[GiDlist] Parametric surfaces with dependent parameters on b

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amit Dhankhar

[GiDlist] Parametric surfaces with dependent parameters on b

Postby amit Dhankhar » Tue Nov 25, 2014 9:32 pm

Hi,

Would it be possible to have dependent parameters (on boundary) while
creating a parametric surface in GID? For example, would it handle a case
like if I am using this- ( Limit for parameter 'u' depends on parameter
'v', seems not to work)

[image: Inline image 2]
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escolano
Posts: 1566
Joined: Thu Sep 18, 2014 3:31 pm

[GiDlist] Parametric surfaces with dependent parameters on b

Postby escolano » Wed Nov 26, 2014 12:34 pm

It is not possible to set a parameter u or v as a function of the other.

The only that you could do is to write the u limit numeric values or a formulae that uses the constant pi (e.g. 2*pi)



The space parameter of a NURBS surface must be a rectangle (a square [0,1]x[0,1] normalized)

and the 3D surface must be topologically also a kind of ‘curved rectangle’



This tool create a NURBS surface by trying to interpolate a collection of ‘near-parallel’ v=constant curves by a cubical NURBS.



In your example it seems that you are trying to degenerate the square to a triangle, this is not valid for the interpolation.



Regards



Enrique



De: gidlist-bounces at listas.cimne.upc.edu [mailto:gidlist-bounces at listas.cimne.upc.edu] En nombre de amit Dhankhar
Enviado el: martes, 25 de noviembre de 2014 21:33
Para: gidlist at listas.cimne.upc.edu
Asunto: [GiDlist] Parametric surfaces with dependent parameters on boundary



Hi,

Would it be possible to have dependent parameters (on boundary) while creating a parametric surface in GID? For example, would it handle a case like if I am using this- ( Limit for parameter 'u' depends on parameter 'v', seems not to work)

Inline image 2

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