JP3240890B2 - Apparatus for creating appearance display data of buildings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for creating data for three-dimensionally displaying the appearance of a building such as a house in an initial stage of designing the building.

[0002]

2. Description of the Related Art In designing a house, it is desired to first determine a floor plan and display the appearance corresponding to the floor plan in three dimensions.

[0003] A three-dimensional display of such a building is possible by utilizing computer graphic technology.

[0004]

However, in order to display a building three-dimensionally by computer graphics, position data for specifying the building in a virtual three-dimensional space and image data corresponding to the appearance are required. Because of the necessity, the number of data to be processed becomes enormous, a memory capacity is large, a computer capable of high-speed operation is required, and the cost increases.

An object of the present invention is to provide an apparatus for generating appearance display data of a building, which can solve the above-mentioned problems.

[0006]

SUMMARY OF THE INVENTION According to the present invention, there is provided a data generating apparatus for appearance display of a building, wherein a virtual two-dimensional plane is composed of a plurality of unit rectangular plane cells. Means for storing position data of
Means for storing the floor plan data associated with the cell and including the outer wall data associated with the side of the cell, and specifying the floor plan area surrounded by the side of the cell corresponding to the outer wall data Means for deriving position data from the floor plan data, and a position for specifying the outer wall region from position data for specifying the floor plan in a virtual three-dimensional space to which a dimension in a direction orthogonal to the virtual two-dimensional plane is added. Means for deriving data, means for deriving, in the virtual three-dimensional space, position data for specifying a roof area covering the layout area from position data for specifying the layout area, and position data for specifying the outer wall area Means for associating preset image data with
Means for associating the preset image data with the position data specifying the roof area, position data specifying the outer wall area, position data specifying the roof area, and an image associated with each position data Means for outputting the data to a display device for displaying the appearance of the building three-dimensionally based on the data.

According to the configuration of the present invention, position data for specifying the outer wall region and the roof region are derived from the position data for specifying the floor plan region corresponding to the floor plan data on the virtual two-dimensional plane, and the derived position data are derived. Since the image data is associated with the image data, the number of data for specifying the building can be reduced as compared with the number of data required for specifying the building in the virtual three-dimensional space. Appearance display becomes possible.

Means for deriving position data for specifying the floor plan area include means for scanning cells in a predetermined order, means for storing each scanned cell as a checked cell, and means for scanning each cell as an outer wall. Means for determining whether or not the data is associated with the floor plan data including the data, and when each scanned cell is associated with the floor plan data including the outer wall data, the scan is interrupted and the outer wall data is Means for tracing the side of the cell corresponding to the outer wall data connected to one side of the cell, starting from one side of the corresponding cell, in a predetermined direction,
Means for storing a cell including each traced side as a checked cell;
Means for storing the position data of the intersection when the sides are orthogonal, and means for suspending the trace and re-scanning the cells excluding the checked cells when returning to the starting point of the trace. Preferably, the floor plan area is specified by the stored position data of each intersection.

Thus, even when the building has a stairwell or a separate building, the floor plan area can be specified, and the outer wall area and the roof area corresponding to the plan area can be specified.

The means for deriving position data for specifying the roof area includes means for deriving position data for specifying the bottom area of the roof from the position data for specifying the floor plan area, and means for deriving the outer periphery of the bottom area of the roof. Means for storing the position data of the intersection when the two sides of adjacent cells constituting the intersection are orthogonal to each other, and for each of the intersections, a maximum rectangular area including the intersection and taken in the bottom surface area of the roof Means for deriving position data to be specified; means for deriving position data for specifying the largest rectangular area that can be taken within the bottom area of the roof, including the bottom area of the roof that is not included in each rectangular area; The position data that specifies the unit roof area with the bottom area as the bottom area, the unit roof area with the larger bottom area covers the unit roof area with the smaller bottom area. Means for deriving so that the position data specifying each unit roof area, the image data associated with the position data is output in the order of small area of the rectangular area, the display device, If the position data output earlier and the position data output later overlap, the image data corresponding to the position data output earlier is displayed by displaying the image data corresponding to the position data output later. It is preferable to output an image that covers the display by.

Thus, the position data for specifying the roof area can be constituted by the position data for specifying a plurality of unit roof areas each having a rectangular bottom area, and the position data can be easily derived. In addition, even if the previously output position data and the subsequently output position data overlap, the display device does not match the previously output position data with the image data corresponding to the subsequently output position data. An image covering the corresponding image data is displayed, and an image of the roof area corresponding to the actual building without a sense of incongruity can be obtained.

[0012] The building has a plurality of hierarchies, and the floor plan data corresponding to the hierarchies is stored. In the virtual three-dimensional space, the floor plan area corresponding to each floor plan data is orthogonal to the virtual two-dimensional plane. The roof area is specified so as to cover the floor area of the uppermost floor, and is connected to the outer wall area corresponding to the floor area of the lower floor and the outer wall area corresponding to the floor area of the upper floor. Means for deriving position data for specifying the connection area, and means for associating preset image data with the position data for specifying the connection area, and position data for specifying the connection area, It is preferable to output image data associated with the position data to the display device.

[0013] Thus, it is possible to create appearance display data of a building having a plurality of levels, and at this time, it is possible to display a connection area between the outer wall of the upper floor and the outer wall of the lower floor, It is possible to obtain an image of the roof area corresponding to an actual building without a sense of discomfort.

[0014] When the floor area of the lower floor projects outwardly from the floor area of the upper floor, it is preferable that the connection area protrudes outward from the outer periphery of the projection area. Thereby, it is possible to display a building having a sunshade roof between the upper floor and the lower floor.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

A building appearance data generating apparatus 1 shown in FIG. 1 includes a computer 2, an input device 3 such as a keyboard and a mouse connected to the computer 2, and an external device for driving a storage medium such as a magneto-optical disk. Having a storage device 5;
It is connected to a display device 4 that displays the appearance of a building based on the data created by the data creation device 1. As the display device 4, for example, a game machine including a computer and a liquid crystal display can be used.

The data generating device 1 stores, in the internal storage device or the external storage device 5, the position of each cell in the virtual two-dimensional plane when the virtual two-dimensional plane is constituted by a plurality of unit rectangular plane cells. Store the data. For example, as shown in FIG.
A cell C is defined as a unit rectangular plane having vertices at points P parallel in the axial direction at intervals of Δx and parallel in intervals at Δy in the y-axis direction. As position data of each cell C, any one of the vertices is coordinate data. Is stored so as not to overlap with the adjacent cell C.

The data creating apparatus 1 stores the floor plan data associated with the cell C, including the outer wall data associated with the side of the cell C. For example, as shown in FIG. 3, in the case of a floor plan having a kitchen, a dining room, a living room, a Japanese-style room, etc., each cell C is either inside or outside of the floor plan. Is associated with the floor plan data according to the content of the item. For example, the cell C corresponding to dining is associated with image data indicating a floor pattern. Further, as for the cell C inside the floor plan, the outer periphery of which is a boundary with the outside of the floor plan, is associated with outer wall data which is information indicating that the side is an outer wall. Examples of the floor plan data associated with the cell C include, for example, Japanese Patent Application No. 6-257056.
Can be used.

In the present embodiment, the building has a plurality of levels. For example, if the building shown in FIG. 3 has a floor plan of the first floor, the floor plan of the second floor as shown in FIG. The data creation device 1 stores the floor plan data associated with the cell C and includes the outer wall data associated with the side of the cell C. The building hierarchy is not particularly limited, and may be a single story or three stories or more, and the floor plan data corresponding to the story is stored in association with the cell C. .

Referring to the flow charts of FIGS. 18 to 21, the procedure for creating the appearance display data of a building by the data creating apparatus 1 will be described.

First, the data creating apparatus 1 derives, from each of the floor plan data, position data for specifying a floor plan area surrounded by the side of the cell C corresponding to the outer wall data. Therefore, cells C are scanned in a predetermined order on the virtual two-dimensional plane (step 1). That is, the content of the data stored in association with each cell C is read. The scanning order of the cell C is, for example, in the case of the cell C as shown in FIG. 2, starting from the uppermost cell C on the left and going to the right. If all the upper cells C are scanned, the lower cell C Is similarly scanned from left to right. The data creation device 1 stores each scanned cell as a checked cell (Step 2).

The data creating apparatus 1 determines whether each scanned cell C is associated with the floor plan data including the outer wall data (step 3).

When each scanned cell C is associated with the floor plan data including the outer wall data, the data creating apparatus 1 interrupts the scan and starts from one side of the cell C corresponding to the outer wall data. The side of the cell C corresponding to the outer wall data connected to one side of the cell C is traced in a predetermined direction, for example, as shown in (1) to (12) of FIG. 5 (step 4). In FIG. 5, a hatched portion indicates a cell C associated with the floor plan data, and an arrow indicates a trace direction. That is, as shown in (1) of FIG. 5, in the case of the cell C in which the upper side and the left side are associated with the outer wall, and both sides are not traced yet,
Trace to the right along its upper side. As shown in FIG. 5 (2), in the case of a cell C in which the upper side and the right side are associated with the outer wall and the upper side has been traced and the right side has not been traced yet, the cell C is traced downward along the right side. As shown in (3) of FIG. 5, in the case of a cell C in which the lower side and the right side are associated with the outer wall and the right side has been traced and the lower side has not been traced yet, the cell C is traced leftward along the lower side. . As shown in (4) of FIG. 5, in the case of the cell C in which the lower side and the left side are associated with the outer wall and the lower side has been traced and the left side has not been traced, the cell C is traced upward along the left side. (5) of FIG.
As shown in the above, the upper sides of two cells C adjacent to each other on the left and right are associated with the outer wall, the upper side of the left cell C has been traced, and the upper side of the right cell C has not been traced yet.
Trace to the right along its upper side. As shown in FIG. 5 (6), the right sides of two vertically adjacent cells C are associated with the outer wall, the right side of the upper cell C has been traced, and the right side of the lower cell C has not been traced yet. If so, trace down along the right side.
As shown in FIG. 5 (7), the lower sides of two cells C adjacent to each other on the left and right are associated with the outer wall, the lower side of the right cell C is traced, and the lower side of the left cell C is still traced. If not, trace to the left along its lower side. As shown in FIG. 5 (8), the left sides of two vertically adjacent cells C are associated with the outer wall, the left side of the lower cell C has been traced, and the left side of the upper cell C has not been traced yet. In this case, trace upward along the left side. As shown in FIG. 5 (9), the right side of the cell C located above and the upper side of the cell C located diagonally lower right of the cell C are associated with the outer wall, and the upper side of the cell C above is traced. If the upper side of the cell C at the lower right of the cell C has not been traced yet, tracing is performed rightward along the upper side. As shown in FIG. 5 (10), the lower side of the cell C located above and the right side of the cell C located diagonally lower left of the cell C are associated with the outer wall, and the lower side of the cell C above is traced. If the right side of the cell C at the lower left has not been traced yet, the cell C is traced downward along the right side. As shown in FIG. 5 (11), the lower side of the cell C located above and the left side of the cell C located diagonally lower right of the cell C are associated with the outer wall, and the left side of the cell C diagonally lower right. Is traced, and the lower side of the upper cell C is not traced yet, and traces to the left along the lower side. As shown in FIG. 5 (12), the left side of the cell C located above and the upper side of the cell C located diagonally lower left of the cell C are associated with the outer wall, and the upper side of the cell C diagonally lower left. Is traced, and the left side of the upper cell C is not traced yet, traces upward along the left side.

The data creation device 1 stores the cell C including each traced side as a checked cell (step 5). If two sides of the traced adjacent cells are orthogonal, the position data of the intersection is stored (steps 6 and 7). For example, FIG.
(4) In (9) to (12), the virtual 2 of the intersection P
The coordinates on the dimensional plane are stored.

Next, it is determined whether or not the trace has been completed (step 8). Returning to the starting point of the above trace,
The tracing of the outer wall surface over one round is completed. The area surrounded by the outer wall surface is the floor plan area. That is, the floor plan area is specified by the stored intersection position data.

When returning to the starting point of the trace, the data creating apparatus 1 interrupts the trace, scans the cells other than the checked cells again (step 9), and traces in the same manner as described above. Thus, even when the building has a stairwell or a separate building, the floor plan area can be specified. When the scanning of all the cells is completed, the position data for specifying the layout area is determined.

The space between the stored one intersection and the intersection stored next to the intersection is defined as one outer wall surface, and the coordinates of the two intersections constitute the base of one outer wall surface. Points. By adding a constant value to the coordinates of the two intersections in the dimension in the direction orthogonal to the virtual two-dimensional plane, for example, in the z-axis direction orthogonal to the xy coordinate plane,
The coordinates of two points forming the top side of the one outer wall surface are generated. The data creating device 1 stores the four coordinates of two points constituting the bottom side and two points constituting the top side of the one outer wall surface as points, and creates a point list. Similarly, the coordinates of the points forming the bottom and top sides of each outer wall surface are also stored and added to the point list, based on all the other stored intersections forming the location data for specifying the layout area. Step 10).

Further, since one outer wall surface is constituted by the four points, a combination of coordinates of the point is stored as a surface corresponding to the one outer wall surface, and a surface list is created. I do. Similarly, the surface corresponding to each outer wall surface is stored and added to the surface list (step 11). That is, each surface becomes position data for specifying the outer wall region in the virtual three-dimensional space.

In the virtual three-dimensional space, the floor plan area corresponding to the floor plan data of the first floor and the floor plan area corresponding to the floor plan data of the second floor are spaced apart in a direction orthogonal to the virtual two-dimensional plane. . Data creation device 1
Derives position data for specifying a connection area between the outer wall area corresponding to the floor plan area of the first floor and the outer wall area corresponding to the floor plan area of the second floor (step 12).

Next, the data creating device 1 is, for example, a virtual 2
In the two-dimensional plane, a floor plan area A as shown by a solid line in (1) of FIG. 6 and a floor plan area B as shown by a broken line in (2) of FIG. Then, data specifying the maximum floor plan area E indicated by a broken line in the figure as shown in FIG. Note that the maximum floor area E may or may not be equal to the floor area of the first floor. It is determined whether each of the cells C is inside the floor plan area of the first floor and the floor plan of the second floor or outside both floor plan areas. If at least one of the cells C is inside, the cell C is the maximum floor plan area. Let it be E.

In the same manner as when the point list is created, the points of the maximum layout area E are stored and a point list is created (step 14). If there is a stairwell, two point lists are created. Therefore, it is determined which point list is the outer periphery of the maximum floor plan area E, and the determination result is stored (steps 15 and 16). This is because when there is a stairwell, a awning roof described later is formed only on the outer peripheral side, and therefore no awning roof is formed on the inner peripheral side.

It is assumed that a sunshade roof extending outward from the entire area of the maximum layout area E is formed as the connection area. As shown in FIG. 7, the height H and the roof angle α of the sunshade roof are set in advance and stored in the data creation device 1, and the width L of the sunshade roof is H · cos α / si.
It is calculated by nα (step 17).

Next, the sunshade roof bottom area F as indicated by a two-dot chain line in FIG. 6C is specified by adding the width L of the sunshade roof outward from the maximum floor plan area E. The points to be executed are stored, and a point list is created (step 18). As shown in (3) of FIG. 6, the maximum floor plan area E is 2 mm of the width L of the sunshade roof.
In the case of having outer wall portions m and n opposed at an interval of less than twice,
If the width L of the awning roof is added outward from the maximum floor plan area E, the awning roof bottom area F is specified in an overlapping manner. In that case, a point list excluding points specifying the sunshade bottom surface area F is created so that such duplicate specification does not occur.

Next, by subtracting the width L of the sunshade roof from the sunshade roof bottom surface area F inward, FIG.
In step 19, a point for specifying the upper surface area G as indicated by a dashed line is stored, and a point list is created (step 19). When the point list specifying the shaded roof bottom surface area F is corrected so that the overlapping specification of the shaded roof bottom surface area F does not occur, the upper surface area G is different from the maximum floor plan area E. Matches the maximum floor plan area. A surface composed of the coordinates of the point list specifying the upper surface area G is stored in association with the upper surface area G, and a surface list of the upper surface area G is created (step 20).

Next, in order to form a sunshade roof only in a portion of the outer periphery of the upper surface area G that protrudes from the floor plan area B on the second floor, the point list for specifying the sunshade roof bottom area F is corrected (step 21). ). That is, the floor plan area B and the upper surface area G of the second floor are overlapped, and
In FIG. 9, a point for specifying the overhang area H indicated by hatching in FIG. A shaded roof slope area I indicated by hatching with a two-dot chain line in FIG. 9 in which the shaded roof width L is added outward from the overhang area H.
Is stored. The overlapped portion of the awning roof slope area I and the upper surface area G is the corrected awning roof bottom area F ′ as shown in FIG. 10, and a point for specifying the corrected awning roof bottom area F ′. Create a list. Shaded roof bottom surface area F 'after the correction
Is stored in association with the shaded roof bottom area F 'after the correction, and a surface list of the shaded roof bottom area F' is created (step 22).

Next, the points for specifying the shaded roof slope area I are obtained from the points for specifying the corrected shaded roof bottom area F 'and the points for specifying the upper face area G, and stored to create a point list. (Step 23).
A surface composed of the coordinates of the created point list is stored in association with the shade roof slope area I, and a surface list of the shade roof slope area I is created (step 24). FIG. 11 illustrates a surface S corresponding to each surface of the sunshade roof slope region I.

Next, in the connection area, a part other than the shaded roof slope area I is defined as a wall surface area. In the point list of the floor plan area B on the second floor, points specifying the wall surface area correspond to points corresponding to portions other than the shaded roof slope area I, and only the height H of the shaded roof from that point, that is, a virtual area. In a dimension in a direction orthogonal to the two-dimensional plane, for example, in a z-axis direction orthogonal to the xy coordinate plane, it is obtained from a point obtained by subtraction. The obtained points are stored to create a point list (step 25). A surface composed of the coordinates of the point list of the wall surface area is stored in association with the wall surface area, and a surface list is created (step 26).

Next, in the virtual three-dimensional space, the data creating apparatus 1 arranges the floor area B on the top floor, in this embodiment, the second floor.
Is derived from the point list specifying the roof area covering the floor plan area B on the second floor. First, by adding a preset shade width of the roof outward from the floor plan area B on the second floor, a point for specifying the roof bottom area is obtained and stored, and a point list is created (step 27). For example, in the case of a floor plan B of the second floor having a stairwell L specified by a point P as shown in FIG. 12A, the shade width W of the roof is added so as to be directed outward, and FIG. A roof bottom area R specified by a point P ′ as shown in 2) is specified. Next, when the floor plan area B of the second floor has outer wall portions j and k facing each other at an interval of twice or less of the shade width W of the roof, the shade width W of the roof is moved out of the floor plan area B of the second floor. If it adds so that it may go to the direction, the roof bottom surface area R will be specified redundantly. In that case, (3) in FIG.
As shown in (1), a point list is created by excluding points specifying the roof bottom surface region R so that such duplicate specification does not occur.

Next, at each point P 'constituting the roof bottom area R, the data creating apparatus 1 obtains a point which includes the point P' and specifies the largest rectangular area which can be taken in the roof bottom area R. Are stored as a point list (step 28). The rectangular areas may partially overlap. If the point P 'corresponds to the vertex of the already specified rectangular area, the same rectangular area is specified, and the processing at the point P' is skipped. Thus, FIG.
In the case of the roof bottom region R as shown in 2 (3), first,
A rectangular area T1 as shown by hatching in (1) of FIG. 13 is specified, a rectangular area T2 as shown by hatching in (2) of FIG. 13 is specified, and then (3) of FIG. , A rectangular area T3 as indicated by hatching is specified. Further, the data creation device 1
Calculates the points that include the roof bottom area R that is not included in each of the rectangular areas T1, T2, and T3 and that specify the largest rectangular area that can be taken within the roof bottom area R, and store the points as a point list. As a result, a rectangular area T4 as shown by hatching in FIG.
Then, a rectangular area T5 as indicated by hatching in (2) of FIG. 14 is specified.

Next, the data creating apparatus 1 rearranges and stores the specified point list of each rectangular area in ascending order of the area of the rectangular area (step 2).
9).

Next, the data creating apparatus 1 specifies position data for specifying a unit roof area with each specified rectangular area as a bottom area, and a unit roof area with a large bottom area as a unit roof area with a small bottom area. Derived so that it can be covered. That is, the points of the unit roof area are obtained and stored, and a point list is created (step 30). In the present embodiment, the shape of the unit roof region corresponds to a so-called ridge-type roof shape. For example, (1) of FIG.
As shown in (3), the points of the vertices of each rectangular area are defined as P0, P1, P2, and P3, and the vertices of the rectangular area among the vertices of the triangular area whose short side is one side are If the points that do not overlap are P4 and P5, the points P0, P1, P2, P3, P4, P5
The unit roof area can be specified by the coordinates in the three-dimensional space. For example, a dimension of a preset long side between P0 and P1 is a, a dimension of a preset short side between P1 and P2 is b, and an angle formed by the triangular region with respect to the rectangular region is preset. Let α be the dimension of the short side thus obtained. Thus, if a> b, e = b / 2, and if a ≦ b, e = a
/ 2, the height h of each unit roof area is given by h = e · si
It can be obtained from nα / cosα. By storing the points P0, P1, P2, P3, P4, and P5, a point list that specifies each unit roof area is created. In addition, a surface constituted by the coordinates of the point list is stored in association with the unit roof area, and a surface list is created (step 31). For example,
When the coordinates of the point P0 are set as the origin in the three-dimensional virtual space, the point list becomes (0, 0, 0) for P0 and (a, 0, 0) for P1.
And (a, b, 0) for P2, (0, b, 0) for P3, and (e,
e, h), and for P5, if a> b, (e,
be, h), and when a ≦ b, (e, ae,
h). In addition, as shown in (1) to (3) of FIG. 15, the surface list includes trapezoidal areas S0 and S2 each having the long side of each rectangular area as one side, and triangles each having the short side of each rectangular area as one side. Assuming that the regions are S1 and S3, S0 becomes [P0, P1, P5, P4], S1 becomes [P1, P2, P5, P5], and S2 becomes [P2, P3, P4, P5]. S3 is [P3, P0, P4, P4].

Next, the data creating apparatus 1 associates the standard image data set in advance with the surface for specifying the outer wall area, that is, the coordinates specified by the surface (step 32). The standard image data is, for example, data for specifying a color or a pattern of the outer wall region, and is created in advance and stored in the data creating device 1. As shown in FIG. 16, the dimension of one side of the outer wall area U in the virtual two-dimensional plane is N times the dimension q of one side of the cell C, and the height orthogonal to the virtual two-dimensional plane of the outer wall area U. If the height dimension is r, one piece of standard image data corresponding to a rectangular area having a dimension q of one side of the cell C and a height dimension r of the outer wall area is prepared, and the outer wall area U is prepared.
Are copied by the number N of cells C corresponding to the outer wall area U. Thereby, the arrangement coordinates of each standard image data in the virtual three-dimensional space are specified. In addition to the arrangement coordinates, data relating to the display mode of each standard image data, for example, translucent display instruction data may be associated with the outer wall area.

When the floor plan data associated with the cell C corresponding to the outer wall area U includes data specific to the outer wall area portion corresponding to the cell C, image data corresponding to the specific data is displayed. Is associated with a portion corresponding to the cell C in the outer wall region (step 3).
3). For example, when the specific data includes window member specific information, image data for displaying an image corresponding to the window member is associated instead of the standard image data.

Next, the data generating apparatus 1 specifies the connection area, that is, the top area G, the shaded roof slope area I, the shaded roof bottom area F ', and the surface for specifying the wall surface area, that is, the surface. The preset image data is associated with the coordinates specified by (step 34). The image data associated with the upper surface area G, the shade roof bottom surface area F ′, and the wall surface area area is, for example, data for specifying the color and pattern of the upper surface area G, and the data corresponding to the rectangular area is created in advance. The upper and lower areas G are combined and combined in accordance with the size of the upper surface area G. Sunshade roof area I
However, for example, as shown in FIG. 17, when a rectangular portion Ia and a triangular portion Ib are included, image data corresponding to the rectangular portion Ia and data corresponding to the triangular portion Ib are prepared and stored one by one. Then, a combination of the rectangular part Ia and the triangle part Ib, which are enlarged or reduced according to the dimensions, is associated with the shade roof area I.

Next, the data creating apparatus 1 associates the preset image data with the surface that specifies each unit roof area, that is, the coordinates specified by the surface (step 35). When each unit roof area is of the ridge type as shown in FIG. 15, for example, it is composed of a trapezoidal part and a triangular part, so that the image data corresponding to the rectangular, triangular and triangular parts obtained by dividing the trapezoidal part. Are prepared and stored one by one, and those that are enlarged or reduced according to the dimensions of the rectangle and the triangle are combined and associated with the unit roof area.

Next, the data generating device 1 determines the coordinates of the image data associated with the surface specifying the outer wall area, the coordinates of the image data associated with the surface specifying the connection area, and The coordinates of the image data associated with the surface that specifies the unit roof area
The coordinates are converted into coordinates corresponding to the display position in the virtual three-dimensional space (step 36). That is, the surface list of the outer wall region, the surface list of the connection portion region, and the surface list of each unit roof region are respectively set in individual coordinate systems, and are virtual 2
In the height direction orthogonal to the dimensional plane, the outer wall region, the connection portion region, and each unit roof region are specified in a state where there is no relatively high difference. Therefore, coordinate conversion is performed to specify each of the regions so that there is a relative difference in height, and the regions are stored. Note that each of these areas is assumed to be a virtual 3
As a coordinate system for specifying a display position in a dimensional space, for example, a world coordinate system can be used.

Next, the data creating device 1 obtains the display viewpoint position in the virtual three-dimensional space (step 3).
7). The viewpoint position is the virtual 3 of each of the stored areas.
It is determined so as not to interfere with the display position in the dimensional space. For example, when the display position of each region in the virtual three-dimensional space is specified by the xyz coordinate system, the viewpoint position is larger than the maximum value of the x coordinate, y coordinate, and z coordinate of the display position, and is larger than the minimum value. It is determined so as to satisfy the condition of becoming smaller. When the viewpoint position is movable, an expression representing a locus satisfying the condition is obtained.

The coordinates of the outer wall area, the connection area, and the unit roof area of the building in the virtual three-dimensional space, the image data associated with each area, and the viewpoint position are output to the display device 4. The display device 4 stereoscopically displays the appearance of the building corresponding to the data based on the built-in program. It should be noted that a known program is used as a program for displaying the appearance of the building three-dimensionally from the coordinates of each region of the building in the virtual three-dimensional space, the image data associated with each region, and the viewpoint position. be able to.

[0049]

According to the building appearance display data generating apparatus of the present invention, the number of data required for specifying a building in a virtual three-dimensional space can be reduced, and the building can be inexpensively computerized. Can be displayed.
Further, even when the building has a stairwell or a separate building, data necessary for displaying the building can be created.
In addition, it is possible to obtain an image of a roof area without a sense of incongruity corresponding to an actual building having a plurality of floors, and further to display a building having a sunshade roof between an upper floor and a lower floor.

[Brief description of the drawings]

FIG. 1 is a configuration explanatory diagram of a data creation device according to an embodiment of the present invention;

FIG. 2 is an explanatory diagram of a cell according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram of floor plan data according to the embodiment of the present invention.

FIG. 4 is an explanatory diagram of floor plan data according to the embodiment of this invention;

FIGS. 5A to 5C are diagrams showing trace examples of a cell according to the embodiment of the present invention, respectively.

FIG. 6 is a diagram showing a floor plan area on the first floor, (2) a floor plan area on the second floor, and (3) showing a maximum floor plan area in the embodiment of the present invention.

FIG. 7 is a diagram showing a dimensional relationship of a sunshade roof according to the embodiment of the present invention.

FIG. 8 is a diagram showing an upper surface area according to the embodiment of the present invention.

FIG. 9 is a diagram showing an overhang region H according to the embodiment of the present invention.

FIG. 10 is a diagram showing a sunshade roof bottom surface area according to the embodiment of the present invention;

FIG. 11 is a diagram showing a shaded roof slope area according to the embodiment of the present invention.

FIGS. 12 (1) to (3) are diagrams showing a procedure of creating a roof bottom area according to the embodiment of the present invention.

FIGS. 13A to 13C are diagrams showing a rectangular area in a roof bottom area according to the embodiment of the present invention, respectively.

FIGS. 14A and 14B are diagrams showing a rectangular area in a roof bottom area according to the embodiment of the present invention, respectively.

FIGS. 15A to 15C are diagrams showing a unit roof shape according to the embodiment of the present invention, respectively.

FIG. 16 is a diagram showing an outer wall region according to the embodiment of the present invention.

FIG. 17 is a diagram showing a shade roof area according to the embodiment of the present invention.

FIG. 18 is a flowchart showing a procedure for creating appearance display data of a building by the data creating apparatus according to the embodiment of the present invention.

FIG. 19 is a flowchart showing a procedure for creating appearance display data of a building by the data creating apparatus according to the embodiment of the present invention.

FIG. 20 is a flowchart showing a procedure for creating data for displaying the appearance of a building by the data creating apparatus according to the embodiment of the present invention.

FIG. 21 is a flowchart showing a procedure for creating data for displaying the appearance of a building by the data creating apparatus according to the embodiment of the present invention;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Data creation device 2 Computer 3 Input device 4 Display device

Continuation of the front page (56) References JP-A-7-125492 (JP, A) JP-A-6-231214 (JP, A) JP-A-3-5890 (JP, A) Kato and Odaka, "Outer shape Unlimited Housing Layout Design Support System, ”The 34th Annual Conference of the Information Processing Society of Japan, 1987, 4G-5, p. 2029-2030 (58) Field surveyed (Int. Cl. ⁷ , DB name) G06F 17/50 680 G06F 17/50 610 JICST file (JOIS)

Claims (4)

(57) [Claims] 1. A virtual 2D plane of each cell when a virtual 2D plane is constituted by a plurality of unit rectangular plane cells.
Means for storing position data on the dimensional plane; means for storing layout data associated with the cell, the data including outer wall data associated with the side of the cell; Means for deriving, from the layout data, position data specifying the layout area surrounded by the side of the cell to be specified, and specifying the layout area in a virtual three-dimensional space obtained by adding dimensions in a direction orthogonal to the virtual two-dimensional plane. Means for deriving position data specifying the outer wall region from the position data to be obtained, and position data specifying the roof region covering the floor plan region from the position data specifying the floor plan region in the virtual three-dimensional space. Means for associating position data specifying the outer wall area with preset image data; and means for specifying the roof area. Means for associating preset image data with data, position data specifying the outer wall area, position data specifying the roof area, and image data associated with each position data, and means for outputting to the display device stereoscopically displays the appearance of a building based, means for deriving location data identifying the floor plan area
Stores and means for scanning the cells in a predetermined order, each scanned cell as the checked cell hand
Rows and floor plan data including outer wall data
Means for determining whether or not each scanned cell is associated with the floor plan data including the outer wall data.
If so, interrupting that scan
Both start from one side of the cell corresponding to the outer wall data
Cell corresponding to the outer wall data connected to one side of the cell
Means for tracing the side of the trajectory in a predetermined direction, and a cell including each traced side as a checked cell.
Means that the two sides of the traced adjacent cells are orthogonal.
Means for storing the position data of the intersection, and when returning to the starting point of the trace,
At the same time, re-scan cells other than the checked cells.
Means for changing the layout area based on the stored position data of each intersection.
Apparatus for creating appearance display data of the specified building. 2. The virtual two-dimensional plane is defined by a plurality of unit rectangular planes.
Virtual 2 of each cell when it is composed of
Means for storing position data on a dimensional plane, and layout data associated with the cell,
Stores data including outer wall data associated with cell edges
And the layout enclosed by the side of the cell corresponding to the outer wall data
Deriving location data specifying the area from the floor plan data
Means for adding a dimension in a direction orthogonal to the virtual two-dimensional plane.
In the three-dimensional space, the position data specifying the layout area
Derive position data specifying the outer wall area from the data
Means to specify the layout area in the virtual three-dimensional space
From the location data, specify the roof area that covers the floor plan area.
The means for deriving the position data to be specified and the position data for specifying the outer wall area thereof are set in advance.
The means for associating the image data and the position data specifying the roof area are set in advance.
Means for associating image data, position data specifying the outer wall area, and the roof area
The location data to be specified and the location data
Image data and the appearance of the building based on those data
Means for outputting to a display device for stereoscopic display, and means for deriving position data for specifying the roof area, the position data for specifying the floor plan area,
Means for deriving position data for identifying the bottom surface area, and the adjacent cells constituting the outer periphery of the roof bottom area.
If two sides are orthogonal, store the position data of the intersection
At each intersection, including the intersection and the roof
The largest rectangular area that can be taken within the bottom area of
Means to derive the position data to do, including the bottom area of the roof not included in each rectangular area and
The largest rectangular area that can be taken within the bottom area of the roof
Means for deriving the position data to be specified, and specifying the unit roof area with each rectangular area as the bottom area
For position data, the unit roof area with a large bottom area
Derived to cover a small unit roof area
Means for identifying each unit roof area, and the position data
The image data associated with the data
Are output in ascending order of the product, and the display device outputs the position data output first and the position data output later.
If the input position data overlaps with the
Display by image data corresponding to the
To the image data corresponding to the position data output earlier.
A data generating device for displaying the appearance of a building that outputs an image covering the display of the building. 3. The virtual two-dimensional plane is defined by a plurality of unit rectangular planes.
Virtual 2 of each cell when it is composed of
Means for storing position data on a dimensional plane, and layout data associated with the cell,
Stores data including outer wall data associated with cell edges
And the layout enclosed by the side of the cell corresponding to the outer wall data
Deriving location data specifying the area from the floor plan data
Means for adding a dimension in a direction orthogonal to the virtual two-dimensional plane.
In the three-dimensional space, the position data specifying the layout area
Derive position data specifying the outer wall area from the data
Means to specify the layout area in the virtual three-dimensional space
From the location data, specify the roof area that covers the floor plan area.
The means for deriving the position data to be specified and the position data for specifying the outer wall area thereof are set in advance.
The means for associating the image data and the position data specifying the roof area are set in advance.
Means for associating image data, position data specifying the outer wall area, and the roof area
And position data for specifying, associated with each position data
Image data and the appearance of the building based on those data
Means for outputting to a display device for stereoscopic display, wherein the building has a plurality of hierarchies, and a number corresponding to the hierarchy is provided.
Floor plan data is stored, and in the virtual three-dimensional space,
The floor plan area extends in a direction orthogonal to the virtual two-dimensional plane.
The roof area is located at a distance and covers the floor area of the highest floor.
Is, the lower floor of the corresponding outer wall area floor plan area and floor Mato
Position to specify the connection area with the outer wall area corresponding to the
Means for deriving the position data and position data for specifying the connection area thereof are set in advance.
Means for associating the image data with the position data specifying the connection area and the position data
Output image data associated with the data to the display device
Appearance display data generating apparatus of the building to be. 4. The floor plan of the lower floor is a floor plan of an upper floor.
If the connection area extends beyond the area,
Extends outward from the outer periphery of the overhang area.
3. The data creation device for appearance display of a building according to 3 .