Hi Thorsten,
>>I wonder how difficult it is for a non-mathematical API user to create
>>an AffineMatrix2D from a degree and a center point. Please don't tell me
>>this needs pen and paper, this would make the method completely useless
>>to the average user (and thus I'd continue to argue it should be removed).
>>If there were some service which creates such a matrix from a degree and
>>a center point, then I'd vote for leaving the method in.
>
> basegfx::B2DHomMatrix aMatrix;
> aMatrix.rotate(nAngle);
> aMatrix.scale(nScaleX,nScaleY);
> aMatrix.translate(nMoveX,nMoveY);
> ...
> canvas.setTransformation(
> basegfx::unotools::affineMatrixFromHomMatrix(aMatrix));
>
> All the expressive power you need is in B2DHomMatrix. We can even add
> additional convenience functions, if you miss anything.
Okay, and now the version for the developer writing a component in
Basic. Well, extensions of that kind in Basic might be unusual, so:
Python. Or Ruby. Or ... you get the idea.
We're talking about a UNO API here, so only UNO services are allowed :)
>>>I see your point, but I don't think we need dumbing down the interface
> Well, given the existence of B2DHomMatrix (and
> java.awt.geom.AffineTransform, BTW) - do you still think the
> transformation abstraction is too complex?
See above. Without an UNO-accessible way: yes.
> So, to summarize: except for setTransformation(), we seem to agree
> largely.
Yes.
> I'd vote for keeping it,
I'd vote for removing it :)
> /** Retrieve current clip rect
> */
> com::sun::star::geometry::RealRectangle2D getCurrentClipRect();
thinking more about it (sorry :): Do we need this? What happens when the
current clip region isn't a rectangle? Should we just have a "getClip"
returning the complete thing? Finally, retrieval is much more seldom
than setting it, probably.
Ciao
Frank
--
- Frank Schönheit, Software Engineer
frank.schoenheit@... -
- Sun Microsystems
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