But by carefully placing objects of different sizes so that the Angle always remains the same, it's possible to force perspective (see diagram b).
但是,如果通过小心的排列物体,以使这个角度保持不变,那么就有可能会改变这种远近关系。
2
The angle decreases as an object gets further away (see diagram a).
当物体离得远的时候,这个角度也会变小。
3
The author analyzes the relationship between side and Angle in a diagram to deduce a new general-purpose formula which can determine the length of arc radius and the size of an ellipse.