CN115048707A - Edge component splitting method based on building information model - Google Patents
Edge component splitting method based on building information model Download PDFInfo
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- CN115048707A CN115048707A CN202210847790.1A CN202210847790A CN115048707A CN 115048707 A CN115048707 A CN 115048707A CN 202210847790 A CN202210847790 A CN 202210847790A CN 115048707 A CN115048707 A CN 115048707A
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Abstract
The invention relates to the technical field of engineering design, in particular to an edge component splitting method based on a building information model. The method specifically comprises the following steps: s1, selecting two splitting points in a filling area representing an edge member in the building information model; s2, if the two split points are in the same wall of the building information model, executing the step S3; s3, drawing two straight lines respectively through two splitting points and perpendicular to the axial line of the wall, and splitting the filling area representing the edge member into three filling areas; and S4, removing the filling surface area between the two straight lines to obtain the split edge member. By adopting the method of the invention, after the user automatically generates the edge component area in the wall body, the automatic splitting of the edge component can be completed only by selecting the splitting reference point without manually splitting the edge component, thereby improving the splitting efficiency of the edge component.
Description
Technical Field
The invention relates to the technical field of engineering design, in particular to an edge component splitting method based on a building information model.
Background
Shear wall structures are very common structural forms in building structure design, wherein edge members are reinforced areas in a shear wall body, and after edge member areas in the wall body are automatically generated according to relevant settings, users often need to split the areas of the edge members into a plurality of edge members again according to engineering experience and user requirements. In the prior art, the edge component area in the wall body is usually automatically generated, and then the edge component is manually split by adopting a traditional CAD drawing tool, so that a large amount of repeated labor is generated, the operation is complicated, and the splitting and modifying of the edge component by a user cause that the drawing work efficiency is very low.
Disclosure of Invention
The invention aims to: aiming at the problems of repeated drawing labor, complex operation and low efficiency caused by manual modification after an edge component area in a wall body is automatically generated, the method further provides a method for automatically splitting the edge component by using a computer software program, improves the efficiency of splitting the edge component, and discloses an edge component splitting method based on a building information model.
In order to achieve the purpose, the invention adopts the technical scheme that:
an edge member splitting method based on a building information model specifically comprises the following steps:
s1, selecting two splitting points in a filling area representing an edge member in the building information model;
s2, if the two split points are in the same wall of the building information model, executing the step S3;
s3, drawing two straight lines respectively through two splitting points and perpendicular to the axial line of the wall, and splitting the filling area representing the edge member into three filling areas;
and S4, removing the filling surface area between the two straight lines to obtain the split edge member.
As a preferable embodiment of the present invention, if the two split points are not located in the same wall of the building information model in step S2, the process returns to step S1 to reselect the split point.
As a preferable aspect of the present invention, the step of determining whether the two split points are within the filling area representing the edge member in step S1 specifically includes the steps of: clicking a screen on a graphical interface to select two split points; and respectively making positive rays along the X axis for the splitting points, solving intersection points of the rays and the boundary of the filling area of the edge member, and if the number of the intersection points is odd, enabling the splitting points to be in the filling area of the edge member.
As a preferred embodiment of the present invention, the step S2 of determining whether the two split points are on the same wall of the building information model specifically includes the following steps: in the building information model, two ends of a wall and a wall-thick area are used as a rectangular frame, whether two splitting points are in the rectangular frame of the wall body or not is judged according to the coordinate positions of the two splitting points and the area position of the rectangular frame, if so, the two splitting points are in the same wall body of the building information model, and otherwise, the two splitting points are not in the same wall body of the building information model.
As a preferable scheme of the invention, the method further comprises the following steps: if the intersection of at least one of the two straight lines with the boundary of the filling area representing the edge member is greater than or equal to 3.
Based on the same conception, the module also provides an edge member splitting module based on the building information model, and the module splits a filling area representing an edge member in the building information model by adopting any one of the edge member splitting methods based on the building information model.
Based on the same concept, the edge member splitting device based on the building information model comprises at least one processor and a memory which is in communication connection with the at least one processor; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform any of the methods described above.
Based on the same concept, a computer-readable medium is also proposed, on which instructions executable by a processor are stored, which instructions, when executed by the processor, cause the processor to perform any of the above-mentioned multi-dimensional coding-based pattern recognition methods.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
by adopting the method of the invention, after the user automatically generates the edge component area in the wall body, the automatic splitting of the edge component can be completed only by selecting the splitting reference point without manually splitting the edge component, thereby improving the splitting efficiency of the edge component.
Drawings
Fig. 1 is a flowchart of an edge component splitting method based on a building information model in embodiment 1 of the present invention;
FIG. 2 is a schematic view showing two points K1 and K2 selected in the filling region of the edge member GB1 in example 1 of the present invention;
FIG. 3 is a schematic diagram of intersection points P1 and P2 of a straight line L1 and a boundary line of GB1 in example 2 of the present invention;
fig. 4 is a schematic view of intersection points P3 and P4 of a straight line L2 and a boundary line of GB1 in embodiment 2 of the present invention;
fig. 5 is a diagram of the edge member after detachment in embodiment 2 of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
An edge component splitting method based on a building information model specifically comprises the following steps:
s1, selecting two splitting points in a filling area representing an edge member in the building information model;
s2, if the two split points are in the same wall of the building information model, executing the step S3;
s3, drawing two straight lines respectively through two splitting points and perpendicular to the axial line of the wall, and splitting the filling area representing the edge member into three filling areas;
and S4, removing the filling surface area between the two straight lines to obtain the split edge member.
As a preferable embodiment of the present invention, if the two split points are not located in the same wall of the building information model in step S2, the process returns to step S1 to reselect the split point.
As a preferable aspect of the present invention, the step of determining whether the two split points are within the filling area representing the edge member in step S1 specifically includes the steps of: clicking a screen on a graphical interface to select two split points; and respectively making positive rays along the X axis for the split points, solving intersection points of the rays and the boundary of the filling area of the edge member, and if the number of the intersection points is odd, determining that the split points are in the filling area of the edge member.
As a preferred embodiment of the present invention, the step S2 of determining whether the two split points are on the same wall of the building information model specifically includes the following steps: in the building information model, two ends of a wall and a wall-thick area are used as a rectangular frame, whether two splitting points are in the rectangular frame of the wall body or not is judged according to the coordinate positions of the two splitting points and the area position of the rectangular frame, if so, the two splitting points are in the same wall body of the building information model, and otherwise, the two splitting points are not in the same wall body of the building information model.
As a preferable scheme of the invention, the method further comprises the following steps: if the intersection of at least one of the two straight lines with the boundary of the filling area representing the edge member is greater than or equal to 3.
Example 2
A flow chart of an edge component splitting method based on a building information model is shown in fig. 1, and specifically includes the following steps:
s101 two points K1 and K2 were selected within the filling area of the edge member GB1, as shown in fig. 2.
The user clicks a screen on a graphical interface to select two splitting points, the program analyzes the splitting points, rays are respectively made along the X axis in the positive direction of the splitting points, intersection points of the rays and the boundary of the filling area of the edge component are obtained, and if the number of the intersection points is odd, the splitting points are in the filling area of the edge component. When both split points are in the same edge member fill area, the next step is performed, otherwise the split points are reselected.
S102, judging whether K1 and K2 are in the same unique wall body of the building information model.
Making a rectangular frame by using the two ends and the wall thickness of the wall in the building model, and judging whether the splitting point is in the rectangular frame of the wall; considering that the split point may be in more than one wall, it is necessary to record that the split point is in the rectangular frames of several walls at the same time; the wall bodies containing the splitting points at the same time are different from each other in the connecting direction of the starting point and the end point, and in order to ensure that the splitting reference is unique and accurate, the edge members are split only when the splitting is performed in the same unique wall body of the building information model.
S103, two straight lines L1 and L2 which are long enough are formed, the two straight lines respectively pass through two splitting points and are perpendicular to a connecting line of end points of the wall, and a schematic diagram of intersection points P1 and P2 of the straight line L1 and a boundary line of GB1 is shown in FIG. 3.
The S104 straight lines L1, L2 split the edge member face into three fill face regions.
The invention can obtain point sets which are stored in sequence at each vertex from the edge member filling area, and firstly, the intersection points P1 and P2 of the boundary line of the straight line L1 and GB1 are obtained; the program judges that a point P1 is on a Line1 connecting a pt3 and a pt4, and a point P2 is on a Line2 connecting a pt5 and a pt 6; as can be seen from FIG. 3, GB1 is formed by a point set formed by sequentially connecting pt 0-pt 7, Line1 is formed by connecting pt4 with pt3, pt3 is a starting point, and pt4 is an end point; line2 is formed by connecting pt5 with pt6, with pt5 as the starting point and pt6 as the ending point. Because the index of the starting point pt3 of the Line1 in the point set of the GB1 is more front than the index of the point pt5, the point set of the first edge component GB1a after being split is sequentially from the point pt0 to the starting point pt3, P1, P2 of the Line1 and the end points pt6 and pt7 of the Line2, and the point set of the second edge component GB1b is sequentially from the point pt 1, the end point pt4 of the Line1, the starting point pt5 and the P2 of the Line 2.
The program judges that the straight line L2 splits GB1b, and the splitting method is the same as L1 splits GB 1. As shown in fig. 4, two intersection points of the L2 split edge member are P3 and P4, and the split edge member is denoted as GB2a (the point of GB2a is P1, P3, P4, and P2 in sequence) and GB2b (the point of GB2b is P3, pt4, pt5, and P4 in sequence).
S105, removing a filling surface area between the two straight lines to finally obtain the split edge member.
The program judges the three edge components GB1a, GB2a and GB2b which are split at last, and calculates the number of the top points of the surface area of the edge components which are split to be overlapped with the P1, the P2, the P3 and the P4. And deleting the area with the coincident points of P1-P4, thereby obtaining two split edge members. As shown in fig. 4, the edge member GB2a contains points P1, P2, P3, P4, so GB2a is deleted and GB1a and GB2b are added to the drawing, the split edge member drawing being as shown in fig. 5.
The two straight-line edge component surface area splits may be more than three, so the following constraints need to be made:
assuming that the intersection points of L1 with the edge member boundary are P1, P2, P3 … …, the distance between these intersection points and Q1 is calculated, and two points closest to Q1 are retained, since Q1 is within the edge member area and the edge members are all areas formed by a closed loop, the two points closest to Q1 will necessarily divide the edge member into two. The same screen was done as described above for the intersection of L2 with the edge member boundary.
Firstly splitting the surface Area of the edge member into Area1 and Area2 by using L1, and recording two intersection points P1 and P2 of the edge member split by L1; then L2 is used for splitting Area1 or Area2, and two intersection points P3 and P4 of the L2 split edge component are recorded; and calculating the number of the superposition of the vertex points of the surface areas of the edge members after the splitting and P1, P2, P3 and P4. And deleting the surface areas with coincident points with P1-P4 to obtain the two split edge members.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. An edge member splitting method based on a building information model is characterized by comprising the following steps:
s1, selecting two splitting points in a filling area representing an edge member in the building information model;
s2, if the two split points are in the same wall of the building information model, executing the step S3;
s3, drawing two straight lines respectively through two splitting points and perpendicular to the axial line of the wall, and splitting the filling area representing the edge member into three filling areas;
and S4, removing the filling surface area between the two straight lines to obtain the split edge member.
2. The building information model-based edge member splitting method of claim 1, wherein in step S2, if two splitting points are not located in the same wall of the building information model, the method returns to step S1 to reselect the splitting point.
3. The method for splitting an edge member based on a building information model according to claim 1, wherein the step S1 of determining whether the two split points are in the filling area representing the edge member specifically comprises the steps of: clicking a screen on a graphical interface to select two split points; and respectively making positive rays along the X axis for the splitting points, solving intersection points of the rays and the boundary of the filling area of the edge member, and if the number of the intersection points is odd, enabling the splitting points to be in the filling area of the edge member.
4. The method for splitting the edge member based on the building information model according to claim 1, wherein in step S2, it is determined whether two splitting points are on the same wall of the building information model, and the method specifically includes the following steps: in the building information model, two ends of a wall and a wall-thick area are used as a rectangular frame, whether two splitting points are in the rectangular frame of the wall body or not is judged according to the coordinate positions of the two splitting points and the area position of the rectangular frame, if so, the two splitting points are in the same wall body of the building information model, and otherwise, the two splitting points are not in the same wall body of the building information model.
5. The building information model-based edge member splitting method according to any one of claims 1 to 4, wherein the steps further comprise: if the intersection of at least one of the two straight lines with the boundary of the filling area representing the edge member is greater than or equal to 3.
6. An edge component splitting module based on a building information model, which is characterized in that the module splits a filling area representing an edge component in the building information model by using the edge component splitting method based on the building information model according to any one of claims 1 to 5.
7. An edge member splitting device based on a building information model is characterized by comprising at least one processor and a memory which is in communication connection with the at least one processor; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1 to 4.
8. A computer-readable medium having stored thereon instructions executable by a processor, the instructions, when executed by the processor, causing the processor to perform the method for pattern recognition based on multi-dimensional coding according to any one of claims 1 to 4.
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| CN115935492A (en) * | 2023-03-14 | 2023-04-07 | 北京盈建科软件股份有限公司 | Method and device for processing shear wall edge member and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108170990A (en) * | 2018-01-23 | 2018-06-15 | 成都希盟科技有限公司 | Curve based on BIM technology refers to division methods |
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| CN108170990A (en) * | 2018-01-23 | 2018-06-15 | 成都希盟科技有限公司 | Curve based on BIM technology refers to division methods |
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| CN115935492A (en) * | 2023-03-14 | 2023-04-07 | 北京盈建科软件股份有限公司 | Method and device for processing shear wall edge member and electronic equipment |
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