80 lines
2.6 KiB
C++
80 lines
2.6 KiB
C++
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/*
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----
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This file is part of SECONDO.
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Copyright (C) 2004, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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----
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This file was originally written by Christopher John Kline, under the copy
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right statement below. Mahomud Sakr, September 2011, has made the necessary
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changes to make it available as a SECONDO operator.
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Copyright (C) 1996, Christopher John Kline
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Electronic mail: ckline@acm.org
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This software may be freely copied, modified, and redistributed
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for academic purposes and by not-for-profit organizations, provided that
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this copyright notice is preserved on all copies, and that the source
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code is included or notice is given informing the end-user that the source
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code is publicly available under the terms described here.
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Persons or organizations wishing to use this code or any modified version
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of this code in a commercial and/or for-profit manner must contact the
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author via electronic mail (preferred) or other method to arrange the terms
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of usage. These terms may be as simple as giving the author visible credit
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in the final product.
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There is no warranty or other guarantee of fitness for this software,
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it is provided solely "as is". Bug reports or fixes may be sent
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to the author, who may or may not act on them as he desires.
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If you use this software the author politely requests that you inform him
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via electronic mail.
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Vector.c++
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CODE: Class for 3-vectors with double precision
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(c) 1996 Christopher Kline <ckline@acm.org>
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September 2011 Mahmoud Sakr: The Boids simulator/data-generator is now
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available as a SECONDO operator.
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*/
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#include "Vector.h"
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using namespace std;
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MathVector
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Average(int numvectors, MathVector a, ...) {
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MathVector v = a;
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va_list arg_ptr;
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int i;
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va_start(arg_ptr, a);
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for (i=0; i<numvectors-1; i++)
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v += va_arg(arg_ptr, MathVector);
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va_end(arg_ptr);
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v.x /= numvectors; v.y /= numvectors; v.z /= numvectors;
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return(v);
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}
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