gives priority to the wall of the unit with wall at the boundary between the units of these two units, and places one wall at the boundary between both units. Deploy. The unit arrangement unit 101 arranges columns at predetermined intervals so as to satisfy a predetermined design standard on a side surface of a wallless unit without a wall. Finally, the unit placement unit 101 obtains the three-dimensional coordinates of the reference vertex of the unit based on the information including the log material width (wall thickness) and the height of each floor stored in the design reference table 250. Unit arrangement information is created, and the created unit arrangement information is stored in the unit arrangement table 230.
The three-dimensional coordinates of the reference vertex of the unit are an example of the “position where the unit is formed” in the present invention.

  Modules are those that are constructed as a unit during construction, such as walls, floors of rooms, hallways, and stairs. Based on the unit arrangement information stored in the unit arrangement table 230 and the opening arrangement information stored in the opening arrangement table 240, the module forming unit 103 collects, for example, walls arranged on the same plane. As a result, module placement information for the wall is created. Moreover, the module formation part 103 produces the module arrangement information of the floor of each room, for example based on unit arrangement information.

FIG. 10 shows an example of the design procedure for the first floor of the log house shown in FIG.
The unit arrangement unit 101 displays each basic unit indicated by the basic unit type included in the basic unit information stored in the basic unit table 210 on the output device 400 or the like. For example, the user selects a unit with a wall or a floor using a mouse and drags and drops it on an operation screen displayed on the output device 400 or the like. Then, the user performs an operation for enlarging it on the operation screen. As shown in FIG. 10 (A), the unit placement unit 101 places a wall-equipped / floor-equipped unit according to those operations, and expands it to form a unit U1. The unit arrangement unit 101 obtains the three-dimensional coordinates of the reference vertex of the unit U1, creates unit arrangement information of the unit U1, and stores it in the unit arrangement table 230.
Next, as shown in FIG. 10B, the unit arrangement unit 101 arranges the wall / floor unit 300 to the right of the unit U1 in accordance with the user's operation. The unit arrangement unit 101 shares the wall 301 at the boundary between the unit U1 and the wall-equipped / floor-equipped unit 300, and arranges one wall at the boundary between both units. At this time, since the upper wall of the unit U1 and the upper wall of the wall-equipped / floor-equipped unit 300 are aligned on one straight line (arranged on the same plane), the module forming unit 103 places these walls into 1 Combined into one wall 302.

Then, as shown in FIG. 10C, the unit placement unit 101 expands the wall-equipped / floor-equipped unit 300 on the right side of the unit U1 to form a unit U2 in accordance with the user's operation. The unit arrangement unit 101 obtains the three-dimensional coordinates of the reference vertex of the unit U2, creates unit arrangement information of the unit U2, and stores it in the unit arrangement table 230. At this time, since the lower wall of the unit U1 and the lower wall of the unit U2 are aligned in a straight line (arranged on the same plane), the module forming unit 103 arranges these walls into one wall 303. To summarize. The right wall of the unit U2 is 304. The unit U2 includes a left wall 301, an upper wall 302, a lower wall 303, and a right wall 304.
Next, as shown in FIG. 10D, the unit arrangement unit 101 arranges the wall / floor unit 310 adjacent to the upper side of the unit U1 in accordance with the operation of the user. At this time, the unit placement unit 101 shares the wall 302 between the unit U1 and the wall-equipped / floor-equipped unit 310 with the wall 302. At the same time, the left wall of the unit U1 and the left wall of the wall-equipped / floor-equipped unit 310 are arranged in a straight line (arranged on the same plane), so that the module forming unit 103 arranges these walls into one Put them together on the wall 311. And the unit arrangement | positioning part 101 expands the wall-with-floor unit 310 according to a user's operation, and forms unit U3. The unit arrangement unit 101 obtains the three-dimensional coordinates of the reference vertex of the unit U3, creates unit arrangement information of the unit U3, and stores it in the unit arrangement table 230.
Finally, the unit arrangement unit 101 forms the unit U4 according to the user's operation. The unit arrangement unit 101 obtains the three-dimensional coordinates of the reference vertex of the unit U4, creates unit arrangement information of the unit U4, and stores it in the unit arrangement table 230.

FIG. 11 shows an example of the design procedure for the second floor of the log house shown in FIG.
Although not shown, the first floor is displayed in a predetermined color such as light blue on the operation screen. The user can design the second floor while looking at the first floor.
As shown in FIG. 11A, the unit placement unit 101 places a wallless / floored unit on the unit U1 on the first floor and expands it to form a unit U5 according to the user's operation. . Here, the lower broken line rectangle 401, the left broken line rectangle 402, and the right broken line rectangle 403 in the unit U5 are respectively a lower wall 303 and a left wall 311 in the unit U1 on the first floor. Is disposed on the right wall 301. The unit arrangement unit 101 obtains the three-dimensional coordinates of the reference vertex of the unit U5, creates unit arrangement information of the unit U5, and stores it in the unit arrangement table 230.
Next, as shown in FIG. 11 (B), the unit arrangement unit 101 arranges the wall / floor unit 410 adjacent to the upper side of the unit U5 in accordance with the operation of the user. At this time, the unit arrangement unit 101 shares the wall between the unit U5 and the wall-equipped / floor-equipped unit 410 with the wall 411. At the same time, the left wall of the walled / floored unit 410 is arranged on the same plane as the left wall 311 of the unit U1 on the first floor, so the module forming unit 103 combines these walls into one wall 311. .

Then, as shown in FIG. 11C, the unit placement unit 101 expands the wall-equipped / floor-equipped unit 410 in accordance with the user's operation to form a unit U6. The unit arrangement unit 101 obtains the three-dimensional coordinates of the reference vertex of the unit U6, creates unit arrangement information of the unit U6, and stores it in the unit arrangement table 230. At this time, since the right wall 301 of the unit U1 on the first floor and the right wall of the unit U6 are arranged on the same plane, the module forming unit 103 combines these walls into one wall 301. At the same time, since the upper wall 302 of the unit U1 on the first floor and the upper wall of the unit U6 are arranged on the same plane, the module forming unit 103 combines these walls into one wall 302.
Next, as shown in FIG. 11D, the unit placement unit 101 places the walled / floorless unit 420 on the right side of the unit U6 in accordance with the user's operation. At this time, the unit placement unit 101 shares the wall 301 at the boundary between the unit U6 and the walled / floorless unit 420 with the wall 301. At the same time, since the upper wall of the walled / floorless unit 420 is disposed on the same plane as the upper wall 302 in the unit U6, the module forming unit 103 combines these walls into one wall 302.

Then, as shown in FIG. 11E, the unit placement unit 101 expands the walled / floorless unit 420 in accordance with the user's operation to form a unit U7. The unit arrangement unit 101 obtains the three-dimensional coordinates of the reference vertex of the unit U7, creates unit arrangement information of the unit U7, and stores it in the unit arrangement table 230. At this time, since the lower wall 303 and the lower wall of the unit U7 in the unit U2 on the first floor are arranged on the same plane, the module forming unit 103 combines these walls into one wall 303. At the same time, since the right wall 304 of the unit U2 on the first floor and the right wall of the unit U7 are arranged on the same plane, the module forming unit 103 combines these walls into one wall 304. The unit U6 on the first floor and the unit U7 on the second floor constitute an atrium.
Next, as shown in FIG. 11 (F), the unit placement unit 101 places the wall / floor unit 430 adjacent to the upper side of the unit U6 in accordance with the operation of the user. At this time, the unit placement unit 101 shares the wall 302 between the unit U6 and the wall-equipped / floor-equipped unit 430 with the wall 302. At the same time, the left wall 311 of the unit U6 and the left wall of the wall-equipped / floor-equipped unit 430 are arranged on the same plane, so the module forming unit 103 combines these walls into one wall 311. And the unit arrangement | positioning part 101 expands the wall-with-floor unit 430 according to a user's operation, and forms unit U8. The unit arrangement unit 101 obtains the three-dimensional coordinates of the reference vertex of the unit U8, creates unit arrangement information of the unit U8, and stores it in the unit arrangement table 230.
Finally, the unit arrangement unit 101 forms the unit U9 according to the user's operation. The unit arrangement unit 101 obtains the three-dimensional coordinates of the reference vertex of the unit U9, creates unit arrangement information of the unit U9, and stores it in the unit arrangement table 230.

The opening arrangement unit 102 selects basic opening information stored in the basic opening table 220 according to a user's operation, and sets the basic opening identified by the basic opening identification information included in the selected basic opening information as a unit. The unit is arranged on the wall of the unit arranged at the position determined by the arrangement unit 101, and an opening is formed in the unit wall by enlarging or reducing it or as it is. The opening arrangement part 102 gives opening identification information to the formed opening. Then, the opening arrangement unit 102 obtains the three-dimensional coordinates of the reference vertex of the formed opening, creates opening arrangement information, and stores the opening arrangement information of the formed opening in the opening arrangement table 240.
The three-dimensional coordinates of the reference vertex of the opening are an example of the “position where the opening is formed” in the present invention.

  As described with reference to FIGS. 10 and 11, the module forming unit 103 combines the walls of the units arranged on the same plane by the unit arranging unit 101 into one wall. The module forming unit 103 forms a hole corresponding to the opening formed by the opening arranging unit 102 in the wall combined into one.

FIG. 12 shows an example of a procedure for installing an opening on the first floor of the log house shown in FIG.
The opening arrangement unit 102 displays a reduced image of each opening included in the basic opening information stored in the basic opening table 220 on the output device 400 or the like. The user selects the door D1 included in the basic opening information stored in the basic opening table 220 using a mouse, for example, and puts it on the lower wall 303 of the unit U1 on the operation screen displayed on the output device 400 or the like. Drag and drop. As shown in FIG. 12 (A), the opening placement portion 102 places the door D1 on the wall 303 of the unit U1 in accordance with these operations. Since the door D1 has a standard dimension, the opening P1 (door D1) is formed in the wall 303 with the opening placement portion 102 being left as it is. The opening placement unit 102 obtains the three-dimensional coordinates of the reference vertex of the opening P1 (door D1), creates opening placement information of the opening P1 (door D1), and stores it in the opening placement table 240. The module forming unit 103 forms a hole in the wall 303 corresponding to the opening P1 (door D1).
Next, as shown in FIG. 12B, the opening placement unit 102 places the window W1 on the left wall 311 of the unit U1 on the operation screen in accordance with the operation of the user. And the opening arrangement | positioning part 102 expands the window W1 according to a user's operation, and forms the opening P2. The opening P2 (window W1) is a special size and has a height × width × thickness specified by the user. The opening arrangement unit 102 obtains the three-dimensional coordinates of the reference vertex of the opening P2 (window W1), creates opening arrangement information of the opening P2 (window W1), and stores it in the opening arrangement table 240.
In the design reference table 250, the height at the three-dimensional coordinates (horizontal position, vertical position, height) of the reference vertex of the window is set to, for example, 1000 mm from the floor of the unit. However, the height of the reference vertex can be set to an arbitrary height by changing the three-dimensional coordinates of the reference vertex included in the opening arrangement information stored in the opening arrangement table 240. The module forming unit 103 forms a hole in the wall 311 corresponding to the opening P2 (window W1).

Next, as shown in FIG. 12C, the opening placement unit 102 places the release OP on the upper wall 302 of the unit U2 on the operation screen in accordance with the operation of the user. And the opening arrangement | positioning part 102 expands release | release OP according to a user's operation, and forms the opening P3. The opening P3 has a height × width specified by the user. The opening placement unit 102 obtains the three-dimensional coordinates of the reference vertex of the opening P3 (release OP), creates the opening placement information of the opening P3 (release OP), and stores it in the opening placement table 240. The module forming unit 103 forms a hole in the wall 302 corresponding to the opening P3 (release OP).
Next, as shown in FIG. 12D, the opening placement unit 102 places the window W2 on the right wall 304 of the unit U4 on the operation screen in accordance with the operation of the user. And the opening arrangement | positioning part 102 expands the window W2 according to a user's operation, and forms the opening P4. The opening P4 (window W2) is a special size and has a height × width × thickness specified by the user. The opening placement unit 102 obtains the three-dimensional coordinates of the reference vertex of the opening P4 (window W2), creates the opening placement information of the opening P4 (window W2), and stores it in the opening placement table 240. The module forming unit 103 forms a hole in the wall 304 corresponding to the opening P4 (window W2).
Similarly, the module formation part 103 arrange | positions the opening P5 (window W2) and the opening P6 (window W1) in the wall 304 and the wall 311 of the 2nd floor of a log house according to a user's operation. The module forming unit 103 forms holes corresponding to the opening P5 and the opening P6 in the wall 304 and the wall 311, respectively.

When the design of the first floor and the second floor is completed, the building CAD system 100 arranges the roof on the second floor according to the operation of the user. However, since the roof design is out of the scope of the present invention, the description of the roof design is omitted.
FIG. 13 shows an example of the left side wall 311 formed by the module forming unit 103 when the log house design is completed.

FIG. 14 shows an example of the flow of the log house design process.
The unit arrangement unit 101 arranges the basic unit on the operation screen according to the user's operation (S10). The unit placement unit 101 forms a unit by enlarging or reducing the basic unit according to the user's operation or as it is (S11). The unit placement unit 101 gives unit identification information to the formed unit (S12).
When at least one of the two units arranged adjacent to each other has a wall at the boundary between both units, the unit arranging unit 101 arranges one wall at the boundary between the adjacent units (S13). When two wall-mounted units are arranged next to each other, the unit arrangement unit 101 shares a wall between the two units and arranges one wall at the boundary between adjacent units. In addition, when the unit without wall and the unit with wall are arranged next to each other, the unit placement unit 101 gives priority to the wall of the unit with wall at the boundary between the units of these two units, and places one wall at the boundary between both units. Deploy. In addition, the unit arrangement | positioning part 101 arrange | positions a pillar by the predetermined space | interval so that a predetermined design standard may be satisfy | filled on the side surface without a wall of a wallless unit.
The unit placement unit 101 obtains the three-dimensional coordinates of the reference vertex based on the information including the log material width (wall thickness) and the height of each floor, and creates unit placement information by creating unit placement information of the formed unit. It stores in the table 230 (S14).
When the arrangement of the units is finished on the first floor and the second floor (S15: Yes), the opening arrangement unit 102 arranges the basic opening on the wall of the unit according to the user's operation (S16). The opening placement unit 102 enlarges or reduces the basic opening according to the user's operation or forms the opening in the unit wall as it is (S17). The opening arrangement part 102 gives opening identification information to the formed opening (S18). Then, the opening placement unit 102 obtains the three-dimensional coordinates of the reference vertex of the opening, creates opening placement information of the formed opening, and stores it in the opening placement table 240 (S19).
When the arrangement of the openings is finished on the first and second floors (S20: Yes), the building CAD system 100 arranges the roof according to the user's operation (S21).

The module forming unit 103 puts the walls of the units arranged on the same plane into one wall while arranging the units. And module formation part 103 forms a hole corresponding to an opening in the wall put together, when each opening is arranged.
However, the module forming unit 103 sets the unit arrangement information stored in the unit arrangement table 230 and the opening arrangement information stored in the opening arrangement table 240 after the roof is arranged in step S21 and the log house design is completed. Based on the above, the walls of the units arranged on the same plane may be combined into one wall, and a hole corresponding to each opening may be formed in each of the combined walls.

In the above-described embodiment, the openings are formed after all the units are arranged on the first floor and the second floor. However, when each unit is arranged, the openings may be simultaneously formed on the walls of the units. Good.
In the above-described embodiment, the second floor is designed after the first floor is designed. However, the first floor can be designed after the second floor is designed.

Further, the basic unit table shown in FIG. 15 can be used instead of the basic unit table 210 shown in FIG.
All side wall / floor units have walls on all four sides and floors on the bottom.
All side walled / floorless units have walls on all four sides but no floor on the bottom.
The unit with three side walls, one side wall without, and floors has three side walls, the remaining one side has no walls, and the bottom has a floor.
A unit with three side walls, one side wall without, and no floor has three side walls, the remaining one side has no walls, and the bottom has no floor.
In the unit with two side walls / without two side walls / with floor, the two adjacent side surfaces have walls, the remaining two side surfaces have no walls, and the bottom surfaces have floors.
A unit with two side walls, two side walls, and no floor has two adjacent side walls, the remaining two side surfaces have no walls, and the bottom surface has no floor.
The unit with one side wall, three side walls, and floor has one side wall, the other three side walls have no wall, and the bottom side has a floor.
Units with one side wall, three side walls, and no floor have one side wall, the other three side walls have no walls, and the bottom has no floor.
When the basic unit table shown in FIG. 15 is used, the unit arrangement unit 101 arranges two adjacent units so that both units have walls at their boundaries. For this reason, the unit placement unit 101 always shares the boundary wall between these two units and places one wall at the boundary between both units.

In the above-described embodiment, a two-story log house has been described as an example. However, the present invention is not limited to this, and by using an appropriate design standard, a one-story building or a three-story building or more is used. Can also be applied. The present invention can also be applied to wooden or concrete buildings.
In the example of FIGS. 10 and 11 described above, an example in which the bottom surface of each unit is enlarged or reduced is shown. However, each unit may be enlarged or reduced in the height direction.

  As described above, according to the present invention, a room, a colonnade, a veranda, and the like can be designed with an arbitrary size. In addition, doors and windows of arbitrary sizes can be installed at arbitrary positions on walls such as in each room and atrium.

  Although the embodiments of the present invention have been described above, various modifications and combinations necessary for design reasons and other factors are described in the inventions described in the claims and the specific embodiments described in the embodiments of the invention. It is included in the scope of the invention corresponding to the example.

DESCRIPTION OF SYMBOLS 100 ... CAD system for buildings, 101 ... Unit arrangement part, 102 ... Opening arrangement part, 103 ... Module formation part, 200 ... Storage device, 201 ... CAD program for buildings, 210 ... Basic unit table, 220 ... Basic opening table, 230 ... Unit arrangement table, 240 ... Opening arrangement table, 250 ... Design criteria table, 300 ... Input device, 400 ... Output device

Claims (5)

A rectangular parallelepiped basic unit of a predetermined size with walls on all four sides and a floor on the bottom, a rectangular solid basic unit with a predetermined size with walls on all four sides but no floor on the bottom Unit, rectangular parallelepiped basic unit of a predetermined size with no walls on at least one side and floor on the bottom, and rectangular solid of a predetermined size with no walls on at least one side and no floor on the bottom A basic unit table storing basic unit information including a basic unit type indicating which of the basic units is,
For each unit, a unit arrangement table in which unit arrangement information including basic unit type and information indicating the size and arrangement position is stored.
According to the user's operation, the basic unit information stored in the basic unit table is selected, the basic unit indicated by the basic unit type included in the selected basic unit information is arranged, and the basic unit is expanded or A unit is formed in a reduced size or as it is, and when at least one of two units arranged adjacent to each other has a wall at the boundary between the two units, one wall is disposed at the boundary between the two units, and the formation is performed. A unit placement section for obtaining unit placement information for a position to be placed on the unit to be placed, and storing the created unit placement information in the unit placement table;
A CAD system for buildings, comprising: The information included in the unit arrangement information indicating the size and the arrangement position is the internal dimension of the unit and the three-dimensional coordinates of the reference vertex which is one of the vertices on the rectangle facing the inside of the unit on the bottom surface of the unit. Yes,
The unit placement unit obtains the three-dimensional coordinates of the reference vertex of the unit to be formed based on information including the wall thickness and the height of each floor.
The building CAD system according to claim 1. As for windows and doors, basic opening identification information for identifying individual basic openings having predetermined basic dimensions and predetermined standard dimensions determined by joinery manufacturers, and basic opening information including the standard dimensions or the basic dimensions. A basic opening table to store,
For each opening, an opening arrangement table in which opening arrangement information including basic opening identification information and information indicating a size and a position to be arranged is stored;
According to the user's operation, the basic opening information stored in the basic opening table is selected, and the basic opening identified by the basic opening identification information included in the selected basic opening information is obtained by the unit placement unit. The unit is placed on the wall of the unit arranged at the position, and the basic opening is enlarged or reduced, or an opening is formed in the wall of the unit as it is, and the position to be arranged with respect to the formed opening is obtained. Creating an opening arrangement information, and storing the created opening arrangement information in the opening arrangement table;
The building CAD system according to claim 1, further comprising: A module in which the walls of the units arranged on the same plane by the unit arrangement part are combined into one wall, and a hole corresponding to the opening formed by the opening arrangement part is formed in the one wall. The building CAD system according to claim 3 , further comprising a forming unit. A rectangular parallelepiped basic unit of a predetermined size with walls on all four sides and a floor on the bottom, a rectangular solid basic unit with a predetermined size with walls on all four sides but no floor on the bottom Unit, rectangular parallelepiped basic unit of a predetermined size with no walls on at least one side and floor on the bottom, and rectangular solid of a predetermined size with no walls on at least one side and no floor on the bottom A basic unit table storing basic unit information including a basic unit type indicating which of the basic units is,
For each unit, a unit arrangement table in which unit arrangement information including basic unit type and information indicating the size and arrangement position is stored.
A computer comprising
According to the user's operation, the basic unit information stored in the basic unit table is selected, the basic unit indicated by the basic unit type included in the selected basic unit information is arranged, and the basic unit is expanded or A unit is formed in a reduced size or as it is, and when at least one of two units arranged adjacent to each other has a wall at the boundary between the two units, one wall is disposed at the boundary between the two units, and the formation is performed. Unit placement means for obtaining unit placement information for a position to be placed on a unit to be placed, and storing the created unit placement information in the unit placement table;
CAD program for buildings to function as.

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