Hi
[EMAIL PROTECTED] wrote on 09/29/2008 02:58:03 AM:
> The rotation was a success, but now the image doesn't have the right
size
> anymore.
What do you mean by 'the right size'?
> I suspect it keeps the sizes of the image as it would be displayed
> non-rotated.
Yes, but I'm not sure what you want it to do. If you want
it another size you will need to adjust the scale transform.
Be aware that like rotation adjusting the scale will effect
your translate.
> My piece of code:
>
> <!-- Draw Bitmap -->
> <svg:g transform="rotate({$bitmap_rotation}, {$width_middle},
> {$height_middle})">
> <svg:g
>
transform="translate({$svg_bitmap_width_offset},{$svg_bitmap_height_offset})">
> <svg:image width="{$svg_bitmap_width}" height="{$svg_bitmap_height}"
> xlink:href="{$bitmap_path}">
> <svg:title>Front Bitmap</svg:title>
> </svg:image>
> </svg:g>
> </svg:g>
>
> How can I make sure the image gets the right size again?
>
> > Hi,
> >
> > Thank you for the reply.
> > The change of the order of attributes and putting the rotation inside
the
> > image tag did the trick.
> >
> > Thanks,
> >
> > Chantal
> >
> >> Hi
> >>
> >> [EMAIL PROTECTED] wrote on 09/25/2008 02:46:06 AM:
> >>
> >>> <svg:g
> >>>
> >> transform="translate({$svg_bitmap_width_offset},
> {$svg_bitmap_height_offset}),
> >>> rotate({$svg_bitmap_width_offset}, {$svg_bitmap_height_offset},
> >> {$bitmap_rotation})">
> >>
> >> You were misled a little the proper order of parameters
> >> for rotate is 'angle', 'cx, 'cy' (not cx,cy,angle):
> >> http://www.w3.org/TR/SVG11/coords.html#TransformAttribute
> >>
> >>> I do have an image in the viewable, but it still is not rotated.
> >>
> >> I would suggest starting with a nice small static document and
> >> adjusting the various values by hand until you understand them.
> >> Rather than trying to get the whole scripted thing working up front.
> >> Affine transforms are rather tricky. In particular I would suggest
that
> >> you might want to rotate and then translate the image. (the order
that
> >> affine transforms are applied in is very important).
> >>
> >>> I think you might be right about the image not being in the viewable
> >> area,
> >>> but rotating around the center doesn't seem to be the solution.
> >>
> >> It is the solution but between having the rotate 'out of order'
and
> >> the arguments mixed up you wouldn't know.
> >>
> >>> > It's probably being rotated outside the viewable area. If you
want
> >>> to
> >>> > rotate around the center of the image, I think you have to
calculate
> >> it as
> >>> > such:
> >>> >
> >>> > cx = x + (width / 2)
> >>> > cy = y + (height / 2)
> >>> >
> >>> > where x, y, width, and height come from your image.
> >>> >
> >>> > Michael
> >>> >
> >>> > ________________________________
> >>> >
> >>> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> >>> > Sent: Wed 9/24/2008 10:59 AM
> >>> > To: batik-users@xmlgraphics.apache.org
> >>> > Subject: RE: image rotation
> >>> >
> >>> >
> >>> >
> >>> > I see. I have to give the point where to rotate around.
> >>> > But it still gives the same result. when I use rotate(...) inside
the
> >>> > transform attribute, my image doesn't appear at all. When I use
the
> >>> > seperate rotation attribute (which I used before on text) the
image
> >>> > appears, but not rotated.
> >>> >
> >>> > Chantal
> >>> >
> >>> >> Well I'm not sure what you're trying to do. Are you trying to
> >>> simply
> >>> >> rotate the element around the center? If so, you can just do
this:
> >>> >>
> >>> >> transform="rotate(cx, cy, t)" where cx is the x coordinate of the
> >> image
> >>> >> center, cy is the y coordinate of the image center and t is the
> >> rotate
> >>> >> angle in degrees.
> >>> >>
> >>> >> Michael
> >>> >>
> >>> >> ________________________________
> >>> >>
> >>> >> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> >>> >> Sent: Wed 9/24/2008 9:49 AM
> >>> >> To: batik-users@xmlgraphics.apache.org
> >>> >> Subject: RE: image rotation
> >>> >>
> >>> >>
> >>> >>
> >>> >> If I change it to the format like you said:
> >>> >>
> >>> >> <!-- Draw Bitmap -->
> >>> >> <svg:g
> >>> >> transform="translate({$svg_bitmap_width_offset},
> >>> {$svg_bitmap_height_offset})
> >>> >> rotate({$bitmap_rotation})">
> >>> >> <svg:image x="2" y="2" width="{$svg_bitmap_width}"
> >>> >> height="{$svg_bitmap_height}" xlink:href="{$bitmap_path}">
> >>> >> <svg:title>Front Bitmap</svg:title>
> >>> >> </svg:image>
> >>> >> </svg:g>
> >>> >>
> >>> >> I get no image at all... (even with hard-coded values for
rotation
> >>> >> angle)
> >>> >> If I use hard-coded values in the code of my first post, the
image
> >> still
> >>> >> isn't rotated.
> >>> >>
> >>> >> Chantal
> >>> >>
> >>> >>> I think the format for your transform is wrong:
> >>> >>>
> >>> >>> transform="translate(x,y), rotate(t)"
> >>> >>>
> >>> >>> http://www.w3.org/TR/SVG/coords.html#TransformAttribute
> >>> >>> <http://www.w3.org/TR/SVG/coords.html#TransformAttribute>
> >>> >>>
> >>> >>> Michael
> >>> >>>
> >>> >>> ________________________________
> >>> >>>
> >>> >>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
> >>> >>> Sent: Wed 9/24/2008 4:41 AM
> >>> >>> To: batik-users@xmlgraphics.apache.org
> >>> >>> Subject: svg:image rotation
> >>> >>>
> >>> >>>
> >>> >>>
> >>> >>> Hi,
> >>> >>>
> >>> >>> From an xml file I read a path of an image and a rotation. Now I
> >> want
> >>> >>> to
> >>> >>> display the image and rotate it according to what is in the XML
> >> file.
> >>> >>>
> >>> >>> This is the code I use:
> >>> >>>
> >>> >>> <!-- Draw Bitmap -->
> >>> >>> <svg:g
> >>> >>> transform="translate({$svg_bitmap_width_offset),
> >>> {$svg_bitmap_height_offset})"
> >>> >>> rotation="{$bitmap_rotation}">
> >>> >>> <svg:image x="2" y="2" width="{$svg_bitmap_width}"
> >>> >>> height="{$svg_bitmap_height}" xlink:href="{$bitmap_path}">
> >>> >>> <svg:title>Front Bitmap</svg:title>
> >>> >>> </svg:image>
> >>> >>> </svg:g>
> >>> >>>
> >>> >>> Now when I view, the image is not rotated.
> >>> >>> I tried searching with google, but I can't seem to find
anything,
> >> and I
> >>> >>> begin to wonder if it is possible at all.
> >>> >>>
> >>> >>> Is there, and if yes what is the correct solution to my problem?
> >>> >>>
> >>> >>> Thanks in advance,
> >>> >>>
> >>> >>> Chantal
> >>> >>>
> >>> >>>
> >>> >>>
> >>> >>>
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