A method for dynamically creating a roadbed and pavement entity model for a multi-graph platform

Abstract

The application discloses a kind of roadbed pavement entity model dynamic creation methods for multi-graph platform, comprising: the analysis of route design data;Roadbed pavement component cross section template making;The distribution information setting of each component of roadbed pavement;The template setting of each component of roadbed pavement;The basic modeling data calculation and processing of each minimum component of roadbed pavement;Model creation based on certain graphic platform.The application can realize the roadbed pavement entity modeling under different graphic platforms, by component cross section template and component distribution information, combined with route design data, calculate the actual modeling data of component and save, complete model creation under the support of the general modeling method of different graphic platforms with actual modeling data, effectively create roadbed pavement entity model and meet design intent, innovatively decouple modeling process and graphic platform, calculate and save modeling data separately to be called by different graphic platforms, realize the modeling achievement of multiple data formats.

Description

Technical Field

[0001] This invention relates to the field of 3D modeling technology, and in particular to a method for dynamically creating roadbed and pavement solid models for multiple graphics platforms. Background Technology

[0002] In the context of digitalization in the highway engineering industry, the level of model detail largely determines the applicability of model data. Higher-precision models can often be applied to more scenarios at a lower cost. Currently, the development of detailed modeling technology for highway subgrade and pavement is relatively slow. The industry generally uses 3D surfaces to roughly represent the external features of subgrade and pavement, lacking representation of internal or out-of-view engineering structures. Simultaneously, the number of modeling objects is relatively small, particularly lacking 3D representation of drainage systems. Finally, the distribution of subgrade and pavement components is also rather coarse, often using a "one-size-fits-all" approach, which deviates significantly from the design intent. Furthermore, the inconsistency in model file formats due to multiple software and platforms within the industry is a prominent issue. Converting between different file formats to meet application purposes inevitably leads to data loss, hindering the in-depth application of model data. In summary, inaccurate, incomplete, and imprecise subgrade and pavement models, along with data loss resulting from conversions between multiple model file formats, negatively impact subsequent digital applications. These models can only be used to roughly represent the overall design scheme, failing to extract more data value and hindering the digital transformation of the highway industry. Summary of the Invention

[0003] To address the current issues of insufficient precision, inadequate modeling content, and low model accuracy in highway subgrade and pavement professional modeling, and to resolve data loss during multi-format conversion, this invention aims to provide a dynamic creation method for subgrade and pavement solid models across multiple graphics platforms. Based on accurate distribution information of subgrade and pavement components, this method configures accurate component outline templates and calculates a set of component outlines conforming to actual engineering coordinates using algorithms. It then rapidly creates multi-file format 3D solid models of subgrade and pavement for different graphics platforms. Furthermore, this method decouples the data and modeling layers, calculating the necessary modeling data using simple mathematical algorithms even without a graphics platform. Finally, it outputs model files in different formats with minimal cost, satisfying application diversity at the data source, avoiding model file format conversion, and improving the applicability of the model data.

[0004] To achieve the above objectives, the present invention adopts the following technical measures:

[0005] A method for dynamically creating subgrade and pavement solid models for multiple graphics platforms includes the following steps:

[0006] S1. Analyze the horizontal curve data, longitudinal profile data, cross profile data, structure setting information, and key station information of the route in the route design file.

[0007] S2. Based on the subgrade and pavement design drawings, obtain the cross-sectional information of the relevant components and save the cross-sections in the form of standard cross-section templates;

[0008] S3. Based on route design information and roadbed and pavement design principles, automatically calculate the distribution of relevant components of the roadbed and pavement, and generate a distribution table of each component;

[0009] S4. Set the component template for each row in each distribution table in step S3;

[0010] S5. After the component distribution and templates are set, based on the horizontal and vertical data of the route, the distribution station information and the template section data, and using the basic modeling method of lofting as the principle, calculate the actual lofting profile set of each smallest component.

[0011] S6. Using the set of component lofting contours obtained in step S5 as parameters, create a three-dimensional solid model of the component through the platform's lofting modeling method.

[0012] Optionally, in step S1, the structure setting information includes the bridge starting point chainage, the bridge ending point chainage, the bridge center chainage, the bridge name, the tunnel starting point chainage, the tunnel ending point chainage, and the tunnel name.

[0013] The key stationing information includes the stationing at the boundary between slope filling and excavation, the starting stationing at each level of the slope, the starting stationing for retaining and protection, and the starting stationing for the superelevation section.

[0014] Further, in step S1, the list of design lines under the route design file is read to obtain all design line GUIDs. The interpolation station number is determined according to the curvature of the horizontal curve of the route. The engineering coordinate data of all station numbers are determined through the route information, and the coordinate points of each station number are fitted in three-dimensional space to form a three-dimensional curve.

[0015] Furthermore, all the station numbers mentioned include key station numbers and interpolated station numbers.

[0016] Optionally, in step S2, the relevant components include longitudinal seepage trenches, trench foundations, curb stones, earthen shoulder pavement closures, guardrail bases, ultra-high drainage - longitudinal, slope platforms, drainage pipes, retaining structures, drainage ditches, slope top intercepting ditches, platform intercepting ditches, median strips, edge structures, and side ditches.

[0017] The standard section template is organized in the form of a point sequence, and the section information of the component is described by the lateral and longitudinal offset of the subsequent point relative to the previous point.

[0018] The longitudinal seepage trenches, ditch foundations, curb stones, earthen shoulder pavement closures, guardrail bases, slope platforms, retaining structures, drainage ditches, slope top intercepting ditches, platform intercepting ditches, and side ditches are all provided by separate templates, which directly describe their cross-sectional information.

[0019] The ultra-high drainage longitudinal, separation zone, and edge structure are composite templates, which include some individual templates and cross-sectional information of the structure itself.

[0020] Furthermore, the relevant components also include pavement structure and slope protection. The standard section template of the pavement structure is defined by the hierarchical class and the current layer type, and the standard section template of the slope protection is defined by the slope type. Neither involves geometric parameters.

[0021] Optionally, in step S3, the roadbed aspect includes:

[0022] ① Roadbed protection distribution: Based on the structure distribution information in the route design information, the slope fill-cut boundary station number and the starting station number of each level of slope, the information is organized in the form of a table, divided into rows according to fill, cut, bridge and tunnel, and each fill or cut is further subdivided according to the slope level. Each row is marked with the starting station number and the ending station number to form an initial segmentation table.

[0023] ② Distribution of roadbed intercepting ditches: Based on the roadbed protection distribution table, no adjustments are made;

[0024] ③ Distribution of drainage ditches and side ditches: Based on the distribution information of structures and the chainage of slope filling and cutting in the route design information, the structures are organized in tabular form, with each row indicating the starting chainage and the ending chainage to form an initial segmentation table;

[0025] ④ Maintenance step distribution: Based on the drainage ditch and side ditch distribution table, set the step layout station number in each row;

[0026] ⑤ Distribution of rapid flow channels: Based on the information of structures and the cut-fill boundary, the sections that meet the conditions for setting up rapid flow channels are determined according to the ratio of slope height to slope length exceeding a predetermined threshold.

[0027] ⑥ Special roadbed treatment distribution: The start and end point chainages need to be set manually;

[0028] ⑦ Roadbed earthwork distribution: Start and end station numbers need to be manually set;

[0029] ⑧ Monitoring project distribution: The start and end point chainages need to be manually set.

[0030] Furthermore, in step S3, the road surface aspect includes:

[0031] ① Ultra-high drainage - longitudinal distribution: Based on ultra-high segment data, each row indicates the start and end station numbers;

[0032] ② Ultra-high drainage - lateral distribution: Based on the ultra-high drainage - longitudinal distribution table, the lateral drainage layout station number is automatically calculated for each row based on the lateral drainage layout distance;

[0033] ③ Road surface, median strip and edge distribution: Based on the structure setting information and the slope fill and cut boundary chainage information, the road surface is divided into segments. On this basis, the superelevation drainage-longitudinal distribution information is added for further segmentation. The transition sections near the start and end points of bridges and tunnels are considered for further segmentation. The start and end chainages are noted in each row.

[0034] ④ Median zone lateral drainage distribution: Based on the complete start and end station numbers of the route and the superelevation drainage-longitudinal distribution information, the initial segmentation of the median zone lateral drainage is formed. On this basis, it is determined whether the current segment belongs to the superelevation segment. If it belongs to the superelevation segment, the superelevation drainage-lateral distribution information is extracted and subdivided. If it does not belong to the superelevation segment, the lateral drainage station number is automatically calculated according to the lateral drainage design principle, and the start and end station numbers are marked in each row.

[0035] Optionally, in step S4, the roadbed aspect includes:

[0036] ① Roadbed protection distribution: Each row is equipped with corresponding slope protection templates, retaining protection templates, and slope platform templates;

[0037] ② Distribution of roadbed intercepting ditches: Set up platform intercepting ditch templates and slope top intercepting ditch templates for each row. When a row has retaining protection, it is necessary to consider whether there are platform intercepting ditches and slope top intercepting ditches.

[0038] ③ Distribution of drainage ditches and side ditches: Set up templates for side ditches or drainage ditches in each row;

[0039] ④ Inspection step distribution: Set the step template for each row;

[0040] ⑤ Rapid flow channel distribution: Set the rapid flow channel template for each row;

[0041] ⑥ Special roadbed treatment distribution: No templates are set;

[0042] ⑦ Roadbed earthwork distribution: No formwork is required;

[0043] ⑧ Monitoring project distribution: No template is set.

[0044] Further, in step S4, the road surface aspect includes:

[0045] ① Ultra-high drainage - longitudinal distribution: The longitudinal formwork for ultra-high drainage is integrated into the median strip formwork; no formwork is set here.

[0046] ② Extra-high drainage - lateral distribution: Install drainage pipe templates;

[0047] ③ Road surface and edge distribution: Set up median strip templates, road surface structure templates, and edge structure templates;

[0048] ④ Transverse drainage distribution in the median strip: Install drainage pipe templates.

[0049] Compared with the prior art, the present invention has the following main technical advantages:

[0050] 1. In this invention, all the data required for modeling the components are derived based on the most basic mathematical algorithms. Without relying on the existing functions of the graphics platform, it can quickly create three-dimensional models on different platforms, which increases the variety of model file formats from the source and improves the usability of model data.

[0051] 2. In step S2 of this invention, the outline template description of all components adopts a point sequence method, describing the relative coordinates of the next point based on the previous point. Most components belonging to the roadbed and pavement profession have diverse design forms and numerous irregular structures. Compared with traditional parametric design, this method is better suited for the roadbed and pavement profession, and can describe the cross-sectional outline of the components in the fastest, most direct, and most comprehensive way.

[0052] 3. The distribution of all components in step S3 of this invention is automatically calculated based on basic design principles. The calculation process takes into account the rationality between different components, eliminates the situation in traditional design where the distribution of different components does not consider whether there is a conflict, improves the rigor of the data, and improves the accuracy of the three-dimensional model. Attached Figure Description

[0053] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 This is a schematic diagram describing the longitudinal seepage ditch template in step S2 of Embodiment 1 of the present invention. The descriptions of the ditch foundation, curbstone, pavement enclosure, guardrail base, slope platform, retaining structure, drainage ditch, slope top intercepting ditch, platform intercepting ditch, and side ditch template are similar to those of the longitudinal seepage ditch template.

[0055] Figure 2 This is a schematic diagram of the ultra-high drainage-longitudinal template in step S2 of embodiment 1 of the present invention;

[0056] Figure 3 This is a schematic diagram of the edge structure template in step S2 of embodiment 1 of the present invention;

[0057] Figure 4This is a schematic diagram of the mid-segment template in step S2 of embodiment 1 of the present invention;

[0058] Figure 5 This is a schematic diagram of a slope protection template that does not involve geometric parameters in step S2 of embodiment 1 of the present invention;

[0059] Figure 6 This is a schematic diagram of a road surface structure template that does not involve geometric parameters in step S2 of embodiment 1 of the present invention;

[0060] Figure 7 This is the roadbed protection distribution table in step S3 of embodiment 1 of the present invention;

[0061] Figure 8 This is a table showing the distribution of road surface and edge structure in step S3 of embodiment 1 of the present invention;

[0062] Figure 9 This refers to the table for setting up the roadbed protection template in step S4 of embodiment 1 of the present invention;

[0063] Figure 10 This is a table for setting the road surface and edge templates in step S4 of embodiment 1 of the present invention. Detailed Implementation

[0064] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0065] Example 1:

[0066] A method for dynamically creating subgrade and pavement solid models for multiple graphics platforms includes the following steps:

[0067] S1. Through the route design software - route expert system - corresponding data interface, parse the horizontal curve data, longitudinal profile data, cross profile data, structure setting information and key station information of the route in the route design file.

[0068] The configuration information of the structure includes the bridge starting point chainage, the bridge ending point chainage, the bridge center chainage, the bridge name, the tunnel starting point chainage, the tunnel ending point chainage, and the tunnel name.

[0069] The key stationing information includes the stationing at the boundary between slope filling and excavation, the starting stationing at each level of the slope, the starting stationing for retaining and protection, and the starting stationing for the superelevation section.

[0070] Read all design lines from the route design file and obtain all design line GUIDs. Determine the interpolation station numbers based on the curvature of the horizontal curves of the route; that is, the greater the curvature of the horizontal curve, the denser the interpolation station numbers; and the smaller the curvature of the horizontal curve, the sparser the interpolation station numbers. Determine the engineering coordinate data of all these station numbers (key station numbers and interpolation station numbers) through the route information, and fit the coordinate points of each station number in three-dimensional space to form a three-dimensional curve, thus forming a three-dimensional spatial representation of the route. This provides a benchmark for the positioning of subsequent subgrade and pavement modeling elements in three-dimensional space.

[0071] S2. Based on the roadbed and pavement design drawings, obtain the cross-sectional information of the relevant components and save the cross-sections in the form of standard cross-section templates.

[0072] The relevant components include longitudinal seepage trenches, ditch foundations, curb stones, earthen shoulder paving and sealing, guardrail bases, ultra-high drainage - longitudinal, slope platforms, drainage pipes, retaining structures, drainage ditches, slope top intercepting ditches, platform intercepting ditches, median strips, edge structures, and side ditches.

[0073] The standard section templates are organized in a point sequence, describing the section information of components by the lateral and longitudinal offset of each subsequent point relative to the preceding point. Among them, longitudinal seepage ditches, ditch foundations, curb stones, earthen shoulder paving closures, guardrail bases, slope platforms, retaining structures, drainage ditches, slope top intercepting ditches, platform intercepting ditches, and side ditches are individual templates, directly describing their section information, such as... Figure 1 As shown; the ultra-high drainage system – longitudinal section, median strip, and edge structure – uses composite templates, including some individual templates and cross-sectional information of the structures they form, such as... Figure 2 , Figure 3 , Figure 4 As shown.

[0074] The relevant components also include relatively specialized pavement structures and slope protection. The standard cross-sectional templates for pavement structures are defined by layer class and current layer type, while the standard cross-sectional templates for slope protection are defined by slope type; neither involves geometric parameters. The geometric parameters of slope protection are derived from cross-sectional data; that is, the slope protection modeling parameters at a certain station are reflected in real-time by the slope line data in the cross-sectional data of the current station. Figure 5 As shown. The geometric parameters of the pavement structure are derived through the relationship between the edge structure and the median strip. That is, after the standard section templates of the edge structure and the median strip are determined, their spatial positioning is completed under the reference of the three-dimensional line determined by the route. The outer contour of the median strip standard section template and the inner contour of the edge structure standard section template together form the geometric parameters required for pavement modeling, such as... Figure 6 As shown.

[0075] S3. Based on route design information and roadbed and pavement design principles, automatically calculate the distribution of relevant components of the roadbed and pavement, and generate a distribution table of each component.

[0076] Specifically regarding the roadbed: ① Roadbed protection distribution. This section is organized in tabular form based on the structure distribution information in step S1, the fill-cut boundary station numbers, and the starting station numbers of each slope level. It is divided into rows according to fill, cut, bridges, and tunnels. Each fill or cut group is further subdivided according to slope level. Each row indicates the starting and ending station numbers, such as... Figure 7 The distribution is as follows: ② Distribution of roadbed intercepting ditches, based on the roadbed protection distribution table; ③ Distribution of drainage ditches and side ditches, organized in tabular form according to the structure distribution information and the fill-cut boundary station numbers in the route design information, with each row indicating the starting and ending station numbers; ④ Distribution of maintenance steps, based on the drainage ditch and side ditch distribution table, with station numbers set for each step arrangement in each row; ⑤ Distribution of rapid flow channels, based on structure information and fill-cut boundary information, determining the sections that meet the rapid flow channel setting conditions according to the slope height to slope length ratio exceeding a predetermined threshold; ⑥ Distribution of special roadbed treatments, requiring manual setting of starting and ending station numbers; ⑦ Distribution of roadbed earthwork, requiring manual setting of starting and ending station numbers; ⑧ Distribution of monitoring projects, requiring manual setting of starting and ending station numbers.

[0077] Specifically regarding the road surface: ① Superelevation drainage - longitudinal distribution: This section is based on superelevation segment data, with each row indicating the start and end station numbers; ② Superelevation drainage - lateral distribution: This section is based on the superelevation drainage - longitudinal distribution table, with each row automatically calculating the lateral drainage layout station numbers based on the lateral drainage layout distance; ③ Road surface, median strip, and edge distribution: This section is segmented based on structure setting information and slope fill-cut boundary station information. Superelevation drainage - longitudinal distribution information is added for more detailed segmentation, and transition sections near the start and end points of bridges and tunnels are further segmented. Each row indicates the start and end station numbers, such as... Figure 8 As shown; ④ Median strip lateral drainage distribution: This part is based on the complete start and end station numbers of the route combined with the superelevation drainage-longitudinal distribution information to form the initial segment of the median strip lateral drainage. On this basis, it is determined whether the current segment belongs to the superelevation segment. If it belongs to the superelevation segment, the superelevation drainage-lateral distribution information is extracted and subdivided. If it does not belong to the superelevation segment, the lateral drainage station number is automatically calculated according to the lateral drainage design principle (generally arranged at 40m intervals, the interval can be adjusted according to the actual situation). The start and end station numbers are marked in each row.

[0078] S4. Set the component template for each row in each distribution table in step S3.

[0079] Specifically regarding the roadbed: ① Roadbed protection distribution: Each row in this section is equipped with corresponding slope protection templates, retaining protection templates, and slope platform templates, such as... Figure 9 As shown; ② Distribution of roadbed intercepting ditches, this section sets up platform intercepting ditch templates and slope top intercepting ditch templates for each row. When a row has retaining protection, it is necessary to additionally consider whether there are platform intercepting ditches and slope top intercepting ditches; ③ Distribution of drainage ditches and side ditches, this section sets up side ditch or drainage ditch templates for each row; ④ Distribution of maintenance steps, this section sets up step templates for each row; ⑤ Distribution of rapid flow channels, this section sets up rapid flow channel templates for each row; ⑥ Distribution of special roadbed treatments, no templates are set up due to their special intermediate process state; ⑦ Distribution of roadbed earthwork, no templates are set up due to their special intermediate process state; ⑧ Distribution of monitoring projects, no templates are set up due to their special intermediate process state.

[0080] Specifically regarding the road surface: ① Superelevation drainage - longitudinal distribution: This distribution information mainly provides the data foundation for subsequent distribution. The longitudinal template for superelevation drainage is integrated into the median strip template; no template is set here. ② Superelevation drainage - transverse distribution: Drainage pipe templates are set in this section. ③ Road surface and edge distribution: Median strip templates, road surface structure templates, and edge structure templates are set in this section, such as... Figure 10 As shown; ④ The median strip has a transverse drainage distribution, and drainage pipe templates are installed in this part;

[0081] S5. After the component distribution and templates are set, based on the horizontal and vertical data of the route, the distribution station information and the template cross-section data, and using the basic modeling method of setting out as the principle, calculate the actual setting out contour set of each smallest component, that is, the setting out contour set with actual engineering coordinates. These setting out contour sets serve as the data support for subsequent modeling.

[0082] S6. Using the set of component lofting contours obtained in step S5 as parameters, create a three-dimensional solid model of the component through the platform's lofting modeling method.

[0083] The above description is merely a specific embodiment of the present invention, and the scope of protection of the present invention is not limited thereto. Any transformations or substitutions that can be conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for dynamically creating subgrade and pavement solid models for multiple graphics platforms, characterized in that, Includes the following steps: S1. Analyze the horizontal curve data, longitudinal profile data, cross profile data, structure setting information, and key station information of the route in the route design file. The structure setting information includes the bridge starting point chainage, bridge ending point chainage, bridge center chainage, bridge name, tunnel starting point chainage, tunnel ending point chainage, and tunnel name; The key stationing information includes the stationing at the boundary between slope filling and excavation, the starting stationing at each level of the slope, the starting stationing for retaining and protection, and the starting stationing for the superelevation section. Read the list of design lines in the route design file, obtain all design line GUIDs, determine the interpolation station number based on the curvature of the horizontal curve of the route, determine the engineering coordinate data of all station numbers through the route information, and fit the coordinate points of each station number in three-dimensional space to form a three-dimensional curve. S2. Based on the subgrade and pavement design drawings, obtain the cross-sectional information of the relevant components and save the cross-sections in the form of standard cross-section templates; The relevant components include longitudinal seepage trenches, ditch foundations, curb stones, earthen shoulder paving and sealing, guardrail bases, ultra-high drainage - longitudinal, slope platforms, drainage pipes, retaining structures, drainage ditches, slope top intercepting ditches, platform intercepting ditches, median strips, edge structures, and side ditches. The relevant components also include road surface structure and slope protection; S3. Based on route design information and roadbed and pavement design principles, automatically calculate the distribution of relevant components of the roadbed and pavement, and generate a distribution table of each component; The roadbed includes: ① Roadbed protection distribution: Based on the structure distribution information in the route design information, the slope fill-cut boundary station number and the starting station number of each level of slope, the information is organized in the form of a table, divided into rows according to fill, cut, bridge and tunnel, and each fill or cut is further subdivided according to the slope level. Each row is marked with the starting station number and the ending station number to form an initial segmentation table. ② Distribution of roadbed intercepting ditches: Based on the roadbed protection distribution table, no adjustments are made; ③ Distribution of drainage ditches and side ditches: Based on the distribution information of structures and the chainage of slope filling and cutting in the route design information, the structures are organized in tabular form, with each row indicating the starting chainage and the ending chainage to form an initial segmentation table; ④ Maintenance step distribution: Based on the drainage ditch and side ditch distribution table, set the step layout station number in each row; ⑤ Distribution of rapid flow channels: Based on the information of structures and the cut-fill boundary, the sections that meet the conditions for setting up rapid flow channels are determined according to the ratio of slope height to slope length exceeding a predetermined threshold. ⑥ Special roadbed treatment distribution: The start and end point chainages need to be set manually; ⑦ Roadbed earthwork distribution: Start and end station numbers need to be manually set; ⑧ Monitoring project distribution: Start and end point station numbers need to be manually set; Road surface aspects include: ① Ultra-high drainage - longitudinal distribution: Based on ultra-high segment data, each row indicates the start and end station numbers; ② Ultra-high drainage - lateral distribution: Based on the ultra-high drainage - longitudinal distribution table, the lateral drainage layout station number is automatically calculated for each row based on the lateral drainage layout distance; ③ Road surface, median strip and edge distribution: Based on the structure setting information and the slope fill and cut boundary chainage information, the road surface is divided into segments. On this basis, the superelevation drainage-longitudinal distribution information is added for further segmentation. The transition sections near the start and end points of bridges and tunnels are considered for further segmentation. The start and end chainages are noted in each row. ④ Median zone lateral drainage distribution: Based on the complete start and end station numbers of the route and the superelevation drainage-longitudinal distribution information, the initial segmentation of the median zone lateral drainage is formed. On this basis, it is determined whether the current segment belongs to the superelevation segment. If it belongs to the superelevation segment, the superelevation drainage-lateral distribution information is extracted and subdivided. If it does not belong to the superelevation segment, the lateral drainage station number is automatically calculated according to the lateral drainage design principle. The start and end station numbers are marked in each row. S4. Set the component template for each row in each distribution table in step S3; S5. After the component distribution and templates are set, based on the horizontal and vertical data of the route, the distribution station information and the template section data, and using the basic modeling method of lofting as the principle, calculate the actual lofting profile set of each smallest component. S6. Using the set of component lofting contours obtained in step S5 as parameters, create a three-dimensional solid model of the component through the platform's lofting modeling method.

2. The method for dynamically creating roadbed and pavement entity models for multiple graphics platforms according to claim 1, characterized in that, All the station numbers mentioned include key station numbers and interpolated station numbers.

3. The method for dynamically creating roadbed and pavement entity models for multiple graphics platforms according to claim 1, characterized in that, In step S2, the standard section template is organized in the form of a point sequence, and the section information of the component is described by the lateral and longitudinal offset of the later point relative to the previous point. The longitudinal seepage trenches, ditch foundations, curb stones, earthen shoulder pavement closures, guardrail bases, slope platforms, retaining structures, drainage ditches, slope top intercepting ditches, platform intercepting ditches, and side ditches are all provided by separate templates, which directly describe their cross-sectional information. The ultra-high drainage longitudinal, separation zone, and edge structure are composite templates, which include some individual templates and cross-sectional information of the structure itself.

4. The method for dynamically creating roadbed and pavement entity models for multiple graphics platforms according to claim 1, characterized in that, The standard section template for the road surface structure is defined by the layer class and the current layer type, and the standard section template for the slope protection is defined by the slope type. Neither involves geometric parameters.

5. The method for dynamically creating roadbed and pavement solid models for multiple graphics platforms according to claim 1, characterized in that, In step S4, the roadbed aspect includes: ① Roadbed protection distribution: Each row is equipped with corresponding slope protection templates, retaining protection templates, and slope platform templates; ② Distribution of roadbed intercepting ditches: Set up platform intercepting ditch templates and slope top intercepting ditch templates for each row. When a row has retaining protection, it is necessary to consider whether there are platform intercepting ditches and slope top intercepting ditches. ③ Distribution of drainage ditches and side ditches: Set up templates for side ditches or drainage ditches in each row; ④ Inspection step distribution: Set the step template for each row; ⑤ Rapid flow channel distribution: Set the rapid flow channel template for each row; ⑥ Special roadbed treatment distribution: No templates are set; ⑦ Roadbed earthwork distribution: No formwork is required; ⑧ Monitoring project distribution: No template is set.

6. The method for dynamically creating roadbed and pavement solid models for multiple graphics platforms according to claim 5, characterized in that, In step S4, the road surface aspect includes: ① Ultra-high drainage - longitudinal distribution: The longitudinal formwork for ultra-high drainage is integrated into the median strip formwork; no formwork is set here. ② Extra-high drainage - lateral distribution: Install drainage pipe templates; ③ Road surface and edge distribution: Set up median strip templates, road surface structure templates, and edge structure templates; ④ Transverse drainage distribution in the median strip: Install drainage pipe templates.

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