[Gambas-user] Drawing sector

Jussi Lahtinen jussi.lahtinen at ...626...
Mon Dec 10 15:52:38 CET 2012


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
>
>
> ------------------------------------------------------------------------------
> LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial
> Remotely access PCs and mobile devices and provide instant support
> Improve your efficiency, and focus on delivering more value-add services
> Discover what IT Professionals Know. Rescue delivers
> http://p.sf.net/sfu/logmein_12329d2d
> _______________________________________________
> Gambas-user mailing list
> Gambas-user at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gambas-user
>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Screenshot.png
Type: image/png
Size: 1925 bytes
Desc: not available
URL: <http://lists.gambas-basic.org/pipermail/user/attachments/20121210/b16f3cfd/attachment.png>


More information about the User mailing list