/usr/include/snlMatrix_4x4.h is in libsnl-dev 0.2.1.svn.18-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 | // libSNL - Simple Nurbs Library
// Copyright Scott A.E. Lanham, Australia.
// ---------------------------------------
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// *** 4x4 Matrix of doubles ***
#ifndef SNLMATRIX4X4_H
#define SNLMATRIX4X4_H
#include "snlPoint.h"
#ifdef SGI_MIPS
#include <iostream.h>
#include <math.h>
#else
#include <iostream>
#include <cmath>
using namespace std;
#endif
class snlMatrix_4X4
{
// Matrix optimised for size 4 X 4 of double
public:
snlMatrix_4X4();
virtual ~snlMatrix_4X4();
snlMatrix_4X4 ( snlMatrix_4X4& copyFrom );
void ident(); // Set matrix to identity.
void translateIdent ( double x, double y, double z ); // Setup matrix as translation identity.
void rotateXIdent ( double yy, double yz, double zy, double zz );
void rotateYIdent ( double xx, double xz, double zx, double zz );
void rotateZIdent ( double xx, double xy, double yx, double yy );
void scaleIdent ( double x, double y, double z );
void multiply ( snlMatrix_4X4&, bool pre = false ); // Multiply this matrix by given matrix.
void transform ( snlPoint* ); // Transform given point with matrix.
double* elements();
void print(); //!< Print matrice to standard out.
protected:
double* element; // OpenGL style array. NOT c/c++.
double* scratch; // Scratch space for matrix multiplication etc.
};
#endif
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