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基于模型的设计
视线分析工具
§驾驶
§点到点的视距线
§沿道路的视距分析
§可见视线影响区域分析
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Visually inspect the model  to identify areas of concern
Zone of Visual Influence.jpg image003
The features that enable you to visually inspect your model that were part of the Subscription Advantage Pack for AutoCAD Civil 3D 2010 have been integrated into Civil 3D 2011. With these features you can:

1.Simulate driving through a 3D model using the Drive command. This enhancement provides a set of tools that enables the 3D visual inspection of the design. The drive-through can be simulated using various perspectives which can be used to help identify potential design considerations that should be addressed.
2.Line of Sight tools provide the ability to perform sight distance checks that can help to analyze potential high-risk areas. The Sight Distance Along Corridor command is especially useful to highway designers who need to meet minimum passing and stopping sight distance requirements, taking both the vertical and horizontal information into consideration.
3.Zone of Visual Influence command provide the ability to perform line-of-sight analysis 360 degrees around a single point. This information is especially useful where you need to determine if a vertical object can be seen from within a specified radius.