CN109558643B - A traffic scene modeling and model single method - Google Patents

A traffic scene modeling and model single method Download PDF

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CN109558643B
CN109558643B CN201811308207.XA CN201811308207A CN109558643B CN 109558643 B CN109558643 B CN 109558643B CN 201811308207 A CN201811308207 A CN 201811308207A CN 109558643 B CN109558643 B CN 109558643B
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tin
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牟瑞芳
向文杰
郑伟皓
周星宇
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Southwest Jiaotong University
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Abstract

The invention discloses a traffic scene modeling and model unitization method, which comprises the following steps: importing: packaging the CAD route map to the GIS, and leading the CAD route map into the CAD map; adding elevation: after the elevation points are collected, point elements are generated, then TIN is generated, and finally the generated TIN is converted into grids; surface interpolation: performing surface interpolation processing on the CAD matched on the map and the created TIN by using an 'interpolation Shape' tool, removing irrelevant elements in the CAD graph during difference, and reserving Polyline elements; generating a scene: and (4) finishing CAD derivation of geographic registration in the GIS system, and generating a scene by using the CAD. The invention carries out scene modeling through the City Engine with a good data interface with the ARCGIS platform and integrates the entity object information into the unique data bearing platform, thereby solving the problems that the dynamic information integration capability is poor, the scene information integration capability is weak for large scenes such as towns and the like, and the construction cost of the information platform is high in the prior art.

Description

一种交通场景建模及模型单体化方法A traffic scene modeling and model single method

技术领域technical field

本发明涉及地理信息系统与City Engine中的交通三维场景建模技术领域,具体为一种交通场景建模及模型单体化方法。The invention relates to the technical field of three-dimensional traffic scene modeling in a geographic information system and a City Engine, in particular to a traffic scene modeling and model singulation method.

背景技术Background technique

随着大数据时代到来,城市规划以及管理需要依托数字化的信息平台对现实中的对象进行分类管理,ARCGIS平台具有强大的地理信息集成功能,其中就涵盖实体对象的地理坐标及高程信息、岩层地质信息、河流走向信息,而实体对象包括建筑、道路、桥梁和隧道等,通过对对象3D数字模型的构建,将此类对象的属性信息进行集成,即可达到对建筑及交通领域的数字化管理,而目前独有美国Auto desk公司可对建筑实体信息进行数字化建模并集成到专用的数据管理平台进行管理,其优点是可视化程度高,可集成信息覆盖面广,模型建立流程化模块化,但其缺点是动态信息集成能力较差,针对如城镇等大型场景的场景信息集成能力较弱,信息化平台搭建成本较高,为此,我们提出了一种交通场景建模及模型单体化方法,以解决上述存在的问题。With the advent of the era of big data, urban planning and management need to rely on a digital information platform to classify and manage objects in reality. The ARCGIS platform has powerful geographic information integration functions, including geographic coordinates and elevation information of physical objects, rock formation geology information and river direction information, while the entity objects include buildings, roads, bridges and tunnels. At present, the unique American Auto desk company can digitally model building entity information and integrate it into a dedicated data management platform for management. The disadvantage is that the dynamic information integration ability is poor, the scene information integration ability for large-scale scenes such as towns is weak, and the construction cost of the information platform is high. Therefore, we propose a traffic scene modeling and model integration method. to solve the above problems.

发明内容SUMMARY OF THE INVENTION

本发明的目的在于提供一种交通场景建模及模型单体化方法,具备搭建信息化平台成本低而且信息集成能力强的优点,解决了现有技术动态信息集成能力较差,针对如城镇等大型场景的场景信息集成能力较弱,信息化平台搭建成本较高的问题。The purpose of the present invention is to provide a traffic scene modeling and model singulation method, which has the advantages of low cost of building an information platform and strong information integration ability, and solves the problem that the dynamic information integration ability of the prior art is poor. The scene information integration capability of large-scale scenes is weak, and the cost of building an information platform is relatively high.

为实现上述目的,本发明提供如下技术方案:一种交通场景建模及模型单体化方法,包括以下步骤:In order to achieve the above purpose, the present invention provides the following technical solutions: a traffic scene modeling and model singulation method, comprising the following steps:

步骤1:导入:封装CAD路线图至GIS,先导入CAD图;Step 1: Import: package the CAD roadmap to GIS, first import the CAD map;

步骤2:添加高程:对高程点进行采集后,生成点要素,再生成TIN,最后对生成的TIN转栅格;Step 2: Add elevation: After collecting elevation points, generate point elements, then generate TIN, and finally convert the generated TIN to raster;

步骤3:表面插值:将匹配在地图上的CAD和创建好的TIN利用“插值Shape”工具,进行表面插值处理,差值时,移除CAD图中无关要素,保留Polyline要素即可;Step 3: Surface interpolation: Use the "Interpolation Shape" tool to perform surface interpolation processing on the CAD matched on the map and the created TIN. When there is a difference, remove the irrelevant elements in the CAD image and keep the Polyline elements;

步骤4:生成场景:GIS系统中完成地理配准的CAD导出,利用CAD生成场景;Step 4: Generate the scene: complete the CAD export of the georeferencing in the GIS system, and use the CAD to generate the scene;

步骤5:参数建模:根据CGA建模规则实现参数建模;Step 5: Parametric modeling: implement parametric modeling according to CGA modeling rules;

步骤6:导入场景:与GIS通信导入模型场景。Step 6: Import the scene: Communicate with the GIS to import the model scene.

优选的,所述在步骤1中具体在ARCGIS PRO软件中新建工程,封装后的文件将保存在该文件夹内,在插入栏中新建地图、新建场景,链接视图,按中心和比例将2D地图和3D场景同步,添加数据,将要封装的CAD图导入新建地图中,在CAD图层工具栏中定义投影,更改CAD文件的空间参考,进行地理配准,适应显示范围,调整源图层使其适应当前的显示范围,将CAD图匹配至当前地图场景,分别在CAD路线图上对应点(虚线圆框范围)添加控制点,再对GIS中对应底图部分添加控制点(地图实现圆框部分),将CAD图与新建地图进行精确配准,地理处理,利用转换工具,将CAD转至地理数据库:把匹配好的CAD图保存,利用“CAD至地理数据库”工具,将其转化为GBD格式。Preferably, in step 1, a new project is specifically created in the ArcGIS PRO software, and the packaged files will be saved in this folder. In the insert column, create a new map, create a new scene, link views, and convert the 2D map according to the center and scale. Synchronize with the 3D scene, add data, import the CAD map to be encapsulated into a new map, define the projection in the CAD layer toolbar, change the spatial reference of the CAD file, perform georeferencing, adapt to the display range, and adjust the source layer to make it Adapt to the current display range, match the CAD map to the current map scene, add control points to the corresponding points (dotted circle frame range) on the CAD route map, and then add control points to the corresponding base map part in the GIS (the map realizes the circle frame part) ), accurately register the CAD map with the new map, perform geoprocessing, and use the conversion tool to transfer the CAD to the geodatabase: save the matched CAD map, and use the "CAD to geodatabase" tool to convert it to GBD format .

优选的,所述在步骤2中具体根据实际官方数据所得点坐标,为采集目标区域的经纬度坐标和高程,并储存至Excel中,利用“XY表转点”工具,生成点要素,在点要素的基础上,使用“创建TIN”工具,生成TIN,在已经创建好的TIN基础上,利用“TIN转栅格”工具,在地图上生成高程源。Preferably, the point coordinates obtained in step 2 specifically according to the actual official data are to collect the latitude and longitude coordinates and elevation of the target area, and store them in Excel, and use the "XY table to point" tool to generate point elements, and in the point elements On the basis of , use the "Create TIN" tool to generate a TIN, and on the basis of the already created TIN, use the "TIN to Raster" tool to generate an elevation source on the map.

优选的,所述在步骤4中具体为首先将GIS系统中完成地理配准的CAD导出至DWG格式文件,利用City Engine将上述文件导入至建模场景中,利用要素转换,将CAD数据转化为可供编辑的平面要素类型。Preferably, in step 4, firstly, the georeferenced CAD in the GIS system is exported to a DWG format file, and the above file is imported into the modeling scene by using City Engine, and the CAD data is converted into a The types of flat features available for editing.

优选的,所述在步骤5中具体为先导入CGA规则文件,根据CGA规则,对道路要素进行编辑,调整路段长度宽度,车道数等信息,针对立交桥类对象,调整其桥墩高度,桥墩间距等,完成要素创建,创建出的模型中若有立交部分桥墩等要素需要修改,可将其选中,并将墩高一项属性设置为0,即可将多余的桥墩删除,根据道路场景的实际情况对要素进行编辑,完成目标要求的分段以及各属性值的修改,直至达到要求并完成场景整体的创建。Preferably, in step 5, the CGA rule file is first imported, and the road elements are edited according to the CGA rule, and the length and width of the road section, the number of lanes and other information are adjusted, and the height of the piers and the spacing between the piers are adjusted for the overpass objects. , complete the element creation. If there are some elements such as piers of the interchange that need to be modified in the created model, you can select them and set the pier height attribute to 0, you can delete the redundant piers, according to the actual situation of the road scene Edit the elements, complete the segmentation required by the target and modify the value of each attribute, until the requirements are met and the overall scene creation is completed.

优选的,所述在步骤6中具体为选择需要导出和保存的场景模型保存至指定文件夹,将上述保存文件加载至ARCGIS PRO平台,即完成场景模型的导入,并且模型道路段已分段成型,包含其基础的属性信息。Preferably, in step 6, the scene model to be exported and saved is selected and saved to a specified folder, and the above saved file is loaded into the ArcGIS PRO platform, that is, the import of the scene model is completed, and the model road segment has been formed in sections , which contains its underlying attribute information.

与现有技术相比,本发明的有益效果是:本发明通过与ARCGIS平台具有良好数据接口的City Engine进行场景建模并将实体对象信息集成到其独有的数据承载平台,解决了现有技术动态信息集成能力较差,针对如城镇等大型场景的场景信息集成能力较弱,信息化平台搭建成本较高的问题,该交通场景建模及模型单体化方法,具备搭建信息化平台成本低而且信息集成能力强的优点,而且数据集成覆盖面广,可涵盖建筑、交通、安全、地质等多方面,并且根据实际需求对各类实体对象进行属性数据添加以及修改,场景模型规模更加庞大,City Engine可对大型城市规模的场景进行建模,并与ARCGIS有良好的数据通信接口,可集成非常庞大的数据规模,规则化建模方案更加灵活,数据集成方案灵活多变,City Engine可针对不同的实体对象,特别是交通领域中的道路、桥梁、隧道等对象进行规则化建模,以为载体,通过对道路的属性信息进行添加即可批量化生成道路和立交等3D场景模型,并且可更具需求对路段进行单元划分,将道路划分为路段单元,以针对每段单元集成不同的属性信息,数据管理平台高度可视化,可根据用户不同需求,显示不同场景信息,数据平台搭建成本远低于主流信息平台搭建成本,针对大型城市交通数据集成管理项目信价比较高,更具竞争力。Compared with the prior art, the beneficial effects of the present invention are: the present invention performs scene modeling and integrates entity object information into its unique data bearing platform through the City Engine having a good data interface with the ARCGIS platform, which solves the problem of existing problems. The technical dynamic information integration ability is poor. For large-scale scenes such as towns and other large-scale scenes, the scene information integration ability is weak, and the cost of building an information platform is high. This traffic scene modeling and model integration method has the cost of building an information platform. It has the advantages of low cost and strong information integration capability, and the data integration covers a wide range, covering construction, transportation, safety, geology, etc., and adding and modifying attribute data for various entity objects according to actual needs, the scale of the scene model is larger, City Engine can model large-scale city-scale scenarios, and has a good data communication interface with ArcGIS. It can integrate very large data scales. The rule-based modeling scheme is more flexible, and the data integration scheme is flexible and changeable. City Engine can target Different entity objects, especially the roads, bridges, tunnels and other objects in the traffic field, are modeled in a regularized manner, as the carrier. By adding the attribute information of the road, 3D scene models such as roads and interchanges can be generated in batches, and can be used as a carrier. It is more necessary to divide the road section into units, and divide the road into road unit units to integrate different attribute information for each segment unit. The data management platform is highly visualized, and can display different scene information according to different needs of users, and the cost of building the data platform is much lower. The cost of building a mainstream information platform is relatively high for large-scale urban traffic data integration management projects and is more competitive.

具体实施方式Detailed ways

下面将通过实施例的方式对本发明作更详细的描述,这些实施例仅是举例说明性的而没有任何对本发明范围的限制。The present invention will be described in more detail below by way of examples, which are merely illustrative and do not limit the scope of the present invention in any way.

本发明提供一种技术方案:一种交通场景建模及模型单体化方法,包括以下步骤:The present invention provides a technical solution: a traffic scene modeling and model singulation method, comprising the following steps:

步骤1:导入:封装CAD路线图至GIS,先导入CAD图;Step 1: Import: package the CAD roadmap to GIS, first import the CAD map;

步骤2:添加高程:对高程点进行采集后,生成点要素,再生成TIN,最后对生成的TIN转栅格;Step 2: Add elevation: After collecting elevation points, generate point elements, then generate TIN, and finally convert the generated TIN to raster;

步骤3:表面插值:将匹配在地图上的CAD和创建好的TIN利用“插值Shape”工具,进行表面插值处理,差值时,移除CAD图中无关要素,保留Polyline要素即可;Step 3: Surface interpolation: Use the "Interpolation Shape" tool to perform surface interpolation processing on the CAD matched on the map and the created TIN. When there is a difference, remove the irrelevant elements in the CAD image and keep the Polyline elements;

步骤4:生成场景:GIS系统中完成地理配准的CAD导出,利用CAD生成场景;Step 4: Generate the scene: complete the CAD export of the georeferencing in the GIS system, and use the CAD to generate the scene;

步骤5:参数建模:根据CGA建模规则实现参数建模;Step 5: Parametric modeling: implement parametric modeling according to CGA modeling rules;

步骤6:导入场景:与GIS通信导入模型场景。Step 6: Import the scene: Communicate with the GIS to import the model scene.

实施例一:Example 1:

导入:封装CAD路线图至GIS,先导入CAD图;添加高程:对高程点进行采集后,生成点要素,再生成TIN,最后对生成的TIN转栅格;表面插值:将匹配在地图上的CAD和创建好的TIN利用“插值Shape”工具,进行表面插值处理,差值时,移除CAD图中无关要素,保留Polyline要素即可;生成场景:GIS系统中完成地理配准的CAD导出,利用CAD生成场景;参数建模:根据CGA建模规则实现参数建模;导入场景:与GIS通信导入模型场景。Import: encapsulate the CAD route map to GIS, first import the CAD map; add elevation: after collecting the elevation points, generate point elements, then generate TIN, and finally convert the generated TIN to raster; surface interpolation: will match on the map CAD and the created TIN use the "Interpolation Shape" tool to perform surface interpolation processing. When the difference is reached, remove the irrelevant elements in the CAD image and keep the Polyline elements; Generate the scene: the CAD export of the georeferencing in the GIS system is completed, Use CAD to generate scenarios; parametric modeling: implement parametric modeling according to CGA modeling rules; import scenarios: communicate with GIS to import model scenarios.

实施例二:Embodiment 2:

在实施例一中,再加上下述工序:In Embodiment 1, the following steps are added:

在步骤1中具体在ARCGIS PRO软件中新建工程,封装后的文件将保存在该文件夹内,在插入栏中新建地图、新建场景,链接视图,按中心和比例将2D地图和3D场景同步,添加数据,将要封装的CAD图导入新建地图中,在CAD图层工具栏中定义投影,更改CAD文件的空间参考,进行地理配准,适应显示范围,调整源图层使其适应当前的显示范围,将CAD图匹配至当前地图场景,分别在CAD路线图上对应点(虚线圆框范围)添加控制点,再对GIS中对应底图部分添加控制点(地图实现圆框部分),将CAD图与新建地图进行精确配准,地理处理,利用转换工具,将CAD转至地理数据库:把匹配好的CAD图保存,利用“CAD至地理数据库”工具,将其转化为GBD格式。In step 1, create a new project in ArcGIS PRO software, the packaged files will be saved in this folder, create a new map, create a new scene, link views in the insert column, synchronize the 2D map and 3D scene according to the center and scale, Add data, import the CAD map to be encapsulated into the new map, define the projection in the CAD layer toolbar, change the spatial reference of the CAD file, perform georeferencing, adapt to the display range, adjust the source layer to fit the current display range , match the CAD map to the current map scene, add control points to the corresponding points (dotted circle frame range) on the CAD route map, and then add control points to the corresponding base map part in the GIS (the map realizes the circle frame part), and add the CAD map Accurate registration with new maps, geoprocessing, and conversion tools to convert CAD to geodatabase: Save the matched CAD map, and use the "CAD to Geodatabase" tool to convert it to GBD format.

导入:封装CAD路线图至GIS,先导入CAD图;添加高程:对高程点进行采集后,生成点要素,再生成TIN,最后对生成的TIN转栅格;表面插值:将匹配在地图上的CAD和创建好的TIN利用“插值Shape”工具,进行表面插值处理,差值时,移除CAD图中无关要素,保留Polyline要素即可;生成场景:GIS系统中完成地理配准的CAD导出,利用CAD生成场景;参数建模:根据CGA建模规则实现参数建模;导入场景:与GIS通信导入模型场景。Import: encapsulate the CAD route map to GIS, first import the CAD map; add elevation: after collecting the elevation points, generate point elements, then generate TIN, and finally convert the generated TIN to raster; surface interpolation: will match on the map CAD and the created TIN use the "Interpolation Shape" tool to perform surface interpolation processing. When the difference is reached, remove the irrelevant elements in the CAD image and keep the Polyline elements; Generate the scene: the CAD export of the georeferencing in the GIS system is completed, Use CAD to generate scenarios; parametric modeling: implement parametric modeling according to CGA modeling rules; import scenarios: communicate with GIS to import model scenarios.

实施例三:Embodiment three:

在实施例二中,再加上下述工序:In embodiment two, add the following procedure:

在步骤2中具体根据实际官方数据所得点坐标,为采集目标区域的经纬度坐标和高程,并储存至Excel中,利用“XY表转点”工具,生成点要素,在点要素的基础上,使用“创建TIN”工具,生成TIN,在已经创建好的TIN基础上,利用“TIN转栅格”工具,在地图上生成高程源。导入:封装CAD路线图至GIS,先导入CAD图;添加高程:对高程点进行采集后,生成点要素,再生成TIN,最后对生成的TIN转栅格;表面插值:将匹配在地图上的CAD和创建好的TIN利用“插值Shape”工具,进行表面插值处理,差值时,移除CAD图中无关要素,保留Polyline要素即可;生成场景:GIS系统中完成地理配准的CAD导出,利用CAD生成场景;参数建模:根据CGA建模规则实现参数建模;导入场景:与GIS通信导入模型场景。In step 2, the point coordinates obtained according to the actual official data are to collect the latitude and longitude coordinates and elevation of the target area, and store them in Excel. Use the "XY table to point" tool to generate point elements. On the basis of point elements, use The "Create TIN" tool generates a TIN, and on the basis of the already created TIN, use the "TIN to Raster" tool to generate an elevation source on the map. Import: encapsulate the CAD route map to GIS, first import the CAD map; add elevation: after collecting the elevation points, generate point elements, then generate TIN, and finally convert the generated TIN to raster; surface interpolation: will match on the map CAD and the created TIN use the "Interpolation Shape" tool to perform surface interpolation processing. When the difference is reached, remove the irrelevant elements in the CAD image and keep the Polyline elements; Generate the scene: the CAD export of the georeferencing in the GIS system is completed, Use CAD to generate scenarios; parametric modeling: implement parametric modeling according to CGA modeling rules; import scenarios: communicate with GIS to import model scenarios.

实施例四:Embodiment 4:

在实施例三中,再加上下述工序:In embodiment three, add the following procedure:

在步骤4中具体为首先将GIS系统中完成地理配准的CAD导出至DWG格式文件,利用City Engine将上述文件导入至建模场景中,利用要素转换,将CAD数据转化为可供编辑的平面要素类型。In step 4, firstly, the georeferenced CAD in the GIS system is exported to a DWG format file, and the above file is imported into the modeling scene by using City Engine, and the CAD data is converted into a plane for editing by using element conversion. Feature type.

导入:封装CAD路线图至GIS,先导入CAD图;添加高程:对高程点进行采集后,生成点要素,再生成TIN,最后对生成的TIN转栅格;表面插值:将匹配在地图上的CAD和创建好的TIN利用“插值Shape”工具,进行表面插值处理,差值时,移除CAD图中无关要素,保留Polyline要素即可;生成场景:GIS系统中完成地理配准的CAD导出,利用CAD生成场景;参数建模:根据CGA建模规则实现参数建模;导入场景:与GIS通信导入模型场景。Import: encapsulate the CAD route map to GIS, first import the CAD map; add elevation: after collecting the elevation points, generate point elements, then generate TIN, and finally convert the generated TIN to raster; surface interpolation: will match on the map CAD and the created TIN use the "Interpolation Shape" tool to perform surface interpolation processing. When the difference is reached, remove the irrelevant elements in the CAD image and keep the Polyline elements; Generate the scene: the CAD export of the georeferencing in the GIS system is completed, Use CAD to generate scenarios; parametric modeling: implement parametric modeling according to CGA modeling rules; import scenarios: communicate with GIS to import model scenarios.

实施例五:Embodiment 5:

在实施例四中,再加上下述工序:In embodiment four, add the following procedure:

在步骤5中具体为先导入CGA规则文件,根据CGA规则,对道路要素进行编辑,调整路段长度宽度,车道数等信息,针对立交桥类对象,调整其桥墩高度,桥墩间距等,完成要素创建,创建出的模型中若有立交部分桥墩等要素需要修改,可将其选中,并将墩高一项属性设置为0,即可将多余的桥墩删除,根据道路场景的实际情况对要素进行编辑,完成目标要求的分段以及各属性值的修改,直至达到要求并完成场景整体的创建。In step 5, firstly import the CGA rule file, edit the road elements according to the CGA rules, adjust the length and width of the road section, the number of lanes and other information, and adjust the height of the piers and the spacing of the piers for the overpass objects, and complete the element creation. If there are some elements such as bridge piers in the created model that need to be modified, you can select them and set the pier height attribute to 0, you can delete the redundant piers, and edit the elements according to the actual situation of the road scene. Complete the segmentation required by the target and the modification of each attribute value until the requirements are met and the overall creation of the scene is completed.

导入:封装CAD路线图至GIS,先导入CAD图;添加高程:对高程点进行采集后,生成点要素,再生成TIN,最后对生成的TIN转栅格;表面插值:将匹配在地图上的CAD和创建好的TIN利用“插值Shape”工具,进行表面插值处理,差值时,移除CAD图中无关要素,保留Polyline要素即可;生成场景:GIS系统中完成地理配准的CAD导出,利用CAD生成场景;参数建模:根据CGA建模规则实现参数建模;导入场景:与GIS通信导入模型场景。Import: encapsulate the CAD route map to GIS, first import the CAD map; add elevation: after collecting the elevation points, generate point elements, then generate TIN, and finally convert the generated TIN to raster; surface interpolation: will match on the map CAD and the created TIN use the "Interpolation Shape" tool to perform surface interpolation processing. When the difference is reached, remove the irrelevant elements in the CAD image and keep the Polyline elements; Generate the scene: the CAD export of the georeferencing in the GIS system is completed, Use CAD to generate scenarios; parametric modeling: implement parametric modeling according to CGA modeling rules; import scenarios: communicate with GIS to import model scenarios.

实施例六:Embodiment 6:

在实施例五中,再加上下述工序:In embodiment five, add the following procedure:

在步骤6中具体为选择需要导出和保存的场景模型保存至指定文件夹,将上述保存文件加载至ARCGIS PRO平台,即完成场景模型的导入,并且模型道路段已分段成型,包含其基础的属性信息。In step 6, the scene model to be exported and saved is selected and saved to the specified folder, and the above saved file is loaded into the ARCGIS PRO platform, that is, the import of the scene model is completed, and the model road segment has been formed in sections, including its basic property information.

导入:封装CAD路线图至GIS,先导入CAD图;添加高程:对高程点进行采集后,生成点要素,再生成TIN,最后对生成的TIN转栅格;表面插值:将匹配在地图上的CAD和创建好的TIN利用“插值Shape”工具,进行表面插值处理,差值时,移除CAD图中无关要素,保留Polyline要素即可;生成场景:GIS系统中完成地理配准的CAD导出,利用CAD生成场景;参数建模:根据CGA建模规则实现参数建模;导入场景:与GIS通信导入模型场景。Import: encapsulate the CAD route map to GIS, first import the CAD map; add elevation: after collecting the elevation points, generate point elements, then generate TIN, and finally convert the generated TIN to raster; surface interpolation: will match on the map CAD and the created TIN use the "Interpolation Shape" tool to perform surface interpolation processing. When the difference is reached, remove the irrelevant elements in the CAD image and keep the Polyline elements; Generate the scene: the CAD export of the georeferencing in the GIS system is completed, Use CAD to generate scenarios; parametric modeling: implement parametric modeling according to CGA modeling rules; import scenarios: communicate with GIS to import model scenarios.

综上所述:该交通场景建模及模型单体化方法,通过与ARCGIS平台具有良好数据接口的City Engine进行场景建模并将实体对象信息集成到其独有的数据承载平台,解决了现有技术动态信息集成能力较差,针对如城镇等大型场景的场景信息集成能力较弱,信息化平台搭建成本较高的问题,该交通场景建模及模型单体化方法,具备搭建信息化平台成本低而且信息集成能力强的优点,而且数据集成覆盖面广,可涵盖建筑、交通、安全、地质等多方面,并且根据实际需求对各类实体对象进行属性数据添加以及修改,场景模型规模更加庞大,City Engine可对大型城市规模的场景进行建模,并与ARCGIS有良好的数据通信接口,可集成非常庞大的数据规模,规则化建模方案更加灵活,数据集成方案灵活多变,City Engine可针对不同的实体对象,特别是交通领域中的道路、桥梁、隧道等对象进行规则化建模,以为载体,通过对道路的属性信息进行添加即可批量化生成道路和立交等3D场景模型,并且可更具需求对路段进行单元划分,将道路划分为路段单元,以针对每段单元集成不同的属性信息,数据管理平台高度可视化,可根据用户不同需求,显示不同场景信息,数据平台搭建成本远低于主流信息平台搭建成本,针对大型城市交通数据集成管理项目信价比较高,更具竞争力。To sum up: the traffic scene modeling and model integration method, through the City Engine with the ARCGIS platform has a good data interface to model the scene and integrate the entity object information into its unique data bearing platform, to solve the problem of the current situation. There are technical dynamic information integration capabilities are poor, for large-scale scenes such as towns and other scene information integration capabilities are weak, and the cost of building an information platform is high. This traffic scene modeling and model integration method has the ability to build an information platform. The advantages of low cost and strong information integration capability, and the data integration coverage is wide, covering construction, transportation, safety, geology, etc., and adding and modifying attribute data for various entity objects according to actual needs, the scale of the scene model is even larger. , City Engine can model large-scale city-scale scenarios, and has a good data communication interface with ARCGIS, which can integrate a very large data scale. The rule-based modeling scheme is more flexible, and the data integration scheme is flexible and changeable. City Engine can Regular modeling is carried out for different entity objects, especially roads, bridges, tunnels and other objects in the field of transportation. As a carrier, 3D scene models such as roads and interchanges can be generated in batches by adding attribute information of roads, and The road section can be divided into units according to the needs, and the road can be divided into road section units to integrate different attribute information for each section unit. The data management platform is highly visualized and can display different scene information according to different needs of users. The cost of building a data platform is long. It is lower than the construction cost of mainstream information platforms, and it is more competitive for large-scale urban traffic data integration management projects.

尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1.一种交通场景建模及模型单体化方法,其特征在于:包括以下步骤:1. a traffic scene modeling and model singulation method, is characterized in that: comprise the following steps: 步骤1:导入:封装CAD路线图至GIS,先导入CAD图;具体在ARCGIS PRO软件中新建工程,封装后的文件将保存在该文件的文件夹内,在插入栏中新建地图、新建场景,链接视图,按中心和比例将2D地图和3D场景同步,添加数据,将要封装的CAD图导入新建地图中,在CAD图层工具栏中定义投影,更改CAD文件的空间参考,进行地理配准,适应显示范围,调整源图层使其适应当前的显示范围,将CAD图匹配至当前地图场景,分别在CAD路线图上对应点添加控制点,再对GIS中对应底图部分添加控制点,将CAD图与新建地图进行精确配准,地理处理,利用转换工具,将CAD转至地理数据库:把匹配好的CAD图保存,利用“CAD至地理数据库”工具,将其转化为GBD格式;Step 1: Import: package the CAD roadmap to GIS, and import the CAD map first; specifically, create a new project in ArcGIS PRO software, the packaged file will be saved in the folder of the file, create a new map and create a new scene in the insert column, Link views, synchronize 2D maps and 3D scenes by center and scale, add data, import CAD drawings to be packaged into new maps, define projections in the CAD layers toolbar, change the spatial reference of CAD files, perform georeferencing, Adapt to the display range, adjust the source layer to make it fit the current display range, match the CAD map to the current map scene, add control points to the corresponding points on the CAD route map, and then add control points to the corresponding base map in the GIS, The CAD map and the new map are accurately registered, geoprocessed, and the CAD is transferred to the geodatabase using the conversion tool: save the matched CAD map, and use the "CAD to geodatabase" tool to convert it to GBD format; 步骤2:添加高程:对高程点进行采集后,生成点要素,再生成TIN,最后对生成的TIN转栅格;Step 2: Add elevation: After collecting elevation points, generate point elements, then generate TIN, and finally convert the generated TIN to raster; 步骤3:表面插值:将匹配在地图上的CAD和创建好的TIN利用“插值Shape”工具,进行表面插值处理,差值时,移除CAD图中无关要素,保留Polyline要素即可;Step 3: Surface interpolation: Use the "Interpolation Shape" tool to perform surface interpolation processing on the CAD matched on the map and the created TIN. When there is a difference, remove the irrelevant elements in the CAD image and keep the Polyline elements; 步骤4:生成场景:GIS系统中完成地理配准的CAD导出,利用CAD生成场景;具体为首先将GIS系统中完成地理配准的CAD导出至DWG格式文件,利用City Engine将上述文件导入至建模场景中,利用要素转换,将CAD数据转化为可供编辑的平面要素类型;Step 4: Generate the scene: The CAD export of the georeferencing in the GIS system is completed, and the CAD is used to generate the scene; specifically, the georeferencing CAD in the GIS system is firstly exported to the DWG format file, and the above file is imported into the building using the City Engine. In the model scene, use element conversion to convert CAD data into a plane element type that can be edited; 步骤5:参数建模:根据CGA建模规则实现参数建模;Step 5: Parametric modeling: implement parametric modeling according to CGA modeling rules; 步骤6:导入场景:与GIS通信导入模型场景。Step 6: Import the scene: Communicate with the GIS to import the model scene. 2.根据权利要求1所述的一种交通场景建模及模型单体化方法,其特征在于:所述步骤2中具体根据实际官方数据所得点坐标,作为采集目标区域的经纬度坐标和高程,并储存至Excel中,利用“XY表转点”工具,生成点要素,在点要素的基础上,使用“创建TIN”工具,生成TIN,在已经创建好的TIN基础上,利用“TIN转栅格”工具,在地图上生成高程源。2. a kind of traffic scene modeling according to claim 1 and the model singulation method, it is characterized in that: in described step 2, the point coordinates obtained specifically according to actual official data, as the longitude and latitude coordinates and elevation of the collection target area, And save it in Excel, use the "XY table to point" tool to generate point elements, on the basis of point elements, use the "Create TIN" tool to generate TINs, and on the basis of the already created TINs, use "TIN to grid" Grid tool to generate an elevation source on the map. 3.根据权利要求1所述的一种交通场景建模及模型单体化方法,其特征在于:所述- 步骤5中具体为先导入CGA规则文件,根据CGA规则,对道路要素进行编辑,调整路段长度宽度,车道数信息,针对立交桥类对象,调整其桥墩高度,桥墩间距,完成要素创建,创建出的模型中若有立交部分桥墩要素需要修改,可将其选中,并将墩高一项属性设置为0,即可将多余的桥墩删除,根据道路场景的实际情况对要素进行编辑,完成目标要求的分段以及各属性值的修改,直至达到要求并完成场景整体的创建。3. A kind of traffic scene modeling and model singulation method according to claim 1, it is characterized in that: in described-step 5, specifically, import CGA rule file first, according to CGA rule, edit road element, Adjust the length and width of the road section, the number of lanes information, and adjust the height of the piers and the spacing of the piers for the overpass objects, and complete the element creation. If there are some pier elements in the created model that need to be modified, you can select them and set the pier height to one. If the item attribute is set to 0, the redundant piers can be deleted, the elements can be edited according to the actual situation of the road scene, the segmentation required by the target and the modification of each attribute value can be completed, until the requirements are met and the overall scene creation is completed. 4.根据权利要求1所述的一种交通场景建模及模型单体化方法,其特征在于:所述- 步骤6中具体为选择需要导出和保存的场景模型保存至指定文件夹,将上述保存文件加载至ARCGIS PRO平台,即完成场景模型的导入,并且模型道路段已分段成型,包含其基础的属性信息。4. A traffic scene modeling and model singulation method according to claim 1, characterized in that: in step 6, specifically, the scene model to be exported and saved is selected and saved to a designated folder, and the above-mentioned The saved file is loaded into the ArcGIS PRO platform, that is, the import of the scene model is completed, and the model road segment has been formed in sections, including its basic attribute information.
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