CN115311429B - Revit-based data export method and system - Google Patents
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- G06T17/10—Constructive solid geometry [CSG] using solid primitives, e.g. cylinders, cubes
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Abstract
The invention discloses a data export method based on Revit, which comprises the following steps: s1, acquiring and inheriting a data export interface IExportContext of Revit; s2, setting a function for data export based on an inherited Revit data export interface IExPortContext; s3, realizing data export of Revit based on the function; the functions for data derivation include: initializing a function, opening a view function, converting an element start function, a texture function, a triangularization function, an element conversion completion function and a completion function. The invention also discloses a data export system based on Revit, electronic equipment and a computer readable storage medium, the converted text formats of the general three-dimensional grid format and the storage attribute are related by a unique ID, the data form is easier to identify, the adaptation degree and the universality of the data export system and the data export system with other building model design software are improved, and various software can serve the same building design project according to the respective advantages and characteristics.
Description
Technical Field
The invention relates to the technical field of building information model tools, in particular to a data export method and system based on Revit.
Background
Revit is mainly used for building information modeling, and a Revit platform is a design and recording system and supports design, drawing and detail sheets required by building projects. Building information model BIM provides information about project design, scope, quantity and stage etc. that need to be used. In the Revit model, all drawings, two-dimensional views and three-dimensional views and detailed tables are information expression forms of the same basic building model database. When operating in the drawing view and the detail table view, the Revit will collect information about the building project and reconcile that information in all other manifestations of the project. The Revit parameterization modification engine can automatically coordinate modifications made at any location (in model views, drawings, detail tables, profiles, and planes).
Revit has unique advantages in building a building component model, analyzing and simulating a system structure, iteratively designing and the like, and is widely applied to the building industry. Current Revit data export has not been standardized, as currently mainstream three-dimensional design software in the engineering field has CATIAV5 from darfish corporation, france in addition to Revit from Autodesk corporation, usa. The prior art only comprises a solution for data conversion performed for exerting respective advantages of two large three-dimensional design software of CATIAV5 and Revit, so that design result data of the two software can be flexibly transferred in different engineering three-dimensional design fields, and the solution comprises the following steps:
(one) CATIAV5 data is converted into Revit data: preparation before data conversion, converting CATIAV5 data into adsk format data, and importing the adsk format data into Revit;
(II) Revit data is converted into CATIA data: preparation before design in Revit, developing three-dimensional design in Revit according to an import model, exporting Revit data into a three-dimensional DWG format, only needing to export a data model designed in Revit software, converting DWG format data into STEP format data, and importing STEP format data into CATIAV5.
The technical problems of the technical scheme include:
1. still limited to data export and conversion between specific software, and has no universality;
2. the seat of the model data is lost after format conversion, and the coordinate position information is slightly changed;
3. after collision detection of the converted model data, the converted data format has no universality and can not be embedded into the three-dimensional model design software without deviation after updating and iteration.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method and a system for exporting data based on Revit, which exports Revit data into a general three-dimensional grid data format (hereinafter, the description is abbreviated as result graph data) based on a data export interface of Revit, and exports attributes into a text format (hereinafter, the description is abbreviated as result attribute data) which is easier to recognize, wherein the general three-dimensional grid format and the text format storing the attributes are related by a unique ID.
In one aspect, the invention provides a data export method based on Revit, which comprises the following steps:
s1, acquiring and inheriting a data export interface IExport of the Revit;
s2, setting a function for data export based on an inherited data export interface IExport of the Revit; and
and S3, realizing data export of Revit based on the function.
Preferably, in the step S2, the function for data derivation includes:
(1) And the initializing function is used for starting data conversion, initializing a plurality of necessary variables, acquiring project base point related information, and setting the project base point related information into a matrix to be in the result graph data.
(2) Opening a view function, wherein the view is a Revit concept, and setting a parameter LevelOfDetail for controlling conversion accuracy in the view function;
(3) Converting an element start function, including filtering out non-graphic elements that do not need to be converted, the non-graphic elements including elevations and views;
(4) A texture function, the texture function being used to collect texture information of graphic elements, the texture information including color and/or texture maps;
(5) The triangulation function is used for collecting triangular surface information and normal line information after the triangulation of the Revit model after the triangulation of the graphic element;
(6) The element conversion completion function is used for completing the conversion of the graphic element through the element conversion completion function, obtaining result graphic data, attribute information of the element and names of the element in each result graphic data and each attribute data, wherein the names of the element are unique IDs of the graphic elements in Revit;
(7) And a completion function for indicating completion of conversion, notifying the user that the document has been converted and/or previewing the conversion result through the relevant interface.
Preferably, the project base point related information includes east or west offset x, south or north offset y, elevation z and an angle to true north; the angle to true north represents an angle about the z-axis, x, y, z being the offset from the origin.
Preferably, the value range of the parameter leveofdetail is 0-15, the larger the value of the parameter leveofdetail is, the higher the conversion accuracy is, and the parameter leveofdetail is set to 8 by default.
Preferably, the conversion accuracy of the triangularization function is controlled by a parameter leveofdetail in the open view function.
Further, the step S3 includes:
s31, initializing a plurality of necessary variables, acquiring project base point related information, and setting the project base point related information into result graph data, wherein the project base point related information comprises east or west offset (x), south or north offset (y), elevation (z) and angle to north; by converting the four values of east or west offset (x), south or north offset (y), elevation (z) and angle to north into a matrix, set into the resulting graphic data; the angle to true north represents the angle around the z-axis, x, y, z being the offset from the origin;
s32, setting parameters for controlling conversion accuracy;
s33, filtering out elements which do not need to be converted, and then starting to convert the elements;
s34, collecting the material information of the elements, wherein the material information comprises color and/or texture mapping;
s35, triangulating the elements, and collecting triangular surface information and normal line information after the triangulation of a Revit model, wherein the conversion precision of the triangulation is related to the parameters of the conversion precision;
s36, converting the element, deriving Revit data into result graph data, and deriving attributes into more easily-identified result attribute data, wherein the result graph data and the result attribute data are related by the ID of the element;
s37, repeatedly executing steps S33-S36 for all elements in the Revit document;
s38, the conversion is completed, and the user is informed that the document is converted and/or the conversion result preview is performed through the interface.
Further, the S36 includes:
s361, writing out result graph data according to the material information, the triangulated triangular surface information and the normal line information, and setting names for elements in each result graph data, wherein the names are unique IDs of the elements in Revit;
s362, acquiring attribute information of the element through a function provided by Revit, and recording the attribute information in the result attribute data, wherein each piece of result attribute data also stores the unique ID of the element.
According to a second aspect of the present invention, there is provided a Revit-based data export system comprising:
the interface inheritance module is used for acquiring and inheriting the data export interface IExport context of the Revit;
the inheritance function module is used for setting a function for data export based on an inheritance data export interface IExport of the Revit; and
and the data export module is used for realizing the data export of Revit based on the function.
A third aspect of the invention provides an electronic device comprising a processor and a memory, the memory storing a plurality of instructions, the processor being for reading the instructions and performing the method according to the first aspect.
A fourth aspect of the invention provides a computer readable storage medium storing a plurality of instructions readable by a processor and for performing the method of the first aspect.
The data export method, the system and the electronic equipment based on the Revit have the following beneficial effects:
and exporting the Revit data into a general three-dimensional grid data format, namely result graphic data, and exporting the attribute into a text format which is easier to identify, namely result attribute data, based on a data export interface of the Revit. The universal three-dimensional grid format and the text format of the storage attribute are related by the unique ID, the data form is easier to identify, the adaptation degree and the universality of the universal three-dimensional grid format and the text format of the storage attribute with other building model design software are improved, and multiple software can serve the same building design project according to the respective advantage characteristics.
Drawings
Fig. 1 is a flowchart of a data export method based on Revit according to the present invention.
Fig. 2 is a block diagram of a data export system based on Revit provided by the invention.
Fig. 3 is a schematic structural diagram of an embodiment of an electronic device according to the present invention.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The method provided by the invention can be implemented in a terminal environment, and the terminal can comprise one or more of the following components: processor, memory and display screen. Wherein the memory stores at least one instruction that is loaded and executed by the processor to implement the method described in the embodiments below.
The processor may include one or more processing cores. The processor connects various parts within the overall terminal using various interfaces and lines, performs various functions of the terminal and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory, and invoking data stored in the memory.
The Memory may include random access Memory (Random Access Memory, RAM) or Read-Only Memory (ROM). The memory may be used to store instructions, programs, code, sets of codes, or instructions.
The display screen is used for displaying a user interface of each application program.
In addition, it will be appreciated by those skilled in the art that the structure of the terminal described above is not limiting and that the terminal may include more or fewer components, or may combine certain components, or a different arrangement of components. For example, the terminal further includes components such as a radio frequency circuit, an input unit, a sensor, an audio circuit, a power supply, and the like, which are not described herein.
Example 1
Referring to fig. 1, a method for exporting data based on Revit includes: s1, acquiring and inheriting a data export interface IExport of the Revit; revit provides an interface for users to realize data export, named IExPortContext, and can realize Revit data export by only inheriting the interface and realizing own export function in related functions. S2, setting a function for data export based on an inherited data export interface IExport of the Revit; and S3, realizing data export of Revit based on the function.
Further, in S2, the function for data derivation includes: (1) initializing a function: the initialization function is named Start () in this embodiment. The initialization function is used for starting data conversion, initializing a plurality of necessary variables, acquiring project base point related information and setting the project base point related information into result graph data, wherein the project base point related information comprises east or west offset x, south or north offset y, elevation z and angle to north. The four values of east or west offset x, south or north offset y, elevation z, and angle to north are converted into a matrix and set into the resulting graphic data. The angle to true north represents the angle around the z-axis, x, y, z being the offset from the origin.
(2) Opening a view function: the open view function is named OnViewBegin in this embodiment. The view in the open view function is a Revit concept, the open view function needs to set a parameter LevelOfDetail for controlling the conversion precision, the value range of the parameter LevelOfDetail is (0-15), the larger the value of the parameter LevelOfDetail is, the higher the conversion precision is, and the parameter LevelOfDetail is set to be 8 by default. Conversion accuracy represents a fine procedure for converting the resulting data, as described in Revit by the parameters upper base center, radius, lower base center, radius, and height of the cylinder. The transformed result graph data describes the cylinder by using a triangular surface, and the higher the transformation accuracy is, the more triangular surfaces are used for describing the cylinder; vice versa, the more triangular faces that are used to describe the cylinder, the higher the conversion accuracy.
(3) Conversion element start function: the conversion element start function is named OnElementBegin in this embodiment. The conversion element start function includes filtering out non-graphical elements that do not need to be converted, such as: elevation, view, etc.
(4) Material function: in this embodiment, the material function is named as OnMaterial. The texture function is used to collect texture information of the graphic elements, including color, texture map, and the like.
(5) Trigonometric function: the triangularization function is named on polymer in this embodiment. And the trigonometric function is used for collecting trigonometric surface information and normal line information after the trigonometric of the Revit model after the trigonometric function is used for trigonometric the graphic element, and the conversion precision is controlled by a parameter LevelOfDetail in the open view function.
(6) Element conversion completion function: the element conversion completion function is named OnElementEnd in this example. And completing the element conversion function to complete the graphic element conversion. And the material information, the triangulated triangular surface information and the normal line information are collected, the result graph data can be written from the information, and a name is set for each element in the result graph data, wherein the name is the unique ID (elementId) of the graph element in Revit. The attribute information of the element is obtained through the function provided by Revit and recorded in the result attribute data, and each piece of attribute data also stores a unique ID, namely an elementId. The method can uniquely associate the graph with the attribute data, ensure that the related attribute can be found through the unique ID of the graph element, and also can find related graph information through the unique ID of the attribute.
(7) Completion function: the completion function is named Finish in this embodiment. After traversing all elements in the Revit document, entering the function, wherein the function represents conversion completion, and notifying a user that the document is converted and/or performing operations such as conversion result preview and the like through a related interface.
Further, the step S3 includes: s31, initializing a plurality of necessary variables, acquiring project base point related information, and setting the project base point related information into result graph data, wherein the project base point related information comprises east or west offset x, south or north offset y, elevation z and angle to north. The four values of east or west offset x, south or north offset y, elevation z, and angle to north are converted into a matrix and set into the resulting graphic data. The angle to north represents the angle around the z-axis, x, y, z being the offset from the origin; s32, setting parameters for controlling conversion accuracy; s33, filtering out elements which do not need to be converted, and then starting to convert the elements; s34, collecting the material information of the elements, wherein the material information comprises colors and texture maps; s35, triangulating the elements, and collecting triangular surface information and normal line information after the triangulation of a Revit model, wherein the conversion precision of the triangulation is related to the parameters of the conversion precision; s36, converting the element, deriving Revit data into result graph data, and deriving attributes into more easily-identified result attribute data, wherein the result graph data and the result attribute data are related by the ID of the element; s37, repeatedly executing steps S33-S36 for all elements in the Revit document; s38, the conversion is completed, and the user is informed that the document is converted and/or the conversion result preview is performed through the interface.
Further, the S36 includes: s361, writing out result graph data according to the material information, the triangulated triangular surface information and the normal line information, and setting names for elements in each result graph data, wherein the names are unique IDs of the elements in Revit; s362, acquiring attribute information of the element through a function provided by Revit, and recording the attribute information in the result attribute data, wherein each piece of result attribute data also stores the unique ID of the element.
The method can uniquely associate the graph with the attribute data, ensure that the related attribute can be found through the unique ID of the graph element, and also can find related graph information through the unique ID of the attribute.
Example two
Referring to fig. 2, there is provided a Revit-based data export system comprising: an interface inheritance module 101, configured to obtain and inherit a data export interface IExportContext of the Revit; an inheritance function module 102, configured to set a function for data export based on an inheritance interface IExportContext of the data export of the Revit; and a data export module 103, configured to implement data export of the Revit based on the function.
The Revit-based data export method, system and electronic equipment are used for exporting Revit data into a general three-dimensional grid data format, namely result graph data, and exporting attributes into a text format which is easier to identify, namely result attribute data, based on a Revit data export interface. The universal three-dimensional grid format and the text format of the storage attribute are related by the unique ID, the data form is easier to identify, the adaptation degree and the universality of the universal three-dimensional grid format and the text format of the storage attribute with other building model design software are improved, and multiple software can serve the same building design project according to the respective advantage characteristics.
The invention also provides a memory storing a plurality of instructions for implementing the method according to the first embodiment.
As shown in fig. 3, the present invention further provides an electronic device, including a processor 301 and a memory 302 connected to the processor 301, where the memory 302 stores a plurality of instructions, and the instructions may be loaded and executed by the processor, so that the processor can execute the method according to the first embodiment.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention. It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (9)
1. A method for exporting data based on Revit, comprising:
s1, acquiring and inheriting a data export interface IExport of the Revit;
s2, setting a function for data export based on an inherited data export interface IExport of the Revit; and
s3, realizing data export of Revit based on the function;
wherein in S2, the function for data derivation includes:
(1) The initialization function is used for starting data conversion, initializing a plurality of necessary variables, acquiring project base point related information, and setting the project base point related information into a matrix to result graph data;
(2) Opening a view function, wherein the view is a Revit concept, and setting a parameter LevelOfDetail for controlling conversion accuracy in the view function;
(3) Converting an element start function, including filtering out non-graphic elements that do not need to be converted, the non-graphic elements including elevations and views;
(4) A texture function, the texture function being used to collect texture information of graphic elements, the texture information including color and/or texture maps;
(5) The triangulation function is used for collecting triangular surface information and normal line information after the triangulation of the Revit model after the triangulation of the graphic element;
(6) The element conversion completion function is used for completing the conversion of the graphic element through the element conversion completion function, obtaining result graphic data, attribute information of the element and names of the element in each result graphic data and each attribute data, wherein the names of the element are unique IDs of the graphic elements in Revit;
(7) And a completion function for indicating completion of conversion, notifying the user that the document has been converted and/or previewing the conversion result through the relevant interface.
2. The method of claim 1, wherein the project base related information includes east or west offset x, south or north offset y, elevation z, and angle to north; the angle to true north represents the angle around the z-axis, x, y, z being the offset from the origin.
3. The method for deriving data based on Revit according to claim 1, wherein the value of the parameter LevelOfDetail ranges from 0 to 15, and the larger the value of the parameter LevelOfDetail, the higher the conversion accuracy.
4. The method of claim 1, wherein the conversion accuracy of the trigonometric function is controlled by a parameter leveofdetail in the open view function.
5. The method for exporting data based on Revit of claim 1, wherein S3 comprises:
s31, initializing a plurality of variables, acquiring project base point related information, and setting the project base point related information into result graph data, wherein the project base point related information comprises east or west offset x, south or north offset y, elevation z and an angle to north; setting the east or west offset x, the south or north offset y, the elevation z and the angle to the north into a matrix; wherein the angle to true north represents the angle around the z-axis, x, y, z being the offset from the origin;
s32, setting parameters for controlling conversion accuracy;
s33, filtering out elements which do not need to be converted, and then starting to convert the elements;
s34, collecting the material information of the elements, wherein the material information comprises color and/or texture mapping;
s35, triangulating the elements, and collecting triangular surface information and normal line information after the triangulation of a Revit model, wherein the conversion precision of the triangulation is related to the parameters of the conversion precision;
s36, converting the element, deriving Revit data into result graph data, and deriving attributes into more easily-identified result attribute data, wherein the result graph data and the result attribute data are related by the ID of the element;
s37, repeatedly executing steps S33-S36 for all elements in the Revit document;
s38, the conversion is completed, and the user is informed that the document is converted and/or the conversion result preview is performed through the interface.
6. The method for exporting data based on Revit of claim 5, wherein S36 comprises:
s361, writing out result graph data according to the material information, the triangulated triangular surface information and the normal line information, and setting names for elements in each result graph data, wherein the names are unique IDs of the elements in Revit;
s362, acquiring attribute information of the element through a function provided by Revit, and recording the attribute information in the result attribute data, wherein each piece of result attribute data also stores the unique ID of the element.
7. A Revit-based data export system for implementing a Revit-based data export method according to any one of claims 1 to 6, comprising:
an interface inheritance module (101) for acquiring and inheriting the data export interface IExport context of the Revit;
an inheritance function module (102) for setting a function for data export based on an inheritance data export interface IExportContext of the Revit; and
and the data export module (103) is used for realizing data export of Revit based on the function.
8. An electronic device comprising a processor and a memory, the memory storing a plurality of instructions, the processor configured to read the instructions and perform the method of any of claims 1-6.
9. A computer readable storage medium storing a plurality of instructions readable by a processor and for performing the method of any one of claims 1-6.
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