1SbVec2f(3IV)()                                                  SbVec2f(3IV)()
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NAME

6       SbVec2f — 2D vector class
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INHERITS FROM

9       SbVec2f
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SYNOPSIS

12       #include <Inventor/SbLinear.h>
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14          Methods from class SbVec2f:
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16                         SbVec2f()
17                         SbVec2f(const float v[2])
18                         SbVec2f(float x, float y)
19     float               dot(const SbVec2f &v) const
20     SbBool              equals(const SbVec2f v, float tolerance) const
21     const float *       getValue() const
22     void                getValue(float &x, float &y) const
23     float               length() const
24     void                negate()
25     float               normalize()
26     SbVec2f &           setValue(const float v[2])
27     SbVec2f &           setValue(float x, float y)
28     float &             operator [](int i)
29     const float &       operator [](int i)
30     SbVec2f &           operator *=(float d)
31     SbVec2f &           operator /=(float d)
32     SbVec2f &           operator +=(const SbVec2f &u)
33     SbVec2f &           operator -=(const SbVec2f &u)
34     SbVec2f             operator -() const
35     SbVec2f             operator *(const SbVec2f &v, float d)
36     SbVec2f             operator *(float d, const SbVec2f &v)
37     SbVec2f             operator /(const SbVec2f &v, float d)
38     SbVec2f             operator +(const SbVec2f &v1, const SbVec2f &v2)
39     SbVec2f             operator -(const SbVec2f &v1, const SbVec2f &v2)
40     int                 operator ==(const SbVec2f &v1, const SbVec2f &v2)
41     int                 operator !=(const SbVec2f &v1, const SbVec2f &v2)
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DESCRIPTION

45       2D vector class used to store 2D vectors and points. This class is used
46       throughout Inventor for arguments and return values.
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METHODS

49                         SbVec2f()
50          Default constructor.
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52                         SbVec2f(const float v[2])
53                         SbVec2f(float x, float y)
54          Constructor given vector components.
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56     float               dot(const SbVec2f &v) const
57          Returns dot (inner) product of vector and another vector.
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59     SbBool              equals(const SbVec2f v, float tolerance) const
60          Equality comparison within given  tolerance  —  the  square  of  the
61          length of the maximum distance between the two vectors.
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63     const float *       getValue() const
64     void                getValue(float &x, float &y) const
65          Returns vector components.
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67     float               length() const
68          Returns geometric length of vector.
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70     void                negate()
71          Negates each component of vector in place.
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73     float               normalize()
74          Changes vector to be unit length.
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76     SbVec2f &           setValue(const float v[2])
77     SbVec2f &           setValue(float x, float y)
78          Sets the vector components.
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80     float &             operator [](int i)
81     const float &       operator [](int i)
82          Accesses indexed component of vector.
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84     SbVec2f &           operator *=(float d)
85     SbVec2f &           operator /=(float d)
86          Component-wise scalar multiplication and division operators.
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88     SbVec2f &           operator +=(const SbVec2f &u)
89     SbVec2f &           operator -=(const SbVec2f &u)
90          Component-wise vector addition and subtraction operators.
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92     SbVec2f             operator -() const
93          Nondestructive unary negation — returns a new vector.
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95     SbVec2f             operator *(const SbVec2f &v, float d)
96     SbVec2f             operator *(float d, const SbVec2f &v)
97     SbVec2f             operator /(const SbVec2f &v, float d)
98          Component-wise binary scalar multiplication and division operators.
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100     SbVec2f             operator +(const SbVec2f &v1, const SbVec2f &v2)
101     SbVec2f             operator -(const SbVec2f &v1, const SbVec2f &v2)
102          Component-wise binary vector addition and subtraction operators.
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104     int                 operator ==(const SbVec2f &v1, const SbVec2f &v2)
105     int                 operator !=(const SbVec2f &v1, const SbVec2f &v2)
106          Equality comparison operators.
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SEE ALSO

110       SbVec3f, SbVec4f, SbVec2s, SbRotation
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115                                                                SbVec2f(3IV)()