JP2000113212A - Method for switching and displaying opening and fittings of building by cg image - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switching and displaying method for an opening and fittings by a CG image which can immediately change the openings and fittings of a building into ones whose sizes, shapes or the like are different and display them during walk-through by a CG image. SOLUTION: This switching and displaying method for an opening for a building by a CG image preliminarily prepares three-dimensional shape data about a building H to store them in a computer, preliminarily prepares plural kinds of image data whose size, shape or the like is different about an opening to be attached to the building when the building H is shown as a still picture or animation by CG images by setting a viewpoint position P and an observation point Q for the three-dimensional data and making the viewpoint position and observation point still or moving them, switches the opening for the building to plural kinds in a still picture state to display them and immediately shows animation with the opening after the switching.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for constructing a building based on three-dimensional shape data relating to the building which has been created in advance.
When displaying as a still image or a moving image by the G image, the opening of the building or the fittings that may be arranged in the opening displayed by the CG image is changed to a different size or shape in a still image state. The present invention relates to a method of switching and displaying an opening of a building and a fitting using a CG image, and a computer-readable recording medium storing a program for causing a computer to execute the method.

[0002]

2. Description of the Related Art Conventionally, when designing a house, an architectural style, a floor area, a floor plan, and the like are individually determined according to site conditions and a user's request. In that case, there is a problem that it is difficult for the user to obtain a specific image of each part of the house he or she intends to build simply by the building company presenting the drawing such as a plan view to the user.

[0003] Therefore, conventionally, a building company has been using CAD (Computing).
er Aided Design) After creating a floor plan of the house by the system, etc., read the data of the floor plan etc. into a display computer provided separately from the CAD system to create three-dimensional shape data representing the house, Further, an image by computer graphics (hereinafter, referred to as a CG image) representing the house, which is generated by performing processing such as data integration and coloring on the three-dimensional shape data, is appropriately converted into a display room or the like prepared by a building company. Displaying on a display device (large screen or the like) and causing the computer to perform real-time calculations while moving the viewpoint position set for the three-dimensional shape data in a desired direction by operating input means such as a mouse. As a result, the same moving image as walking inside and outside the house is displayed on the display device, and the moving image is displayed on the CG image. Performing a so-called walk-through has been proposed (see Japanese Patent Application Laid-Open No. 9-106408).

According to the above display method, each part of the house is indicated by three.
Since it can be displayed as a three-dimensional moving image in the same way as the real thing, the user can accurately judge whether the layout and the arrangement of furniture are appropriate, and the CG image up to the color of the interior material, the pattern and the texture of various materials There is an advantage that the above can be confirmed, and the state where each part of the house is viewed from a desired direction can be displayed as a CG image by moving the viewpoint position.

[0005]

By the way, during the above-mentioned walk-through, the user discovers that a part of the house to be built is inadequate or does not suit his taste, and changes the design, for example, changes the size and type of the fittings. Etc. may be desired. In that case, conventionally, even a small design change, one by one CAD
There was a problem that the system had to correct the plan view and the like.

Therefore, it is practically impossible to make a design change according to the user's request during one walk-through and to immediately resume the walk-through with the changed contents.
When the user desires a walkthrough with the changed contents, the building company completes the correction of the drawing by the CAD system, and then, again, the user goes to the display room of the building company and repeats the walkthrough. Therefore, both the construction company and the user waste time and labor.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention solves the above-mentioned problem. ) Can be changed to a different size, shape, etc. immediately if desired and displayed by a CG image, and a computer-readable recording program recording a program for causing a computer to execute the switching display method. It is intended to provide a possible recording medium.

Therefore, the switching display method of the opening of the building by the CG image according to the first aspect of the present invention is related to a building 3.
The three-dimensional shape data is created in advance and stored in a computer, and the viewpoint position and the observation point position are set with respect to the three-dimensional shape data, and the viewpoint position and the observation point position are stopped or moved. In displaying an object as a still image or a moving image using a CG image, a plurality of types of image data having different sizes and shapes are prepared in advance for the openings provided in the building, and the opening of the building is displayed in the still image state. Are switched and displayed in a plurality of types, and a moving image is displayed immediately by the opening after the switching.

According to a second aspect of the present invention, there is provided a method for switching and displaying an opening of a building and a fitting by using a CG image, wherein three-dimensional shape data relating to the building is created in advance and stored in a computer. When the building is displayed as a still image or a moving image by a CG image by setting the position and the observation point position and then moving the viewpoint position and the observation point position still or moving, the opening provided in the building and the opening A plurality of types of image data having different sizes and shapes are prepared in advance for the fittings arranged in the apparatus, and the opening and the fittings of the building are switched and displayed in a plurality of types in the still image state. The moving image is displayed immediately by the opening and the fitting.

According to a third aspect of the present invention, there is provided a method for switching and displaying an opening of a building and a fitting by means of a CG image. Image data is prepared in advance, and in the still image state, the glass of the fittings of the building is switched to a plurality of types and displayed, and a moving image is immediately displayed by the fitting after the switching of the glass. And

A recording medium according to a fourth aspect is a computer-readable recording medium that stores a program for causing a computer to execute the switching display method according to any one of the first to third aspects.

[0012]

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 wall 2 at the rear 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. As will be described in detail below, a keyboard 13 and a mouse 14 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 negotiation between the user U and a design engineer such as a building company. 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, the house S 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 of 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 displayed. 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 as described above, for the rooms for which the areas have been determined, the lower diagram in the room is sequentially deleted. 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.

[0029] 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.

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 in 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 in 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, the input of the opening is subsequently performed. 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 in which an opening with a hinged door is input at the entrance of the bedroom will be described. 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 (left opening, right opening, inside opening, outside 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 the three-seat sofa set J arranged in the living room in the original drawing in FIG. 3 is input, clicking "three-seat sofa set" in the above-mentioned furniture: equipment list 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 portion 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, furniture is not shown when the arrangement of furniture and fixtures is completed. Subsequently, a plan view of the second floor of the house H is created, and then the floor and wall surfaces of each indoor room 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 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.

More 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 moving images 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, the 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 movement of the viewpoint P and the observation point Q for the walk-through is performed by moving the mouse 14 back and forth, right and left, and the like, as well as by turning left and right in the menu display area A2 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 that time are displayed in a plan view. Although not shown, the screen 5 includes an image display area A1 of the display device 12.
Is displayed.

By the way, during the walk-through, there is a case where the user U desires to change the layout of the house H and 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, in the present invention, a plan view or the like of the house H is created by the workstation 11 itself for performing the walk-through. , By temporarily stopping the walkthrough and returning to the plan view of FIG.
Layouts and furniture changes can be easily performed. That is, FIG.
In the plan view of FIG. 6, if the floor plan is changed, the wall can be deleted, added, or moved as appropriate. If the furniture is changed or moved, the desired furniture can be deleted or added in the plan view. , Etc., the walk-through can be resumed immediately after the change.

As described above, according to the present invention, it is not necessary to change the drawing by the CAD system one by one, and it is not necessary to change the drawing.
Since the plan view and the like can be changed by itself, it is also possible to change the floor plan and the like during one walk-through and immediately restart the walk-through according to the changed contents.

Further, for example, regarding the opening O and the fitting D, it is not necessary to return to the plan view of FIG. 16, and it is possible to change the still image (perspective view) in which the walkthrough is stopped. For example, in the state of FIG. 19, when it is desired to change the opening O2 and the fitting D2 arranged in the opening O2 to one having a different size or the like, the movement of the viewpoint P and the observation point Q is stopped to temporarily stop the walkthrough. Then, after clicking on the fitting D2 to be changed, and clicking on the opening: fitting change button B28 in the menu display area A2, the display content of the menu display area A2 switches as shown in FIG.

Here, since the type of the fitting D2 to be changed is the sweep window, "sweep window" is displayed on the display section E10 of the change item in the menu display area A2, and the change candidate display section E11 is displayed. As the type of the sweep window, a plurality of candidates having different sizes, for example, “width 2200
X height 1800 "," width 2000 x height 1800 ",
"Width 1800 x height 1700" and the like are displayed. In addition,
A plurality of change candidates and the like for each fitting are prepared in advance and stored in the workstation 11.

For example, in the state shown in FIG. 20, a sweeping window of “width 2200 × height 1800” is selected as the fitting D2, and it is desired to change this to a sweeping window of “width 1800 × height 1700”. Change candidate display section E11
When the candidate of “width 1800 × height 1700” is clicked, the fitting D2 is changed and displayed as a “width 1800 × height 1700” sweep window in the image display area A1, as shown in FIG. At the same time, the opening O2 is also changed to a size corresponding to the size of the fitting D2 and displayed.

Further, in the display section E12 of the glass type in the menu display area A2, "transparent glass", "transparent glass" as a change candidate of the glass type used for the sweeping window which is the fitting D2.
A plurality of types of glass such as "ground glass" are displayed. For example, when “transparent glass” is selected as the glass of the sweep window in the state of FIG. 21 and this is changed to “frosted glass”, when “frosted glass” is clicked on the glass type display unit E12, FIG. Image display area A
As shown in FIG. 1, the glass of the sweep window, which is the fitting D2, is changed to “ground glass” and displayed.

When the operator S resumes the movement of the viewpoint P or the observation point Q after changing the kind of glass used for the fitting D2 or the like or the fitting D2, the walk-through is immediately performed based on the changed fitting D2. Can be resumed. In this case, if necessary, when the return button B29 of the menu display area A2 is clicked, the menu display area A
The display contents of 2 return to the state shown in FIG.

Next, as another example of changing the opening or the fitting during the walk-through, a procedure for changing the entrance opening O3 of the kitchen to one having a different shape or size in the state of FIG. 17 will be described. Kitchen entrance opening O3 during walkthrough
If you want to change the window, pause the walk-through, click inside the entrance opening O3, and then open: Fitting change button B
When 28 is clicked, the display contents of the menu display area A2 are switched as shown in FIG.

That is, the display section E10 of the change item displays “kitchen entrance opening”, while the display section E11 of the change candidate displays “width 1400 × height 2200 (upper circle)” and “width 1400 × Height 2200 (upper corner) "is displayed. Here, (upper circle) means that the upper end of the opening has a semicircular shape, and (upper corner) means that the upper end of the opening has a rectangular shape.

For example, in the state of FIG. 23, “width 1400 × height 2200 (upper circle)” is selected as the entrance opening O3, and this is changed to “width 1400 × height 2200 (upper corner)”. If the user wants to do so, he / she clicks “width 1400 × height 2200 (upper corner)” in the change candidate display area E11, and as shown in the image display area A1 in FIG. 24, the kitchen entrance opening O3 becomes the newly selected one. Changed and displayed. Also in this case, the walk-through can be immediately resumed based on the changed entrance opening O3.

In the above description, an example in which a fitting or an opening is changed in a still image state during a walk-through with respect to a discharge window (and an opening thereof) and an entrance opening of a kitchen has been described. For the fittings of
A plurality of change candidates are prepared in advance and the workstation 11
Can be changed to a different size or shape in the same manner.

A program for causing a computer such as the workstation 11 to execute the method for switching and displaying the opening and the fitting by the CG image as described above is provided on a CD-ROM.
The act of recording, selling, using, and the like on an appropriate recording medium such as a ROM or a magneto-optical disk is naturally included in the scope of the present invention.

[0071]

According to the first aspect of the present invention, there is provided a method for switching and displaying an opening of a building using a CG image, wherein three-dimensional shape data relating to the building is created in advance and stored in a computer.
By setting a viewpoint position and an observation point position with respect to the three-dimensional shape data, and then stopping or moving the viewpoint position and the observation point position, when displaying the building as a still image or a moving image by a CG image, A plurality of types of image data having different sizes and shapes are prepared in advance for the openings provided in the building, and in the still image state, the openings of the building are switched to a plurality of types and displayed. Since the moving image is displayed immediately, if the user desires to change the opening to a different size or shape during the walk-through with the CG image, the movement of the viewpoint and the observation point is stopped. In the still image state, the opening can be changed to suit the user's preference on this still image, and then the display of the moving image can be immediately resumed. In addition to improving the inspection and depiction functions of each part of the house by pass-through, it is possible to give the user sufficient satisfaction, and it is also possible to accurately and easily select the most appropriate one from a plurality of types for each opening. Will be able to do it.

According to a second aspect of the present invention, there is provided a method for switching and displaying an opening of a building and a fitting by using a CG image. When the building is displayed as a still image or a moving image by a CG image by setting the position and the observation point position and then moving the viewpoint position and the observation point position still or moving, the opening provided in the building and the opening A plurality of types of image data having different sizes and shapes are prepared in advance for the fittings arranged in the apparatus, and the opening and the fittings of the building are switched and displayed in a plurality of types in the still image state. Since the video is displayed immediately by the opening and the fittings,
If the user desires to change the opening and the fittings in the opening to ones having different sizes and shapes during the walk-through with the CG image, the movement of the viewpoint and the observation point is stopped and the still image state is set. The opening and fittings can be changed to suit the user's preference on the still image, and then the display of the moving image can be immediately resumed. In addition to providing a satisfactory feeling, the work of selecting the most appropriate one from a plurality of types of individual fittings can be performed accurately and easily.

According to a third aspect of the present invention, there is provided a method for switching and displaying an opening of a building and a fitting by using a CG image according to the second aspect of the present invention. Since the image data is prepared in advance, and the glass of the fitting of the building is switched to a plurality of types in the still image state and displayed, and the moving image is immediately displayed by the fitting after the switching of the glass,
If the user desires to change the glass of the fitting to a different type during the walk-through with the CG image, the movement of the viewpoint and the observation point is stopped to set a still image state, and the fitting is displayed on the still image. Change the glass to one that suits the user's preference, and then immediately resume displaying the video, further improving the inspection and depiction function of each part of the house by walkthrough to give the user sufficient satisfaction And the type of glass contained in the fittings can be selected accurately and easily.

A recording medium according to a fourth aspect is a computer-readable recording medium that records a program for causing a computer to execute the switching display method according to any one of the first to third aspects. , And the like, the useful method according to the present invention can be effectively spread.

[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 fitting during the walk-through.

FIG. 21 is an explanatory view showing a state where a fitting is changed during the walk-through.

FIG. 22 is an explanatory view showing a state where the glass in the fitting is changed during the walk-through.

FIG. 23 is an explanatory view showing a procedure for changing an opening during the walk-through.

FIG. 24 is an explanatory view showing a state where an opening is changed during the walk-through.

[Explanation of symbols]

11 Workstation (computer for walk-through) C CG image D Fixture H House (building) O Opening P Viewpoint position Q Observation point position

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 5B046 AA03 BA02 BA05 BA10 CA03 CA06 DA02 DA09 DA10 FA15 FA17 GA10 HA03 HA05 KA06 5B050 AA03 BA07 BA09 BA10 BA11 BA13 BA18 EA03 EA12 EA24 EA27 FA02 FA06 FA09 FA13 GA08

Claims (4)

[Claims] 1. A three-dimensional shape data relating to a building is created in advance and stored in a computer, a viewpoint position and an observation point position are set for the three-dimensional shape data, and the viewpoint position and the observation point position are set. When the building is displayed as a still image or a moving image by a CG image by stationary or moving, a plurality of types of image data having different sizes and shapes are prepared in advance for the openings provided in the building, and A method of switching and displaying an opening of a building using a CG image, wherein a plurality of types of openings of the building are switched and displayed in a still image state, and a moving image is immediately displayed by the switched opening. 2. A three-dimensional shape data relating to a building is created in advance and stored in a computer, and a viewpoint position and an observation point position are set for the three-dimensional shape data, and the viewpoint position and the observation point position are set. When the building is displayed as a still image or a moving image by a CG image by being stationary or moving, a plurality of types of images having different sizes and shapes of the opening provided in the building and the fittings arranged in the opening. Data is prepared in advance, and the opening and fittings of the building are switched and displayed in a plurality of types in the still image state, and a moving image is displayed immediately by the switched openings and fittings. Switching display method of building openings and fittings using CG images. 3. When the fitting includes glass, a plurality of types of image data having different types or colors of glass are prepared in advance for the fitting, and a plurality of types of glass for the fitting of the building are prepared in the still image state. 3. The method according to claim 2, wherein a moving image is immediately displayed by the fitting after the switching of the glass, and the switching of the fitting and the fitting by the CG image is performed. 4. A computer-readable recording medium on which a program for causing a computer to execute the switching display method according to claim 1 is recorded.