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From "Bradley V. Stone" <bvst...@gmail.com>
Subject RE: Someone with 0.8.0 willing to help?
Date Sun, 15 Feb 2009 14:40:54 GMT


Bradley V. Stone
BVSTools, Inc.
BVSTools - www.bvstools.com
eRPG SDK - www.erpgsdk.com

> -----Original Message-----
> From: info@lehmi.de [mailto:info@lehmi.de]
> Sent: Sunday, February 15, 2009 6:49 AM
> To: pdfbox-users@incubator.apache.org
> Subject: Re: Someone with 0.8.0 willing to help?
>
>
> Bradley V. Stone schrieb:
> >> When I started with generating pdf documents I didn't understand the
> >> landscape stuff, too. But obviously it is as described:
> >>
> >> - mediabox with portrait parms
> >> - rotation with 90 degrees
> >> - everthing has to be rotated with a rotation-matrix Tm or cm command
> >>
> >> I'll send you a simple sample document, so that you'll have a suitable
> >> example for your implementation.
> >>
> >> Andreas
> >
> > Not working as easy as I thought.  :)
> >
> > 0 12 -12 0 91.74 69.8905 Tm
> scaleX, shearY , shearX , scaleY, translationX, translationY
> >
> > This is the TM, and I understand what everything is, but for 12 and -12
> > (text rotation and text inclination) how are those numbers
> being derived?
> I've needed my time to understand the whole matrix thing. but I think
> I've got the point.
>
> The amount of 12 is used for the font scaling. In my document and in
> many other documents too, the font size is set to 1 (see Tf operator).
> The real fontsize is indirectly set by using the rotation factor of the
> textmatrix.
> If only rotation values of Math.PI/2 are used, the rotation values will
> be a combination of +/-1
>
> > I tried changing my Tm similarily and it messed something up because the
> > text no longer was visable in the document.  I changed my x,y
> to 0 and 0 for
> > left bottom, media box to portrait, and rotate to 90.  Then
> started playing
> > with rotation and inclination numbers.  1 and -1 made it look like 45
> > degrees, but the font got "bigger" and started going off the page.
> >
> > The PDF spec really doesn't explain this so well, so I'm kinda
> stuck again.
> > :(
> I guess they presume that everyone knows the mathematics about the
> matrix stuff. :-(
>
> Andreas

Knock knock...  follow the white rabbit.  :)

I think I'll see if we can't get the overlay to be the same "landscape" type
as my document to start with.


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