Rotate image dialog

[Michael Thaler]

On Monday 28 March 2005 17:15, Michael Thaler wrote:
> On Monday 28 March 2005 16:47, Boudewijn Rempt wrote:
> > * I want to give an old dimensions/new dimensions comparison. For that I
> > need some way to access the dimensions of the layer/image after
> > rotatating. The current rotate code doesn't give me that.
>
> x_new = QABS ( x_old * cos( phi ) ) + QABS( y_old * sin( phi) );
> y_new = QABS ( y_old * cos( phi ) ) + QABS( x_old * sin( phi) );

phi has to be in radians, not degrees, so you have to divide by 2*PI if you 
use degrees: cos( phi / (2*PI) ) and so on...

Michael