Can Translate Alone Perfectly Mimic CSS Transform-Origin?

Simulating Transform-Origin Using Translation: Resolving Scaling and Rotation Deviations

In CSS, transform-origin property allows for precise positioning of an element's transformation around a specific point. However, replicating its functionality using only transform: translate can pose challenges, especially when combining it with scale and rotation transformations.

According to the MDN documentation, simulating transform-origin with translate involves:

1. Negating the specified transform-origin value and applying it as an initial translation.
2. Applying the desired transformation.
3. Translating the element back by the original transformed value.

Despite following this approach, developers commonly encounter incorrect results when attempting to mimic transform-origin behavior. Here are the reasons behind these discrepancies:

1. Inversion of Translations:

The provided CSS code includes an error in the ordering of translations within the .translate class. To correctly simulate transform-origin, the initial and final translations should be inverted. Here's the revised code:

.translate {
  transform: translate(100px, 100px) translate(100px, 0px) scale(2) rotate(45deg) translate(-100px, -100px);
}

2. Adjustment of Transform-Origin:

Another issue lies in the transform-origin property of the .translate class. By default, transform-origin is set to center (50% 50%). However, to match the behavior of transform-origin, we need to shift this reference point to the top left corner (0 0) of the element.

.translate {
  transform-origin: 0 0;
  ...
}

By incorporating these modifications, we can achieve accurate simulation of transform-origin using translate. These corrections should resolve the inconsistencies in scaling and rotation observed in the original CSS code.

The above is the detailed content of Can Translate Alone Perfectly Mimic CSS Transform-Origin?. For more information, please follow other related articles on the PHP Chinese website!