shadow angle

Light low angle, but not low that your subject is obscured by its own shadow.

请保持光源处在较低的角度, 但也不要放的太低以至于你的主题因为处于自身的阴影而模糊不清.

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The analysis results of the produce of shadow and the relation among the height of target, depression angle of radar and shadow show that it is possible to extract 3-D geometric features extraction from SAR target in high-resolution SAR imagery.

分析了目标阴影产生的原因，给出了目标高度与雷达俯仰角和阴影的关系，指出在高分辨SAR图像中可以基于阴影提取目标三维几何特征。

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In the paper we acquire a result by making experiments repeatedly. When making perspective shade and shadow, we can increase sense of beauty in architectural drawing by using height angle of ray between 30 ° and 40 °.

通过反复作图试验，得出画建筑效果图的透视阴影时，30°～40°的光线角度能增强建筑效果图美感的结论。

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