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From Danilo Costa <daniloco...@gmail.com>
Subject Re: Centering the SVG - Differences among affineTransforms
Date Fri, 14 Jan 2005 18:14:48 GMT
Thank you Thomas and Kai by your help!!!

Now  my centering function is working fine!!!!

best regards

Danilo


On Fri, 14 Jan 2005 09:51:34 -0200, Danilo Costa <danilocosta@gmail.com> wrote:
> Thanks Kai!! It will help me a lot!
> 
> Best regards
> 
> Danilo
> 
> 
> On Fri, 14 Jan 2005 08:58:57 +0100, Meves Kai (ext)
> <Kai.Meves.ext@ptd.siemens.de> wrote:
> > Hello,
> >
> > >  2 - How do the coords in AffineTransform, returned by
> > > "svgCanvas.getViewBoxTransform()",   work?
> > >  Neither the screens corrds nor the canvas corrds worked appropriately
> > > when I tried to use translation operations.
> > >
> > > 3 - Are there some way to map canvas coords to screen coords
> > > and vice-versa?
> >
> > Yes, of course there is. What you get by calling getViewBoxTransform() is
> > the current Transformation Matrix, Batik uses to do the Transformation from
> > world coordinates to screen coordinates. You can do something like this:
> >
> > AffineTransform affTrans = myCanvas.getViewBoxTransform();
> > affTrans.transform(point1,point2) //where point1 and point2 are some Point2D
> >
> > and you get the screen coordinates from the world coordinates that are
> > stored in point1 as result in point2.
> >
> > If you want to do it the other way round (screen coordinates to world
> > coordinates), you need to use the inverse of the Transform Matrix, which you
> > get by
> >
> > affTransInv = affTrans.createInverse();
> >
> > I hope that I remembered all of this correctly... :-)
> >
> > Kind regards,
> > Kai.
> >
> > ---------------------------------------------------------------------
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> >
> >
> 
> 
> --
> "...YOU CANNOT KNOW THE MEANING OF YOUR LIFE UNTIL YOU ARE CONNECTED
> WITH THE POWER THAT CREATED YOU..."
> Shri Mataji Nirmala Devi
> 


-- 
"...YOU CANNOT KNOW THE MEANING OF YOUR LIFE UNTIL YOU ARE CONNECTED
WITH THE POWER THAT CREATED YOU..."
Shri Mataji Nirmala Devi

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