What does it mean to "preconcat" a matrix in Android?

Posted by Brad Hein on Stack Overflow See other posts from Stack Overflow or by Brad Hein
Published on 2010-04-23T01:01:50Z Indexed on 2010/04/27 16:13 UTC
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android

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canvas

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custom

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view

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preconcat

In reviewing: http://developer.android.com/reference/android/graphics/Canvas.html

I'm wondering

translate(): "preconcat the current matrix with the specified translation" -- what does this mean?

I can't find a good definition of "preconcat" anywhere on the internet! The only place I can find it is in the Android Source - I'm starting to wonder if they made it up? :)

I'm familiar with "concat" or concatenate, which is to append to, so what is a pre-concat?

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