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hom_vector.h
1 
2 /***************************************************************************
3  * hom_vector.h - Homogenous vector
4  *
5  * Created: Wed Sep 26 16:58:51 2007
6  * Copyright 2007-2008 Daniel Beck
7  *
8  ****************************************************************************/
9 
10 /* This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License as published by
12  * the Free Software Foundation; either version 2 of the License, or
13  * (at your option) any later version. A runtime exception applies to
14  * this software (see LICENSE.GPL_WRE file mentioned below for details).
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19  * GNU Library General Public License for more details.
20  *
21  * Read the full text in the LICENSE.GPL_WRE file in the doc directory.
22  */
23 
24 #ifndef __GEOMETRY_HOM_VECTOR_H_
25 #define __GEOMETRY_HOM_VECTOR_H_
26 
27 #include <geometry/hom_coord.h>
28 
29 namespace fawkes {
30 
31 class HomVector : public HomCoord
32 {
33  public:
34  HomVector(float x = 0, float y = 0, float z = 0);
35  HomVector(const HomCoord& h);
36  virtual ~HomVector();
37 
38  float length() const;
39  float length_square() const;
40  HomVector& set_length(float length);
41  HomVector& unit();
42 
43  float angle_xy(const HomVector& h) const;
44 };
45 
46 } // end namespace fawkes
47 
48 #endif /* __GEOMETRY_HOM_VECTOR_H_ */
virtual float y() const
RO-getter for y.
Definition: hom_coord.cpp:115
float angle_xy(const HomVector &h) const
Compute the angle between two vectors.
Definition: hom_vector.cpp:117
HomVector & set_length(float length)
Scales the vector such that it has the given length.
Definition: hom_vector.cpp:99
HomVector & unit()
Brings the vector to unit-length.
Definition: hom_vector.cpp:87
HomVector(float x=0, float y=0, float z=0)
Constructor.
Definition: hom_vector.cpp:41
float length() const
Calculates the length of the vector.
Definition: hom_vector.cpp:69
float length_square() const
Calculates the squared length length of the vector (faster than length.
Definition: hom_vector.cpp:78
virtual float z() const
RO-getter for z.
Definition: hom_coord.cpp:145
Base class for homogeneous primitives (vector and point).
Definition: hom_coord.h:34
A homogeneous vector.
Definition: hom_vector.h:31
virtual ~HomVector()
Destructor.
Definition: hom_vector.cpp:61
virtual float x() const
RO-getter for x.
Definition: hom_coord.cpp:85