Subversion Repositories gelsvn

Rev

Rev 595 | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 595 Rev 630
1 
/* ----------------------------------------------------------------------- *
 1 
/* ----------------------------------------------------------------------- *
2 
 * This file is part of GEL, http://www.imm.dtu.dk/GEL
 2 
 * This file is part of GEL, http://www.imm.dtu.dk/GEL
3 
 * Copyright (C) the authors and DTU Informatics
 3 
 * Copyright (C) the authors and DTU Informatics
4 
 * For license and list of authors, see ../../doc/intro.pdf
 4 
 * For license and list of authors, see ../../doc/intro.pdf
5 
 * ----------------------------------------------------------------------- */
 5 
 * ----------------------------------------------------------------------- */
6 
 
 6 
 
7 
/** @file ArithVec4Float.h
 7 
/** @file ArithVec4Float.h
8 
 * @brief Abstract 4D floating point vector class
 8 
 * @brief Abstract 4D floating point vector class
9 
 */
 9 
 */
10 
 
 10 
 
11 
#ifndef __CGLA_ARITHVEC4FLOAT_H__
 11 
#ifndef __CGLA_ARITHVEC4FLOAT_H__
12 
#define __CGLA_ARITHVEC4FLOAT_H__
 12 
#define __CGLA_ARITHVEC4FLOAT_H__
13 
 
 13 
 
14 
#include "ArithVecFloat.h"
 14 
#include "ArithVecFloat.h"
15 
 
 15 
 
16 
namespace CGLA {
 16 
namespace CGLA {
17 
 
 17 
 
18 
	/** \brief A four dimensional floating point vector template.
18 
	/** \brief A four dimensional floating point vector template.
19 
 
 19 
 
20 
			This class is also used (via typedef) for
 20 
			This class is also used (via typedef) for
21 
			homogeneous vectors.
 21 
			homogeneous vectors.
22 
	*/
 22 
	*/
23 
 
 23 
 
24 
	template<class T, class V>
 24 
	template<class T, class V>
25 
	class ArithVec4Float: public ArithVecFloat<T,V,4>
 25 
	class ArithVec4Float: public ArithVecFloat<T,V,4>
26 
	{
 26 
	{
27 
	public:
 27 
	public:
28
28
29 
		/// Construct a (0,0,0,0) homogenous Vector
 29 
		/// Construct a (0,0,0,0) homogenous Vector
30 
		ArithVec4Float() {}
 30 
		ArithVec4Float() {}
31 
 
 31 
 
32 
		/// Construct a 4D vector
 32 
		/// Construct a 4D vector
33 
		ArithVec4Float(T a, T b, T c, T d):
33 
		ArithVec4Float(T a, T b, T c, T d):
34 
			ArithVecFloat<T,V,4>(a,b,c,d) {}
 34 
			ArithVecFloat<T,V,4>(a,b,c,d) {}
35 
 
 35 
 
36 
		/// Divide all coordinates by the fourth coordinate
 36 
		/// Divide all coordinates by the fourth coordinate
37 
		void de_homogenize()
 37 
		void de_homogenize()
38 
		{
 38 
		{
39 
			float k = 1.0/(*this)[3];
 39 
			float k = 1.0/(*this)[3];
40 
			(*this)[0] = (*this)[0]*k;
 40 
			(*this)[0] = (*this)[0]*k;
41 
			(*this)[1] = (*this)[1]*k;
 41 
			(*this)[1] = (*this)[1]*k;
42 
			(*this)[2] = (*this)[2]*k;
 42 
			(*this)[2] = (*this)[2]*k;
43 
			(*this)[3] = 1.0;
 43 
			(*this)[3] = 1.0;
44 
		}
 44 
		}
45 
 
 45 
 
46 
	};
 46 
	};
47 
}
 47 
}
48 
#endif
 48 
#endif
49 
 
 49 
 
50 
 
 50