It is rotated, but it is basically a rectangle.
这是由旋转产生的，但基本上是个矩形。
Notice that the red rectangle is rotated 45 degrees from the original rectangle, shown in blue.
请注意，红色矩形会从原始矩形旋转45度角，以蓝色显示。
Notice that the red rectangle has been rotated around the 0, 0 screen coordinates.
请注意，红色矩形已经绕著0,0画面座标旋转。
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