2d rotation seems to be just a rotating element, 3D looks like a rotating coordinate system.
2d rotation seems to be just a rotating element, 3D looks like a rotating coordinate system.
rotation is actually a linear transformation, which can be understood as axis rotation or axis immobility, and point rotation
rotates elements in a certain direction based on a certain point. All concrete or rotational elements, in fact, the rotation in ps is the same.
made a demo
https://codepen.io/xboxyan/pe.
proper rotation is made here so that all the faces can be seen
pay attention to the transform-origin
css3 is essentially a matrix operation, with sequence
logically, each transformation is based on the element itself
actually observed on the web page, because it is a 3D transformation, we usually add
to the parent (stage).{
transform-style: preserve-3d;
perspective: 850px; /**/
}therefore, visually, it is impossible to directly measure the distance from the screen, but can only roughly see that it is closer to the observer
. The angle of cannot be measured directly, which is related to the angle of the observer. Even if you are perpendicular to the screen, if you look down from the top of the angle, you can still see the div
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