CN116484455A

CN116484455A - Forward direction design method and system based on BIM

Info

Publication number: CN116484455A
Application number: CN202310186905.1A
Authority: CN
Inventors: 赵璨; 赵中宇; 骆思羽; 徐静波
Original assignee: China Construction Design And Research Institute Co ltd
Current assignee: China Construction Design And Research Institute Co ltd
Priority date: 2023-02-22
Filing date: 2023-02-22
Publication date: 2023-07-25
Anticipated expiration: 2043-02-22
Also published as: CN116484455B

Abstract

The invention provides a forward direction design method and a forward direction design system based on BIM, comprising the following steps: acquiring a three-dimensional tag corresponding to current BIM three-dimensional data processed by a user, determining corresponding history export data according to the three-dimensional tag, and generating a history export table; taking the automatic export information or the manual export information of the corresponding time as target export information, and determining historical BIM three-dimensional data of the time corresponding to the target export information; comparing the current BIM three-dimensional data with the historical BIM three-dimensional data to generate a new two-dimensional derived tangent plane; fusing all historical two-dimensional derived tangent planes in the target derived information with the new two-dimensional derived tangent planes, and displaying all the two-dimensional derived tangent planes according to different display strategies to generate a tangent plane derived recommendation table of forward design; sequencing all two-dimensional derived cuts in a cut surface derived generation table to obtain a cut surface sequence, and cutting current BIM three-dimensional data according to the cut surface sequence to obtain corresponding BIM two-dimensional information.

Description

Forward direction design method and system based on BIM

Technical Field

The invention relates to the technical field of data processing, in particular to a forward design method and system based on BIM.

Background

The building information model (Building Information Modeling) is a new tool for architecture, engineering and civil engineering, can build a virtual three-dimensional building engineering model, and provides a complete building engineering information base consistent with actual conditions for the model by utilizing a digitizing technology. The information base contains not only geometric information, professional attributes and state information describing building elements, but also state information of non-element objects (such as space, sports behavior).

The idea of BIM forward design is to build a three-dimensional model and then to make a construction drawing, which is actually a change of the design method. Different from the traditional two-dimensional design, the forward design is not carried out three-dimensional turnover according to the two-dimensional drawing, but is directly designed on three-dimensional modeling software, the two-dimensional drawing is directly generated by the three-dimensional model, the quality of the design scheme is obviously better, and meanwhile, the efficiency is further improved.

However, in the prior art, after a worker builds a BIM three-dimensional model, the worker cannot quickly determine the derived section in batches according to the historical operation and the requirement of the worker, and the efficiency of deriving the required two-dimensional drawing is low.

Disclosure of Invention

The embodiment of the invention provides a forward direction design method and a forward direction design system based on BIM, which can enable a worker to quickly determine a two-dimensional export section in batches according to the historical operation and the requirement after constructing a BIM three-dimensional model, export a required two-dimensional drawing and record corresponding behaviors, so that the export section can be quickly, automatically or semi-automatically determined when the BIM two-dimensional information is exported next time, and the efficiency is higher.

In a first aspect of an embodiment of the present invention, a forward design method based on BIM is provided, including:

acquiring a three-dimensional tag corresponding to current BIM three-dimensional data processed by a user, determining corresponding history export data according to the three-dimensional tag, and generating a history export table, wherein the history export table comprises automatic export information or manual export information at different moments;

if the user selects the automatic export information or the manual export information at any time in the history export table, the automatic export information or the manual export information at the corresponding time is used as target export information, and the history BIM three-dimensional data at the time corresponding to the target export information is determined;

comparing the current BIM three-dimensional data with the historical BIM three-dimensional data to obtain difference three-dimensional data, and generating a new two-dimensional derived tangent plane according to the coordinates of the difference three-dimensional data;

fusing all historical two-dimensional derived tangent planes in the target derived information with the new two-dimensional derived tangent planes, and displaying all the two-dimensional derived tangent planes according to different display strategies to generate a tangent plane derived recommendation table of forward design;

modifying a section guiding recommendation table according to section modification data input by a user to obtain a section guiding generation table, sequencing all two-dimensional guiding sections in the section guiding generation table to obtain a section sequence, cutting current BIM three-dimensional data according to the section sequence to obtain corresponding BIM two-dimensional information, wherein each BIM two-dimensional information corresponds to one two-dimensional guiding section.

Optionally, in one possible implementation manner of the first aspect, the obtaining a three-dimensional tag corresponding to the current BIM three-dimensional data processed by the user, determining corresponding history export data according to the three-dimensional tag, and generating a history export table, where the history export table includes automatic export information or manual export information at different moments, includes:

acquiring a three-dimensional label of a file corresponding to the current BIM three-dimensional data processed by a user, traversing a database based on the three-dimensional label to obtain corresponding history derived data, wherein each history derived data has a corresponding three-dimensional label;

extracting automatic export information or manual export information of the historical export data at different moments, wherein the automatic export information is to automatically generate a two-dimensional export section at the corresponding moment, and the manual export section is to manually generate the two-dimensional export section at the corresponding moment;

and sorting according to the time corresponding to the automatic export information or the manual export information respectively to generate a history export table.

Optionally, in one possible implementation manner of the first aspect, if the user selects the automatic derived information or the manual derived information at any time in the history derived table, the determining the historical BIM three-dimensional data at the time corresponding to the target derived information includes:

If the user selects the automatic export information or the manual export information at any time in the history export table, the automatic export information or the manual export information at the corresponding time is used as target export information;

determining historical BIM three-dimensional data at the moment corresponding to the target derived information, and counting all historical equipment elements in the historical BIM three-dimensional data, coordinate position information of each historical equipment element and historical parameter information corresponding to each historical equipment element;

and counting all the historical equipment elements, the historical coordinate position information and the historical parameter information according to a preset counting rule, and determining the historical BIM three-dimensional data at the corresponding moment.

Optionally, in a possible implementation manner of the first aspect, the comparing the current BIM three-dimensional data with the historical BIM three-dimensional data to obtain difference three-dimensional data, and generating a new two-dimensional derived tangent plane according to coordinates of the difference three-dimensional data includes:

counting all current equipment elements in the current BIM three-dimensional data, coordinate position information of each current equipment element and current parameter information corresponding to each current equipment element;

counting all current equipment elements, current coordinate position information and current parameter information according to a preset counting rule, and determining current BIM three-dimensional data at corresponding moments;

Extracting current coordinate position information corresponding to each current equipment element in the current BIM three-dimensional data in sequence, and comparing the current coordinate position information with historical coordinate position information in the historical BIM three-dimensional data;

if the historical coordinate position information corresponding to the current coordinate position information does not exist, generating a new two-dimensional derived tangent plane according to the current coordinate position information;

if it is judged that the historical coordinate position information corresponding to the current coordinate position information exists and the current parameter information does not correspond to the historical parameter information, a new two-dimensional derived tangent plane is generated according to the current coordinate position information.

Optionally, in a possible implementation manner of the first aspect, the generating a new two-dimensional derived slice according to the current coordinate position information includes:

taking the most various tangent plane states of all two-dimensional derived tangent planes in the historical derived data as target tangent plane states, wherein the tangent plane states at least comprise an X-axis perpendicular tangent plane state, a Y-axis perpendicular tangent plane state and a Z-axis perpendicular tangent plane state;

generating a two-dimensional derived section of an initial specification parallel to a target section state, determining a target coordinate set according to the target section state, and screening and calculating coordinate information in historical equipment elements according to the target coordinate set to obtain a corresponding derived section specification;

Adjusting the two-dimensional export tangent plane of the initial specification according to the export tangent plane specification to obtain an adjusted two-dimensional export tangent plane, and determining the center point of the two-dimensional export tangent plane;

and setting the center point of the two-dimensional derived tangent plane in a corresponding manner with corresponding current coordinate position information, and generating a new two-dimensional derived tangent plane corresponding to the current equipment element.

Optionally, in one possible implementation manner of the first aspect, the generating the two-dimensional derived section of the initial specification parallel to the target section state, determining a target coordinate set according to the target section state, and screening and calculating coordinate information in the historical equipment element according to the target coordinate set to obtain a corresponding derived section specification includes:

if the object tangent plane state is an X-axis vertical tangent plane state, the object coordinate set comprises a Y-axis coordinate and a Z-axis coordinate, if the object tangent plane state is a Y-axis vertical tangent plane state, the object coordinate set comprises an X-axis coordinate and a Z-axis coordinate, and if the object tangent plane state is a Z-axis vertical tangent plane state, the object coordinate set comprises an X-axis coordinate and a Y-axis coordinate;

screening extreme value coordinate sets corresponding to the target coordinate sets in all historical equipment elements, calculating according to the extreme value coordinate sets to obtain the section side lengths in different directions, and obtaining corresponding offset coefficients according to the section side lengths in different directions;

And calculating the tangent plane side length again based on the offset coefficient to obtain the final tangent plane side length, and taking the final tangent plane side length as the corresponding derived tangent plane specification.

Optionally, in one possible implementation manner of the first aspect, the fusing all the historical two-dimensional derived cuts in the target derived information with the new two-dimensional derived cuts, and displaying all the two-dimensional derived cuts according to different display policies to generate the forward-designed cut derived recommendation table includes:

determining the center point of the new two-dimensional derived tangent plane and the center points of all historical two-dimensional derived tangent planes in the target derived information;

sequencing all new two-dimensional derived cuts by analyzing the corresponding center points according to a preset arrangement rule to obtain a new cut surface sequence, and sequencing all historical two-dimensional derived cuts by analyzing the corresponding center points according to the preset arrangement rule to obtain a historical cut surface sequence;

and sequencing the sequence of the new section before and the sequence of the historical section after to generate a section export recommendation table, displaying the new two-dimensional export section according to a first preset form, and displaying the historical two-dimensional export section according to a second preset form.

Optionally, in one possible implementation manner of the first aspect, the modifying the tangent plane derivation recommendation table according to the tangent plane modification data input by the user to obtain a tangent plane derivation generation table, sorting all two-dimensional derivation tangent planes in the tangent plane derivation generation table to obtain a tangent plane sequence, cutting current BIM three-dimensional data according to the tangent plane sequence to obtain corresponding BIM two-dimensional information, where each BIM two-dimensional information corresponds to one two-dimensional derivation tangent plane, and including:

Deleting new two-dimensional derived cuts and/or historical two-dimensional derived cuts in a cut derived recommendation table according to the cut modification data, wherein the cut modification data comprises deletion data of the two-dimensional derived cuts;

adding a new two-dimensional derived tangent plane in a tangent plane derived recommendation table according to the tangent plane modification data, wherein the added new two-dimensional derived tangent plane comprises a corresponding center point;

sequencing all two-dimensional derived sections according to a preset arrangement rule to obtain a section sequence, and cutting current BIM three-dimensional data according to the section sequence to obtain corresponding BIM two-dimensional information;

and extracting to obtain the generation moment of BIM two-dimensional information, and obtaining and storing automatic derived information according to the extracted moment and the section sequence.

Optionally, in a possible implementation manner of the first aspect, the historical coordinate location information of the historical device element, the current coordinate location information of the current device element is generated by:

calculating according to the maximum X-axis coordinate information, the minimum X-axis coordinate information, the maximum Y-axis coordinate information, the minimum Y-axis coordinate information, the maximum Z-axis coordinate information and the minimum Z-axis coordinate information in each historical equipment element to obtain the central point coordinate of the history of each historical equipment element;

And calculating according to the maximum X-axis coordinate information, the minimum X-axis coordinate information, the maximum Y-axis coordinate information, the minimum Y-axis coordinate information, the maximum Z-axis coordinate information and the minimum Z-axis coordinate information in each current equipment element to obtain the current center point coordinate of each current equipment element.

In a second aspect of an embodiment of the present invention, there is provided a forward design system based on BIM, including:

the acquisition module is used for acquiring a three-dimensional tag corresponding to the current BIM three-dimensional data processed by a user, determining corresponding history export data according to the three-dimensional tag and generating a history export table, wherein the history export table comprises automatic export information or manual export information at different moments;

the determining module is used for determining historical BIM three-dimensional data at the moment corresponding to the target export information by taking the automatic export information or the manual export information at the corresponding moment as the target export information if the user selects the automatic export information or the manual export information at any moment in the historical export table;

the comparison module is used for comparing the current BIM three-dimensional data with the historical BIM three-dimensional data to obtain difference three-dimensional data, and generating a new two-dimensional derived tangent plane according to the coordinates of the difference three-dimensional data;

The fusion module is used for fusing all the historical two-dimensional derived tangent planes in the target derived information with the new two-dimensional derived tangent planes, and displaying and generating a tangent plane derived recommendation table of forward design for all the two-dimensional derived tangent planes according to different display strategies;

the modification module is used for modifying the section guiding recommendation table according to section modification data input by a user to obtain a section guiding generation table, sequencing all two-dimensional guiding sections in the section guiding generation table to obtain a section sequence, cutting current BIM three-dimensional data according to the section sequence to obtain corresponding BIM two-dimensional information, and each BIM two-dimensional information corresponds to one two-dimensional guiding section.

Optionally, in one possible implementation manner of the second aspect,

in a third aspect of embodiments of the present invention, there is provided a storage medium having stored therein a computer program for implementing the method of the first aspect and the various possible designs of the first aspect when the computer program is executed by a processor.

The forward direction design method and the forward direction design system based on the BIM can acquire corresponding historical export data and determine corresponding target export information when a user processes current BIM three-dimensional data and needs to export BIM two-dimensional information. The method can compare the historical BIM three-dimensional data corresponding to the target derived information with the current BIM three-dimensional data and obtain corresponding difference three-dimensional data, and can generate a new two-dimensional derived tangent plane and cut the current BIM three-dimensional data according to the difference three-dimensional data. The method and the device can automatically and efficiently determine the corresponding section according to the historical data and the differential data when processing the current BIM three-dimensional data, improve the determination efficiency of the section and reduce the manual operation steps.

When the difference three-dimensional data is obtained, corresponding information is counted according to a preset counting rule, and the current BIM three-dimensional data and the historical BIM three-dimensional data are obtained, so that the ordering modes of the current BIM three-dimensional data and the historical BIM three-dimensional data are similar, the comparison efficiency of the current BIM three-dimensional data and the historical BIM three-dimensional data is improved, and the data processing capacity is reduced. When the current BIM three-dimensional data and the historical BIM three-dimensional data are compared, the invention can compare a plurality of dimensions such as coordinate positions, parameter information and the like, so that the tangent planes corresponding to the same equipment elements can be determined quickly, and the tangent planes corresponding to different equipment elements can also be determined quickly, thereby improving the processing efficiency of the technical scheme provided by the invention.

When the two-dimensional derived section is generated, the target section state is determined according to the states of all sections in the historical BIM three-dimensional data, so that the determined target section state can maximally meet the requirements of users, the coordinate information in the historical equipment elements can be screened and calculated to obtain corresponding derived section specifications, the derived section specifications corresponding to different BIM models are differentiated and customized, weights can be continuously trained according to feedback and using behaviors of the users, and the sizes of the two-dimensional derived sections generated by different users are more in accordance with the requirements of the users.

Drawings

FIG. 1 is a flow chart of a BI M-based forward design method;

FIG. 2 is a block diagram of a BIM based forward design system.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein.

It should be understood that, in various embodiments of the present invention, the sequence number of each process does not mean that the execution sequence of each process should be determined by its functions and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

It should be understood that in the present invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

It should be understood that in the present invention, "plurality" means two or more. "and/or" is merely an association relationship describing an association object, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising A, B and C", "comprising A, B, C" means that all three of A, B, C comprise, "comprising A, B or C" means that one of the three comprises A, B, C, and "comprising A, B and/or C" means that any 1 or any 2 or 3 of the three comprises A, B, C.

It should be understood that in the present invention, "B corresponding to a", "a corresponding to B", or "B corresponding to a" means that B is associated with a, from which B can be determined. Determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information. The matching of A and B is that the similarity of A and B is larger than or equal to a preset threshold value.

As used herein, "if" may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to detection" depending on the context.

The technical scheme of the invention is described in detail below by specific examples. The following embodiments may be combined with each other, and some embodiments may not be repeated for the same or similar concepts or processes.

The invention provides a forward design method based on BIM, as shown in a flow chart of FIG. 1, comprising the following steps:

step S110, a three-dimensional label corresponding to the current BIM three-dimensional data processed by a user is obtained, corresponding history export data is determined according to the three-dimensional label, and a history export table is generated, wherein the history export table comprises automatic export information or manual export information at different moments. In the technical scheme provided by the invention, the server can acquire the three-dimensional label corresponding to the processed current BIM three-dimensional data, the current BIM three-dimensional data can be provided with a corresponding storage file, such as a CAD three-dimensional data graph, a solidworks three-dimensional data graph and the like, and different BIM three-dimensional data are provided with different three-dimensional labels. The invention can carry out statistics on the derived data of all moments of the corresponding BIM three-dimensional data to generate a corresponding history derived table.

In one possible implementation manner, the step S110 includes:

step 1101, obtaining a three-dimensional tag of a file corresponding to the current BIM three-dimensional data processed by the user, traversing the database based on the three-dimensional tag to obtain corresponding history derived data, wherein each history derived data has a corresponding three-dimensional tag. The three-dimensional software in the invention can configure the corresponding three-dimensional label when any BIM three-dimensional data is stored, and the three-dimensional label can not be changed when a user modifies the corresponding BIM three-dimensional data.

Step S1102, extracting automatic derived information or manual derived information of the historical derived data at different time instants, where the automatic derived information is to automatically generate a two-dimensional derived tangent plane at a corresponding time instant, and the manual setting of the two-dimensional derived tangent plane is to manually generate the two-dimensional derived tangent plane at the corresponding time instant. The invention extracts the automatic export information or the manual export information of the history export data at different moments. For example, when building BIM three-dimensional data for the first time, the user may manually select several export cuts suitable for the current scene, where the selected export cuts are two-dimensional export cuts generated manually. For another example, after the user modifies a certain BIM three-dimensional data, the two-dimensional derived tangent plane is automatically derived according to the two-dimensional derived tangent plane manually derived previously, so that the corresponding two-dimensional derived tangent plane is not required to be selected any more, and the two-dimensional derived tangent plane is automatically generated directly according to the tangent plane information of the two-dimensional derived tangent plane manually generated previously. When the two-dimensional derived tangent plane is automatically generated, the two-dimensional derived tangent plane can be generated in a preset mode, for example, one derived tangent plane is generated at each preset distance of the Z axis, and the preset distance can be recorded by a worker or automatically saved by a system.

Step S1103, sorting according to the time points corresponding to the automatic export information or the manual export information, respectively, to generate a history export table. The invention can sort according to the time corresponding to the automatic derived information or the manual derived information, the time can be sorted from near to far, and the derived information at the time near to the current can be arranged at the front part of the history derived table.

Step S120, if the user selects the automatic export information or the manual export information at any time in the history export table, the automatic export information or the manual export information at the corresponding time is used as the target export information, and the history BIM three-dimensional data at the time corresponding to the target export information is determined. The invention can display the history export table through the display device, the user can select the automatic export information or the manual export information at any moment in the history export table, the invention takes the corresponding automatic export information or the manual export information as the target export information, namely, corresponding history BIM three-dimensional data is determined according to the moment corresponding to the corresponding target export information, at the moment, the determined history BIM three-dimensional data can be understood to be the history BIM three-dimensional data closest to the tangent plane corresponding to the current BIM three-dimensional data, and the BIM three-dimensional graph formed by the BIM three-dimensional data can be cut through the tangent plane to obtain the corresponding cross-sectional view and two-dimensional engineering graph.

In one possible implementation manner, the step S120 includes:

if the user selects the automatic export information or the manual export information at any time in the history export table, the automatic export information or the manual export information at the corresponding time is used as the target export information. The invention displays a history export table, wherein the history export table can comprise a plurality of groups of cells, each group of cells can respectively correspond to a moment column, a slice information column and a slice image column, each group of cells corresponds to one piece of automatic export information or manual export information, the moment column is used for filling the moment corresponding to the corresponding automatic export information or manual export information, the slice information column can correspond to the center point of a corresponding slice, the center points of the corresponding slice can be a plurality of, the slice image column can correspond to the shape of the corresponding slice reduced by a preset multiple, and the slice image column can also be a plurality of. It should be noted that, the arrangement order of the center points and the arrangement order of the corresponding shapes are synchronous, that is, the center points and the arrangement order of the same order correspond to the same derived slice.

And determining historical BIM three-dimensional data at the moment corresponding to the target derived information, and counting all historical equipment elements in the historical BIM three-dimensional data, coordinate position information of each historical equipment element and historical parameter information corresponding to each historical equipment element. The invention can determine the historical BIM three-dimensional data of the moment corresponding to the target derived information, and determine all the historical equipment elements in the historical BIM three-dimensional data, wherein the BIM three-dimensional data can be provided with a plurality of equipment elements, such as a cross beam, a bolt and the like, each historical equipment element can be correspondingly provided with corresponding coordinate position information under corresponding three-dimensional coordinates, and the historical parameter information corresponding to each historical equipment element can comprise length information, width information, height information, angle information and the like.

And counting all the historical equipment elements, the historical coordinate position information and the historical parameter information according to a preset counting rule, and determining the historical BIM three-dimensional data at the corresponding moment. After the corresponding historical BIM three-dimensional data is determined, the historical equipment elements, the historical coordinate position information and the historical parameter information of the corresponding historical BIM three-dimensional data are counted, and the characteristics of the corresponding historical BIM three-dimensional data can be reflected through the equipment elements, the coordinate position information and the parameter information. The preset statistics rule may be preset, for example, the present invention may count the coordinates of the center point of each historical equipment element, and count all the historical equipment elements according to the first sorting priority of the X-axis coordinates, the second sorting priority of the Y-axis coordinates, and the third sorting priority of the Z-axis coordinates, where the sorting may be descending sorting, that is, if the X-axis coordinates of two historical equipment elements are 10 and 9, respectively, the present invention may sort the historical equipment element with the X-axis coordinates of 10 before the historical equipment element with the X-axis coordinates of 9. If the X-axis coordinates of the two historical equipment elements are 10, 10 and Y-axis coordinates of the two historical equipment elements are 10 and 9 respectively, the X-axis coordinates of the two historical equipment elements are the same at the moment, the corresponding Y-axis coordinates are compared, the Y-axis coordinates of the two historical equipment elements are 10 and 10 at the moment, and the historical equipment elements with the X-axis coordinates of the two historical equipment elements and the Y-axis coordinates of the two historical equipment elements are 10 and 9 at the moment are arranged in front of the historical equipment elements with the X-axis coordinates of the two historical equipment elements.

And S130, comparing the current BIM three-dimensional data with the historical BIM three-dimensional data to obtain difference three-dimensional data, and generating a new two-dimensional derived tangent plane according to the coordinates of the difference three-dimensional data. The invention compares the current BIM three-dimensional data with the historical BIM three-dimensional data to obtain corresponding difference three-dimensional data, the difference three-dimensional data can reflect the difference between the current BIM model and the historical BIM model, and the difference three-dimensional data can be regarded as a series of adjustment operations currently performed on the BIM model by a user, so that the invention can generate a new two-dimensional derived tangent plane according to the coordinates of the difference three-dimensional data, and mainly generates a corresponding new tangent plane aiming at the modified part, so that the modified part can be prominently displayed, and the user can timely master the two-dimensional engineering structure of the user.

In one possible implementation manner, the step S130 includes:

and counting all current equipment elements in the current BIM three-dimensional data, coordinate position information of each current equipment element and current parameter information corresponding to each current equipment element. The method can count the equipment elements and related information of the current BIM three-dimensional data to obtain corresponding information in the current BIM three-dimensional data.

And counting all the current equipment elements, the current coordinate position information and the current parameter information according to a preset counting rule, and determining the current BIM three-dimensional data at the corresponding moment. The invention respectively carries out statistics on the same current equipment elements, coordinate position information and current parameter information according to the preset statistical rule, the statistical mode corresponds to the related information of the statistical historical equipment elements, and the invention can obtain the current BIM three-dimensional data with element arrangement relation at the moment without repeated description.

And sequentially extracting current coordinate position information corresponding to each current equipment element in the current BIM three-dimensional data, and comparing the current coordinate position information with historical coordinate position information in the historical BIM three-dimensional data. Through the mode, the present coordinate position information corresponding to the present equipment element is compared with the historical coordinate position information, and whether the corresponding equipment element is the element shared by the present BIM three-dimensional data and the historical BIM three-dimensional data can be judged through the mode.

If it is determined that there is no historical coordinate position information corresponding to the current coordinate position information, a new two-dimensional derived tangent plane is generated according to the current coordinate position information. If there is no historical coordinate position information corresponding to the current coordinate position information, it can be considered that the corresponding current equipment element is a new equipment element compared with the historical BIM three-dimensional data, so that the invention can generate a new two-dimensional derived tangent plane according to the coordinate position information of the current equipment element.

If it is judged that the historical coordinate position information corresponding to the current coordinate position information exists and the current parameter information does not correspond to the historical parameter information, a new two-dimensional derived tangent plane is generated according to the current coordinate position information. If the current parameter information and the historical parameter information are the same, the user may modify the corresponding current equipment element, and the corresponding current equipment element is considered to be a new equipment element compared with the historical BIM three-dimensional data, so that the invention can generate a new two-dimensional derived tangent plane according to the coordinate position information of the current equipment element.

In one possible implementation manner, the method for generating a new two-dimensional derived tangent plane according to the current coordinate position information includes:

and taking the most various tangent plane states of all the two-dimensional derived tangent planes in the historical derived data as target tangent plane states, wherein the tangent plane states at least comprise an X-axis vertical tangent plane state, a Y-axis vertical tangent plane state and a Z-axis vertical tangent plane state. The invention takes the most various tangent plane states of the two-dimensional derived tangent plane as the target tangent plane states, and the most various tangent plane states of the two-dimensional derived tangent plane can be taken as the target tangent plane states because the application scenes corresponding to different BIM models are different, such as stair models, the tangent plane at the moment can be more Z-axis vertical tangent plane states, such as a transversely paved pipeline model, and the moment can be more X-axis or Y-axis vertical tangent plane states.

Generating a two-dimensional derived section of an initial specification parallel to the target section state, determining a target coordinate set according to the target section state, and screening and calculating coordinate information in historical equipment elements according to the target coordinate set to obtain a corresponding derived section specification. According to the method, the two-dimensional derived tangent plane of the initial specification which is parallel to the target tangent plane state is initially generated, the size and the center point of the two-dimensional derived tangent plane can be preset, for example, the target tangent plane state is an X-axis perpendicular tangent plane state, and the generated two-dimensional derived tangent plane can be perpendicular to the X-axis. The invention determines the derived section specification according to the target coordinate set, including the length specification, the width specification and the like of the derived section. Since the dimensions of different BIM models may be different, the invention generates corresponding derived section specifications for BIM models of different specifications and dimensions.

The technical scheme provided by the invention, in one possible implementation manner, comprises the following steps:

if the object tangent plane state is the X-axis perpendicular tangent plane state, the object coordinate set comprises Y-axis coordinates and Z-axis coordinates, if the object tangent plane state is the Y-axis perpendicular tangent plane state, the object coordinate set comprises X-axis coordinates and Z-axis coordinates, and if the object tangent plane state is the Z-axis perpendicular tangent plane state, the object coordinate set comprises X-axis coordinates and Y-axis coordinates. According to the method, corresponding element requirements in different target coordinate sets are generated according to different target tangent plane states, when the X-axis vertical plane is required to be sectioned, the corresponding BIM model is required to be cut according to the X-axis vertical tangent plane, the position of the tangent plane is required to be determined according to the X-axis value of corresponding equipment elements, and the specification of the corresponding tangent plane is required to be determined according to the Y-axis coordinate and the Z-axis coordinate.

And screening the extremum coordinate sets corresponding to the target coordinate sets in all the current equipment elements, calculating according to the extremum coordinate sets to obtain the section side lengths in different directions, and obtaining corresponding offset coefficients according to the section side lengths in different directions. The invention can obtain the extreme value coordinate set corresponding to the target coordinate set in the current equipment element, wherein the extreme value coordinate set comprises different combination modes according to different vertical section states and possibly comprises a plurality of X-axis maximum value, X-axis minimum value, Y-axis maximum value, Y-axis minimum value, Z-axis maximum value and Z-axis minimum value. For example, the target tangent plane state is an X-axis perpendicular tangent plane state, and the corresponding extremum coordinate set includes a Y-axis maximum value, a Y-axis minimum value, a Z-axis maximum value, and a Z-axis minimum value. According to the method, the length of the tangent plane in different directions is obtained by calculation according to the extremum coordinate set, for example, the distance value between the maximum value and the minimum value of the Y axis is 10, the distance value between the maximum value and the minimum value of the Z axis is 20, the length of the tangent plane in different directions at the moment is 10 and 20 respectively, and the tangent plane at the moment can be regarded as a rectangle. In order to enable the length of the tangent plane to be larger than the size of the corresponding BIM model, and enable a user to better distinguish when viewing the tangent plane and the model, the invention can obtain corresponding offset coefficients according to the edge lengths of the tangent planes in different directions.

And calculating the tangent plane side length again based on the offset coefficient to obtain the final tangent plane side length, and taking the final tangent plane side length as the corresponding derived tangent plane specification. According to the invention, the final section side length is calculated again according to the offset coefficient, and the final section side length is derived from the derived section specification. The side length in the derived section specification is calculated by the following formula,

wherein L is _x Is the length of the section side in the parallel direction of the X axis, X _max Maximum value of X axis, X _min Minimum value of x-axis, j _x Is the constant value of the x-axis, k _x For x-axis weight value, L _y Is the length of the section side in the direction parallel to the Y axis, Y _max At the maximum value of the Y axis, Y _min Is the minimum value of the y axis, j _y Is a y-axis constant value, k _y For y-axis weight, L _z Is the length of the tangent plane side in the direction parallel to the Z axis, Z _max At maximum value of Z axis, Z _min Minimum value of z axis, j _z Is z-axis constant value, k _z Is the z-axis weight value. x-axis constant value j _x Y-axis weight value j _y Constant value j of z axis _z May be preset, preferably the same constant value. x-axis weight value k _x Y-axis weight value k _y Z-axis weight value k _z Can be preset, preferably different weight values, and can be set in different modes according to different application scenes, for example, when the building BIM model is higher, the z-axis weight value k is _z The x-axis weight value can be larger, for example, when the pipeline is longer, and the x-axis weight value can be larger and automatically set according to personnel requirements. If X _max -X _min 、Y _max -Y _min Or Z is _max -Z _min The larger the offset coefficient is, the larger the tangent plane side length of the corresponding direction after offset is.

If the user is judged to adjust any one of the section side lengths, the training coefficients of the weight values are obtained by comparing the section side lengths after the user is adjusted with the front side lengths before the user is adjusted, and the corresponding weight values are trained again according to the training coefficients to obtain the trained weight values.

If the user adjusts the length of the tangent plane in the parallel direction of the x axis, the weight value of the x axis is adjusted by the following formula,

wherein C is _x For the adjusted section side length j _x For trained x-axis weight, f _x An adjustment value is preset for the x-axis.

If the user adjusts the length of the tangent plane in the parallel direction of the y axis, the y axis weight value is adjusted by the following formula,

wherein C is _y For the adjusted section side length j _y For trained y-axis weight, f _y An adjustment value is preset for the y-axis.

If the user adjusts the length of the tangent plane in the parallel direction of the z axis, the z axis weight value is adjusted by the following formula,

wherein C is _z For the adjusted section side length j _z For the trained z-axis weight value, f _z An adjustment value is preset for the z-axis.

Through the mode, the training method and the training device can continuously train the weight values, so that the trained weight values more and more meet the requirements of users, and the size specification of the generated two-dimensional derived tangent plane meets the requirements of the users.

And adjusting the two-dimensional export section of the initial specification according to the export section specification to obtain an adjusted two-dimensional export section, and determining the center point of the two-dimensional export section. According to the method, the two-dimensional export tangent plane of the initial specification is adjusted according to the export tangent plane specification to obtain the adjusted two-dimensional export tangent plane, all equipment elements of the whole BIM model can be completely cut through the adjusted two-dimensional export tangent plane, and at the moment, the center point of the two-dimensional export tangent plane can be determined.

And setting the center point of the two-dimensional derived tangent plane in a corresponding manner with corresponding current coordinate position information, and generating a new two-dimensional derived tangent plane corresponding to the current equipment element. The center point of the two-dimensional derived tangent plane is correspondingly overlapped with the corresponding current coordinate position information, for example, the current coordinate position information is (1, 2 and 3), the state of the target tangent plane is the X-axis vertical tangent plane state, at the moment, the corresponding coordinate of the two-dimensional derived tangent plane is X=1, and the abscissa of all points in the two-dimensional derived tangent plane is 1. After the center point of the two-dimensional derived tangent plane is determined, the center point is aligned with the coordinate points of y=2 and z=3, so that the two-dimensional derived tangent plane is positioned at the relative center of the current equipment element.

And step 140, fusing all the historical two-dimensional derived tangent planes in the target derived information with the new two-dimensional derived tangent planes, and displaying and generating a tangent plane derived recommendation table of forward design for all the two-dimensional derived tangent planes according to different display strategies. The invention fuses the historical two-dimensional derived section with the new two-dimensional derived section, obtains the section derived recommendation table according to different displays, and sends the section derived recommendation table to the display equipment of the user for displaying, so as to remind the user and facilitate the selection of the user.

In one possible implementation manner, the step S140 includes:

and determining the center point of the new two-dimensional derived tangent plane and the center points of all historical two-dimensional derived tangent planes in the target derived information. When the center point of the two-dimensional derived tangent plane is determined, the two diagonal lines of the two-dimensional derived tangent plane can be respectively connected, and the point intersected by the two diagonal lines is used as the center point of the two-dimensional derived tangent plane. The invention also determines the center point of the historical two-dimensional derived tangent plane, which may be previously stored.

And sequencing all new two-dimensional derived cuts by analyzing the corresponding center points according to a preset arrangement rule to obtain a new cut surface sequence, and sequencing all historical two-dimensional derived cuts by analyzing the corresponding center points according to the preset arrangement rule to obtain a historical cut surface sequence. The invention analyzes the corresponding center points according to the preset arrangement rule, namely, the center coordinates of each center point are obtained, the comparison is carried out according to the sequence of the X coordinates, the Y coordinates and the Z coordinates, and if the corresponding center coordinates do not have any value of the X coordinates, the Y coordinates and the Z coordinates, the corresponding value can be taken as 0 or statistics is not carried out. The invention firstly carries out statistics on the two-dimensional derived tangent planes with X coordinates, then carries out descending order sequencing to obtain a sequence of the two-dimensional derived tangent planes with X coordinates, if the X coordinates of the two-dimensional derived tangent planes are the same, the invention carries out comparison of Y-axis coordinates or Z-axis coordinates, arranges larger coordinates in the front part of smaller coordinates, and carries out comparison and descending order on different axis coordinate values by analogy to obtain a final new tangent plane sequence. When the historical section sequence is obtained, the method is generated according to a corresponding mode obtained by the new section sequence, so that the method is not repeated.

And sequencing the sequence of the new section before and the sequence of the historical section after to generate a section export recommendation table, displaying the new two-dimensional export section according to a first preset form, and displaying the historical two-dimensional export section according to a second preset form. According to the invention, the new section sequence is sequenced before and the history section sequence is sequenced after again to obtain the corresponding section export recommendation table, so that a user can view the section with change in the section export recommendation table preferentially, the first preset form display can be that the center point and the section shape of the corresponding two-dimensional export section are displayed in red, and the second preset form display can be that the center point and the section shape of the corresponding two-dimensional export section are displayed in blue.

And S150, modifying a section guiding recommendation table according to section modification data input by a user to obtain a section guiding generation table, sequencing all two-dimensional guiding sections in the section guiding generation table to obtain a section sequence, and cutting current BI M three-dimensional data according to the section sequence to obtain corresponding BI M two-dimensional information, wherein each BI M two-dimensional information corresponds to one two-dimensional guiding section. The section export recommendation table is automatically generated according to the BIM three-dimensional data model and the historical information of the corresponding user, so that part of the exported sections in the section export recommendation table can be in accordance with the expected requirement, part of the exported sections can be out of accordance with the expected requirement, even a new exported section is needed to be added, the user can manually input section modification data to modify the section export recommendation table at the moment to obtain the section export generation table, the server can cut the current BIM three-dimensional data according to the section export generation table to obtain the corresponding BIM two-dimensional information, and the BIM two-dimensional information can be a two-dimensional CAD engineering drawing.

In one possible implementation manner, the step S150 includes:

and deleting the new two-dimensional derived tangent plane and/or the historical two-dimensional derived tangent plane in the tangent plane derived recommendation table according to the tangent plane modification data, wherein the tangent plane modification data comprises deletion data of the two-dimensional derived tangent plane. According to the method and the device, the new two-dimensional derived tangent plane and/or the historical two-dimensional derived tangent plane can be deleted according to the tangent plane modification data, namely, a user can select the new two-dimensional derived tangent plane and/or the historical two-dimensional derived tangent plane through the input device, and interact with the server through the input device and the display device to delete the unnecessary two-dimensional derived tangent plane, so that redundant and useless BIM two-dimensional information is avoided.

And adding a new two-dimensional derived tangent plane in a tangent plane derived recommendation table according to the tangent plane modification data, wherein the added new two-dimensional derived tangent plane comprises a corresponding center point. And, the section modifying data may be to add a new two-dimensional derived section, where the new two-dimensional derived section initially has a perpendicular section state identical to the target section state, and if the user considers that the corresponding perpendicular section state does not meet the requirement, the section state of the two-dimensional derived section may be adjusted, and the center point of the corresponding two-dimensional derived section is input.

Sequencing all the two-dimensional derived sections according to a preset arrangement rule to obtain a section sequence, and cutting the current BIM three-dimensional data according to the section sequence to obtain corresponding BIM two-dimensional information. The invention sequences the two-dimensional derived cut surfaces according to a preset arrangement rule to obtain a cut surface sequence, wherein the two-dimensional derived cut surfaces at the moment comprise historical two-dimensional derived cut surfaces, newly and automatically generated two-dimensional derived cut surfaces and newly input two-dimensional derived cut surfaces. As described above, when all the two-dimensional derived tangent planes are ordered, the center points of all the two-dimensional derived tangent planes are sequentially compared according to the priority order of the X-axis coordinate, the Y-axis coordinate and the Z-axis coordinate, and a corresponding tangent plane sequence is obtained after the ordering.

And extracting to obtain the generation moment of BIM two-dimensional information, and obtaining and storing automatic derived information according to the extracted moment and the section sequence. After BIM two-dimensional information is obtained, the time generated by the BIM two-dimensional information is randomly determined, the corresponding extracted time and the automatic derived information of the section sequence are stored, and the history derived table is updated according to the automatic derived information, so that the section corresponding to the obtained automatic derived information can be selected by a user when the user processes the corresponding BIM three-dimensional data next time.

In one possible implementation manner, the technical scheme provided by the invention generates the historical coordinate position information of the historical equipment element and the current coordinate position information of the current equipment element through the following steps:

and calculating according to the maximum X-axis coordinate information, the minimum X-axis coordinate information, the maximum Y-axis coordinate information, the minimum Y-axis coordinate information, the maximum Z-axis coordinate information and the minimum Z-axis coordinate information in each historical equipment element to obtain the central point coordinate of the history of each historical equipment element. When the central point coordinates of the histories of each historic equipment element are obtained, the X-axis value of the central point coordinates is obtained according to the maximum X-axis coordinate information and the minimum X-axis coordinate information, the Y-axis value of the central point coordinates is obtained according to the maximum Y-axis coordinate information and the minimum Y-axis coordinate information, and the Z-axis value of the central point coordinates is obtained according to the maximum Z-axis coordinate information and the minimum Z-axis coordinate information.

And calculating according to the maximum X-axis coordinate information, the minimum X-axis coordinate information, the maximum Y-axis coordinate information, the minimum Y-axis coordinate information, the maximum Z-axis coordinate information and the minimum Z-axis coordinate information in each current equipment element to obtain the current center point coordinate of each current equipment element. Corresponding to the step of determining the historical center point coordinates, the present invention determines the current center point coordinates through the above steps, and will not be described in detail.

In order to implement the forward direction design method based on BIM provided by the invention, the invention also provides a forward direction design system based on BIM, as shown in figure 2, comprising the following structural diagrams:

The present invention also provides a storage medium having stored therein a computer program for implementing the methods provided by the various embodiments described above when executed by a processor.

The storage medium may be a computer storage medium or a communication medium. Communication media includes any medium that facilitates transfer of a computer program from one place to another. Computer storage media can be any available media that can be accessed by a general purpose or special purpose computer. For example, a storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC) for short. In addition, the ASIC may reside in a user device. The processor and the storage medium may reside as discrete components in a communication device. The storage medium may be read-only memory (ROM), random-access memory (RAM), CD-ROMs, magnetic tape, floppy disk, optical data storage device, etc.

The present invention also provides a program product comprising execution instructions stored in a storage medium. The at least one processor of the device may read the execution instructions from the storage medium, the execution instructions being executed by the at least one processor to cause the device to implement the methods provided by the various embodiments described above.

In the above embodiments of the terminal or the server, it should be understood that the processor may be a central processing unit (english: central Processing Unit, abbreviated as CPU), or may be other general purpose processors, digital signal processors (english: digital Signal Processor, abbreviated as DSP), application specific integrated circuits (english: application Specific Integrated Circuit, abbreviated as ASIC), or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in a processor for execution.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. The BIM-based forward design method is characterized by comprising the following steps of:

2. The BIM-based forward design method according to claim 1, wherein,

the method comprises the steps of obtaining a three-dimensional tag corresponding to current BIM three-dimensional data processed by a user, determining corresponding history export data according to the three-dimensional tag, and generating a history export table, wherein the history export table comprises automatic export information or manual export information at different moments and comprises the following steps:

3. The BIM-based forward design method according to claim 2, wherein,

if the user selects the automatic export information or the manual export information at any time in the history export table, the automatic export information or the manual export information at the corresponding time is used as the target export information, and the historical BIM three-dimensional data at the time corresponding to the target export information is determined, including:

4. The BIM-based forward design method as set forth in claim 3, wherein,

comparing the current BIM three-dimensional data with the historical BIM three-dimensional data to obtain difference three-dimensional data, and generating a new two-dimensional derived tangent plane according to the coordinates of the difference three-dimensional data, wherein the method comprises the following steps:

5. The BIM-based forward design method of claim 4, further comprising,

the generating a new two-dimensional derived tangent plane according to the current coordinate position information comprises the following steps:

6. The BIM-based forward design method of claim 5, further comprising,

the generating the two-dimensional derived section of the initial specification parallel to the target section state, determining a target coordinate set according to the target section state, screening and calculating the coordinate information in the historical equipment element according to the target coordinate set to obtain the corresponding derived section specification, including:

7. The BIM-based forward design method of claim 6, further comprising,

fusing all historical two-dimensional derived tangent planes in the target derived information with the new two-dimensional derived tangent planes, displaying all the two-dimensional derived tangent planes according to different display strategies to generate a tangent plane derived recommendation table of forward design, and comprising the following steps:

8. The BIM-based forward design method of claim 7, further comprising,

modifying the tangent plane guiding recommendation table according to the tangent plane modification data input by the user to obtain a tangent plane guiding generation table, sequencing all two-dimensional guiding tangent planes in the tangent plane guiding generation table to obtain a tangent plane sequence, cutting current BIM three-dimensional data according to the tangent plane sequence to obtain corresponding BIM two-dimensional information, wherein each BIM two-dimensional information corresponds to one two-dimensional guiding tangent plane, and the method comprises the following steps:

9. The BIM-based forward design method of claim 4, further comprising generating historical coordinate location information for the historical device element, current coordinate location information for the current device element by: