[Gambas-user] Drawing sector

[Jussi Lahtinen]

Yes, it makes difference. See screenshots.

Jussi



On Mon, Dec 10, 2012 at 8:19 PM, Fabien Bodard <gambas.fr at ...626...> wrote:

> haaa vector ... what a great thing for great things ... but not for small
> ones...
>
> does it do the same with a smaller linewidth ?
>
>
>
> 2012/12/10 Jussi Lahtinen <jussi.lahtinen at ...626...>
>
> > OK, makes sense.
> > One tiny thing more...
> >
> > Draw.Foreground = Color.Black
> > Draw.LineWidth = 3
> > Draw.Circle(106, 106, 105)
> >
> > Draw.LineWidth = 1
> > Draw.FillStyle = Fill.Solid
> >
> >
> > 'this draws very narrow sector
> >
> > Draw.FillColor = Color.Black
> > Draw.Circle(106, 106, 105, Rad(359), Rad(360))
> >
> >
> > 'this draws little red cross at center point of the sector.
> >
> > Draw.Foreground = Color.Red
> > Draw.Line(104, 106, 108, 106)
> > Draw.Line(106, 104, 106, 108)
> >
> >
> > However sector is off from center point.
> > See attachment.
> >
> >
> > Jussi
> >
> >
> >
> >
> > On Sun, Dec 9, 2012 at 5:12 PM, Benoît Minisini <
> > gambas at ...1...> wrote:
> >
> > > Le 07/12/2012 14:28, Jussi Lahtinen a écrit :
> > > >> Fixed in revision #5415.
> > > >>
> > > >
> > > > Something is still different from the original behaviour.
> > > > I use same circle commands to draw pie chart and it still fails...
> > > >
> > > > Test output:
> > > >
> > > > Area num. 0: in rads; 0 to 0.89759700342775
> > > > Area num. 1: in rads; 0.89759700342775 to 1.79519400685551
> > > > Area num. 2: in rads; 1.79519400685551 to 2.69279101028326
> > > > Area num. 3: in rads; 2.69279101028326 to 3.59038801371102
> > > > Area num. 4: in rads; 3.59038801371102 to 4.48798501713877
> > > > Area num. 5: in rads; 4.48798501713877 to 5.38558202056653
> > > > Area num. 6: in rads; 5.38558202056653 to 6.28317902399428
> > > > Area num. 7: in rads; 6.28317902399428 to 0
> > > >
> > > > It seems that drawing area 7 cover the whole chart.
> > > > So it would be:
> > > > Draw.Circle(106, 106, 105, 6.28317902399428, 0)
> > > >
> > > > 6.28317902399428 is same as Pi(2) or 360 degrees, which means start
> is
> > > same
> > > > as end.
> > > >
> > > > I think whole circle should be drawn with this:
> > > > Draw.Circle(106, 106, 105, 0, 6.28317902399428)
> > > >
> > > > And this shouldn't draw anything:
> > > > Draw.Circle(106, 106, 105, 6.28317902399428, 0)
> > > >
> > > >
> > > > Jussi
> > >
> > > Actually the old Draw class was wrong, because you can draw a pie
> > > clockwise (End > Start) or counter-clockwise (End < Start). So only
> > > Start = End should not draw anything (or just a line between the center
> > > and the point at the specified angle).
> > >
> > > --
> > > Benoît Minisini
> > >
> > >
> > >
> >
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> >
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>
> --
> Fabien Bodard
>
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