JP2000113211A - Method for producing and displaying cg image about building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a producing and displaying method for a CG image about a building which easily changes related graphic data in a comparatively short time even when a user desires design change of a part of a building during walk-through and to provide a recording medium on which a program for making a computer execute the method is recorded. SOLUTION: This producing and displaying method for a CG image about a building inputs the floor plan of each floor of a building while displaying it on the screen of a computer for CG image production, also produces three- dimensional data about the building by inputting the height and thickness of each part of the building as necessary, then sets a viewpoint P position and an observation point Q for the three-dimensional data to make them still or move and shows a CG image representing the building as a still picture or animation on a display device 12 linked with the computer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer for creating a three-dimensional shape data of a building by a computer for creating a CG image and displaying the CG image representing the building as a still image or a moving image on a display device. The present invention relates to a method for creating and displaying a CG image related to a building, and a computer-readable recording medium on which a program for causing a computer to execute the method is recorded.

[0002]

2. Description of the Related Art In designing a house, a building type, a floor area, a floor plan, and the like are individually determined according to site conditions, user's desires, and the like. In this case, there is a problem in that it is difficult for the user to obtain a specific image of each part of the house he or she intends to construct simply by the person in charge of designing such as the building company presenting the drawing such as a plan view to the user.

Therefore, conventionally, CAD (Computer Aided D)
esign) system to create a drawing showing the floor plan and furniture of the house, and then import the CAD data into a presentation computer installed in a display room (presentation room) provided by a building company and the like. The three-dimensional shape data of the house is created based on the CAD data, and furthermore, the three-dimensional shape data is subjected to processing such as coloring, so that an image by computer graphics (hereinafter, CG) representing the house is displayed. A method of creating and displaying a CG image relating to a building in which a CG image is generated and displayed on a display device such as a screen in the display room has been proposed (see Japanese Patent Application Laid-Open No. Hei 9-106408). ).

According to the display method, the viewpoint and the observation point set for the three-dimensional shape data are moved in a desired direction using an operating means such as a mouse, and the computer performs real-time calculations. Is performed, the same moving image as when walking inside and outside the house is displayed on the display device, and a so-called walk-through can be performed on the CG image.

[0005] With this, each part of the house can be displayed as a three-dimensional moving image in the display room in the same manner as the real thing, so that the user can accurately judge the quality of the layout and the arrangement of the furniture and the color of the interior material. In addition, there is an advantage that the texture of the pattern and various materials can be confirmed on the CG image.

[0006]

By the way, during the above-mentioned walk-through, there is a case where a user discovers an insufficiency in a part of a house to be built, and desires to change a layout or a type or arrangement of furniture. . However, conventionally, since graphic data is created by a CAD system separate from a computer for presentation, graphic data must be changed using a CAD system in accordance with a change in layout or the like.

For this reason, it takes a lot of time to change the design of a house, and it is practically impossible to change the floor plan or the like immediately during one presentation and to perform a walk-through based on the changed data. Was.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a method for changing graphic data even when a user desires to change a design of a part of a building during a walk-through presentation. It is an object of the present invention to provide a method for creating and displaying a CG image related to a building, which can easily perform the method in a relatively short time, and a recording medium storing a program for causing a computer to execute the method.

Therefore, the method for creating and displaying a CG image relating to a building according to claim 1 of the present invention is performed while displaying a plan view of each floor of the building on a computer screen for creating a CG image while displaying the floor plan. 3D data relating to the building is created by inputting the height, thickness, etc. of each part of the building, and the viewpoint position and the observation point position are successively set with respect to the 3D data to obtain the viewpoint position and the observation. The CG image representing the building is displayed as a still image or a moving image on a display device linked to the computer by stopping or moving the point position.

According to a second aspect of the present invention, there is provided a computer-readable recording medium storing a program for causing a computer to execute the method for creating and displaying a CG image relating to a building according to the first aspect.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. At first, C about building such as houses
The configuration of the display room 1 (presentation room) for displaying a G image will be described. As shown in FIGS. 1 and 2, the display room 1 is provided with pivotable doors 2 near two corners thereof, and has a vertically movable blind 4 a on a rear wall 3. A long window 4 is formed, while a screen 5 is fitted in the wall 3 near the front. The screen 5 is, for example, a large screen having a size of about 100 inches or more (the number of pixels is, for example, 1280 ×
1024 dots).

A projector 7 (projector) having, for example, three projection tubes 6 is installed near the ceiling of the rear wall 2 of the display room 1, and a projection image is projected from the projector 7 toward the screen 5. It has become so. Note that a separate projection chamber may be provided on the back side of the screen 5 to project from the back side of the screen 5.

In the display room 1, a plurality of chairs 8 and a table 9 for use by a user U or the like who watches a CG image projected on a screen 5 are arranged. A display device 12 (CRT: Cathode Ray) of a workstation 11 (computer for creating a CG image) for creating a CG image related to a house to be built by a user U and displaying the created image on a screen 5.
Tube, etc.), a keyboard 13 and a mouse 14 as input devices. Although not shown in detail, as the mouse 14, for example, a mouse having three buttons of a left button, a middle button, and a right button is used.

Below the auxiliary table 15 arranged near the corner of the display room 1, an arithmetic processing unit 16 constituting the main body of the workstation 11 is installed. 5 for appropriately printing an image displayed on the display 5
A scanner 18 for taking in an image is placed in the workstation 11.

Although not specifically shown, the arithmetic processing unit 16 includes a control unit, an arithmetic unit, a storage unit, and the like, and as will be described in detail below, a keyboard 13 and a mouse 14 by an operator S such as a building company. 3D shape data is generated by inputting such operations as creating a plan view of the house H, setting the thickness, height, etc. of each part of the house H as necessary, and generating three-dimensional shape data, and further coloring the data. And output it to the display device 12 and the screen 5 simultaneously,
CG representing the house H on the display device 12 and the screen 5
The image C is displayed.

The arithmetic processing unit 16 is provided with the operator S
Sets the viewpoint position and the observation point position with respect to the three-dimensional shape data and moves the viewpoint position and the observation point position as appropriate, thereby displaying each part of the house as a still image or a moving image. It is supposed to do.

The presentation in the display room 1 is usually performed at the stage where the layout of a house to be built is determined by negotiations between the user U and a designer in charge of a building company or the like. In this case, the preparation before the user U creates the three-dimensional shape data of the house is performed by the operator S before the user U visits the display room 1, and the user U visits the display room 1. Then, the above-described walk-through may be performed.

Hereinafter, a house H to be constructed by the user U by the workstation 11 by the operator S as preparations.
The procedure for creating a plan view of each floor will be briefly described. FIG.
Is a plan view of a first floor portion of a two-story house H to be constructed by the user U, which is created in advance by a CAD system or the like of a construction company.

The creation of the plan view by the workstation 11 can be performed directly by input operation with the mouse 14 or the like while referring to the plan view created by the CAD system or the like. It is more efficient to read with the scanner 19 and create a plan view while using this as a lower diagram.

FIG. 4 shows an initial screen displayed on the display device 12 when the workstation 11 is started. The area from the center of the display device 12 to the left end is the image display area A1, while the right end is the menu display area A2 for displaying various operation menus.

For example, when the floor plan of the house H as shown in FIG. 3 is read by the scanner 19, the drawing input of the menu display area A2: the scale button B1 is When the user clicks with the left button (hereinafter, the clicking operation by the left button of the mouse 14 is simply referred to as “click”), as shown in FIG.
The above-described plan view (hereinafter, the plan view read by the scanner 19 is referred to as a “lower view”) is read into the image display area A1.
After that, each room, wall, and the like are input by the workstation 11 in the form of tracing on the figure below.

When the following figure is read, first, the scale of the actual house is determined. The determination of the scale is performed, for example, by designating two specific points on the image display area A1 and inputting the actual distance between the two points by using the keyboard 13 as a numerical value. Outside the house H on the image display area A1, grids G _X , G _Y (equally spaced) in the (X direction) and the vertical direction (Y direction), which are reference lines for creating a plan view by the workstation 11, are provided. Although parallel lines) is displayed, the housing main wall W in H is the grid G _X, so as to be positioned on G _Y, if necessary, the grid G _X, G _Y pitch and the grid G _X, G _Y And the reference point of.

Next, the room area of each room is input on the image display area A1 on the screen of the display device 12 with reference to the following figure. When the room area setting button B2 in the menu display area A2 is clicked, as shown in FIG. 6, the display contents of the menu display area A2 are partially changed, and a list of room names is displayed on the list display section E1. For example, when inputting the area of the entrance, that is, the range occupied by the entrance, first, the entrance is selected and clicked from the list display section E1, and “entrance” is displayed in the room name display column E2.

Here, since the entrance of the house H forms a rectangle (BOX) when viewed from above, after clicking an area BOX button B3 for inputting a rectangular area, the image display area A1 is clicked. Two corners located on the diagonal of the entrance area on the figure below, for example, corner F
By clicking successively on F1 and F2, these two points F1 and F2
The X and Y coordinates of 2 are recognized based on the grids G _X and G _Y to determine a rectangular entrance area.

As a result, as shown in FIG. 7, the above figure is erased in the entrance of which the area has been determined, and the name "entrance" displayed in the room name display column E2 is also displayed in the entrance area. Is done. Next, when inputting the area of the hall, since the hall in the house H is not rectangular when viewed from above, after clicking the area continuous line button B4 for inputting an area other than the rectangle, the image display area A
1 each corner F1, F3, F4, F5, F
6. Click F7 in order. Thereby, the area of the hall is determined.

When the areas of other rooms such as a Japanese-style room and a bedroom are successively determined in the same manner, the lower figure in the room is sequentially deleted for the rooms for which the areas have been determined. For example, the furniture and the like in each room displayed in the original drawing of FIG. 3 are deleted. Further, the room name of the room whose area has been determined is displayed, but since this room name is selected from those preset in the workstation 11, it may be different from the room name displayed in the original drawing. is there.

FIG. 8 shows a state where the areas of all the rooms on the first floor of the house H are determined. In this case, the boundaries of the room areas of adjacent rooms may be indicated by dotted lines, for example, or the individual room areas may be displayed in different colors. As described above, the lower diagram in each room for which the area has been determined is deleted, but the outer peripheral wall portion facing the outdoor side of the house H has an opening (and fittings, etc.) by the workstation 11 thereafter. The following figure is continuously displayed for convenience of input and the like.

[0028] In setting of the room area, the corners of each room, typically X, Y direction of the grid G _X, although located on the intersection of the G _Y, any corners grid G _X, G If it is not located on the intersection of _Y , by clicking the middle snap grid button B5, it is possible to designate a half position or a one third position between adjacent grids.

When the determination of the room area is completed, the user inputs the wall between adjacent rooms and the outer peripheral wall. Although it is possible to input this wall individually, it is usually efficient to automatically generate the wall at the boundary of the set room area. That is, when inputting a wall, FIG.
When the return button B6 is clicked in the menu display area A2, only the menu display area A2 returns to the display content of FIG. 5, and when the wall input button B7 is clicked here, as shown in FIG. The display changes.

Here, when the automatic wall generation button B8 is clicked, the wall W is automatically generated at the boundary of the set room area by the workstation 11, as shown in the image display area A1 of FIG. Is displayed. Housing H
A wall is automatically generated also at the outer peripheral portion facing the outdoor side of the above, but as described above, the following figure is displayed as it is in consideration of the convenience of input of the opening thereafter.

The operator S compares the plan view displayed in the image display area A1 in FIG. 9 with the original view in FIG.
If the upper wall is different from the wall in the original drawing, correct it appropriately.
For example, in the original drawing, the wall W1 on one side of the stairs is longer than the wall W2 on the other side, but in the one automatically generated in FIG.
Since the stairs were set as rectangular areas when the room area was set, the lengths of the walls W1 and W2 on both sides of the stairs are equal.

In this case, the wall input (continuous point) button B9 is clicked in the menu display area A2, and the image display area A1 is clicked.
When the end F8 of the wall W1 on one side and the position F9 corresponding to the end F9 of the wall W1 in the original drawing are sequentially clicked above, the wall W1 on one side is extended as shown in FIG.

In the image display area A1 of FIG. 9, a wall W3 is erroneously generated between the Japanese-style room and the floor. In this case, the wall W3 can be deleted by clicking the wall W3 after clicking the wall selection and deletion button B10 in the menu display area A2. Thereafter, the user clicks on the gusset line (two points) button B11, and the two points F10 and F at both ends of the boundary between the Japanese-style room and the floor on the image display area A1 in FIG.
When 11 is sequentially clicked, as shown in FIG. 10, for example, a dotted line K1 is displayed between the Japanese-style room and the floor by a dotted line. Similarly, for example, the wall W4 (FIG. 9) automatically generated between the entrance and the hall is removed, and the camera line K2 (FIG. 10) is input here.

After the necessary wall correction is completed, an opening is input. This opening includes a simple opening without a fitting provided on a partition wall between adjacent rooms, and an opening with a fitting such as a door or a window provided on a partition wall or an outer peripheral wall of the house H.

When an opening is input, when the return button B6 is clicked in the menu display area A2 of FIG. 10, only the menu display area A2 returns to the display contents of FIG. Here, when the opening input button B12 is clicked, the display contents of the menu display area A2 are switched as shown in FIG. 11, and in this menu display area A2, for example, when the internal fitting button B13 is clicked, the internal fitting is accompanied. A submenu A3 for inputting an opening is displayed in a pop-up.

Here, for example, a case will be described in which an opening with a hinged door is input at the entrance of the bedroom. Submenu A
In the first list display section E3 of FIG. 3, when a door is selected as an internal fitting, on the second list display section E4, for example, when a piece opening width 700 (mm) is selected as the detailed specification of the door, the specification of the internal fitting is obtained. These are displayed in the display column E5 and the detailed specification display column E6, and an elevation view showing the selected hinged door is displayed in the drawing display unit E7. The width and height of the opening for accommodating the hinged door can be set by inputting a numerical value from the keyboard 13 into each of the input fields E8 and E9.

After deciding the type of the internal fittings and the size of the opening, the user clicks the selection decision button B13, and
When the wall W5 to which the selected hinged door is to be input is clicked in the image display area A1, an opening O1 is formed in the wall W5, as shown in FIG.
1 is displayed.

It is to be noted that the mounting direction of the hinged door D1 (leftward opening, rightward opening, inner opening, outer opening, etc.) can be changed, for example, by changing the mouse 1
4, when the user wants to move the opening O1 and the hinged door D1 in the width direction of the wall W5 by clicking the middle button or the right button, and so on.
The operation can be performed by, for example, clicking the mouse button 4 and moving the mouse 14.

Hereinafter, similarly, an opening O with a fitting D such as a Japanese-style room fitting or an external fitting or a simple opening O without a fitting is provided.
Input. An opening O is formed on the wall along the outer periphery of the house H.
When (and fitting D) is input, the opening (and fitting) in the lower figure displayed at the position in the image display area A1.
Is erased. FIG. 13 shows a state where the input of the opening O and the fitting D on the first floor portion of the house H is completed.

Next, a procedure for inputting various kinds of furniture and equipment in the plan view of the house H will be briefly described. When the furniture: equipment arrangement button B14 is clicked in the menu display area A2 in FIG. 13, as shown in FIG. 14, instead of the plan view of the house H displayed in the image display area A1, the furniture: equipment name is displayed. A list is displayed. For example, when inputting furniture, clicking "furniture" in the items of the type list on the left side displays the names of various types of furniture on the right side furniture: equipment list.

For example, when inputting the three-seat sofa set J arranged in the living room in the original drawing of FIG. 3, if the "three-seat sofa set" is clicked in the furniture: equipment list, it is not shown. The plan view of the three-seat sofa set J is enlarged and displayed in the image display area A1.

Subsequently, when the furniture: equipment arrangement execution button B14 is clicked in the menu display area A2, a plan view of the first floor of the house H is displayed again in the image display area A1, as shown in FIG. Here, when the room where the three-seat sofa set J is to be placed, that is, the LDK is clicked, a plan view of the three-seat sofa set J is displayed in the LDK, and the three-seat sofa set J is attached to the wall surface of the LDK. It moves at a constant speed along.

When the three-seat sofa set J has moved to or near the target position, the operator S uses the mouse 1
When 4 is clicked, the three-seat sofa set J stops at that position. The arrangement direction of the three-seat sofa set J can be changed, for example, in units of 90 ° by a click operation of the middle button or the right button of the mouse 14, and the movement of the position can be performed by moving the furniture: furniture arrangement in the menu display area A2. This can be performed by, for example, clicking the button B16 and moving the mouse 14. Hereinafter, similarly, other furniture: equipment may be arranged.

As shown in FIG. 16, although not shown, if the arrangement of furniture and equipment is completed, a plan view of the second floor of the house H is created, and then the floor and wall surfaces of each room indoors are created. Select the surface material to be placed on the ceiling, etc. In addition, when the outdoor side is to be described by the CG image at the time of the presentation to the user U, the roof and the outer wall material are designed as necessary, and the input of the external structure such as the outdoor gate and the fence or the house H is performed.
The preparation is completed by, for example, creating an image representing the neighborhood environment of the user. In addition, during the above-mentioned preparation, although not shown, each part of the house H can be made three-dimensional if necessary, and it can be checked whether the layout and the arrangement of the fixtures are appropriate.

Next, a walk-through procedure using a CG image performed when the user U visits the display room 1 will be described.
At the time of this walk-through, as shown in FIG. 1, the operator S operates the workstation 11 while the operator S of the building company and the user U interact in the display room 1. 11 displays each part of the house H as a moving image on the screen 5 based on the input plan view and the like, and determines whether the design of each room is appropriate as if walking around each part of the house H. Confirmation work can be performed.

Specifically, at the start of the walk-through, for example, when the data read: save: maintenance button B17 is clicked on the initial screen of FIG. 4, as shown in FIG. Is read and displayed in the image display area A1. Subsequently, when the three-dimensional three-dimensionalization button B18 is clicked, the plan view is displayed in the sub-window A4 appearing in the lower right corner as shown in FIG. First, the initial positions of the viewpoint P and the observation point Q for walk-through are set in the sub-window A4.

That is, as shown in the enlarged view of the sub-window A4 in FIG. 18, after clicking the viewpoint button B19, by clicking a desired viewpoint position in the plan view shown in the sub-window A4, the viewpoint P can be changed. An initial position is determined. Subsequently, after clicking the observation point button B20, the initial position of the observation point Q is determined by clicking a desired observation point position in the above-mentioned plan view. Here, as an example, the viewpoint P and the observation point Q are set in the room “LDK”.

As a result, in the sub-window A4,
A line segment L indicating the line of sight connecting the viewpoint P and the observation point Q, and an isosceles triangle T indicating the extension of the visual field viewed from the viewpoint P are displayed. Since the observation point Q is for determining the line of sight, any point on the extension of the line segment L has the same result even if any point is clicked.

When the initial positions of the viewpoint P and the observation point Q are determined, the image display area A1 of the main window shown in FIG. A perspective view (perspective view) included in the angle range of the isosceles triangle T (within the field of view) is displayed. In addition, this perspective view is the input plan view and viewpoint P,
Based on the observation point Q and the like, it is automatically created by a walk-through program installed in the workstation 11 in advance, and the image display area A1 of the display device 12
And on the screen 5 at the same time. The perspective view in FIG. 17 is a walk-through start screen, and the start screen includes a room “LDK” in which a viewpoint P and an observation point Q are set.
Inside, a sofa set J, a dining table M, a chair N, and the like are displayed.

Subsequently, in order to start displaying a moving image on the image display area A1 and the screen 5, the sub-window A4
Click the Walk button B21 in the box. Thereby, the position of the viewpoint P (and the position of the observation point Q) is changed every moment based on the operation of the mouse 14 and the like by the operator S, and the house H is displayed on the image display area A1 of the display device 12 and the screen 5. It is possible to display the same moving image as walking around in the room.

When the viewpoint P is moved forward as a specific method of moving the viewpoint P and the observation point Q, for example, a mouse 14
When the viewpoint P is moved backward while the left button of the mouse 14 is clicked, for example, the middle button (or the right button) of the mouse 14 is used.
Just click. When the viewpoint P moves forward and backward, the observation point Q also moves forward and backward, and the line of sight does not change.

When it is desired to change the observation point Q, that is, the line of sight, to the right while the viewpoint P is stationary, for example, the operator S may move the mouse 14 to the right.
To change the line of sight to the left, for example, mouse 1
4 may be moved to the left. Thereby, the line of sight can be moved left and right while the viewpoint P position is fixed.

Next, when it is desired to change the observation point Q, that is, the line-of-sight direction upward while the viewpoint P is stationary, for example, the operator S only has to retract the mouse 14 to the near side. When it is desired to change the mouse downward, for example, the mouse 14 may be advanced. Thereby, it is possible to move the line of sight up and down while keeping the viewpoint P fixed.

When the viewpoint P or the observation point Q is moved by the operation of the mouse 14 or the like, a perspective view in which the direction of the observation point Q is viewed from the viewpoint P every moment is obtained by the walk-through program. Generated display device 12
Is displayed on the image display area A1 and the screen 5, and in the end, on the image display area A1 and the screen 5, the same moving image as walking around in the house H is displayed.

The viewpoint P and the observation point Q for the walk-through are moved in the menu display area A2 shown in FIG. Buttons B22, B23, Up / Down rotation buttons B24, B25, Forward / backward buttons B26, B27
Click the various buttons, such as the viewpoint height input section I
1. It is also possible to input numerical values into the observation point height input section I2 and the like.

FIG. 19 shows the display contents of the display device 12 when the viewpoint P and the observation point Q are moved in the room "LDK" by operating the mouse 14 or the like from the state of FIG. FIG.
In the sub-window A4, the viewpoint P and the observation point Q at the time are displayed in a plan view. Although not shown, the screen 5 includes an image display area A1 of the display device 12.
The same image as is displayed.

By the way, during the walk-through, the user U may want to change the layout of the house H or change the equipment.
That is, by performing the walk-through, the user U
Will be able to experience the same visual experience as actually walking around the house H, which is to be built, but often find that the design of the house H is inadequate compared to simply looking at the floor plan etc. Become.

In such a case, conventionally, graphic data such as a plan view created in advance by a dedicated CAD system is loaded into a walk-through workstation, and the graphic data is processed to perform a walk-through. As described above, for example, when the user U desires to change the layout during the walk-through, the drawing is once corrected by the CAD system, and the corrected graphic data is imported again to the workstation for walk-through. In such a case, it was practically impossible to immediately change the layout during a single walk-through.

On the other hand, in the present invention, since the plan view of the house H is created by the walk-through workstation 11 itself, when the user U requests a change in the floor plan or the like during the walk-through. Immediately, it is also possible to correct the plan view at the workstation 11 and restart the walkthrough based on the new plan view after the correction.

For example, in the state where the walk-through is performed as shown in FIG. 19, the user U desires to move the wall W6 in the room “LDK” further backward to expand the space of the room “LDK”. The procedure for changing the floor plan will be described. In this case, when the operator S clicks the return button B28 in the sub-window A4 of FIG. 19, the display content of the display device 12 returns to the state of FIG. The display content of the display area A2 is changed as shown in FIG. The display contents of the menu display area A2 are shown in FIG.
And so on.

Then, after clicking the wall selection and deletion button B29, the user sequentially clicks the walls W6 and W7 to be deleted in the image display area A1, or deletes the in-range deletion button B
When the range including the walls W6 and W7 is designated by clicking 30, the walls W6 and W7 are deleted as shown in FIG. Subsequently, for example, after clicking a wall input (continuous point) button B9, the points F12, F1 in the image display area A1 are clicked.
When the user clicks F3 and F14 sequentially, new walls W8 and W9 are created as shown in FIG.

Then, click the return button 31 and
When the display content of the menu display area A2 is changed to the content of FIG. 5 and the opening input button B12 is clicked here,
The display content of the menu display area A2 is changed as shown in FIG. Here, the sliding door D2 (see FIG. 22) arranged at the opening O2 in the conventional wall W6 is deleted using the opening deletion button B31 within the range, and if necessary,
Opening O in new wall W8 using subwindow A3
3 and the sliding door D3. In addition, after the change of the floor plan, operations such as addition, deletion, change, and movement of furniture and equipment can be easily performed using buttons as shown in the menu display area A2 in FIG. 15 as necessary.

As described above, in the present embodiment, when the user U desires to change the floor plan or the like during the walk-through, the plan view of the house H is corrected using the workstation 11 itself, and the change of the floor plan or the like is performed. Can be easily performed in a short time.
Therefore, during one walk-through, it is possible to change the floor plan or the like as necessary, and to restart the walk-through immediately based on the changed contents.

The floor plan of the house H shown in the above-described embodiment is merely an example, and the floor plan and the arrangement of furniture can be arbitrarily performed according to the request of the user U. Further, in the above description, the case where the walk-through is performed indoors of the house H is described. It is also possible to carry out a walk-through on the outside and, if desired by the user U during the walk-through, the design change on the outdoor side can be immediately carried out by returning to the plan view. A program for causing a computer such as the workstation 11 to execute the method of creating and displaying a CG image as described above is recorded on an appropriate recording medium such as a CD-ROM or a magneto-optical disk, and is sold and sold.
Actions such as use are naturally included in the scope of the present invention.

[0065]

As described above, according to the first aspect of the present invention,
The method of creating and displaying CG images related to buildings is as follows: while displaying the floor plan of each floor of the building on the screen of the computer for creating CG images, inputting the height and thickness of each part of the building if necessary Is input to create three-dimensional data on the building, and subsequently, the viewpoint position and the observation point position for the three-dimensional data are set, and the viewpoint position and the observation point position are stopped or moved, so that the computer The CG image representing the building is displayed as a still image or a moving image on a display device associated with the CG image. Since the processing is performed by a computer, for example, even if a user desires a change in layout or the like during a walkthrough, the computer It is possible to change the figure data in a short time by changing the plan view, etc. in a short time, and it is also possible to change the figure data immediately during one presentation and perform a walkthrough based on the changed data Become.

A recording medium according to a second aspect of the present invention stores a program for causing a computer to execute the method for creating and displaying a CG image relating to a building according to the first aspect. By installing it on a computer for creating CG images,
The method described in claim 1 can be implemented, which is useful in distributing the creation and display method.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a display room for displaying a CG image relating to a house according to an embodiment of the present invention.

FIG. 2 is a schematic plan view showing the display room.

FIG. 3 is a plan view created in advance for the first floor of a house displaying a CG image in the display room.

FIG. 4 is an explanatory diagram showing an initial screen displayed on a display device of a workstation arranged in the display room.

FIG. 5 is an explanatory view showing a state in which the plan view in FIG. 3 is read into the display device by using a scanner.

FIG. 6 is an explanatory diagram showing a procedure for inputting a floor plan (room area) of a house to be constructed using the display device of the workstation, with reference to the read plan view.

FIG. 7 is an explanatory diagram showing a subsequent procedure for inputting a floor plan to the workstation.

FIG. 8 is an explanatory diagram showing a state where input of a floor plan to the workstation is completed.

FIG. 9 is an explanatory diagram showing a state in which a wall is automatically generated by a workstation based on the floor plan.

FIG. 10 is an explanatory diagram showing a procedure for correcting a part of a wall that has been automatically generated.

FIG. 11 is an explanatory diagram showing a procedure for inputting an opening and a fitting into a wall by the workstation.

FIG. 12 is an explanatory view showing a subsequent procedure of inputting an opening and a fitting into a wall by the workstation.

FIG. 13 is an explanatory view showing a state where input of an opening and a fitting by the workstation is completed.

FIG. 14 is an explanatory diagram showing a procedure for inputting furniture and equipment in a plan view by the workstation.

FIG. 15 is an explanatory diagram showing a subsequent procedure of inputting furniture and equipment in a plan view by the workstation.

FIG. 16 is an explanatory diagram showing a state in which the input of furniture and equipment into the plan view has been completed by the workstation.

FIG. 17 is an explanatory diagram showing a start screen when a walk-through is performed in the house by the workstation.

FIG. 18 is an enlarged explanatory view showing a sub window appearing in a lower right corner of the screen of FIG. 17;

FIG. 19 is an explanatory view showing a state where walk-through is performed in the house by the workstation.

FIG. 20 is an explanatory diagram showing a procedure for changing a floor plan during the walk-through.

FIG. 21 is an explanatory diagram showing a subsequent procedure for changing a layout during the walk-through.

FIG. 22 is an explanatory diagram showing a subsequent procedure for changing a floor plan during the walk-through.

FIG. 23 is an explanatory diagram showing a state where the change of the floor plan during the walk-through is completed.

[Explanation of symbols]

11 workstation (walk-through computer)

Continued on front page F-term (reference) 5B046 AA03 BA10 CA05 DA10 FA08 FA15 FA17 GA01 GA09 HA01 HA04 HA05 HA07 5B050 AA03 BA07 BA09 BA17 CA04 CA07 DA03 DA09 DA10 EA24 EA27 FA02 FA06 FA09 FA12 FA13 FA15 FA19

Claims (2)

[Claims] The present invention relates to a building by inputting while displaying a plan view of each floor of a building on a screen of a computer for creating a CG image while inputting the height and thickness of each part of the building as necessary. Create 3D data,
Subsequently, by setting a viewpoint position and an observation point position with respect to the three-dimensional data and stopping or moving the viewpoint position and the observation point position, a CG representing the building is displayed on a display device associated with the computer. A method for creating and displaying a CG image relating to a building, wherein the image is displayed as a still image or a moving image. 2. A computer-readable recording medium on which a program for causing a computer to execute the method for creating and displaying a CG image relating to a building according to claim 1 is recorded.