CN113392445B - BIM-based field decoration method - Google Patents
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Abstract
The invention provides a field decoration method based on BIM, which comprises the steps of placing a positioning piece on a construction site; building a BIM model; obtaining a virtual datum line corresponding to a wall surface of a building structure main body; establishing a virtual shaft network; acquiring the position relation between the positioning piece and the virtual shaft network and the virtual reference line respectively; marking a shaft net to be paid off and a reference line to be paid off in a building structure main body of a construction site; and performing decoration treatment on the construction site according to the space between the scanning datum plane corresponding to the virtual datum line and the building structure main body wall surface corresponding to the virtual datum line in the BIM model. According to the method, the accurate marking positions of the shaft network to be paid off and the datum line to be paid off on a construction site are obtained through the position relation between the positioning piece in the BIM model, the virtual shaft network and the virtual datum line; the virtual object to be repaired is arranged between the scanning reference surface and the wall surface of the building structure main body, so that one-to-one correspondence treatment is carried out on the construction site, and the beautiful effect of the building structure main body after decoration is ensured.
Description
Technical Field
The invention relates to the technical field of building decoration construction, in particular to a field decoration method based on BIM.
Background
The traditional modeling mode generally carries out field measurement on a decoration scene by manpower and then models, the wall surfaces are mutually perpendicular by default in the modeling process, and the wall surfaces and the ground are set in parallel or perpendicular to each surface of a reference coordinate system, which is an ideal modeling effect, wherein the reference coordinate system is an absolute coordinate system corresponding to ideal modeling.
However, in the actual scene, the wall surfaces of the building structure main body are not necessarily in an absolute vertical relationship, if the virtual object to be placed is placed in the modeled virtual model, the virtual object to be placed can be closely attached to the wall surface of the virtual model, but various undetachable convex structures exist on the wall surfaces of the building structure main body in the actual scene, the wall surfaces are not necessarily vertical, so that the object to be placed in the actual scene cannot achieve the placing effect of the virtual model, inconvenience is brought to subsequent decoration construction, and the decoration operation efficiency is further affected.
Disclosure of Invention
The invention aims to provide a field decoration method based on BIM, which realizes accurate measurement of a construction field through a BIM model and effectively improves decoration construction efficiency.
In order to achieve the above purpose, the invention adopts the following technical means:
a field decoration method based on BIM comprises the following steps:
positioning pieces are placed on a construction site;
building a BIM model;
obtaining a virtual datum line corresponding to the wall surface of the building structure main body in the BIM;
establishing a virtual shaft network in the BIM model;
acquiring the position relation between the positioning piece and the virtual shaft network and the virtual datum line in the BIM model;
marking the shaft net to be paid off and the reference line to be paid off in the building structure main body of the construction site according to the position relation between the positioning piece, the virtual shaft net and the virtual reference line, which are obtained in the BIM;
and performing decoration treatment on the construction site according to the space between the scanning datum plane corresponding to the virtual datum line and the building structure main body wall surface corresponding to the virtual datum line in the BIM model.
In one embodiment, after the step of performing the decoration treatment on the construction site according to the space between the scanning datum plane corresponding to the virtual datum line and the building structure main body wall surface corresponding to the virtual datum line in the BIM model, the method further includes:
and carrying out construction treatment on the building structure main body at a construction site according to the distances between the virtual shaft net and each wall surface of the building structure main body in the BIM model.
In one embodiment, the method for constructing the BIM model by the steps comprises the following steps:
performing point cloud data scanning on the wall surface of the building structure main body and the positioning piece, acquiring a scanning result, and sending the scanning result to the host; :
and acquiring surface layer information corresponding to the wall surface of the building structure main body and surface layer information corresponding to the positioning piece through a scanning result, and constructing the BIM.
In one embodiment, the method for obtaining the virtual datum line corresponding to the wall surface of the building structure body in the BIM model includes the following steps:
acquiring scanning points on a corresponding surface layer of a wall surface of a building structure main body;
obtaining wall surface scanning point projection information according to the projection of the scanning points on the corresponding surface layer of the wall surface of the building structure main body under one projection surface of the reference coordinate system;
obtaining a convex scanning point projection set according to the wall surface scanning point projection information;
and obtaining two non-coincident most convex scanning point projections in the convex scanning point projection set, wherein a connecting line between the two most convex scanning point projections is a virtual datum line, and the virtual datum line is arranged on the projection surface.
In one embodiment, the projection plane includes an X-Y projection plane, an X-Z projection plane, or a Y-Z projection plane in a reference coordinate system.
In one embodiment, the convex point projection set is a projection of a scan point corresponding to a convex portion on a wall surface of the building structure body on a projection plane under a reference coordinate system.
In one embodiment, the method for establishing the virtual axis network in the BIM model includes the following specific operation procedures:
obtaining the length of a virtual datum line corresponding to the wall surface of the building structure main body in the BIM;
selecting a virtual axis network interval;
a virtual axis network is built within the BIM model.
In one embodiment, the method for acquiring the positional relationship between the positioning element and the virtual axis network and the virtual reference line in the BIM model includes the following steps:
virtual position information of a virtual positioning piece and virtual position information of a scanner in the BIM model are obtained, and a projection reference point corresponding to the positioning piece and a projection scanning point corresponding to the scanner are obtained;
and obtaining the distances between the projection reference point and the projection scanning point and the virtual axis network and the virtual datum line respectively in the BIM model.
In one embodiment, the method for marking the shaft network to be paid off and the reference line to be paid off in the building structure body of the construction site according to the positional relationship between the positioning piece, the virtual shaft network and the virtual reference line obtained in the BIM model comprises the following steps:
the method comprises the steps of obtaining a projection position of a positioning piece and a projection position of a scanner on one wall surface of a main body of a building structure according to the projection of the positioning piece and the scanner on one wall surface of the main body of the building structure on a construction site;
and according to the distances between the projection reference point and the projection scanning point and the virtual axis network and the virtual datum line respectively obtained in the BIM model, marking the axis network to be paid off and the datum line to be paid off in the building structure main body of the construction site by matching with the projection position of the positioning piece and the projection position of the scanner.
In one embodiment, the method for obtaining the projection position of the positioning piece and the projection position of the scanner on one wall surface of the main body of the building structure according to the projection of the positioning piece and the scanner on one wall surface of the main body of the building structure at the construction site comprises the following specific operations:
obtaining distances between projection scanning points and projection reference points in a BIM model;
acquiring a projection position of a positioning piece at a construction site;
and determining the projection position of the scanner on the construction site according to the projection position of the positioning piece and the distance between the projection scanning point and the projection reference point.
Compared with the prior art, the invention has the following technical effects:
according to the field decoration method based on BIM, the accurate marking positions of the shaft network to be paid off and the reference line to be paid off on a construction site are obtained through the position relation between the positioning piece in the BIM model, the virtual shaft network and the virtual reference line; and then placing the virtual object to be repaired between the scanning datum plane corresponding to the virtual datum line and the wall surface of the main body of the building structure corresponding to the virtual datum line, and further carrying out one-to-one correspondence processing on the construction site according to the placement position of the virtual object to be repaired, thereby ensuring the beautiful effect of the main body of the building structure after the decoration of the building structure on the construction site.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a schematic flow chart of a BIM-based field decoration method provided by the invention;
FIG. 2 is a schematic flow chart of another embodiment of a BIM-based field decoration method according to the present invention;
FIG. 3 shows a schematic diagram of a structure of a BIM-based field decoration method according to the present invention after a virtual axis network is built in a BIM model;
fig. 4 shows a schematic diagram of scanning reference surfaces corresponding to two wall surfaces in a building structure main body in a BIM model in a field decoration method based on BIM.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Fig. 1 shows a flow chart of a field decoration method based on BIM provided by the present invention, as shown in fig. 1, the field decoration method based on BIM includes steps S110 to S170, specifically as follows:
step S110, positioning pieces are placed on a construction site; specifically, the number of the positioning pieces is at least two, a scanner is placed on a construction site, and the positioning pieces are placed on the wall surface of a building structure main body on the construction site; the positioning piece can be of a circular plate structure, and can be of other shape structures, such as a triangular structure and the like, according to requirements;
step S120, building a BIM model; the construction site performs point cloud data scanning on the building structure main body to construct a BIM model, and conversion operation on the building structure main body can be realized according to other modes, namely, the BIM model is constructed according to the dimension and the like of the building structure main body at the construction site, so that virtual objects to be placed in the BIM model are matched with real objects to be placed in the construction site one by one, and the accurate placement effect of the real objects to be placed in the construction site is effectively improved.
Specifically, the step S120, the method for constructing the BIM model, includes the following steps:
step S121, performing point cloud data scanning on the wall surface of the building structure main body and the positioning piece, obtaining a scanning result, and sending the scanning result to the host; the wall surface of the building structure main body comprises a main wall surface and an auxiliary wall surface, the main wall surface is an outer wall surface which is formed by surrounding the building structure main body, the auxiliary wall surface is an inner wall surface which protrudes into the building structure main body, and in a construction site, the positioning piece can be placed on at least two wall surfaces of the building structure main body according to requirements;
step S122, obtaining surface layer information corresponding to the wall surface of the building structure main body and surface layer information corresponding to the positioning piece through a scanning result, and constructing a BIM model.
Step S130, obtaining a virtual datum line corresponding to the wall surface of the building structure main body in the BIM;
the step S130, a method for obtaining a virtual datum line corresponding to a wall surface of a building structure main body in a BIM model, includes the following steps:
step S131, obtaining scanning points on a corresponding surface layer of a wall surface of a building structure main body;
and S132, obtaining wall surface scanning point projection information according to the projection of the scanning points on the corresponding surface layer of the wall surface of the building structure main body under one projection surface of the reference coordinate system. According to the projection of the scanning point on the corresponding surface layer of the wall surface of the building structure main body under one projection surface of the reference coordinate system, the projection information of the scanning point of the column surface can be obtained, and the column is of a column structure protruding out of the wall surface, and is not considered because the column is used as a part of decoration; the wall surface scanning points and the column surface scanning points are identified by BIM software, which is a known technology and need not be described herein.
In this embodiment, when the projection plane is the X-Y projection plane, the surface layers corresponding to the four main wall surfaces on the building structure body can generate projections under the X-Y projection plane, and at this time, two main wall surfaces connected with each other are taken as projection bodies, which generate scanning point projections of two main wall surfaces connected with each other as shown in fig. 4 on the X-Y projection plane.
In the above description, when the projection plane is an X-Z projection plane or a Y-Z projection plane, a person skilled in the art may also obtain, by using the above method, the projection of the scan points of the two connected main walls on the X-Z projection plane or the Y-Z projection plane on the building structure body, which is not described herein.
Step S133, a convex surface scanning point projection set is obtained according to wall surface scanning point projection information, wherein the convex surface point projection set is the projection of a scanning point corresponding to a convex part on a wall surface of a building structure main body on a projection plane of a reference coordinate system, and the projection plane under the reference coordinate system is an X-Y projection plane under the reference coordinate system.
Step S134, obtaining two non-coincident most convex scanning point projections in a convex scanning point projection set, wherein a connecting line between the two most convex scanning point projections is a virtual datum line, and the virtual datum line is arranged on a projection plane; the scanning reference surface can be obtained according to the two most convex scanning points, passes through the virtual reference line and is perpendicular to the projection surface; the projection of the most convex scanning point can be obtained through BIM software; in this embodiment, the scan reference planes corresponding to the two wall surfaces in the building structure body shown in fig. 4 are generated in the BIM model.
Step S140, establishing a virtual shaft network in the BIM model; the shaft network spacing is selected according to the building structure main body of the construction site so as to achieve the effect of facilitating subsequent decoration construction, wherein the virtual shaft network comprises a plurality of vertical intersecting axes, and the shaft network spacing can be selected to be different according to the actual decoration requirement of the building structure main body of the construction site so as to achieve the requirement of the optimal decoration effect of the building structure main body.
In one embodiment, the step S140 is a method for establishing a virtual axis network in a BIM model, and the specific operation process is as follows:
obtaining the length of a virtual datum line corresponding to the wall surface of the building structure main body in the BIM; in the embodiment, a virtual axis network is established based on a virtual datum line with a larger length value so as to fully satisfy the decoration effect;
selecting the virtual shaft network spacing to achieve the effect of facilitating subsequent decoration construction;
a virtual axis network is built within the BIM model.
And S150, acquiring the position relation between the positioning piece and the virtual shaft network and the virtual datum line in the BIM model.
Specifically, the step S150 is a method for acquiring the positional relationship between the positioning element and the virtual axis network and the virtual reference line in the BIM model, and the method includes the following steps:
step S151, virtual position information of a virtual positioning piece and virtual position information of a scanner in a BIM model are obtained, and a projection reference point corresponding to the positioning piece and a projection scanning point corresponding to the scanner are obtained; in this embodiment, the projection reference points corresponding to the positioning elements are projection reference points of the center points of the positioning elements on the X-Y projection plane of the reference coordinate system, where the projection reference points include a first reference point, a second reference point and a third reference point, the first reference point, the second reference point and the third reference point are respectively projections of the center points of the positioning elements on the projection plane on three wall surfaces of the building structure main body, and the projection scanning points corresponding to the scanners are projection scanning points of the scanners on the X-Y projection plane under the reference coordinate system.
Similarly, when the projection plane is the X-Z projection plane or the Y-Z projection plane of the reference coordinate system, the operation steps are the same as described above, so as to obtain the projection reference points corresponding to the positioning element on other projection planes and the projection scanning points corresponding to the scanner on other projection planes.
Step S152, obtaining distances between a projection reference point and a projection scanning point and a virtual axis network and a virtual datum line respectively in a BIM model; specifically, distances between the first reference point, the second reference point and the third reference point and a part of axes in the virtual axis network are respectively obtained in the BIM model, distances between the first reference point, the second reference point and the third reference point and the virtual reference line are respectively obtained in the BIM model, distances between the projection scanning point and the part of axes in the virtual axis network are obtained in the BIM model, and distances between the projection scanning point and the virtual reference line are obtained in the BIM model.
Step S160, marking the shaft net to be paid off and the reference line to be paid off in the building structure body of the construction site according to the position relation between the positioning piece, the virtual shaft net and the virtual reference line, which are obtained in the BIM; in the embodiment, the bobbin net to be paid off and the datum line to be paid off can be marked on the ground in the building structure main body in a spring wire mode and the like, compared with the traditional field decoration method, the method utilizes the one-to-one correspondence between the projection reference point corresponding to the positioning piece in the BIM model, the projection scanning point corresponding to the scanner and the projection position of the positioning piece in the construction field and the projection position of the scanner, and is matched with the distances between the accurate projection reference point and the projection scanning point obtained in the BIM model and the virtual bobbin net and the virtual datum line respectively, so that the accurate marking positions of the bobbin net to be paid off and the datum line to be paid off in the construction field can be obtained, the accurate and reliable dimensional data in the BIM model can be ensured, and meanwhile, the accurate paying off operation in the construction field can be realized without error conversion, thereby being beneficial to the rapid and accurate development of decoration work.
Specifically, the step S160 is a method for marking the axial net to be paid off and the reference line to be paid off in the building structure main body of the construction site according to the positional relationship between the positioning element and the virtual axial net and the virtual reference line obtained in the BIM model, and the method comprises the following steps:
step 161, obtaining a projection position of a positioning piece and a projection position of a scanner on one wall surface of a building structure main body on a construction site according to the projection of the positioning piece and the scanner on one wall surface of the building structure main body; in this embodiment, the ground is selected as one of the walls in the building structure main body, and the ground in the construction site is in one-to-one correspondence with the X-Z projection of the reference coordinate system in the BIM model, so as to obtain the projection position of the positioning element on the ground and the projection position of the scanner on the ground, where the projection position of the positioning element can be obtained by using an infrared measurement instrument, and the projection position of the scanner can be obtained according to the distance between the projection position of the positioning element and the projection position of the positioning element.
The method for acquiring the projection position of the positioning piece and the projection position of the scanner of one wall surface of the main body of the building structure on the construction site according to the projection of the positioning piece and the scanner of one wall surface of the main body of the building structure comprises the following specific operations:
obtaining distances between projection scanning points and projection reference points in a BIM model;
acquiring a projection position of a positioning piece at a construction site;
determining the projection position of the scanner on a construction site according to the projection position of the positioning piece and the distance between the projection scanning point and the projection reference point; specifically, the projection positions of the positioning pieces can be used as circle centers, the distance between the projection scanning point and the projection reference point is used as a radius to form circles, and the intersection point positions of the three circles are the projection positions of the scanner.
In step S162, according to the distances between the projection reference point and the projection scanning point, which are respectively, and the virtual axis network and the virtual reference line, in the BIM model, the projection position of the positioning piece and the projection position of the scanner are matched in the building structure main body of the construction site to carry out marking treatment on the axis network to be paid off and the reference line to be paid off.
In step S161, the X-Y projection plane in the reference coordinate system in the BIM model is in one-to-one correspondence with the ground of the construction site; in step S182, the projection reference point in the BIM model and the projection position of the positioning element at the construction site are in a one-to-one correspondence, and the projection scanning point in the BIM model and the projection position of the scanner at the construction site are in a one-to-one correspondence, so that the distances between the projection position of the positioning element at the construction site and the axis net to be paid off and the distance between the projection reference point in the BIM model and the virtual axis net and the virtual reference line can be obtained through the distances between the projection reference point in the BIM model and the virtual axis net and the distance between the projection reference point in the BIM model and the virtual reference line are equal; the distance between the projection position of the construction site scanner and the axial net to be paid off and the distance between the projection scanning point in the BIM model and the virtual axial net and the virtual datum line can be obtained, and the distances between the projection scanning point and the virtual axial net and the distances between the projection scanning point and the virtual datum line are equal.
Step S170, performing decoration treatment on a construction site according to the space between a scanning datum plane corresponding to a virtual datum line in the BIM model and a building structure main body wall surface corresponding to the virtual datum line; referring to fig. 1 and fig. 3, specifically, firstly, using a one-to-one correspondence relationship between a projection reference point corresponding to a positioning element in a BIM model, a projection scanning point corresponding to a scanner, a projection position of a positioning element in a construction site, and a projection position of the scanner, and matching the distances between an accurate projection reference point and a projection scanning point obtained in the BIM model and a virtual axis network and a virtual reference line respectively, so as to obtain accurate marking positions of the axis network to be paid off and the reference line to be paid off in the construction site; then placing the virtual object to be repaired between the scanning datum plane corresponding to the virtual datum line and the wall surface of the main body of the building structure corresponding to the virtual datum line, and further carrying out one-to-one correspondence treatment on the construction site according to the placement position of the virtual object to be repaired, so as to ensure the beautiful effect of the main body of the building structure after the decoration of the building structure on the construction site; the object to be repaired is of a hard decoration structure, objects corresponding to decoration design, drainage design and electromechanical design are conveniently placed between the wall surfaces of the building structure main body corresponding to the scanning datum plane and the virtual datum line, and the building structure main body after decoration treatment is effectively guaranteed to be more attractive.
Referring to fig. 2 and 3, in one embodiment, after the step S170, the method further includes:
and step S180, performing construction treatment on the building structure main body at a construction site according to the distance between the virtual axis network and each wall surface of the building structure main body in the BIM model, so that each wall surface of the decorated building structure main body is vertical and/or parallel to a projection surface of a reference coordinate system, and the decorated building structure main body is effectively ensured to be more attractive.
According to the space between the virtual shaft net and the wall surface of the building structure main body in the BIM model, the virtual object to be decorated is placed in the space, the object to be decorated is manufactured in advance according to the size of the virtual object to be decorated, and finally the object to be decorated is attached to the wall surface of the building structure main body, so that the decoration efficiency is effectively improved, and meanwhile, the error rate of decoration operation in a construction site is reduced.
In summary, according to the field decoration method based on BIM, the accurate marking positions of the shaft network to be paid off and the reference line to be paid off on a construction site are obtained through the position relation between the positioning piece in the BIM model, the virtual shaft network and the virtual reference line; and then placing the virtual object to be repaired between the scanning datum plane corresponding to the virtual datum line and the wall surface of the main body of the building structure corresponding to the virtual datum line, and further carrying out one-to-one correspondence processing on the construction site according to the placement position of the virtual object to be repaired, thereby ensuring the beautiful effect of the main body of the building structure after the decoration of the building structure on the construction site.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (8)
1. A field decoration method based on BIM is characterized by comprising the following steps,
positioning pieces are placed on a construction site; the number of the positioning pieces is at least two, a scanner is placed on a construction site, and the positioning pieces are placed on the wall surface of a building structure main body on the construction site;
building a BIM model; the method for constructing the BIM model comprises the following steps:
performing point cloud data scanning on the wall surface of the building structure main body and the positioning piece, acquiring a scanning result, and sending the scanning result to the host;
acquiring surface layer information corresponding to the wall surface of the building structure main body and surface layer information corresponding to the positioning piece through a scanning result, and constructing a BIM model;
obtaining a virtual datum line corresponding to the wall surface of the building structure main body in the BIM; the method for acquiring the virtual datum line corresponding to the wall surface of the building structure main body in the BIM comprises the following steps:
acquiring scanning points on a corresponding surface layer of a wall surface of a building structure main body;
obtaining wall surface scanning point projection information according to the projection of the scanning points on the corresponding surface layer of the wall surface of the building structure main body under one projection surface of the reference coordinate system;
obtaining a convex scanning point projection set according to the wall surface scanning point projection information;
obtaining two non-coincident most convex scanning point projections in a convex scanning point projection set, wherein a connecting line between the two most convex scanning point projections is a virtual datum line, and the virtual datum line is arranged on a projection plane;
establishing a virtual shaft network in the BIM model;
acquiring the position relation between the positioning piece and the virtual shaft network and the virtual datum line in the BIM model;
marking the shaft net to be paid off and the reference line to be paid off in the building structure main body of the construction site according to the position relation between the positioning piece, the virtual shaft net and the virtual reference line, which are obtained in the BIM;
and performing decoration treatment on the construction site according to the space between the scanning datum plane corresponding to the virtual datum line and the building structure main body wall surface corresponding to the virtual datum line in the BIM model.
2. The method according to claim 1, wherein the step of finishing the construction site according to a space between a scanning reference plane corresponding to the virtual reference line and a wall surface of the main body of the building structure corresponding to the virtual reference line in the BIM model, further comprises:
and carrying out construction treatment on the building structure main body at a construction site according to the distances between the virtual shaft net and each wall surface of the building structure main body in the BIM model.
3. A BIM-based field decorating method according to claim 1, wherein: the projection plane comprises an X-Y projection plane, an X-Z projection plane or a Y-Z projection plane under a reference coordinate system.
4. A BIM-based field decorating method according to claim 1, wherein: the convex point projection set is the projection of the scanning point corresponding to the convex part on the wall surface of the building structure main body on the projection surface under the reference coordinate system.
5. The field decoration method based on BIM according to claim 1 or 2, wherein the method for establishing the virtual axis network in the BIM model comprises the following specific operation procedures:
obtaining the length of a virtual datum line corresponding to the wall surface of the building structure main body in the BIM;
selecting a virtual axis network interval;
a virtual axis network is built within the BIM model.
6. The field decoration method based on BIM according to claim 1 or 2, wherein the method for obtaining the positional relationship between the positioning element and the virtual shaft network and the virtual reference line in the BIM model includes the following steps:
virtual position information of a virtual positioning piece and virtual position information of a scanner in the BIM model are obtained, and a projection reference point corresponding to the positioning piece and a projection scanning point corresponding to the scanner are obtained;
and obtaining the distances between the projection reference point and the projection scanning point and the virtual axis network and the virtual datum line respectively in the BIM model.
7. The field decoration method based on BIM according to claim 1 or 2, wherein the step is a method for marking the shaft net to be paid out and the reference line to be paid out in the building structure body of the construction site according to the positional relationship between the positioning member and the virtual shaft net and the virtual reference line obtained in the BIM model, comprising the steps of:
the method comprises the steps of obtaining a projection position of a positioning piece and a projection position of a scanner on one wall surface of a main body of a building structure according to the projection of the positioning piece and the scanner on one wall surface of the main body of the building structure on a construction site;
and according to the distances between the projection reference point and the projection scanning point and the virtual axis network and the virtual datum line respectively obtained in the BIM model, marking the axis network to be paid off and the datum line to be paid off in the building structure main body of the construction site by matching with the projection position of the positioning piece and the projection position of the scanner.
8. The method for building decoration based on BIM according to claim 7, wherein the step is to obtain the projection position of the positioning element and the projection position of the scanner on one wall surface of the main body of the building structure according to the projection of the positioning element and the scanner on one wall surface of the main body of the building structure at the construction site, and the specific operations are as follows:
obtaining distances between projection scanning points and projection reference points in a BIM model;
acquiring a projection position of a positioning piece at a construction site;
and determining the projection position of the scanner on the construction site according to the projection position of the positioning piece and the distance between the projection scanning point and the projection reference point.
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