基于SkyLine和SketchUp的数字校园设计与实现

Design and Realization of Virtual Campus Based on Skyline and SketchUp

以山东农业大学北校区为例,以AutoCAD精确绘制的2D数据为基础,利用ArcGIS把有关数据转化为shape文件后精确定义坐标并添加相应的属性数据,使底图满足三维建模的需要;然后充分利用SketchUp快速建模的优点,对不同的建筑建立真实的三维立体模型并完成实景照片贴图;之后将模型导出为*.kmz格式,导入TerraExplorer中并保存为*.FLY工程索引文件,该方法解决模型格式转换以及纹理丢失问题;最后利用Skyline提供的API和ActiveX组件完成北校区地理信息系统的开发。实践证明:在较小范围内实现效果良好,对大区域三维建模和数据管理具有参考价值。

Set the north campus of Shandong Agricultural University as an example and based on precise drawing data of the AutoCAD,the authors defined spatial coordinate accurately after conversion of the used data to shape files by Arc GIS,which made it suitable for building the 3D model. Then builder real 3D model for different buildings and completed the chart let,making full use of the advantage of Sketch Up in rapid modeling. Then exported the modeling as ＊.kmz format,and imported it into Terra Explorer to save as ＊.FLY index file,which avoided the model format conversion and the loss of texture. Finally using the API of Skyline and Active X components to complete the north campus geographic information system development. It is evident that this method is valid in small Scales and has important reference for 3D modeling and data management in large scales.