The SbVec4f class is a 4 dimensional vector with floating point coordinates.
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#include <Inventor/SbVec4f.h>
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| SbVec4f (void) |
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| SbVec4f (const float v[4]) |
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| SbVec4f (float x, float y, float z, float w) |
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| SbVec4f (const SbVec4d &v) |
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| SbVec4f (const SbVec4b &v) |
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| SbVec4f (const SbVec4s &v) |
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| SbVec4f (const SbVec4i32 &v) |
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SbVec4f & | setValue (const float v[4]) |
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SbVec4f & | setValue (float x, float y, float z, float w) |
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SbVec4f & | setValue (const SbVec4d &v) |
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SbVec4f & | setValue (const SbVec4b &v) |
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SbVec4f & | setValue (const SbVec4s &v) |
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SbVec4f & | setValue (const SbVec4i32 &v) |
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const float * | getValue (void) const |
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void | getValue (float &x, float &y, float &z, float &w) const |
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float & | operator[] (int i) |
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const float & | operator[] (int i) const |
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SbBool | equals (const SbVec4f &v, float tolerance) const |
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float | dot (const SbVec4f &v) const |
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void | getReal (SbVec3f &v) const |
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float | length (void) const |
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float | sqrLength (void) const |
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void | negate (void) |
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float | normalize (void) |
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SbVec4f & | operator*= (float d) |
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SbVec4f & | operator/= (float d) |
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SbVec4f & | operator+= (const SbVec4f &v) |
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SbVec4f & | operator-= (const SbVec4f &v) |
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SbVec4f | operator- (void) const |
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void | print (FILE *fp) const |
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The SbVec4f class is a 4 dimensional vector with floating point coordinates.
This vector class is used by many other classes in Coin. It provides storage for a 3 dimensional homogeneoues vector (with the 4 components usually referred to as <x, y, z, w>) as well as simple floating point arithmetic operations.
- See also
- SbVec2s, SbVec2f, SbVec2d, SbVec3s, SbVec3f, SbVec3d, SbVec4d.
◆ SbVec4f() [1/7]
SbVec4f::SbVec4f |
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void |
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inline |
The default constructor does nothing. The vector coordinates will be uninitialized until a call the setValue().
◆ SbVec4f() [2/7]
SbVec4f::SbVec4f |
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const float |
v[4] | ) |
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inline |
Constructs an SbVec4f instance with initial values from v.
◆ SbVec4f() [3/7]
SbVec4f::SbVec4f |
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float |
x, |
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float |
y, |
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float |
z, |
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float |
w |
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) |
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inline |
Constructs an SbVec4f instance with the initial homogeneous vector set to <x,y,z,w>.
◆ SbVec4f() [4/7]
SbVec4f::SbVec4f |
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const SbVec4d & |
v | ) |
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inlineexplicit |
◆ SbVec4f() [5/7]
SbVec4f::SbVec4f |
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const SbVec4b & |
v | ) |
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inlineexplicit |
Constructs an SbVec4f instance from an SbVec4b instance.
- Since
- Coin 2.5
◆ SbVec4f() [6/7]
SbVec4f::SbVec4f |
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const SbVec4s & |
v | ) |
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inlineexplicit |
Constructs an SbVec4f instance from an SbVec4s instance.
- Since
- Coin 2.5
◆ SbVec4f() [7/7]
◆ setValue() [1/6]
SbVec4f & SbVec4f::setValue |
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const float |
v[4] | ) |
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inline |
Set new coordinates for the vector from v. Returns reference to self.
- See also
- getValue().
◆ setValue() [2/6]
SbVec4f & SbVec4f::setValue |
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float |
x, |
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float |
y, |
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float |
z, |
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float |
w |
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) |
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inline |
Set new coordinates for the vector. Returns reference to self.
- See also
- getValue().
◆ setValue() [3/6]
Sets the value from an SbVec4d instance.
◆ setValue() [4/6]
◆ setValue() [5/6]
◆ setValue() [6/6]
◆ getValue() [1/2]
const float * SbVec4f::getValue |
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void |
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const |
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inline |
Returns a pointer to an array of four floats containing the x, y, z and w coordinates of the vector.
- See also
- setValue().
◆ getValue() [2/2]
void SbVec4f::getValue |
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float & |
x, |
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float & |
y, |
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float & |
z, |
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float & |
w |
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inline |
Returns the x, y, z and w coordinates of the vector.
- See also
- setValue().
◆ operator[]() [1/2]
float & SbVec4f::operator[] |
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int |
i | ) |
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inline |
Index operator. Returns modifiable x, y, z or w component of vector.
- See also
- getValue() and setValue().
◆ operator[]() [2/2]
const float & SbVec4f::operator[] |
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int |
i | ) |
const |
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inline |
◆ equals()
SbBool SbVec4f::equals |
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const SbVec4f & |
v, |
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float |
tolerance |
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Compares the vector with v and returns TRUE
if the distance between the vectors is smaller or equal to the square root of tolerance.
The comparison is done in 4D-space, i.e. the w component of the vector is not used to make x, y and z into Cartesian coordinates first.
◆ dot()
float SbVec4f::dot |
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const SbVec4f & |
v | ) |
const |
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inline |
Calculates and returns the result of taking the dot product of this vector and v.
◆ getReal()
void SbVec4f::getReal |
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SbVec3f & |
v | ) |
const |
Returns the vector as a Cartesian 3D vector in v. This means that the 3 first components x, y and z will be divided by the fourth, w.
◆ length()
float SbVec4f::length |
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void |
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const |
Return the length of the vector in 4D space.
◆ sqrLength()
float SbVec4f::sqrLength |
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void |
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const |
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inline |
Return the square of the length of the vector in 4D space.
◆ negate()
void SbVec4f::negate |
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void |
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inline |
◆ normalize()
float SbVec4f::normalize |
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void |
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Normalize the vector to unit length. Return value is the original length of the vector before normalization.
◆ operator*=()
SbVec4f & SbVec4f::operator*= |
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float |
d | ) |
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inline |
Multiply components of vector with value d. Returns reference to self.
◆ operator/=()
SbVec4f & SbVec4f::operator/= |
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float |
d | ) |
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inline |
Divides components of vector with value d. Returns reference to self.
◆ operator+=()
Adds this vector and vector v. Returns reference to self.
◆ operator-=()
Subtracts vector v from this vector. Returns reference to self.
◆ operator-()
SbVec4f SbVec4f::operator- |
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void |
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const |
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inline |
Non-destructive negation operator. Returns a new SbVec4f instance which has all components negated.
- See also
- negate().
◆ print()
void SbVec4f::print |
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FILE * |
fp | ) |
const |
Dump the state of this object to the file stream. Only works in debug version of library, method does nothing in an optimized compile.
◆ operator*() [1/2]
Returns an SbVec4f instance which is the components of vector v multiplied with d.
◆ operator*() [2/2]
Returns an SbVec4f instance which is the components of vector v multiplied with d.
◆ operator/()
Returns an SbVec4f instance which is the components of vector v divided on the scalar factor d.
◆ operator+()
Returns an SbVec4f instance which is the sum of vectors v1 and v2.
◆ operator-()
Returns an SbVec4f instance which is vector v2 subtracted from vector v1.
◆ operator==()
Returns 1 if v1 and v2 are equal, 0 otherwise.
- See also
- equals().
◆ operator!=()
Returns 1 if v1 and v2 are not equal, 0 if they are equal.
- See also
- equals().
The documentation for this class was generated from the following files: