/usr/include/snlVector.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 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | // 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.
#ifndef SNLVECTOR_H
#define SNLVECTOR_H
class snlPoint;
#include "snlPoint.h"
#ifdef SGI_MIPS
#include <iostream.h>
#include <math.h>
#else
#include <iostream>
#include <cmath>
using namespace std;
#endif
class snlVector
{
public:
snlVector();
snlVector ( const snlPoint& pt1, const snlPoint& pt2, bool hmg = false ); // pt1 -> pt2. ( ie pt2 - pt1 ).
snlVector ( snlPoint& pt, bool hmg = false );
snlVector ( double x, double y, double z, double w = 0.0, bool hmg = false );
snlVector ( snlVector& v1, snlVector& v2 );
void calc ( const snlPoint& pt1, const snlPoint& pt2 );
void calcNormal ( snlPoint& pt1, snlPoint& pt2, snlPoint& pt3, snlPoint& pt4 );
void crossProduct ( snlVector& v1, snlVector& v2 );
double dot ( snlVector& vect ); // Dot product of two vectors.
double dot ( snlPoint& pt ); // Treats point as vector.
double lengthSqrd(); // Length of vector squared.
double length(); // Length of vector.
void length ( double val ); // Set length of vector.
double calcAbsCos ( snlVector& vect ); // Calculate absolute cosine of the angle between vectors.
double angle ( snlVector& vect );
void unitise(); // Don't know if this is a real word. Turn vector into unit vector.
double projectDist ( snlVector& fromVector );
snlVector project ( snlVector& ontoVector );
void projectXZ(); // Project onto the X-Z plane.
void projectXY(); // Project onto the X-Y plane.
void projectYZ(); // Project onto the Y-Z plane.
snlVector operator * ( double ); // Return vector multiplied by a scalar.
snlVector operator + ( snlVector& vect );
snlVector operator - ( snlVector& vect );
void operator += ( snlVector& vect );
void operator -= ( snlVector& vect );
void operator *= ( double ); // Multiply this vector by a scalar.
bool operator == ( snlVector& compare );
double x();
double y();
double z();
double w();
void x ( double val );
void y ( double val );
void z ( double val );
void w ( double val );
void components ( double x, double y, double z, double w );
void components ( double x, double y, double z );
void components ( double* x, double* y, double* z, double* w );
void components ( double* x, double* y, double* z );
void zero(); // Zero the vector.
bool isNull();
void print();
double elements [ 4 ];
bool homogeneous; // If true then is a 4-D vector.
};
#endif
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