SbVec2f.3coin4 - Man Page

The SbVec2f class is a 2 dimensional vector with floating point coordinates.

Synopsis

#include <Inventor/SbVec2f.h>

Public Member Functions

SbVec2f (void)
SbVec2f (const float v[2])
SbVec2f (float x, float y)
SbVec2f (const SbVec2d &v)
SbVec2f (const SbVec2b &v)
SbVec2f (const SbVec2s &v)
SbVec2f (const SbVec2i32 &v)
SbVec2f & setValue (const float v[2])
SbVec2f & setValue (float x, float y)
SbVec2f & setValue (const SbVec2d &v)
SbVec2f & setValue (const SbVec2b &v)
SbVec2f & setValue (const SbVec2s &v)
SbVec2f & setValue (const SbVec2i32 &v)
const float * getValue (void) const
void getValue (float &x, float &y) const
float & operator[] (int i)
const float & operator[] (int i) const
float dot (const SbVec2f &v) const
SbBool equals (const SbVec2f &v, float tolerance) const
float length (void) const
float sqrLength (void) const
void negate (void)
float normalize (void)
SbVec2f & operator*= (float d)
SbVec2f & operator/= (float d)
SbVec2f & operator+= (const SbVec2f &v)
SbVec2f & operator-= (const SbVec2f &v)
SbVec2f operator- (void) const
SbString toString () const
SbBool fromString (const SbString &str)
void print (FILE *fp) const

Protected Attributes

float vec [2]

Detailed Description

The SbVec2f class is a 2 dimensional vector with floating point coordinates.

This vector class is used by many other classes in Coin. It provides storage for a vector in 2 dimensions as well as simple floating point arithmetic operations on this vector.

See also

SbVec2s, SbVec2d, SbVec3s, SbVec3f, SbVec3d, SbVec4f, SbVec4d.

Constructor & Destructor Documentation

SbVec2f::SbVec2f (void) [inline]

The default constructor does nothing. The vector coordinates will be uninitialized until you do a setValue().

SbVec2f::SbVec2f (const float v[2]) [inline]

Constructs an SbVec2f instance with initial values from v.

SbVec2f::SbVec2f (float x, float y) [inline]

Constructs an SbVec2f instance with the initial vector endpoints from x and y.

SbVec2f::SbVec2f (const SbVec2d & v) [inline], [explicit]

Constructs an instance from an SbVec2d instance.

Since

Coin 2.5

SbVec2f::SbVec2f (const SbVec2b & v) [inline], [explicit]

Constructs an instance from an SbVec2d instance.

Since

Coin 2.5

SbVec2f::SbVec2f (const SbVec2s & v) [inline], [explicit]

Constructs an instance from an SbVec2d instance.

Since

Coin 2.5

SbVec2f::SbVec2f (const SbVec2i32 & v) [inline], [explicit]

Constructs an instance from an SbVec2d instance.

Since

Coin 2.5

Member Function Documentation

SbVec2f & SbVec2f::setValue (const float v[2]) [inline]

Set new x and y coordinates for the vector from v. Returns reference to self.

See also

getValue().

SbVec2f & SbVec2f::setValue (float x, float y) [inline]

Set new x and y coordinates for the vector. Returns reference to self.

See also

getValue().

SbVec2f & SbVec2f::setValue (const SbVec2d & v)

Sets the value from an SbVec2d instance.

Since

Coin 2.5

SbVec2f & SbVec2f::setValue (const SbVec2b & v)

Sets the value from an SbVec2b instance.

Since

Coin 2.5

SbVec2f & SbVec2f::setValue (const SbVec2s & v)

Sets the value from an SbVec2s instance.

Since

Coin 2.5

SbVec2f & SbVec2f::setValue (const SbVec2i32 & v)

Sets the value from an SbVec2i32 instance.

Since

Coin 2.5

const float * SbVec2f::getValue (void) const [inline]

Returns a pointer to an array of two floats containing the x and y coordinates of the vector.

See also

setValue().

void SbVec2f::getValue (float & x, float & y) const [inline]

Returns the x and y coordinates of the vector.

See also

setValue().

float & SbVec2f::operator[] (int i) [inline]

Index operator. Returns modifiable x or y coordinate.

See also

getValue() and setValue().

const float & SbVec2f::operator[] (int i) const [inline]

Index operator. Returns x or y coordinate.

See also

getValue().

float SbVec2f::dot (const SbVec2f & v) const [inline]

Calculates and returns the result of taking the dot product of this vector and v.

SbBool SbVec2f::equals (const SbVec2f & v, float tolerance) const

Compares the vector with v and returns TRUE if the distance between the vectors is smaller or equal to the square root of tolerance.

float SbVec2f::length (void) const

Return length of vector.

float SbVec2f::sqrLength (void) const [inline]

Returns the square of the length of the vector.

Since

Coin 2.5

void SbVec2f::negate (void) [inline]

Negate the vector (i.e. point it in the opposite direction).

float SbVec2f::normalize (void)

Normalize the vector to unit length. Return value is the original length of the vector before normalization.

SbVec2f & SbVec2f::operator*= (float d) [inline]

Multiply components of vector with value d. Returns reference to self.

SbVec2f & SbVec2f::operator/= (float d) [inline]

Divides components of vector with value d. Returns reference to self.

SbVec2f & SbVec2f::operator+= (const SbVec2f & v) [inline]

Adds this vector and vector u. Returns reference to self.

SbVec2f & SbVec2f::operator-= (const SbVec2f & v) [inline]

Subtracts vector u from this vector. Returns reference to self.

SbVec2f SbVec2f::operator- (void) const [inline]

Non-destructive negation operator. Returns a new SbVec2f instance which points in the opposite direction of this vector.

See also

negate().

SbString SbVec2f::toString () const

Return a string representation of this object

SbBool SbVec2f::fromString (const SbString & str)

Convert from a string representation, return wether this is a valid conversion

void SbVec2f::print (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.

Author

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Info

Sat Aug 1 2020 Version 4.0.0 Coin