Tools工具
Shadow Length & Direction影子长度与方向
How long is that shadow, and which way does it fall? Compute it for any time and place.那道影子有多长、朝哪个方向延伸？任意时间与地点均可计算。
- Enter the height of the object casting the shadow (a person, a tree, a monument).输入投影物体的高度（人、树或纪念碑）。
- Set the date and time you plan to shoot — or let it default to your current time.设置计划拍摄的日期与时间——或保留默认的当前时间。
- Use the shadow direction to position your subject: backlit subjects should stand with their shadow pointing at the camera.用影子方向摆放主体：逆光主体应让影子指向相机。
At golden hour (sun ≈ 6°), a 2 m person casts a 19 m shadow — long diagonals that anchor compositions. At noon (sun ≈ 60°), the same person casts just 1.15 m. Plan shadows as graphic elements, not accidents.黄金时刻（太阳约 6°）时，2 米高的人会投出 19 米长的影子——长长的斜线能锚定构图。正午（太阳约 60°）时同一人只有 1.15 米影子。把影子当作画面元素来规划，而非意外。
