Viewsheds from Key Observation Points for Theodore Roosevelt National Park (THRO)
收藏data.gov2026-01-17 收录
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Visibility viewsheds incorporate influences of distance from observer, object size and limits of human visual acuity to define the degree of visibility as a...
可视域（Visibility viewsheds）纳入了观测者与目标的距离、物体尺寸以及人类视觉敏锐度极限等影响因素，以此将可视程度定义为一类……
