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  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2002-03-21 16:57:43 UTC
  • Revision ID: james.westby@ubuntu.com-20020321165743-e9mv12c1tb1plztg
Tags: upstream-2.6
Import upstream version 2.6

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man/graphics/eval3dp.cat
 
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eval3dp           Scilab Group           Scilab Function            eval3dp
 
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NAME
 
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   eval3dp - compute facets of a 3D surface
 
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CALLING SEQUENCE
 
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 [x,y,z]=eval3dp(fun,p1,p2)
 
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PARAMETERS
 
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 x,y,z   : matrices of size (4,n-1*m-1). x(:,i) ,y(:,i) and z(:,i)  are
 
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         respectively the x-axis, y-axis and z-axis coordinates of the 4
 
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         points of  the ith four sided facet.
 
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 fun     : a Scilab function. 
 
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 p1      : a vector of size n.
 
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 p2      : a vector of size m.
 
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DESCRIPTION
 
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   eval3dp computes a four sided facets representation of a 3D surface 
 
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  defined by the function fun. fun(p1,p2) computes the  x-axis ,y-axis and
 
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  z-axis coordinates of the corresponding points on the  surface, as
 
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  [x(i),y(i),z(i)]=fun(p1(i),p2(i)). This is used for efficiency.
 
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EXAMPLE
 
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 p1=linspace(0,2*%pi,10);
 
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 p2=linspace(0,2*%pi,10);
 
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 deff("[x,y,z]=scp(p1,p2)",["x=p1.*sin(p1).*cos(p2)";..
 
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                             "y=p1.*cos(p1).*cos(p2)";..
 
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                             "z=p1.*sin(p2)"])
 
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 [x,y,z]=eval3dp(scp,p1,p2);
 
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 plot3d(x,y,z)
 
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SEE ALSO
 
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   genfac3d, plot3d
 
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