El 11-04-2014, a las 20:56, Igor Stasenko <siguc...@gmail.com> escribió:
> > > > On 12 April 2014 01:37, Juraj Kubelka <juraj.kube...@gmail.com> wrote: > Thank you Igor, > > I suspect there is no better solution. But anyway I am surprised, every > simple drawing application manages ellipses. > > > Athens is not an application, it is framework. > And why you think that every framework supports drawing ellipses as a basic > command/primitive..for instance? I know of at least one, which doesn't - try > drawing it with OpenGL. > ;) This is my new experience, so something what the others accepts and live with that, newcomers do not understand :-D Cheers, Jura > > Thank you anyway. > Juraj > > El 11-04-2014, a las 17:35, Igor Stasenko <siguc...@gmail.com> escribió: > >> yes, you using stroke for 2nd ellipse, >> but stroke width is also subject of scaling, that's why it has different >> width, because >> of non-uniform scaling (x/y). >> instead you can first, draw a filled ellipse (blue) and then draw green one >> over it. >> >> >> On 11 April 2014 21:33, Juraj Kubelka <juraj.kube...@gmail.com> wrote: >> Hi Igor, hi all! >> >> I am not sure how to properly draw ellipse. Right now I draw a path like >> this: >> >> The path is created that way: >> -=-=-=-=- >> computePath >> path := self athensCanvas >> createPath: [ :builder | >> builder >> absolute; >> moveTo: 0 @ 0.5; >> ccwArcTo: 0.5 @ 0.0 angle: 90 >> degreesToRadians; >> ccwArcTo: 0.0 @ -0.5 angle: 90 >> degreesToRadians; >> ccwArcTo: -0.5 @ 0.0 angle: 90 >> degreesToRadians; >> ccwArcTo: 0 @ 0.5 angle: 90 >> degreesToRadians ] >> -=-=-=-=- >> >> And draw it like this: >> -=-=-=-=- >> drawOn: athensCanvas >> athensCanvas pathTransform >> restoreAfter: [ >> athensCanvas pathTransform >> scaleBy: rectangle extent asFloatPoint >> athensCanvas >> setPaint: color; >> drawShape: self path. >> (athensCanvas setStrokePaint: strokePaint) >> width: (self strokeWidth / self scale) asFloat. >> athensCanvas drawShape: self path ] >> -=-=-=-=- >> >> But with a different shapes, the border does not have same width all around >> the ellipse. See the image: >> >> <Captura de pantalla 2014-04-11 a la(s) 16.29.13.png> >> >> Is there better way to draw it? >> Thank you, >> Jura >> >> >> >> -- >> Best regards, >> Igor Stasenko. > > > > > -- > Best regards, > Igor Stasenko.
