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What does reference orientation do?

I need to do pfd using FOP and some mst images will be rotated. The result, however, does not look as I expect. So here is my question (and somehow I couldn’t find good documentation to clarify this problem for me):

If I define

fo:block-container reference-orientation="90" width="100" height="200"

will it rotate the entire container (leading efficiently to a rendered drawer of size 200x100), or will it just rotate the contents of the container (leaving the container itself to be displayed with dimensions of 100x200)?

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He will rotate the entire container.

Here's an example of width less than height, and then rotated 90 degrees ...

XSL-FO

 <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format"> <fo:layout-master-set> <fo:simple-page-master master-name="my-page" page-width="8.5in" page-height="11in"> <fo:region-body margin="1in" margin-top="1.5in" margin-bottom="1.5in"/> </fo:simple-page-master> </fo:layout-master-set> <fo:page-sequence master-reference="my-page"> <fo:flow flow-name="xsl-region-body"> <fo:block-container reference-orientation="90" width="3in" height="7in" background-color="black" padding="4pt"> <fo:block color="white">Ten years ago a crack commando unit was sent to prison by a military court for a crime they didn't commit. These men promptly escaped from a maximum security stockade to the Los Angeles underground. Today, still wanted by the government, they survive as soldiers of fortune. If you have a problem and no one else can help, and if you can find them, maybe you can hire the A-team.</fo:block> </fo:block-container> </fo:flow> </fo:page-sequence> </fo:root>

PDF output (using FOP 1.0)

enter image description here

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