getScreenCTM (third time)

Hello,

I need an answer to this question, I've already asked it twice and haven't
got any answer.

It can probably be derived from the spec, but I can't see it and I want to
make sure I'm implementing things the right way.

Is SVGLocatable::getScreenCTM affected by the outer SVG elements
currentTranslate and currentScale?

And also,

are currentTranslate and currentScale only applicable to the outer svg
element and ignored on inner svg elements?

thanks

--
Sigurd Lerstad