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I'm just figuring about splines a little bit. I encountered a representation
with points at the curve and two control points for each such point. This
"control points" are obviously in the gradient direction (plus/minus) of the
spline but they can have different lengths. And they influence the original
www.nolimitscoaster.com and you will see what I mean. I have not found the
mathematical representation of this parametrisation. Did someone have a hint?
Best regards,
Michael
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Le 11/08/2012 21:42, MichaelJF nous fit lire :
> I'm just figuring about splines a little bit. I encountered a representation
> with points at the curve and two control points for each such point. This
> "control points" are obviously in the gradient direction (plus/minus) of the
> spline but they can have different lengths. And they influence the original
> curve heavíly. Play around with the editor of the demo-version of
> www.nolimitscoaster.com and you will see what I mean. I have not found the
> mathematical representation of this parametrisation. Did someone have a hint?
Greetings,
Splines is a generic term which regroup a lot of approach, and sometime
a single formula get know under more than one name.
You might indeed be playing with Bézier curve
http://en.wikipedia.org/wiki/B%C3%A9zier_curve
> http://en.wikipedia.org/wiki/B%C3%A9zier_curve
(yep, there is also Bézier spline :
> http://en.wikipedia.org/wiki/B%C3%A9zier_spline
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Le_Forgeron <jgr### [at] free fr> wrote:
> Greetings,
>
>
> Splines is a generic term which regroup a lot of approach, and sometime
> a single formula get know under more than one name.
>
> You might indeed be playing with Bézier curve
> http://en.wikipedia.org/wiki/B%C3%A9zier_curve
>
> > http://en.wikipedia.org/wiki/B%C3%A9zier_curve
>
> (yep, there is also Bézier spline :
> > http://en.wikipedia.org/wiki/B%C3%A9zier_spline
First I will thank you for your answer and second I will apologize for being so
hasty yesterday. I should have been more precise. The problem is in fact the
many different kinds of splines and their different parametrisations. I will
come up with a picture to detail my problem next week, since I have other issues
until that.
Thanks again and best regards,
Michael
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