Re: [Flashcoders] mathematics of an elipse

2009-06-20 Thread Anthony Pace
Given your points, Ivan is correct; however, although what I am about to 
write is most likely not going to be your case, there is a way of 
deriving it based on known dependencies.


Given your points, it is possible if:

   * if the angle you had mentioned was the angle between the lines as
 they exist on the the original untranslated circle (in this case
 it is even possible if there is focal distortion by an unknown amount)
   * or if the ellipse will always be the type of ellipse where its
 opposing sides along the x and y axis are perfect reflection

Yet, although the above makes it possible, these scenarios are most 
likely not your case.



allandt bik-elliott (thefieldcomic.com) wrote:

thankyou very much - i'll take a look

best
a

On Thu, Jun 18, 2009 at 6:59 PM, Ivan Dembicki wrote:

  

Hello Charles,

You can build many ellipses through your points.
More data needed for ellipse unique define.

Also you can see old bezier classes
http://bezier.googlecode.com/files/ru.bezier.zip
Ellipse class especially.

good luck!

--
iv
http://www.bezier.ru
http://bezier.googlecode.com
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Re: [Flashcoders] mathematics of an elipse

2009-06-19 Thread allandt bik-elliott (thefieldcomic.com)
thankyou very much - i'll take a look

best
a

On Thu, Jun 18, 2009 at 6:59 PM, Ivan Dembicki wrote:

> Hello Charles,
>
> You can build many ellipses through your points.
> More data needed for ellipse unique define.
>
> Also you can see old bezier classes
> http://bezier.googlecode.com/files/ru.bezier.zip
> Ellipse class especially.
>
> good luck!
>
> --
> iv
> http://www.bezier.ru
> http://bezier.googlecode.com
> ___
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> Flashcoders@chattyfig.figleaf.com
> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
>
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Re: [Flashcoders] mathematics of an elipse

2009-06-18 Thread Ivan Dembicki
Hello Charles,

You can build many ellipses through your points.
More data needed for ellipse unique define.

Also you can see old bezier classes
http://bezier.googlecode.com/files/ru.bezier.zip
Ellipse class especially.

good luck!

-- 
iv
http://www.bezier.ru
http://bezier.googlecode.com
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Re: [Flashcoders] mathematics of an elipse

2009-06-18 Thread Charles Parcell
Does this help at all?  Check the demo.

http://code.google.com/p/bezier/

Charles P.


On Thu, Jun 18, 2009 at 10:59 AM, allandt bik-elliott (thefieldcomic.com) <
alla...@gmail.com> wrote:

> hey guys
>
> I have have a maths problem that i'm having trouble solving, despite
> repeated attempts on Google.
>
> If i have an angle and a distance (n), plus one of the axis lengths (say
> the
> minor, y), how would i find out what the remaining axis length (x) was
> please?
>
> I've drawn it out here (let me know if the link fails - it has a limit)
> https://www.yousendit.com/download/cmczRFFlK3hLVlZMWEE9PQ
>
> Thanks
> A
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Re: [Flashcoders] mathematics of an elipse

2009-06-18 Thread Charles Parcell
Hmmm

Likely not, now that I am looking through it.  I could have sworn it had a
demo on angles and areas

Charles P.


On Thu, Jun 18, 2009 at 1:35 PM, Charles Parcell wrote:

> Does this help at all?  Check the demo.
>
> http://code.google.com/p/bezier/
>
> Charles P.
>
>
>
> On Thu, Jun 18, 2009 at 10:59 AM, allandt bik-elliott (thefieldcomic.com)
>  wrote:
>
>> hey guys
>>
>> I have have a maths problem that i'm having trouble solving, despite
>> repeated attempts on Google.
>>
>> If i have an angle and a distance (n), plus one of the axis lengths (say
>> the
>> minor, y), how would i find out what the remaining axis length (x) was
>> please?
>>
>> I've drawn it out here (let me know if the link fails - it has a limit)
>> https://www.yousendit.com/download/cmczRFFlK3hLVlZMWEE9PQ
>>
>> Thanks
>> A
>> ___
>> Flashcoders mailing list
>> Flashcoders@chattyfig.figleaf.com
>> http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
>>
>
>
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[Flashcoders] mathematics of an elipse

2009-06-18 Thread allandt bik-elliott (thefieldcomic.com)
hey guys

I have have a maths problem that i'm having trouble solving, despite
repeated attempts on Google.

If i have an angle and a distance (n), plus one of the axis lengths (say the
minor, y), how would i find out what the remaining axis length (x) was
please?

I've drawn it out here (let me know if the link fails - it has a limit)
https://www.yousendit.com/download/cmczRFFlK3hLVlZMWEE9PQ

Thanks
A
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