JP7625563B2 - Roof material allocation device - Google Patents

Description

This invention relates to a roofing material allocation device for allocating roofing materials to the roof of a building.

Traditionally, roofing materials have been placed on the roofs of buildings such as Japanese houses. When placing these roofing materials, it is important to consider how to allocate multiple roofing materials to each roof, and craftsmen allocate them on site based on the shape of the roof.

Patent No. 3584022

However, if a craftsman were to assign roofing materials to the roof on-site as described above, the work would take time and require specialized knowledge to assign the materials.

In view of the above problems, the present invention aims to provide a roofing material allocation device that can allocate roofing materials to the roof of a building based on the building's floor plan.

The present invention is a roofing material allocation device for allocating roofing materials to the roof of a building, comprising: a frame line creation means for creating a frame line indicating the outer frame of a roof plan of the roof corresponding to a floor plan of the building and actual size data of the frame line; a slope input means for inputting the slope of the roof; a roof shape specification means for specifying the roof shape of the roof; a roof line creation means for creating a roof line corresponding to the specified roof shape within an area surrounded by the frame line; a roof surface creation means for creating one or more roof surface candidates surrounded by the frame line and the roof line, inclining the roof surface candidates based on the slope to obtain actual size data of the roof line, and creating roof surfaces corresponding to the actual size data of the frame line and the actual size data of the roof line; a roof material specification means for specifying a rectangular roof material to be allocated to the roof; and an allocation means for allocating an allocation area corresponding to the roof material to the roof surface so that the frame lines are parallel to the roof material and so that the vertical direction of the roof material and the flow direction of the roof surface are parallel, wherein the roof line creation means, when the specified roof shape is a hipped roof, adds an attribute indicating "eaves" to each of the east-west-north-south frame lines, and when adjacent frame lines intersect at 90°, creates a corner ridge at a position diagonally 45° from one of the adjacent frame lines, and when adjacent frame lines intersect at 270°, creates a valley at a position diagonally 135° from one of the adjacent frame lines, and when one corner ridge intersects with the other corner ridge, the one corner ridge and the other corner ridge end at that position, and creates a flat ridge by connecting the point where the two corner ridges intersect with the point where the other two corner ridges intersect, thereby creating the roof line for the hipped roof. The present invention also relates to a roof material allocation device for allocating roof materials to the roof of a building, comprising: a frame line creation means for creating a frame line indicating the outer frame of a roof plan of the roof corresponding to a floor plan of the building and actual size data of the frame line; a slope input means for inputting the slope of the roof; a roof shape identification means for identifying the roof shape of the roof; a roof line creation means for creating a roof line corresponding to the identified roof shape within an area surrounded by the frame line; and a roof surface creation means for creating one or more roof surface candidates surrounded by the frame line and the roof line, tilting the roof surface candidates based on the slope to obtain actual size data of the roof line, and creating the actual size data of the frame line and a roof surface corresponding to the actual size data of the roof line. The roof material allocation device has a roof material identification means for identifying a rectangular roof material to be allocated to the roof, and an allocation means for allocating an allocation area corresponding to the roof material to the roof surface so that, for each roof surface, the horizontal direction of the roof material is parallel to the frame line of the roof surface, and the vertical direction of the roof material is parallel to the flow direction of the roof surface, from an allocation start point specified on the roof surface, and the roof line creation means, when the identified roof shape is a gable roof, adds an attribute indicating ``eaves'' and an attribute indicating ``ridge'' to the frame lines in the east-west-north-south directions, and creates a flat ridge on the roof surface between the opposing eaves, thereby creating the roof line for the gable roof.

According to the present invention, roofing materials can be allocated to the roof of a building based on the floor plan of the building.

This is a perspective view of a hipped roof. FIG. 1 is a perspective view of a gable roof. FIG. FIG. The following are explanatory diagrams of the gradients: (a) is an explanatory diagram of a 3-inch gradient, (b) is an explanatory diagram of a 4-inch gradient, (c) is an explanatory diagram of a 5-inch gradient, and (d) is an explanatory diagram of a 6-inch gradient. An explanatory diagram of the names used for roofs. FIG. 2 is a block diagram of a roofing material allocation device. 4 is a flowchart of the roof material allocation device. 13 is a flowchart for allocating real items and cut items. FIG. 2 is a perspective view showing an example of a roof for which roof materials are allocated to create a roof plan. FIG. FIG. 1 is a diagram of a roof plan that does not have a roof line. This is a diagram of a roof plan with the roof lines drawn. An explanatory diagram of the east side roof surface. This is an enlarged plan view of the area where the roof material is being laid out. This is a roof plan with roof materials laid out.

The following describes a roofing material allocation device 10 according to one embodiment of the present invention with reference to Figures 1 to 13.

The roofing material allocation device 10 of this embodiment is a support system used when allocating rectangular roofing materials to the roofs of buildings such as Japanese houses, and can be realized by a roofing material allocation program that runs on a personal computer (computer).

[A] Explanation of Terms First, the terms used in this specification will be explained.

As shown in Figure 6, the names of the various parts of a building roof include the ridge, bow, gable, wall edge, eaves, eaves, valley, gable, and overhang.

"Roofing material" 1 is a component attached to a roof with a roughly rectangular planar shape, and includes slate roofing, galvalume steel sheets, roof tiles, etc. Slate roofing is a thin roofing material 1, and slate is made from cement and fibers, and is as widely used as roof tiles. Galvalume steel sheets are a building material and are also called sheet metal. They are used in various places on the exterior of houses, and are made of aluminum-zinc alloy-plated steel sheets, and most of what are called metal roofs are made of galvalume steel sheets.

The "roof shapes" of building roofs include the hip roof shown in Figure 1, the gable roof shown in Figure 2, the sloping roof shown in Figure 3, and the flat roof shown in Figure 4.

A "roof plan" is a plan that shows the structure of a roof, among other plans that show the design of a building. It is a drawing that shows the roof, shape, and finish of the building as seen from directly above, like a plan of the roof surface. It is a plan view of the exterior shape of the roof, and includes the roof shape, slope, materials, etc.

"Flow direction" refers to the direction along the roof's slope (gradient direction).

As shown in Figure 5, roof "slope" can be 3 sun, 4 sun, 5 sun, or 6 sun. A 3 sun slope is a 3 sun downward slope for a 10 sun, as shown in Figure 5(a). "Sun" is a unit of length in the shakkanho system, and in Japan it is approximately 30.303 mm, which is defined as 1/10 of a shaku.

"Allocation" refers to arranging allocation areas corresponding to rectangular roofing materials 1 in order on the roof surface.

The "allocation area" corresponding to roof material 1 is not the size of roof material 1 itself, as shown by the hatched area in Figure 15, but a rectangular area expressed by the horizontal dimension a of roof material 1 in the horizontal direction and the working width d in the vertical direction.

The "working width d" refers to the vertical dimension of roofing material 1 that is actually visible from the outside, excluding the dimension c of the hidden part from the vertical dimension b of roofing material 1, because the upper part of roofing material 1 is placed overlapping and hidden by the lower part of the roofing material 1 above, as shown in Figure 15.

"Genuine" refers to roofing material 1 that can be allocated while retaining the component size as shipped, relative to the roofing material 1 to be allocated.

"Cutting" refers to parts that are cut from their original size and then allocated.

[B] Configuration of roofing material allocation device 10 The configuration of the roofing material allocation device 10 will be described with reference to the block diagram of FIG.

The roofing material allocation device 10 comprises a personal computer control unit 12, which is connected to a display device 14 such as a liquid crystal display device, a printer 16, an input unit 18 such as a keyboard or mouse, and a plan view input unit 20 such as a scanner or CAD device. The control unit 12 also has a roof shape memory unit 22, a roofing material memory unit 24, a real object data memory unit 26, a cut object data memory unit 28, and a memory unit 30.

The roofing material memory unit 24 stores the type of roofing material 1 and the vertical and horizontal dimensions of each roofing material 1.

The real data storage unit 26 stores data regarding the real roof material 1.

The cutting data storage unit 28 stores data on the cutting of the roofing material 1.

The roof shape memory unit 22 stores various types of roof shapes, such as hip roofs, gable roofs, shed roofs, flat roofs, etc., as shown in Figures 1 to 4.

The memory unit 30 stores the roof material allocation program and completed roof plan drawings, etc.

[C] Operational state of the roofing material allocation device 10 Next, the process of a designer allocating roofing materials 1 to the roof of a Japanese-style house using the roofing material allocation device 10 configured as described above will be described step by step with reference to the flow chart in Fig. 8. The control unit 12 can realize the following functions by the roofing material allocation program stored in the memory unit 30. First, the roof to which the roofing material allocation device 10 allocates roofing materials 1 is a partially modified hip roof as shown in Fig. 10.
1. In step S1, a plan view is input (see FIG. 11).

A floor plan of the building is input from the floor plan input unit 20. At this time, if the building is a two-story or higher building, the floor plan under each roof on each floor is input. When inputting, the actual size of the floor plan is also input. The input method is a scanner, CAD data, PDF data, etc. The control unit 12 sets an absolute coordinate system taking into account the actual size of the input floor plan. Here, with the origin 0 as the center, the east-west direction is the x-axis direction, the north-south direction is the y-axis direction, true east is the +x-axis direction, and true north is the +y-axis direction.
2. In step S2, the exterior wall line is input (see FIG. 11).

The exterior wall lines of the building plan are inputted into the input unit 18. This input is done by moving the mouse along the exterior wall on the plan and tracing it with the cursor, or by inputting a numerical value representing the position of the exterior wall in the absolute coordinate system and actual size data of the exterior wall line.
3. In step S3, the projection width is input (see FIG. 11).

The numerical value of the overhang, which is the distance from the exterior wall line to the tip of the roof, is inputted in the input unit 18. This overhang may be the same for all exterior wall lines in the east, west, north and south directions, or a different numerical value may be inputted for each exterior wall line in the east, west, north and south directions.
4. In step S4, east-west-north-south frame lines are created (see Figs. 11 and 12).

The control unit 12 creates a frame line showing the outer frame of the roof plan at a position protruding from the exterior wall line by the overhang and actual size data of the length of the frame line. This actual size data is calculated by the control unit 12 from the actual size data of the length of the exterior wall line in the plan view and the value of the overhang.
5. In step S5, a gradient such as the 3-inch gradient shown in FIG.

The slope of the roof is input through the input unit 18. The slope may be input after the roof shape is specified in step S6. In this case, the slope may be input for each roof surface, instead of inputting the same slope for all roof surfaces.
6. In step S6, the roof shape is specified.

The input unit 18 specifies the shape of one roof from a plurality of roof shapes, such as a hip roof, a gable roof, or a sloping roof, as shown in FIGS. 1 to 4 and stored in the roof shape storage unit 22 .
7. In step S7, the roof line is created.

The control unit 12 creates a roof line that corresponds to the identified roof shape within the area surrounded by the frame line.

(1) If the identified roof shape is a hip roof (see Figure 1)
A case where a roof line is created when the specified roof shape is a hip roof as shown in FIG. 1 will be described.

First, add eaves attributes to the east-west-north-south frame lines. Note that each frame line (eaves) is assumed to bend when it intersects.

Secondly, if adjacent frame lines (eaves) intersect at 90°, create a corner ridge at a 45° angle from one of the adjacent frame lines.

Thirdly, if adjacent frame lines (eaves) intersect at 270°, create a valley at a position diagonally 135° from one of the adjacent frame lines.

Fourth, when one corner building intersects with another corner building, the first corner building and the other corner building end at that point.

Fifth, connect the intersection of the two corner gables with the intersection of the other two corner gables to create a flat gable.

In this way, the roof line of the roof plan for a hipped roof can be created. Furthermore, with this method, roof lines can be created not only for perfect hipped roofs as shown in Figure 1, but also for deformed hipped roofs as shown in Figure 10.

(2) When the identified roof shape is a gable roof (see Figure 2)
A case where a roof line is created when the specified roof shape is a gable roof as shown in FIG. 2 will be described.

First, add eaves attributes and "ridgepole" attributes to the east-west-north-south frame lines.

Second, create a flat ridge on the roof surface between the opposing eaves.

This allows you to create the roof line for the roof plan for a gable roof.

For example, the roof on the second floor of the building shown in Figure 6 is a gable roof.

(3) When the identified roof shape is a single-pitch roof (see Figure 3)
A case where a roof line is created when the specified roof shape is a single-pitch roof as shown in FIG. 3 will be described.

First, for the north-south-east-west frame lines, add the eaves attribute, the gable attribute, or the wall edge attribute.

Secondly, determine the flow direction so that the eaves are positioned at the point with the lowest slope.

As a result, a gable roof does not have a roof line, and a roof plan can be created simply by determining the flow direction.

For example, the eaves on the first floor of the building shown in Figure 6 corresponds to a gable roof.

Even if the specified roof shape is a flat roof as shown in Figure 4, it is the same as a single-pitch roof except that the slope is 0. In this case, the position of the eaves can be determined arbitrarily.
8. In step S8, the roof surface is created.

The control unit 12 creates multiple roof surface candidates surrounded by frame lines and roof lines.

The control unit 12 sets the flow direction of the roof surface candidates.

The control unit 12 tilts the roof surface candidate in the flow direction based on the gradient, obtains actual size data for the roof line, and creates roof surfaces corresponding to the actual size data for the frame line and the actual size data for the roof line.

This completes the roof plan for the roof surfaces Y1 to Y8 to which the roof material 1 has not been allocated, as shown in FIG.
9. In step S9, the roofing material 1 is identified.

The input unit 18 specifies the roof material 1 to be assigned (e.g., a slate roof) from among the multiple types of roof material 1 stored in the roof material storage unit 24. The type of roof material 1 specified from the roof material storage unit 24, its horizontal dimension a, its vertical dimension b, and its working width d are input to the control unit 12. Note that the specification of the roof material 1 is not limited to being performed after step S8, and may be performed during steps S1 to S7.
10. In step S10, an allocation area corresponding to the roof material 1 is allocated to the roof surface (see Figures 13, 14 and 15).

(1) Rules for Allocating an Allocation Area Corresponding to a Roof Material 1 to a Roof Surface First, the rules for allocating an allocation area corresponding to a roof material 1 to a roof surface will be described.

If there are multiple roof surfaces Y1 to Y8 in a roof plan to which roof material 1 is not assigned, the areas to be assigned corresponding to roof material 1 are assigned in order to the roof surfaces located in a clockwise direction from the easternmost roof surface Y1 to roof surface Y8 (see Figures 10 and 13).

The rectangular allocation areas are arranged side by side, without overlapping, in order from the left end (allocation start point P) on the eaves side of the roof surface to the right end. This arranging process is what we mean by allocation. Note that "from the left end (allocation start point P) to the right end" is an expression used to make it easier to understand in Figure 13, and actually means from one end of the eaves to the other. Next, in the next row, the allocation areas are allocated in order from the left end on the eaves side to the right end. The allocation areas are similarly allocated in order for the next row, and this process is repeated until the allocation areas are allocated up to the top row of the roof surface (see Figure 14).

The roof material 1 is laid out so that its horizontal direction is parallel to the frame line of the roof surface (see Figure 14).

Arrange the roofing material 1 from the bottom up so that its vertical direction is parallel to the flow direction of the roof surface (see Figure 14).

The positions of each position on the roof surface, the frame line, the ridge H1, the ridge H2, the corner ridge L1, the corner ridge L2, and the corner ridge L3 are indicated by positions in the absolute coordinate system (see Figure 14).

The allocation position is indicated by the number sequentially assigned to roof material 1 and the position in the absolute coordinate system.

The roofing material 1 at each allocation position is stored with an identification number indicating whether it is a genuine or cut piece. Then, processing is performed between genuine and cut pieces. This will be described later.

(2) Method of allocation to roof surface Y1 First, the control unit 12 allocates allocation areas in order from the left end (allocation start point P) of the position (first step) closest to the eaves side of the east-facing roof surface Y1 to the right end. The left end is determined as the left end if there is an allocation area on the line of the corner ridge L1 on the left of the roof surface. The right end is determined as the right end if there is an allocation area on the line of the corner ridge L2 on the right of the roof surface (see FIG. 14). The number of allocation areas arranged in a row at the position of the frame line is determined by the number (= f/g) obtained by dividing the horizontal dimension g of the allocation area by the actual size data f of the horizontal dimension length of the frame line. The fraction of the divided number (= f/g) is treated as a cutoff, which will be explained later.

Secondly, when the allocation of the first row is completed, the control unit 12 allocates the allocation areas in order from the left end to the right end of the second row. At this time, the allocation areas are shifted horizontally by half the dimension of the rectangular allocation areas from the allocation positions of the rectangular allocation areas in the first row, and are arranged in a staggered pattern (see Figures 14 and 15). Note that for other types of roofing materials 1 (e.g., roof tiles), the allocation areas may be allocated in a lattice pattern.

The control unit 12 continues allocating in the same manner up to the top of the roof surface Y1. This determination is made when the allocation position of the allocation area reaches the position of the flat ridge H1 (see Figure 14). This completes the allocation of roof material 1 to the east roof surface Y1 shown in Figure 14. During this process, the processing of the real material and cut material (steps S21 to S41), which will be explained later, is carried out.

Next, the roof surface Y2 is allocated, and finally, the roof materials 1 are allocated to all the roof surfaces Y1 to Y8 as shown in FIG. 16, thereby completing the roof plan.
11. In step S11, a roof plan with the roof material 1 allocated is output (see FIG. 16).

The control unit 12 displays the roof plan with the roof material 1 allocated as shown in FIG. 16 on the display device 14 and prints it out using the printer 16. The control unit 12 also stores the roof plan with the roof material 1 allocated in the memory unit 30.

If there are other roofs on the same or other floors of the building, roof plan drawings for each roof are similarly prepared.
12. Processing of the True Pieces and Cut Pieces Next, processing of the true pieces and cut pieces in the layout of the roof material 1 will be described with reference to the flow chart of FIG.

In step S21, in the allocation area allocated to the roof surface Y1 above, the portion in which the real roof material 1 can be used as is is set as the "real item allocation area". In addition, the real item identification number of the real item allocated to each real item allocation area is set. For example, the allocation area filled with hatched lines in FIG. 15 can be set as the real item allocation area. At this time, the coordinate point position of the corner of each real item allocation area is calculated as the allocation position. This calculation is performed based on the coordinate position of each point on the roof surface Y1 in the absolute coordinate system. Note that when allocating the real item, the coordinate positions of the points at both ends of the top, bottom, left and right sides of the roof surface are stored, so if each real item allocation area is included in each side, each real item allocation area is considered to end at each side.

In step S22, among the allocation areas of the roof surface Y1, the areas other than the real allocation area are set as "cut allocation areas". Note that since the coordinate positions of the points at both ends of the top, bottom, left and right sides of the roof surface are stored, when each cut allocation area is included in each side, it is considered that each cut allocation area ends at that side.

In step S23, the cutting object allocation area for the first cutting object allocation is set. This setting can be from the allocation start point P or from any other point. In this explanation, the allocation start point P is set as the cutting object allocation start point, and cutting object allocation is started in order from this cutting object allocation start point toward the top. Once all cutting objects have been allocated in the upper row direction, the next cutting object allocation area to the right of the allocation start point P is allocated. This order can be determined arbitrarily.

In step S24, the vertical and horizontal dimensions of the set cutting piece allocation area are calculated. This calculation is performed from the coordinate points of the corners of the cutting piece allocation area to be allocated. Then, the cutting piece data corresponding to this cutting piece allocation area is searched and called up from the cutting piece data storage unit 28.

This step is omitted because no cutting data exists at the first position of the first roof surface Y1. However, this cutting data exists in the cutting allocation in the second cutting allocation area of that roof surface Y1 and in the allocation of subsequent roof surfaces, so a search is performed from among them.

The "cutting item allocation conditions" used in this search are, as a first condition, a cutting item whose horizontal and vertical dimensions are greater than the horizontal and vertical dimensions of the cutting item allocation area, and, as a second condition, a search is made for a cutting item whose difference between the horizontal or vertical dimensions of the cutting item allocation area and the horizontal or vertical dimensions of the cutting item is minimal.

In step S25, if there is no cutting piece whose width and length are greater than the width and length of the cutting piece allocation area, which is the first condition of the cutting piece allocation conditions, it is determined that there is no corresponding cutting piece. If there is a cutting piece that meets this first condition, the process proceeds to step S26.

In step S26, it is determined whether the corresponding cutting item can be allocated to the cutting item allocation area at its size, and if it can be allocated at that size, the process proceeds to step S27, otherwise, the process proceeds to step S29. This determination is made by comparing the vertical and horizontal dimensions of the stored cutting item with the vertical and horizontal dimensions of the cutting item allocation area.

In step S27, the cutting piece can be allocated at its original size, so the cutting piece is allocated to the set cutting piece allocation area, the cutting piece identification number of the cutting piece is set in the cutting piece allocation area, and the position of the coordinate point of the corner of the cutting piece allocation area is calculated as the allocation position.

In step S28, the cutting item identification number of the assigned cutting item is deleted from the cutting item data storage unit 28, and the process proceeds to step S40.

In step S29, since it was determined in step S26 that the cut item cannot be allocated at its current size, the cut item is cut to correspond to the cut item allocation area.

In step S30, the cut piece is assigned to the set cutting piece allocation area. Then, the cutting piece identification number of the assigned cutting piece is set to the cutting piece allocation area, and the position of the coordinate point of the corner of the cutting piece allocation area is calculated as the allocation position.

In step S31, the cutting item identification number of the assigned cutting item is deleted from the cutting item data storage unit 28, and the process proceeds to step S32.

In step S32, it is determined whether the part remaining after cutting the cut piece can be registered as a new cut piece, and if it can be registered, in step S33 a new cut piece identification number is assigned and stored in the cut piece data storage unit 28 together with its vertical and horizontal dimensions, and the process proceeds to step S40. If the remaining part cannot be registered as a cut piece, the data is discarded in step S34, and the process proceeds to step S40. Here, the "cut piece determination condition", which is the condition for determining whether the remaining part can be registered as a cut piece, is, for example, a state in which all parts except the real piece and the cut piece with inclined surfaces can be used.

In step S35, since it was determined in step S25 that there was no matching cut piece, a new piece of real material is cut in accordance with the set cut piece allocation area.

In step S36, the cut piece is assigned to the cutting piece assignment area. In this case, a newly created cutting piece identification number is set, and the position of the coordinate point of the corner of the cutting piece assignment area is calculated as the assignment position.

In step S37, it is determined whether the remaining part of the cut piece can be registered as a cut piece. This determination method is the same as the cut piece determination conditions in step S32. If the remaining part meets these cut piece determination conditions, it is registered as a cut piece in the cut piece data storage unit 28. In this case, the newly created cut piece identification number and the vertical and horizontal dimensions are registered. On the other hand, if the cut piece does not meet the cut piece determination conditions, it is discarded in step S39.

In step S40, since a cutting item has been assigned to one cutting item assignment area, it is determined whether to proceed to the next cutting item assignment area. If cutting items have been assigned to all cutting item assignment areas, proceed to step S41; if not, return to step S24.

In step S41, since real objects and cut objects have been assigned to all real object assignment areas and cut object assignment areas, the assignment of the roof surface is terminated, and the real object identification number and its assignment position and the cut object identification number and its assignment position assigned to each assignment area are stored.

In step S42, this allocation process is performed in clockwise order starting from roof surface Y1 on the easternmost side of the roof plan, so if there is a next roof surface, the process returns to step S21, and if there is no next roof surface and the allocation of all roof surfaces Y1 to Y8 is completed, the allocation process ends. At this time, the cutting material is moved around within a certain roof surface, and the cutting material that was not used on that roof surface is used for the allocation of the next roof surface. The number of roof materials 1 used in the allocation of all roof surfaces (the total number of real materials and the number of real materials used for the cutting material) is then stored.

Furthermore, the control unit 12 performs the allocation process of the true and cut pieces of the roofing material 1 for roofs on the same floor or other floors of the building, and handles the cut pieces used on each roof.

[D] Effect According to this embodiment, a roof plan with roof material 1 assigned can be obtained by inputting a floor plan of a building, inputting the exterior wall lines of the floor plan, inputting the overhang and slope, and specifying the roof shape.

In addition, if you specify one roof shape from multiple types of roof shapes, you can create a roof line on the roof surface regardless of the roof shape.

In addition, by identifying one roofing material 1 from multiple types of roofing materials 1, allocation can be performed for any roofing material.

In addition, the horizontal dimension of the allocation area of roof material 1 can be created using the horizontal dimension of roof material 1, and the vertical dimension of the allocation area can be created using the working width.

The slope of the roof shape can also be freely set.

In addition, the original material is first allocated to one roof surface, and then the cut pieces are allocated in order, so that the most suitable cut pieces can be allocated without waste, and then the cut pieces can be used without waste by routing them in the order of other roof surfaces. This allows the number of roof materials 1 used to be minimized, and costs to be reduced.

Example of changes

In the above embodiment, the roof shapes are described as hip roof, gable roof, single-pitch roof, and flat roof, but it is also possible to create a roof plan with roof material 1 allocated to a square roof, gambrel roof, half gable roof, lean-to roof, rib roof, butterfly roof, shikoro roof, and sawtooth roof by defining the rules for drawing the roof lines.

In addition, when creating a roof plan that does not have roof material 1 assigned, i.e., when drawing the roof line, if you define rules for drawing the roof line, you can create a roof plan even if the roof is a combination of a gable roof and a hip roof.

In the above embodiment, the start point P of the layout of the roof material 1 is set at the left end of the frame line, but it may be set at the right end of the frame line or at the center of the frame line.

Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and essence of the invention, and are included in the scope of the invention and its equivalents described in the claims.

10: Roof material allocation device, 12: Control unit, 14: Display device, 16: Printer, 18: Input unit, 20: Plan view input unit, 22: Roof shape memory unit, 24: Roof material memory unit, 26: Real object data memory unit, 28: Cutting object data memory unit, 30: Memory unit

Claims (4)

A roofing material allocation device for allocating roofing materials to a roof of a building,
a frame line creating means for creating a frame line indicating an outer frame of a roof plan of the roof corresponding to the plan view of the building and actual size data of the frame line;
A slope input means for inputting the slope of the roof;
A roof shape specification means for specifying a roof shape of the roof;
a roof line creating means for creating a roof line corresponding to the specified roof shape within the area surrounded by the frame line;
a roof surface creation means for creating one or more roof surface candidates surrounded by the frame line and the roof line, tilting the roof surface candidates based on the slope to obtain actual size data of the roof line, and creating a roof surface corresponding to the actual size data of the frame line and the actual size data of the roof line;
A roof material specification means for specifying a rectangular roof material to be allocated to the roof;
an allocation means for allocating an allocation area corresponding to the roof material to the roof surface from an allocation start point designated for each of the roof surfaces so that the horizontal direction of the roof material is parallel to the frame line of the roof surface and the vertical direction of the roof material is parallel to the flow direction of the roof surface;
having
The roof line creation means includes:
In the case where the specified roof shape is a hip roof,
Add an attribute indicating "eaves" to each of the east, west, north and south frame lines;
If the adjacent frame lines intersect at 90°, a corner ridge is created at a position diagonally 45° from one of the adjacent frame lines,
When the adjacent frame lines intersect at 270°, a valley is created at a position diagonally 135° from one of the adjacent frame lines;
When one corner ridge and another corner ridge intersect, the one corner ridge and the other corner ridge end at that position,
By connecting the intersection points of the two corner ridges with the intersection points of the other two corner ridges to create a flat ridge,
A roof material allocation device that creates the roof line of the hip roof. A roofing material allocation device for allocating roofing materials to a roof of a building,
a frame line creating means for creating a frame line indicating an outer frame of a roof plan of the roof corresponding to the plan view of the building and actual size data of the frame line;
A slope input means for inputting the slope of the roof;
A roof shape specification means for specifying a roof shape of the roof;
a roof line creating means for creating a roof line corresponding to the specified roof shape within the area surrounded by the frame line;
a roof surface creation means for creating one or more roof surface candidates surrounded by the frame line and the roof line, tilting the roof surface candidates based on the slope to obtain actual size data of the roof line, and creating a roof surface corresponding to the actual size data of the frame line and the actual size data of the roof line;
A roof material specification means for specifying a rectangular roof material to be allocated to the roof;
an allocation means for allocating an allocation area corresponding to the roof material to the roof surface from an allocation start point designated for each of the roof surfaces so that the horizontal direction of the roof material is parallel to the frame line of the roof surface and the vertical direction of the roof material is parallel to the flow direction of the roof surface;
having
The roof line creation means includes:
If the specified roof shape is a gable roof,
Adding attributes indicating "eaves" and "ridge" to the above-mentioned borders on the east, west, north, and south sides;
Creating a flat ridge on the roof surface between the opposing eaves.
A roof material allocation device is characterized in that the roof line of the gable roof is created by A roofing material allocation device configured by a computer that allocates roofing materials to a roof plan of a building roof,
When the frame line showing the outer frame of the roof plan corresponding to the building plan and the actual size data of the frame line are inputted into the computer, and the roof shape of the roof is specified as a hip roof,
The computer,
Add an attribute indicating "eaves" to each of the east, west, north, and south frame lines;
If the adjacent frame lines intersect at 90°, a corner ridge is created at a position diagonally 45° from one of the adjacent frame lines,
When the adjacent frame lines intersect at 270°, a valley is created at a position diagonally 135° from one of the adjacent frame lines;
When one corner ridge and another corner ridge intersect, the one corner ridge and the other corner ridge end at that position,
By connecting the intersection points of the two corner ridges with the intersection points of the other two corner ridges to create a flat ridge,
A roof material allocation device which creates a roof plan having a roof line for the hip roof. A roofing material allocation device configured by a computer that allocates roofing materials to a roof plan of a building roof,
When the frame line showing the outer frame of the roof plan corresponding to the building plan and the actual size data of the frame line are inputted into the computer, and the roof shape of the roof is specified as a gable roof,
The computer,
Adding attributes indicating "eaves" and "ridge" to the above-mentioned borders on the east, west, north, and south sides;
Creating a flat ridge on the roof surface between the opposing eaves;
A roof material allocation device is characterized in that the roof plan having the roof line of the gable roof is created by the above.