Hi Dennis,
Dennis E. Hamilton schrieb:
The proposal that Regina brought to the ODF TC is safer. It does not
depend on attempting to identify the producer. (In fact, the ODF
specification says that the generator identification is *not* to be
used in this manner. It is also unreliably used.)
The idea is to face reality and affirm that draw:angle has an integer
value that expresses the angle in units of 1/10-th degree. (There
are other aspects of this problem that are not so clean cut.)
This supports alignment on the present reality and preserves the
interoperability that is afforded with that treatment.
That is the problem with the unit of angles for gradients. But this here
is different. It is about transformations. The matrix has no problems,
because the relevant matrix elements are used as unitless factor. But
rotate, skewX and skewY have angles as parameter.
The next step is to come up with a new attribute (or attributes) that
correspond to SVG provisions and are rigorously defined. The new
attribute(s) would appear down-level (i.e., in ODF
1.0/1.1/IS26300/1.2) as extensions and be ignored but be official in
ODF 1.3 (which would deprecate but not remove draw:angle).
If the SVG-aligned attributes are present (and to be required in ODF
1.3 documents, let's say) and recognized, they would over-rule
draw:angle. ODF 1.3 Producers that wanted to ensure down-level
interoperability would produce both attributes.
How does that sound?
It would be great to have an attribute svg:transform. That would be the
best solution for me and will prevent further trouble.
Nevertheless the problem remains, that
ODF1.1 has no unit at all and documents written by StarOffice use
unit rad,
and ODF1.2 specifies degree, but at least Apache OpenOffice,
LibreOffice and Powerpoint 2013 use rad.
I don't know, whether Gnumeric uses <draw:transform>. I have seen in the
meantime that Genumeric uses the attribute <draw:angle> in fillings in
charts and unfortunately (from Apache OpenOffice point of view) Gnumeric
uses it in deg there and not 0.1deg.
So there are some rules or hints needed, how to tread documents which
are ODF1.1 or ODF1.2.
Kind regards
Regina
- Dennis
-----Original Message----- From:
libreoffice-bounces+dennis.hamilton=acm....@lists.freedesktop.org
[mailto:libreoffice-bounces+dennis.hamilton=acm....@lists.freedesktop.org]
On Behalf Of Noel Grandin Sent: Friday, August 10, 2012 23:58 To:
Apache OpenOffice dev Cc: LO-dev Subject: Re: ODF angle in
draw:transform are in degrees
One way would be to add a new attribute specifying either degrees or
radians. Then modify the loader code so it looks at the application
that created the file to determine what it should do in cases where
there is not attribute. Fundamentally, I don't see that there is a
"perfect" solution to this.
On Thu, Aug 9, 2012 at 3:41 PM, Regina Henschel
<rb.hensc...@t-online.de> wrote:
Hi,
there is a problem which I have not addressed in the Wiki (see
other mail). As far as I see, the specification ODF 1.1 has no
setting for the unit of the angles, but ODF 1.2 set it to
"degrees". SVG has it in degrees too, so this setting is
reasonable.
But our implementation uses "radians". So there are a lot of
documents out, that have the angle in radians in the document.
Any idea how to proceed?
Kind regards Regina
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