基于铁路动车所“BIM+GIS”模型配色规则研究

Research on Color Matching Rules Based on"BIM+GIS"Model of Railway EMU Depot

铁路工程具有专业多、工艺复杂、体量大的特点,一条长大铁路往往长达几百甚至上千公里,如此大的体量很难用BIM软件将其空间信息全部展示,故通常将BIM模型转入到GIS中来解决。BIM模型通常采用中间格式文件来导入到GIS平台中,而在这个过程中往往会出现模型信息的丢失。模型配色信息是区分设备模型及保证展示效果的重要手段,为测试BIM模型导入到GIS中配色信息的丢失及异常的情况,文章以主流BIM软件3D EXPERIENCE和GIS软件SuperMap为基础,3DXML为中间格式文件,以盐通铁路南通动车所设备设施为例,探究在此过程中模型配色信息的损失情况,研究表明:3D EXPERIENCE及SuperMap中颜色定义优先级存在较大差异,这是模型导入到SuperMap平台中发生颜色丢失及异常的主要原因,为保证3D EXPERIENCE及SuperMap中配色显示统一,通常要在模型的Feature级、PartBody/Body级定义颜色。

Railway engineering usually has the characteristics of multiple professions,complex process and large volume.A main rail line is often hundreds or even thousands of kilometers long,and it is difficult to use BIM software to display all the spatial information of such a large volume.In order to solve this problem,BIM model is usually transferred to GIS platform.BIM models use intermediate format files to import into the GIS platform,and in this process,model information is often lost.The model color information is an important means to distinguish equipment and facilities and ensure display effects.In order to test the loss and abnormality of the color information in the BIM model transferred to the GIS platform,This paper is based on the mainstream BIM software 3D EXPERIENCE and the GIS software SuperMap.3DXML is an intermediate format file.Taking the equipment and facilities of Nantong EMUD of Yantong Railway as an example,this paper explores the loss of color information of the model in this process.The results show that there is a big difference in the priority of color definition in 3D EXPERIENCE and SuperMap,which is the main reason for color loss and abnormality when the model is imported into SuperMap platform.In order to ensure uniform color display in 3D EXPERIENCE and SuperMap,it is recommended to define colors at the Feature and PartBody/Body levels.