Ditch Revit model drawing method based on parameterization

Abstract

The invention discloses a parameterization-based ditch type Revit model drawing method. The method comprises the following steps: making a logic rule for generating a ditch type component plane graph in Revit software by a back-end technical support person; the front-end application personnel input data information of the needed channel component into Revit software, and the Revit software generates a model of the channel component based on the logic rule in the step 1; and connecting the channel component models obtained in the step 2 by front-end application personnel according to a channel trend track so as to obtain an integral channel model. The method can meet the requirements of generating channel models with changeable cross sections and elevations along the channel, and also has the characteristics of easiness in mastering, quickness in modeling, smoothness in model and accuracy in feedback.

Description

Technical Field

[0001] The 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, tolerance, and service life of airport runways are related to multiple factors, but the most critical cause of runway damage is still "water". Water is the most destructive factor to runways. The damage to pavement and subgrade is related to the erosion of surface water or groundwater. Water can damage the surface and internal structure of airport runways, reduce the performance of runways, and shorten their service life. Therefore, the importance of drainage to airport runways is self-evident.

[0003] Southeast Asia has abundant rainfall. During the construction of airport runways in the region, the quality of the drainage system directly affects the future use of the runways. With the advancement of technology, BIM technology is currently widely used to design and inspect buildings, and to modify deficiencies or defects, and the same is true for the drainage system of airport runways.

[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 to ensure the construction quality of drainage systems. In order to use BIM technology to deepen the design of ditches and guide construction, 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 numerous 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] In conventional design methods, since Revit software only comes with architectural construction, there are no components that can be directly used for ditch modeling in its initial functions. If you choose a built-in model, the workload is very large and many points need to be modified. Modeling requires a lot of people and time. Especially in the design process of large airports or airports with high-level runways, at least a professional team with several people is required, which takes several months to complete. In this way, not only the cost related to the project is very large, but also the progress of the entire design, deepening and construction will be slowed down. However, if the deepening is not in place, it cannot play the role of pre-discovering problems and guiding construction.

[0006] Therefore, it is necessary to find a method that is different from traditional technology and can quickly draw a ditch model 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, quick modeling, smooth model and accurate feedback.

[0008] In order to achieve the above object, the present invention is achieved in the following ways: A parametric ditch Revit model drawing method, including Step 1: Back-end technical support personnel formulate logical rules for generating plane graphics 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 to obtain the overall ditch model.

[0009] 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 profile to the ditch profile, using the running trajectory of the beam using computer software to produce the family, and drawing the ditch in the field model.

[0010] 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 which, the channel bottom width is derived according to the calculation formula: channel bottom width = channel top width - 2.5 * (top elevation - bottom elevation).

[0011] Furthermore, the above-mentioned parameterized 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.

[0012] Furthermore, in the above-mentioned parameterized 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 two parts: the starting point and the end point; by inputting the key control point elements, the overall ditch model is modeled using the Revit software.

[0013] Finally, the above-mentioned parameterized ditch Revit model drawing method also includes step 4, adding instance parameters into the family type to complete the adaptive family; at this point, the work of the back-end technicians is completed, and 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 drawing path of the ditch in the Revit software to generate the required model and data.

[0014] The overall idea of ​​the above-mentioned parameterized ditch Revit model drawing method proposed by the present invention is: 1. At the back-end technical support level, firstly, according to the characteristic of constantly changing cross-sections, the underlying modeling process is parameterized; subsequently, the front-end modelers use computers to automatically generate the cross-sections of ditches by inputting parameters, thus alleviating the burden on the front-end modelers; secondly, based on the structural characteristics of the components, it is decided to perform parametric transformation on the basis of the beam family and create a new beam family; this makes it easier to adapt to the ditch modeling needs of different ground conditions.

[0015] 2. In the process of parameterization of 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 to put the solution of difficult and painful points in front. Technical support personnel complete the parametric design of the cross-section at the back end to facilitate direct application by front-end modeling personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the shape of a variable-section arc ditch.

[0017] Figure 2 for Figure 1 Cross-sectional changes of the middle ditch. DETAILED DESCRIPTION

[0018] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection requested by the present application.

[0019] like Figure 1 , Figure 2 As shown in FIG. 1 , a parametric ditch Revit model drawing method includes: Step 1: Back-end technical support personnel formulate logical rules for generating plane graphics 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. The Revit software generates a model of the ditch components based on the logical rules described in step 1. The data information includes the ditch bottom elevation, the channel bottom width, and the channel top width. If the channel bottom width is not marked in the middle, it is derived according to the calculation formula: channel bottom width = channel top width - 2.5 * (top elevation - bottom elevation); 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; Step 4. Add instance parameters to the family type to complete the adaptive family. At this point, the work of the back-end technicians is completed. Later, the front-end application personnel will enter data in the "Value" column according to the drawing content in the family type plug-in of the Revit software, and pick up the drawing path of the ditch in the Revit software to generate the required model and data.

[0020] 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 contour data of the ditch, the upper and lower bottom widths of the ditch, and the ditch height.

[0021] 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 key control point elements, the overall ditch model is modeled using Revit software.

[0022] The above-mentioned parametric ditch Revit model drawing method has the following advantages: 1. Simple modeling: Just pick 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".

[0023] 2. Detailed and comprehensive information: Information including length and volume can be automatically counted and combined to facilitate the calculation of engineering quantities, and the results of the engineering quantities obtained are very accurate.

[0024] 3. Checking is quick and convenient: the model is generated by computer using formula control, and you only need to check the input parameters against the drawing; if the generation fails, it can directly reflect that there is a problem with the drawing, which can quickly discover design problems.

[0025] 4. Lowered threshold: More on-site personnel can be mobilized to participate in BIM work. In the application of Phnom Penh New Airport, the original plan required 5 professional modelers to work day and night for 2 months to complete the workload. After adopting this method, 2 modelers built all the families in two weeks, and the project department staff built the entire ditch model in another two weeks. This greatly reduced costs and time.

[0026] 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.

[0027] The above are only embodiments provided for the present application and are not intended to limit the present application. Although the present application is 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 make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A parametric ditch Revit model drawing method, characterized by: include Step 1: Back-end technical support personnel formulate logical rules for generating plane graphics 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.

2. The parametric ditch Revit model drawing method according to claim 1 is characterized by: The logical rules for generating the plane figure of the ditch component referred to in step 1 include: modifying and borrowing the original linear logic of the beam family based on the existing beam family, and the underlying logic is to change the rectangular cross-section of the beam into a ditch cross-section.

3. The parametric ditch Revit model drawing method according to claim 1 is characterized by: In step 2, the data information of the required ditch components including ditch bottom elevation, channel bottom width, and channel top width are input into the Revit software; among which, the channel bottom width is derived according to the calculation formula: channel bottom width = channel top width - 2.5 * (top elevation - bottom elevation).

4. The parametric ditch Revit model drawing method according to claim 1 is characterized by: It also includes the preliminary steps of deepening the ditch drawings, which include eliminating 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.

5. The parametric ditch Revit model drawing method according to claim 1 or 4 is characterized in that: 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.

6. The parametric ditch Revit model drawing method according to claim 1 is characterized by: It also includes step 4, adding instance parameters into the family type to complete the adaptive family, that is, using the underlying logic of the beam family to generate the ditch family based on the ditch contour; at this point, the work of the back-end technicians is completed, and 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 drawing path of the ditch in the Revit software to generate the required model and data.

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