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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/plot3d1.man
 
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.TH plot3d1 2 "April 1993" "Scilab Group" "Scilab Function"
 
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.so ../sci.an
 
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.SH NAME
 
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plot3d1 - 3D gray or color level plot of a surface
 
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.SH DESCRIPTION
 
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.nf
 
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plot3d1(x,y,z,[theta,alpha,leg,flag,ebox])
 
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plot3d1(xf,yf,zf,[theta,alpha,leg,flag,ebox])
 
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.fi
 
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.SH PARAMETERS
 
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See \fVplot3d\fR for a full description. There is just a slight
 
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difference, only the sign of the \fVflag(1)=mode\fR parameter is used:
 
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if it is negative the grid is not drawn. 
 
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.SH DESCRIPTION
 
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\fVplot3d\fR plots a surface \fVz=f(x,y)\fR
 
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with colors depending on the z-level of the surface.
 
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Enter the command \fVplot3d1()\fR to see a demo.
 
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.SH EXAMPLE 
 
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.nf
 
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// simple plot using z=f(x,y)
 
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t=[0:0.3:2*%pi]'; z=sin(t)*cos(t');
 
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plot3d1(t,t,z)
 
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// same plot using facets computed by genfac3d
 
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[xx,yy,zz]=genfac3d(t,t,z);
 
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xbasc()
 
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plot3d1(xx,yy,zz)
 
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// multiple plots
 
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xbasc()
 
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plot3d1([xx xx],[yy yy],[zz 4+zz])
 
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// simple plot with viewpoint and captions
 
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xbasc()
 
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plot3d1(1:10,1:20,10*rand(10,20),35,45,"X@Y@Z",[2,2,3])
 
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// same plot without grid
 
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xbasc()
 
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plot3d1(1:10,1:20,10*rand(10,20),35,45,"X@Y@Z",[-2,2,3])
 
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// plot of a sphere using facets computed by eval3dp
 
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deff("[x,y,z]=sph(alp,tet)",["x=r*cos(alp).*cos(tet)+orig(1)*ones(tet)";..
 
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  "y=r*cos(alp).*sin(tet)+orig(2)*ones(tet)";..
 
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  "z=r*sin(alp)+orig(3)*ones(tet)"]);
 
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r=1; orig=[0 0 0];
 
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[xx,yy,zz]=eval3dp(sph,linspace(-%pi/2,%pi/2,40),linspace(0,%pi*2,20));
 
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xbasc()
 
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plot3d1(xx,yy,zz)
 
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.fi
 
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.SH SEE ALSO
 
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plot3d
 
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.SH AUTHOR
 
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J.Ph.C.