Nice.
--- In [email protected], "lampei" <[EMAIL PROTECTED]> wrote:
>
> You could always use the NumberFormatter class and use the precision
> property:
>
> var numberFormatter:NumberFormatter = new NumberFormatter;
> numberFormatter.precision = 2;
> var myNum:Number = Number( numberFormatter.format( myOldNum ) );
>
> This will give you the old number formatted to 2 decimal places (or
> however many you need). From here you could use your "tolerance" to
> compare the 2 numbers.
>
> --- In [email protected], "Tim Hoff" TimHoff@ wrote:
> >
> >
> > Hi fumeng,
> >
> > You could work this out using Math.round(). Although this method
rounds
> > to the nearest integer (doesn't use a precision parameter), with a
> > little work this could help you compare apples to apples.
> >
> > -TH
> >
> > --- In [email protected], "fumeng5" <fumeng5@> wrote:
> > >
> > > Hi,
> > >
> > > I'm trying to compare 3 points but because of double precision in
AS3
> > > i'm running into some issues with trailing digits causing the
numbers
> > > to not be equal, i.e. 1.25 != 1.2499999999999
> > >
> > > what i'd like to figure out how to do is introduce a tolerance of
say
> > > .001. then i'd compare the test point against the other two points
> > > saying: is testPoint.x within the range of point1.x and point2.x
and
> > > is testPoint.y within the range of point1.y and point2.y. if so,
> > > return true.
> > >
> > > i just can't figure it out. here's what i have so far:
> > >
> > > public static function isEndPoint(p:Point, Lp1:Point,
> > Lp2:Point):Boolean {
> > > var tolerance:int = .001;
> > > var newLp1:Point = new Point(tolerance * Lp1.x,tolerance * Lp1.y);
> > > var newLp2:Point = new Point(tolerance * Lp2.x,tolerance * Lp2.y);
> > > return (p.equals(newLp1) || p.equals(newLp2));
> > > }
> > >
> > > I guess I'm seeing that the equals() method at the bottom of this
code
> > > is not really what i want. Plus, multiplying everything by .001
> > > doesn't solve the problem as i'll essentially be using the same
> > > numbers i started with.
> > >
> > > Can someone perhaps point me in the right direction here, please?
I'm
> > > not sure where exactly to go from here.
> > >
> > > Thanks,
> > >
> > > fumeng.
> > >
> >
>
