ALL RIGHT
I'm a silly billy. I used your code and it works just fine. Maybe
the problem isn't in this function.
I'm using Flash 8/AS2.
Cheers
On 12/14/06, Jordan Snyder <[EMAIL PROTECTED]> wrote:
I recind half of what I said after actually thinking about it, but
maybe it's a different perspective ;)
On 12/14/06, Jordan Snyder <[EMAIL PROTECTED]> wrote:
> To dodge your question, couldn't you just use the simple distance
> forumula to determine the base even when it's not horizontal? I dont'
> know much about your application or if you'll have the points where
> the triangle's points lie, but that's just an idea.
>
> Oh, but I just thought of something from my old rusty brain. I looked
> at the formula on the mathworld page; would that not indicate a
> distributive method of multiplication? Again, rusty, but a thought.
>
> Let us know what you figure out!!
>
>
> Cheers
>
> On 12/14/06, Merrill, Jason <[EMAIL PROTECTED]> wrote:
> > I'm trying to figure the area of a triangle in Actionscript using the
> > perimeter values only, not the traditional simple formula:
> >
> > area = (height/2)*base
> >
> > because figuring the height is tricky given the triangle will be drawn
> > in odd ways (i.e. a not horizontally alinged base), so I am exploring
> > other triangle area forumulas that only take in the perimiter values
> > (a,b,c), like Heron's formula or this one, which I like:
> >
> > given a,b,c are the length of the sides of the triangle, then the
> > formula is:
> >
> > squareRoot of: (a+b+c)(b+c-a)(c+a-b)(a+b-c)
> > _______________________________________
> > 4
> >
> > So in trying to translate that to actionscript, I wrote:
> >
> > public static function areaOfTriangle(a:Number, b:Number,
> > c:Number):Number{
> > return (Math.sqrt((a+b+c)*(b+c-a)*(c+a-b)*(a+b-c)))/4;
> > }
> >
> > But the problem is (a+b+c)*(b+c-a)*(c+a-b)*(a+b-c) results in a negative
> > number, and this the square root cannot be taken. Or perhaps I am
> > interpreting the forumula incorrectly:
> > http://mathworld.wolfram.com/TriangleArea.html
> >
> > What am I doing wrong here? Thanks.
> >
> > Jason Merrill
> > Bank of America
> > Learning & Organizational Effectiveness
> >
> >
> >
> >
> > _______________________________________________
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>
>
> --
> Jordan Snyder
> jordansnyder.com
> Applications Developer
> Image Action LLC
> http://www.imageaction.com
>
--
Jordan Snyder
Applications Developer
Image Action LLC
http://www.imageaction.com
--
Jordan Snyder
Applications Developer
Image Action LLC
http://www.imageaction.com
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