KR101754294B1 - Bim data transform apparatus for ununiformed beam member and the method thereof - Google Patents

Abstract

The present invention relates to a BIM data conversion apparatus and method for an arbitrary beam member capable of selecting a beam section object or automatically generating BIM data of an irregular beam member from a previously input beam section object.
If the beam section object does not exist, select the beam section type. If the beam section object exists, select the beam section object to create or select the beam section object. If the beam object is a straight line vector or a net vector, A vector object selection unit; A shape generating unit for generating a 3D beam using the selected beam section and vector object and the inputted beamforming condition, extracting the beam data structure, and exporting the beam data structure to 3D beam data; And a beam BIM data generator for generating a beam object by beam object and vector object using the beam data structure exported from the complementary beamformer and generating beam BIM data.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a BIM data conversion apparatus and a BIM data conversion apparatus,

The present invention relates to a BIM data transformation of an irregular beam member, and more particularly, to a beamforming method of generating a beam data structure by generating or selecting a beam section object, selecting a direction vector object, The present invention relates to an apparatus and method for transforming a BIM data of an irregular beam member, which can automatically generate BIM data of an irregular beam member after generating a beam object using the structure.

BIM (Building Information Modeling) refers to the information (shape information + non-shape information) generated during the entire construction project life cycle from planning, design, engineering (structure, ) And compatibility of the process and data. In particular, it enables the design and construction of cutting-edge design, super large-scale construction and eco-friendly energy-saving buildings, which are recent issues, and multi-dimensional virtual design construction (VDC) is also a part of BIM technology. In recent years, the application of BIM has been widely used in civil and plant fields in Europe and the US because it covers all construction environments as well as construction environments.

Atypical architecture has become a lot of issues in the world in recent years as the possibilities are secured due to the development of digital technology that parts that were impossible to realize due to past technical limitations. However, the construction technology for completing atypical architecture still does not have the sufficient technical ability to meet the atypical architectural design. This is because of difficulty in designing the atypical building, difficulty of data conversion for construction member production, And the limitations of technological capability in the production of materials. NURBS-based modelers, which are free to express free forms, are often used in atypical architectural designs. However, systematic limitations exist in the generation of accurate data for the construction and the production of materials or in the management of large amounts of data. Therefore, conversion to BIM data is necessary to ensure construction and economy of irregular construction. In recent years, the introduction of such BIM technology has been accelerated with 2D drawings and basic 3D models centered on complex buildings and super-sized buildings that are difficult to accurately design and construct. However, most of BIM technology research has been done for formal architecture, and information compatibility study between BIM software is limited to information compatibility between consultation BIM software except NURBS based modeler.

Therefore, it is required to be able to automatically generate the BIM data of the beam member from the inputted beam section object or the selected direction vector in order to improve the efficiency of the design and construction of the low cost type building with high-tech design and environment friendly energy.

Korean Patent No. 10-1465479 Korean Patent No. 10-1465487 Korean Patent No. 10-1607886

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a method of generating a 3D object by extracting a beam data structure, A BIM data conversion apparatus and a method thereof, which are capable of automatically generating BIM data.

According to another aspect of the present invention, there is provided a BIM data converter for an atypical beam member,

If the beam section object does not exist, select the beam section type. If the beam section object exists, select the beam section object to create or select the beam section object. If the beam object is a straight line vector or a net vector, A vector object selection unit;

A shape generating unit for generating a 3D beam using the selected beam section and vector object and the inputted beamforming condition, extracting the beam data structure, and exporting the beam data structure to 3D beam data; And

And a beam BIM data generator for generating beam objects for each beam object and vector object using the beam data structure exported from the complementary beamformer and then generating beam BIM data.

The shape condition includes the numerical information of the selected section when the type of the beam section is selected and the shape information including the node information (x, y, z coordinate values) of each side of the selected beam section object when the beam section object is selected Information and vector information includes direction vector object information in case of a straight line vector and divided crossing point node information extracted by a specified UV division number in case of a net vector.

The beam data structure includes dimension information for each cross-sectional type including vector node information of the generated beam, cross-sectional type, dimension information of the selected cross-sectional object, or polygonal cross-sectional node information.

According to another aspect of the present invention, there is provided a method for transforming a BIM data of an atypical beam member,

If the beam section object does not exist, select the section type, select the section object if the beam section object exists, and select the beam section or the net vector as the direction vector of the beam. ;

A beam forming condition receiving process for receiving beam forming conditions;

A beamforming process for generating a 3D beam using the beamforming conditions and the generated or selected beam section and beam vector information;

A beam data structure export process for extracting and exporting a beam data structure from the generated 3D beam; And

And a beam BIM data generation step of generating beam data from the beam object after each beam object is generated by loading the beam data structure of the beam data generator with the exported beam data structure.

The above-

The beam forming section generates the beam section using the beam section type included in the input beam forming condition,

The direction vector node information is extracted using the divided intersection node information of the linear vector object or the net vector,

And generating a 3D beam by moving the beam cross-section to the start point of the direction vector using the cross-sectional object information.

The beamforming condition is extracted by numerical information of the selected cross section when the type of the beam section is selected, cross-sectional type information of the selected beam section object when the beam section object is selected, and UV division number designated for the selected net vector And the divided intersection node information.

The beam data structure export process includes:

If the cross section object is a rectangle, the rectangle section dimension extraction is performed to extract the width and height of the rectangle,

If the beam section object is a polygon profile, the information of the polygonal section node is extracted,

And adding the extracted information to the beam data structure.

The beam data structure includes dimension information for each cross-sectional shape including the beam cross-sectional type, the horizontal and vertical lengths of the rectangular beam cross-sectional object or the polygonal cross-sectional peak height information of the polygonal profile, the starting node information, and the ending node information.

The beam BIM data generation process includes:

From the exported beam data structure, beam section type, beam type dimension, and vector node information are extracted.

Layer is present, determining whether the layer exists or not,

When a layer exists as a result of the presence or absence of a layer, the layer level is set immediately,

If there is no layer as a result of the presence or absence of the layer, the layer level is set after the layer is created,

The slope of the beam is calculated using the vector node information,

After the slope of the beam is calculated,

If it is determined that the beam cross-sectional type is a rectangular cross-section, a rectangular beam object is created by performing edge node information registration of the cross-section,

If it is determined as a polygon profile as a result of the determination of the cross-sectional type of the beam, conversion is performed based on the profile node center point, the polygon profile node information registration is performed to generate the profile beam object,

And a process of generating BIM data for the generated beam objects after the beam object according to the beam cross-sectional type is generated.

The present invention having the above-described configuration can automatically generate beam BIM data of a building, thereby improving the productivity and efficiency of the construction of the atypical curved surface building member. Therefore, it is possible to provide a high- It provides the effect of doubling both the possibility of design and construction and the economic efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a block diagram of a BIM data conversion apparatus 1 of an irregular beam member according to an embodiment of the present invention; Fig.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a BIM data conversion method for an amorphous beam member.
FIG. 3 is a flowchart showing a detail processing process of the preservation process (S300) in the process of FIG. 2;
4 is a diagram showing a beam modeling sample by a linear vector.
5 is a diagram showing a definition of a GH for beam data extraction by a linear vector;
FIG. 6 is a flowchart showing an additional detailed process of the beam data structure export process (S400) in the process of FIG. 2;
7 shows a beam data structure (beam modeling information structure) and a data sample.
FIG. 8 is a flowchart illustrating a detailed processing procedure of a beam BIM data generation process (S500) in the process of FIG.
9 is a diagram showing an example of an ArchiCAD-based beam generation result.
10 is a diagram showing a part of a program BIM data conversion API program;
Figure 11 shows a generic surface modeling sample with four corners.
12 is a view showing an example of beam modeling by an ArchiCAD-based beam BIM data conversion API program as extracted curved surface UV division intersection node information;
13 is a view showing an example of GH definition for extracting divided intersection point node information from curved surface UV information;

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

The embodiments according to the concept of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in this specification or the application. It is to be understood, however, that the intention is not to limit the embodiments according to the concepts of the invention to the specific forms of disclosure, and that the invention includes all modifications, equivalents and alternatives falling within the spirit and scope of the invention. Also, the word "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any aspect described herein as "exemplary " is not necessarily to be construed as preferred or advantageous over other aspects.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises ", or" having ", or the like, specify that there is a stated feature, number, step, operation, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

1 is a block diagram of a BIM data conversion apparatus 1 (hereinafter, referred to as a BIM data conversion apparatus 1) of an amorphous beam member according to an embodiment of the present invention. 1, the BIM data conversion apparatus 1 includes an input unit 10, a storage unit 20, an output unit 30, a display unit 40, a control unit 50, and a communication unit 60 .

The input unit 10 includes a direction vector object of a straight vector for transforming BIM data for an irregular beam, vector selection information including the surface information of the mesh expression vector and the UV division index of the surface information, A keyboard input port to which a keyboard for inputting data such as a shape information including rectangular information or polygon profile information including information on a cross-sectional type to be selected and a cross-sectional length information when the cross-sectional object exists, A read-write device such as a disk drive capable of recording and reading data to / from a storage device such as a USB input device, a magnetic storage device, or an optical disk storage device, or a file input device capable of receiving a file input .

The storage unit 20 is for storing information on the condition of preservation inputted through the input unit 10, a program for performing BIM data conversion, and related data for BIM data conversion, and a computer such as a hard disk or EP-ROM And a storage medium that can read and write data.

The output unit 30 is configured to output the BIM data conversion process of the beam member, and may include a printer, a plotter, and the like.

The display unit 40 may be configured as a display device or the like as an information display device that allows a process of generating BIM data of the BIM data conversion apparatus 1 of the beam member to be confirmed.

The communication unit 60 is configured to provide a communication function that enables the BIM data conversion apparatus 1 to communicate with an external communication apparatus through a communication network.

The control unit 50 includes a step and vector object selection unit 51, a shape addition unit 52, and a beam BIM data generation unit 53, which performs the BIM data conversion process of the beam member.

The bottom surface and vector object selection unit 51 selects a beam cross-sectional type when the beam cross-sectional object does not exist and extracts the horizontal and vertical lengths of the rectangular beam from the received beamforming conditions. If there is a beam cross-section object, select one of the beam cross-section objects from the rectangular or polygonal profile. Here, the polygonal profile means a polygonal cross-sectional outline of a rectangular cross-section, which is a general cross-sectional profile. Also, if the selected vector is a straight line vector, a direction vector object for beam forming is selected. Here, the direction vector corresponds to a straight line object, and a beam forming condition including the starting point, end point, and tilt angle of the beam is extracted from the selected beam direction vector. In the case of a mesh-type vector, the surface is selected to designate the number of U and V divisions, divide the surface by the number of UV divisions, and extract the divided intersection node information. The UV coordinates are the coordinates of the UV coordinate system when the surface of the 3D object is regarded as 2D (corresponding to the development or texture mapping), where it is the "U" , And that corresponding to the Y axis is "V ". The number of UV divisions designates input information as to how many U and V axes are divided. The number of UV divisions means the number of horizontal and vertical divisions of the selected 3D surface. A reasonable value should be input according to an appropriate length condition and the like.

In this case, the input preservation condition is a direction vector object in the case of a linear vector, the number of UV divisions of the surface in the case of a net-like vector, the type of the rectangular beam in the case where the beam cross-sectional object does not exist, And information of a rectangular or polygonal profile when the cross sectional object exists.

The complementary section 52 generates a beam section by using the dimension of the selected beam section among the beam forming conditions inputted from the input section 10, extracts the direction vector peak information by using the divided beam section information, And a cross section is moved to a starting point of a direction vector according to the type to generate a 3D beam.

The horizontal direction information of each beam can be defined as a single line in the Rhino system, and the horizontal beam and the inclined beam are distinguished according to the degree of inclination of the line. If the cross-sectional shape is a rectangle, the data is transferred to the rectangular beam properties of the ArchiCAD system. In the case of the polygon profile, the profile node information is registered in the profile property list in the ArchiCAD system.

In addition, when the selected cross-sectional object is a rectangle, the complementary portion 52 extracts the horizontal and vertical lengths, extracts the polygonal cross-sectional node information including the node score and the nodal coordinates in the case of the polygonal profile, extracts the beam data structure, And then exported to the beam data.

The beam BIM data generator 53 extracts the beam cross-sectional type, the dimension for each type, and the vector node information from the beam data structure, and determines whether or not there is a layer for determining whether a layer exists or not. If there is no layer as a result of the determination as to whether or not the layer exists, the layer is set and then the layer level is set. The gradient of the beam is calculated using the vector node information, After the inclination of the beam is calculated, the beam cross-sectional type is determined. If the beam cross-sectional type is judged to be a rectangular cross-sectional shape, a rectangular beam object is generated by registering the edge node information of the cross- The node coordinate transformation is performed on the basis of the profile point of the profile polygon based on the center point of the profile polygon, The profile information object is created by registering the polygon profile node information, and after the beam object according to the beam cross-sectional type is generated, the BIM data for the generated beam objects is generated. The beam data structure is a data structure for converting the beam member into BIM data, and includes beam cross-sectional type, cross-sectional dimension information, start node information, and end node node information (see FIG. The beam BIM data generator 53 may be implemented based on an API of the ArchiCAD system.

Each configuration of the control unit 50 having the above-described configuration may be produced in the form of a recording medium for storing a program, which is a combination of computer-readable codes for performing the process of the " have.

2 is a flowchart showing a process of a BIM data transformation method (hereinafter referred to as a BIM data transformation method) of an irregular beam member according to an embodiment of the present invention.

As shown in FIG. 2, the BIM data conversion method includes a step S100 of selecting a beam profile and a vector object, a beamforming condition receiving process S200, a beamforming process S300, a beam data structure export process S400, (S500).

The beam cross-section and vector object selection process S100 is a process of selecting a beam cross-section object and a vector object by the step and vector object selection unit 51. [ In this process, if the beam cross-section object does not exist, the beam cross-sectional type is selected and the horizontal and vertical lengths of the rectangular view are extracted and output. If the selected cross-sectional object exists, select one of the cross-sectional objects of the rectangular or polygonal profile. If the selected vector is a straight line vector, the direction vector object is selected. If the selected vector is a straight line vector, The number of divisions and the number of V divisions are specified, and the surface is divided by the UV division number, and the divided intersection point information is extracted.

The beamforming condition receiving process S200 is a process of receiving a direction vector object in the case of a straight line vector by the embossing unit 52, a UV dividing number of the surface in the case of a net expression vector, A cross-sectional type, horizontal and vertical length information, and rectangular or polygonal profile information when the cross sectional object exists.

In the beam forming process (S300), the beam section is created by using the dimension of the selected beam section among the beam forming conditions inputted by the beam forming section 52. In the case of the selected direction vector object or the net expression vector, The process of extracting direction vector node information by using the extracted intersection node information after the surface division is performed by the partition number, and moving the 3D plane to the vector starting point according to the type of the generated or selected beam section.

FIG. 3 is a flowchart showing a detailed processing procedure of the preservation process (S300) in the process of FIG.

As shown in FIG. 3, the beam forming process (S300) creates a beam section according to the selected cross-sectional type when the beam cross-sectional object does not exist (S310). Then, direction vector node information, which is a coordinate value of a start point and an end point of the direction vector, is extracted using the direction vector object of the selected straight line vector and the divided intersection node information generated by the number of UV divisions on the surface of the net expression vector (S320 ). If there is a beam cross-sectional object, the cross-sectional movement is performed by moving at least one of the selected beam cross-sectional object among the selected rectangular cross-sectional object or the polygon profile to the vector start point of the beam cross-section (S330) And returns to the process of FIG.

Direction vector object information in case of a straight line vector and divided crossing point node information extracted by the designated UV dividing number in case of a net vector.

FIG. 4 is a view showing a beam modeling sample by a linear vector, and FIG. 5 is a diagram showing a GH definition for beam data extraction by a linear vector. As shown in FIGS. 4 and 5, the beam modeling is performed by a linear vector, and the GH for extracting beam data by a linear vector is performed. Is defined.

Referring back to FIG. 2, the beam data structure export process (S400) is a process in which the beamformer 52 extracts a beam data structure from the generated 3D beam and then exports the beam data structure. At this time, the beam data structure includes the beam cross-sectional type, the cross-sectional dimension information, the starting node information, and the end node information. FIG. 6 is a flowchart showing an additional detailed processing procedure of the beam data structure export process (S400) in the process of FIG. 2, illustrating a beam data structure extraction process of a 3D beam generated by creation or selection of a side surface object . As shown in FIG. 6, the beam data structure export process (S400) extracts a rectangular section index if the beam section object is a rectangle (S410). If the beam section object is a polygonal profile, Extracting the polygonal section node information including the node coordinates (S420), and adding the extracted information to the beam data structure to be exported. 7 is a diagram showing a beam data structure (beam modeling information structure) and a data sample.

In the beam BIM data generation process (S500), the beam beam data generator 53 loads the beam data structures exported to generate beam objects, and then generates beam BIM data from the beam objects generated . At this time, the beam BIM data generator 53 may be implemented based on the API of ArchiCAD.

FIG. 8 is a flowchart illustrating a detailed processing procedure of the beam BIM data generation process (S500) in the process of FIG.

As shown in FIG. 8, the beam BIM data generation process (S500) extracts the beam cross-sectional type, the dimension for each type, and the vector node information from the beam data structure (S510), and determines whether there is a layer (S540). If there is no layer as a result of the determination of the presence or absence of a layer, a layer is generated (S530) Then, the layer level is set (S540). Thereafter, the slope of the beam is calculated using the vector node information (S550). After the slope of the beam is calculated, the beam cross-sectional type is determined (S560). If it is determined that the beam cross-sectional type is a rectangular cross-section (S570), corner node information registration of the cross-section (S580) is performed to generate a rectangular beam object (S590). Alternatively, if it is determined as a polygon profile as a result of the determination of the cross-sectional type of the beam (S600), conversion (S610) is performed on the basis of the center point of the profile (center point of the polygon of the column cross section) (Step S620) to create a profile beam object (step S630), and generates BIM data for the generated beam objects (step S640).

When the cross-sectional shape is rectangular, the data is transferred to the rectangular beam property of the ArchiCAD system. In the case of the polygon profile, the profile node information is registered in the profile property list in the ArchiCAD system, do. In this way, the individual beams are automatically generated as a BIM model using the starting point and ending point node information of the beam members of the imported beam data structure. At this time, the automatic BIM modeling process is implemented based on the API. FIG. 9 is a diagram showing an example of an ArchiCAD-based beam generation result, and FIG. 10 is a diagram showing a part of a beam BIM data conversion API program.

Specifically, the archiving condition information as a beam data structure exported from the GH by the above-mentioned processing is loaded into the API system of ArchiCAD and inputted as information for generating the beam converted into the BIM data, The elements are automatically modeled. At this time, the beam data structure is analyzed and the beam object setting is automatically performed on the ArchiCAD. The beam object is automatically modeled and the BIM data is generated.

In addition, the present invention can extract and generate the network line of the beam by the curved UV information from the NURBS curved surface. This is generally a range that can be applied to a curved roof as well as a beam element, and extracts each divided coordinate point in the UV direction of a specified curved surface and automatically generates a plurality of beams based on each intersection point. 12 is a view showing an example of beam modeling by the ArchiCAD-based beam BIM data conversion API program as extracted curved surface UV division intersection node information, and FIG. 12 is a view showing an example of beam modeling by the ArchiCAD- 13 is a diagram showing an example of GH definition for extracting divided intersection point node information from curved surface UV information.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various modifications may be made without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: BIM data conversion device

Claims (9)

If the beam section object does not exist, select the beam section type. If the beam section object exists, select the beam section object to create or select the beam section object. If the beam object is a straight line vector or a net vector, A vector object selection unit;
A shape generating unit for generating a 3D beam using the selected beam section and vector object and the inputted beamforming condition, extracting the beam data structure, and exporting the beam data structure to 3D beam data; And
And a beam BIM data generator for generating a beam object by the beam cross section and the vector object using the beam data structure exported from the complementary shape part, and then generating beam BIM data.
The method according to claim 1,
When the type of beam cross section is selected, numerical information about the selected cross section,
If the beam section object is selected, the shape information including the node information (x, y, z coordinate values) of each side of the selected beam section object,
Wherein the vector information includes direction vector object information in the case of a straight line vector and divided intersection node information extracted by the specified number of UV divisions in case of a net vector.
The data structure of claim 2,
A dimension information of the selected beam section object, or dimension information of the cross section type including the information of the vector node of the generated beam, the section type, the dimension information of the selected beam section object, or the information of the polygonal section node point.
If the beam section object does not exist, select the section type, select the section object if the beam section object exists, and select the beam section or the net vector as the direction vector of the beam. ;
A beam forming condition receiving process for receiving beam forming conditions;
A beamforming process for generating a 3D beam using the beamforming conditions and the generated or selected beam section and beam vector information;
A beam data structure export process for extracting and exporting a beam data structure from the generated 3D beam; And
A step of generating BIM data from the generated beam object by loading the beam data structure of the beam BIM data generator with each beam object, and generating BIM data from the generated beam object.
[5] The method of claim 4,
The beam forming section generates the beam section using the beam section type included in the input beam forming condition,
The direction vector node information is extracted using the divided intersection node information of the linear vector object or the net vector,
A method of transforming a BIM data of a beam member that generates a 3D beam by moving a beam section to a starting point of a direction vector using the cross-sectional object information.
[5] The method of claim 4,
If the beam cross section type is selected, the numerical information of the selected cross section, the cross sectional type information of the selected beam cross section object when the beam cross section object is selected, and the split cross point node information extracted by the UV division number specified for the selected net vector And converting the BIM data into a BIM data.
The method of claim 4,
If the cross section object is a rectangle, the rectangle section dimension extraction is performed to extract the width and height of the rectangle,
If the beam section object is a polygon profile, the information of the polygonal section node is extracted,
And adding the extracted information to the beam data structure.
The data structure of claim 7,
A method of transforming a BIM data of a beam member including beam cross-sectional type, cross-sectional dimension information including cross-sectional height information of a rectangular beam cross-sectional object or polygonal cross-sectional peak information of a polygonal profile, start node information, and end node information.
The method as claimed in claim 4,
From the exported beam data structure, beam section type, beam type dimension, and vector node information are extracted.
Layer is present, determining whether the layer exists or not,
When a layer exists as a result of the presence or absence of a layer, the layer level is set immediately,
If there is no layer as a result of the presence or absence of the layer, the layer level is set after the layer is created,
The slope of the beam is calculated using the vector node information,
After the slope of the beam is calculated,
If it is determined that the beam cross-sectional type is a rectangular cross-section, a rectangular beam object is created by performing edge node information registration of the cross-section,
If it is determined as a polygon profile as a result of the determination of the cross-sectional type of the beam, conversion is performed based on the profile node center point, the polygon profile node information registration is performed to generate the profile beam object,
A method of transforming a BIM data of a beam member that generates BIM data for generated beam objects after the beam object is generated according to the beam section type.

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