[xep-support] line-height

[G. Ken Holman]

At 2003-10-21 11:14 +0200, Thomas.Braun at infowerk.de wrote:
>the following fo:block is in one of my documents:
>
><fo:block line-height="100%">
>         <fo:inline font-size="12pt">blah blah</fo:block>
></fo:block>
>
>when i reduce font-size to a value less than 8pt the line-height attribute 
>doesn't work correctly.
>the more i reduce font-size the more space i will get between the lines.
>
>does anyone know why this happens?

Yes, because the block's line height is based on the font size *of the 
block* not of the characters in the block.  In XSL-FO characters sit on the 
lines generated by the block, characters don't generate lines by 
themselves.  If you want all of the lines of a block to be a particular 
size, set that size as a property of the block and *then* sit your 
characters on those lines.

This is a common question in my XSL-FO classes ... it comes up in 
discussion when you want two leaders to be positioned close to each other: 
one sizes the lines of the blocks to be very short and *then* you place the 
leader on the lines and they will be closer together.

I hope this helps.

.................... Ken


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G. Ken Holman                 mailto:gkholman at CraneSoftwrights.com
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