观察角度和切割面共同定义了视域。
The flattened perspective of the urban areas is the result of the viewing angle and distance from the ISS.这种类似于平面图的效果是由于拍摄角度和当时空间站位置距离的因素造成的。
The camera's position and viewing angle will later define the amount of pixels a unit will occupy on the screen.随后,摄像机的位置和视角可定义一个单位在屏幕上所占的像素数。