Re: how to compute the surface defined by a given contour?

[Rui Maciel]

On 12/10/2010 02:29 PM, trophime wrote:
> Now I would like to get the surface (in the (X,Y) plane) defined by this
> contour?
> Is it possible to compute the gravity point of the contour?
This isn't an Octave issue per se.  You can get the surface defined by 
your contour by integrating that surface and you get the "gravity point" 
of your contour by calculating the 1st moment of area of your surface.  
As Octave is designed to perform numerical computations and isn't a 
computer algebra system, I don't believe that it provides a routine to 
handle that.


Hope this helps,
Rui Maciel