The establishment of the virtual city can provide to the people realistic three-dimensional scene of the city, in which you can easily view three-dimensional scene and urban lighting analysis feature.

城市三维模型的建立能够提供给人们逼真的城市三维场景，在这个场景中，可以轻松实现三维场景浏览、都市光影分析等功能。

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While the insight provided by nocturnal lighting levels has obvious limitations, the analysis is a helpful reminder that energy usage and economic growth are linked.

FORBES: The Case for Keeping the Lights On

As the low-hanging fruit of energy efficient lighting gets picked, this kind of advanced analysis represents the higher branches.

FORBES: The Next Bright Idea: Software For Lighting