SbVec2d.3coin4 - Man Page

The SbVec2d class is a 2 dimensional vector with double precision floating point coordinates.

Synopsis

#include <Inventor/SbVec2d.h>

Public Member Functions

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

Protected Attributes

double vec [2]

Detailed Description

The SbVec2d class is a 2 dimensional vector with double precision 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, SbVec2f, SbVec3s, SbVec3f, SbVec3d, SbVec4f, SbVec4d.

Constructor & Destructor Documentation

SbVec2d::SbVec2d (void) [inline]

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

SbVec2d::SbVec2d (const double v[2]) [inline]

Constructs an SbVec2d instance with initial values from v.

SbVec2d::SbVec2d (double x, double y) [inline]

Constructs an SbVec2d instance with the initial vector endpoints from x and y.

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

Constructs an SbVec2d instance from an SbVec2f instance.

Since

Coin 2.5

SbVec2d::SbVec2d (const SbVec2b & v) [inline], [explicit]

Constructs an SbVec2d instance from an SbVec2b instance.

Since

Coin 2.5

SbVec2d::SbVec2d (const SbVec2s & v) [inline], [explicit]

Constructs an SbVec2d instance from an SbVec2s instance.

Since

Coin 2.5

SbVec2d::SbVec2d (const SbVec2i32 & v) [inline], [explicit]

Constructs an SbVec2d instance from an SbVec2i32 instance.

Since

Coin 2.5

Member Function Documentation

SbVec2d & SbVec2d::setValue (const double v[2]) [inline]

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

See also

getValue().

SbVec2d & SbVec2d::setValue (double x, double y) [inline]

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

See also

getValue().

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

Sets the value from an SbVec2f instance. Returns reference to itself.

Since

Coin 2.5

SbVec2d & SbVec2d::setValue (const SbVec2b & v)

Sets the value from an SbVec2b instance. Returns reference to itself.

Since

Coin 2.5

SbVec2d & SbVec2d::setValue (const SbVec2s & v)

Sets the value from an SbVec2s instance. Returns reference to itself.

Since

Coin 2.5

SbVec2d & SbVec2d::setValue (const SbVec2i32 & v)

Sets the value from an SbVec2i32 instance. Returns reference to itself.

Since

Coin 2.5

const double * SbVec2d::getValue (void) const [inline]

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

See also

setValue().

void SbVec2d::getValue (double & x, double & y) const [inline]

Returns the x and y coordinates of the vector.

See also

setValue().

double & SbVec2d::operator[] (int i) [inline]

Index operator. Returns modifiable x or y coordinate.

See also

getValue() and setValue().

const double & SbVec2d::operator[] (int i) const [inline]

Index operator. Returns x or y coordinate.

See also

getValue().

SbBool SbVec2d::equals (const SbVec2d & v, double 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.

double SbVec2d::dot (const SbVec2d & v) const [inline]

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

double SbVec2d::length (void) const

Return length of vector.

double SbVec2d::normalize (void)

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

void SbVec2d::negate (void) [inline]

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

SbVec2d & SbVec2d::operator*= (double d) [inline]

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

SbVec2d & SbVec2d::operator/= (double d) [inline]

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

SbVec2d & SbVec2d::operator+= (const SbVec2d & v) [inline]

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

SbVec2d & SbVec2d::operator-= (const SbVec2d & v) [inline]

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

SbVec2d SbVec2d::operator- (void) const [inline]

Non-destructive negation operator. Returns a new SbVec2d instance which points in the opposite direction of this vector.

See also

negate().

void SbVec2d::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