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What is the difference between preRotate and postRotate?

If I do every translation using postTranslate with preRotate the image, does that mean the image will do all the rotation first before translation. If I wanted to translate an image then rotate the image by its origin of the image. This way will work right...

If I use a postRotate instead of preRotate, I need to move the image back , rotate the postTranslate the image back to the location.

Am my right?

LittleFunny
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  • Possible duplicate of [this other SO question](http://stackoverflow.com/questions/3855578/android-matrix-what-is-the-different-between-preconcat-and-postconcat) – GMax Jun 10 '14 at 08:43
  • This may be helpful. https://stackoverflow.com/questions/3855578/android-matrix-what-is-the-different-between-preconcat-and-postconcat/5123755 – tianrui yang Dec 24 '18 at 10:14

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