1 files changed, 27 insertions, 0 deletions
diff --git a/modules/graphics/macros/nf3d.sci b/modules/graphics/macros/nf3d.sci
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+++ b/modules/graphics/macros/nf3d.sci
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+// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+// Copyright (C) INRIA
+// This file must be used under the terms of the CeCILL.
+// This source file is licensed as described in the file COPYING, which
+// you should have received as part of this distribution.  The terms
+// are also available at
+// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
+
+function [xx,yy,zz]=nf3d(x,y,z)
+    // 3d coding transformation
+    // from facets coded in three matrices x,y,z to scilab code for facets
+    // accepted by plot3d
+    //---------------------------------------------------------
+    if argn(2)<>3 then
+        error(msprintf(gettext("%s: Wrong number of input argument(s): %d expected.\n"), "nf3d", 3));
+    end
+
+
+    [n1,n2]=size(x)
+    ind=ones(1,n1-1).*.[0 1 n1+1 n1]+ (1:n1-1).*.[1 1 1 1];
+    // ind=[1,2,n1+2,n1+1 , 2,3,n1+3,n1+2, ....  ,n1-1,n1,2n1,2n1-1
+    ind2=ones(1,n2-1).*.ind+((0:n2-2)*n1).*.ones(ind);
+    nx=prod(size(ind2))
+    xx=matrix(x(ind2),4,nx/4);
+    yy=matrix(y(ind2),4,nx/4);
+    zz=matrix(z(ind2),4,nx/4);
+endfunction