A parametric method for drawing ditch Revit models

Abstract

A parametric ditch Revit modeling method includes the following steps: back-end technical support personnel formulate logical rules for generating planar graphics of ditch components in Revit software; front-end application personnel input the required ditch component data into Revit software, which then generates models of the ditch components based on the logical rules described in step 1; and the front-end application personnel connect the ditch component models obtained in step 2 along the ditch's trajectory to obtain the overall ditch model. This method can meet the needs of generating ditch models with varying cross-sections and elevations along the ditch line. It is also easy to use, quick to build, smooth, and provides accurate feedback.

Description

Technical Field

[0001] The present invention relates to the field of architectural design, in particular to architectural drainage technology, and specifically to a parameterized ditch Revit model drawing method. Background Art

[0002] The performance, endurance, and service life of airport runways are influenced by multiple factors, but the most critical cause of runway damage is water. Water is the most destructive and direct factor to runways. Damage to pavement and subgrade is related to erosion by surface or groundwater. Water can damage both the surface and the structure of airport runways, degrading their performance and shortening their service life. Therefore, the importance of drainage to airport runways is self-evident.

[0003] Southeast Asia enjoys abundant rainfall, and during airport runway construction, the quality of drainage systems directly impacts the runway's future use. With technological advancements, BIM technology is now widely used for building design and inspection, allowing for corrections to deficiencies or defects. This also applies to airport runway drainage systems.

[0004] With the maturity of BIM technology application and the fact that ditches are an important part of drainage systems, BIM technology will also be used to assist the construction process of drainage systems, thereby ensuring the construction quality of drainage systems. In order to use BIM technology to carry out in-depth design and guide construction of ditches, the drainage system, especially the ditch model, must be drawn first. The difficulty lies here: Figure 1 The width and depth of the ditch are constantly changing along the runway direction. Different drainage ditches have different cross-sections. In addition to the changes in cross-section, there are also changes in elevation. The elevation changes of airport runways are very frequent and the control requirements are very high, which greatly increases the difficulty of controlling the elevation of the ditch. Coupled with the changes in cross-sectional shape, the drawing of the ditch model becomes very difficult.

[0005] Conventional design methods rely on Revit software's built-in architectural components, lacking components directly suitable for trench modeling. Choosing a built-in model requires significant effort, requiring numerous modifications. Modeling is both labor-intensive and time-consuming, especially for large airports or those with high-level runways, requiring a dedicated team of several personnel and months of completion. This not only significantly increases project costs but also slows down the entire design, design, and construction process. However, if the design is inadequate, it will not be able to proactively identify issues and guide construction.

[0006] Therefore, it is necessary to find a method that is different from traditional technology and can quickly draw ditch models with high quality and low cost, so as to discover design problems and reduce the difficulty of construction. Summary of the Invention

[0007] The purpose of the present invention is to propose a parameterized ditch Revit model drawing method, which can meet the needs of generating ditch models with changing ditch cross-sections and elevations along the line, and also has the characteristics of easy use, fast modeling, smooth modeling and accurate feedback.

[0008] In order to achieve the above object, the present invention is achieved as follows:

[0009] A parametric ditch Revit model drawing method, including

[0010] Step 1: Back-end technical support personnel formulate logical rules for generating plan drawings of ditch components in Revit software;

[0011] Step 2: The front-end application personnel input the data information of the required ditch components into the Revit software, and the Revit software generates a model of the ditch components based on the logical rules described in step 1;

[0012] Step 3: The front-end application personnel connect the ditch component models obtained in step 2 according to the ditch direction trajectory to obtain the overall ditch model.

[0013] The logical rules for generating the plane graphics of ditch-type components referred to in the above step 1 include: using the beam family as the base to create a new family, modifying the beam outline to the ditch outline, using the beam running trajectory of computer software to generate the family, and drawing the ditch in the field model.

[0014] In step 2 above, the data information of the required ditch components is input into the Revit software, including the ditch bottom elevation, channel bottom width, and channel top width. Among them, the channel bottom width is derived according to the calculation formula: channel bottom width = channel top width - 2.5 * (top elevation - bottom elevation).

[0015] Furthermore, the above-mentioned parametric-based ditch Revit model drawing method also includes the preliminary step of deepening the ditch drawings, which specifically includes eliminating unnecessary modeling content on the drawings and finding key control points.

[0016] Furthermore, in the above-mentioned parametric ditch Revit model drawing method, in step 3 and the drawing deepening step, the beam family or ditch is divided into two ends, and the relevant parameters are also divided into the starting point and the end point; by inputting the key control point elements, the overall ditch model is modeled using Revit software.

[0017] Finally, the above-mentioned parametric ditch Revit model drawing method also includes step 4, adding instance parameters to the family type to complete the adaptive family; at this point, the back-end technicians' work is all completed. Subsequently, the front-end application personnel enter data according to the drawing content in the "Value" column in the family type plug-in of the Revit software, and pick up the ditch drawing path in the Revit software to generate the required model and data.

[0018] The overall idea of ​​the parametric ditch Revit model drawing method proposed in the present invention is:

[0019] 1. On the back-end technical support level, first, based on the characteristic of constantly changing cross-sections, the underlying modeling process was parameterized. Subsequently, front-end modelers used the computer to automatically generate the ditch cross-section by inputting parameters, reducing their burden. Secondly, based on the structural characteristics of the components, it was decided to perform parametric transformation based on the beam family and create a new beam family. This facilitates the adaptation of ditch modeling needs to different ground conditions.

[0020] 2. In the process of implementing parameterization in the underlying modeling, the relationship between various parameters is comprehensively considered to simplify the complex and retain the essential. Unnecessary modeling content on the drawings is eliminated, the number of parameters that need to be manually input is reduced, key control points are found, and parameters are derived by using formulas. The solution of difficult and painful points is put in front, and technical support personnel complete the parametric design of the cross-section at the back end to facilitate direct application by front-end modelers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the shape of a variable-section arc ditch.

[0022] Figure 2 for Figure 1 Cross-sectional changes of the middle ditch. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions of the embodiments of the present application in conjunction with the accompanying drawings. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection requested by this application.

[0024] like Figure 1 、 Figure 2 As shown in the figure, a parametric ditch Revit model drawing method includes:

[0025] Step 1: Back-end technical support personnel formulate logical rules for generating plan drawings of ditch components in Revit software;

[0026] Step 2: The front-end application personnel input the required ditch component data into the Revit software. The Revit software generates a model of the ditch component based on the logical rules described in Step 1. The data includes the ditch bottom elevation, bottom width, and top width. If the bottom width is not marked, it is calculated according to the formula: bottom width = top width - 2.5 * (top elevation - bottom elevation).

[0027] Step 3: The front-end application personnel connect the ditch component models obtained in step 2 according to the ditch direction trajectory to obtain the overall ditch model;

[0028] Step 4. Add instance parameters to the family type to complete the adaptive family. At this point, the back-end technicians have completed all their work. Subsequently, the front-end application personnel will enter data according to the drawing content in the "Value" column in the family type plug-in of the Revit software, and pick the drawing path of the ditch in the Revit software to generate the required model and data.

[0029] In the above-mentioned parametric ditch Revit model drawing method, when deepening the ditch drawings in the early stage, unnecessary modeling content on the drawings should be eliminated and key control points should be found, including the basic outline data of the ditch, the upper and lower bottom widths of the ditch, and the ditch height.

[0030] In the above-mentioned parametric-based ditch Revit model drawing method, since the beam family or ditch is divided into two ends, the relevant parameters are also divided into two parts: the starting point and the end point; therefore, by inputting the key control point elements, the overall ditch model is modeled using Revit software.

[0031] The advantages of the above-mentioned parametric ditch Revit model drawing method are:

[0032] 1. Simple modeling: Just select two points like a beam, input parameters, and use the formula to automatically calculate and generate the model. Only a small number of back-end modelers are needed to build the "family".

[0033] 2. Detailed and comprehensive information: Information including length and volume can be automatically counted and merged to facilitate the calculation of engineering quantities, and the results of the engineering quantities obtained are very accurate.

[0034] 3. Quick and convenient inspection: The model is generated by computer using formula control. You only need to check the input parameters against the drawings. If the generation fails, it can directly reflect that there is a problem with the drawing, which can quickly discover design problems.

[0035] 4. Lowering the barrier to entry: More on-site personnel can be mobilized to participate in BIM work. For the Phnom Penh New Airport project, the original workload, which would have required five professional modelers working day and night for two months, was reduced to two modelers building all the families in two weeks. Project staff then completed the entire ditch model in another two weeks, significantly reducing costs and time.

[0036] 5. It can complete the drawing of ditch models at low cost, high quality and very quickly. The operation is replicable and has a wide range of applications. It can complete the detailed design in time and play a role in detailed guidance of construction.

[0037] The above are only embodiments provided for this application and are not intended to limit this application. Although this application has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A parametric ditch Revit model drawing method, including Step 1: Back-end technical support personnel formulate logical rules for generating plan drawings of ditch components in Revit software; Step 2: The front-end application personnel input the data information of the required ditch components into the Revit software, and the Revit software generates a model of the ditch components based on the logical rules described in step 1; Step 3: The front-end application personnel connect the ditch component models obtained in step 2 according to the ditch direction trajectory, thereby synchronously generating and obtaining the overall ditch model; Its characteristics are: The logic rules for generating the planar graphics of the ditch components mentioned in step 1 include: modifying and borrowing the original linear logic of the existing beam family based on the existing beam family. The underlying logic is to change the rectangular cross-section of the beam to a ditch cross-section; In step 2, input the required ditch component data into the Revit software, including ditch bottom elevation, channel bottom width, and channel top width. The channel bottom width is derived according to the calculation formula: channel bottom width = channel top width - 2.5 × (top elevation - bottom elevation); In step 3 and the drawing deepening step, the beam family or ditch is divided into the head and tail ends, and the relevant parameters are also divided into the starting point and the end point. By inputting the key control point elements, the overall ditch model is modeled using Revit software.

2. The parametric Revit model drawing method for a ditch according to claim 1 is characterized by: It also includes the preliminary steps of deepening the ditch drawings, which include removing unnecessary modeling content on the drawings and finding key control points, including the basic contour data of the ditch, the upper and lower bottom widths of the ditch, and the ditch height.

3. The parametric Revit model drawing method for a ditch according to claim 1 is characterized by: It also includes step 4, adding instance parameters to the family type to complete the adaptive family, that is, using the underlying logic of the beam family to generate a ditch family based on the ditch outline; at this point, the back-end technicians' work is complete. Subsequently, the front-end application personnel will enter data according to the drawing content in the "Value" column in the family type plug-in of the Revit software, and pick the ditch drawing path in the Revit software to generate the required model and data.

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