3D方式演示欧拉角

通过鼠标就可以更改欧拉角的方位，其中代码适用于欧拉角方向余弦矩阵的转换。-findEulerAngs generates Euler angle sets and animates rotations in response to user manipulation of a 3D rigid body (a box).

Use the mouse to change the orientation of the box. A wireframe of the original box position will appear. The　Euler Axis　button animates the rotation about the Euler Axis between the original and

new box positions. The　Rotate　button calculates a set of Euler angles for the rotation type currently selected ( Body　or　Space ) and the axis set selected in the dropdown menu to orient the axes to

the new box position.　Derotate　reverses this process and brings the axes back to their previous position.

Once the axes have been rotated, subsequent rotations are calculated

from this new orientation. This means that Space rotations use the coordinate system associated with the previous cube orientation (i.e. the axes of the wireframe cube).　Axes DCM　is the direction cosine matrix of the current axes orientation in the unrotated inertial frame.　Box DCM (in