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The SbVec2d class is a 2 dimensional vector with double precision floating point coordinates. More...
#include <Inventor/SbLinear.h>
Public Member Functions | |
SbVec2d (void) | |
SbVec2d (const double v[2]) | |
SbVec2d (const double x, const 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 (const double x, const double y) |
SbVec2d & | setValue (const SbVec2f &v) |
SbVec2d & | setValue (const SbVec2b &v) |
SbVec2d & | setValue (const SbVec2s &v) |
SbVec2d & | setValue (const SbVec2i32 &v) |
double & | operator[] (const int i) |
const double & | operator[] (const int i) const |
double | dot (const SbVec2d &v) const |
SbBool | equals (const SbVec2d &v, const double tolerance) const |
const double * | getValue (void) const |
void | getValue (double &x, double &y) const |
double | length (void) const |
double | sqrLength (void) const |
void | negate (void) |
double | normalize (void) |
SbVec2d & | operator*= (const double d) |
SbVec2d & | operator/= (const double d) |
SbVec2d & | operator+= (const SbVec2d &u) |
SbVec2d & | operator-= (const SbVec2d &u) |
SbVec2d | operator- (void) const |
void | print (FILE *fp) const |
Friends | |
SbVec2d | operator* (const SbVec2d &v, const double d) |
SbVec2d | operator* (const double d, const SbVec2d &v) |
SbVec2d | operator/ (const SbVec2d &v, const double d) |
SbVec2d | operator+ (const SbVec2d &v1, const SbVec2d &v2) |
SbVec2d | operator- (const SbVec2d &v1, const SbVec2d &v2) |
int | operator== (const SbVec2d &v1, const SbVec2d &v2) |
int | operator!= (const SbVec2d &v1, const SbVec2d &v2) |
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 aswell as simple floating point arithmetic operations on this vector.
SbVec2d::SbVec2d | ( | void | ) |
The default constructor does nothing. The vector coordinates will be uninitialized until you do a setValue().
Referenced by operator-().
SbVec2d::SbVec2d | ( | const double | v[2] | ) |
Constructs an SbVec2d instance with initial values from v.
SbVec2d::SbVec2d | ( | const double | x, |
const double | y | ||
) |
Constructs an SbVec2d instance with the initial vector endpoints from x and y.
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inlineexplicit |
Constructs an SbVec2d instance with initial values from the vector v.
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inlineexplicit |
Constructs an SbVec2d instance with initial values from the vector v.
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inlineexplicit |
Constructs an SbVec2d instance with initial values from the vector v.
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inlineexplicit |
Constructs an SbVec2d instance with initial values from the vector v.
SbVec2d & SbVec2d::setValue | ( | const double | v[2] | ) |
Set new x and y coordinates for the vector from v. Returns reference to self.
Referenced by SbBox2d::extendBy(), SbBox2d::makeEmpty(), and SbBox2d::setBounds().
SbVec2d & SbVec2d::setValue | ( | const double | x, |
const double | y | ||
) |
Set new x and y coordinates for the vector. Returns reference to self.
Set new value from an SbVec2f instance. Returns reference to self.
Sets the value from an SbVec2b instance. Returns reference to itself.
Sets the value from an SbVec2s instance. Returns reference to itself.
Sets the value from an SbVec2i32 instance. Returns reference to itself.
double & SbVec2d::operator[] | ( | const int | i | ) |
Index operator. Returns modifiable x or y coordinate.
References SoDebugError::postWarning().
const double & SbVec2d::operator[] | ( | const int | i | ) | const |
Index operator. Returns x or y coordinate.
References SoDebugError::postWarning().
double SbVec2d::dot | ( | const SbVec2d & | v | ) | const |
Calculates and returns the result of taking the dot product of this vector and v.
SbBool SbVec2d::equals | ( | const SbVec2d & | v, |
const 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.
References SoDebugError::postWarning().
const double * SbVec2d::getValue | ( | void | ) | const |
Returns a pointer to an array of two double containing the x and y coordinates of the vector.
Referenced by SbBox2d::getBounds().
void SbVec2d::getValue | ( | double & | x, |
double & | y | ||
) | const |
Returns the x and y coordinates of the vector.
double SbVec2d::length | ( | void | ) | const |
Return length of vector.
Referenced by normalize().
double SbVec2d::sqrLength | ( | void | ) | const |
Return length of vector.
void SbVec2d::negate | ( | void | ) |
Negate the vector (i.e. point it in the opposite direction).
double SbVec2d::normalize | ( | void | ) |
Normalize the vector to unit length. Return value is the original length of the vector before normalization.
References length(), operator/=(), and SoDebugError::postWarning().
SbVec2d & SbVec2d::operator*= | ( | const double | d | ) |
Multiply components of vector with value d. Returns reference to self.
SbVec2d & SbVec2d::operator/= | ( | const double | d | ) |
Divides components of vector with value d. Returns reference to self.
References SoDebugError::postWarning().
Referenced by normalize().
Adds this vector and vector u. Returns reference to self.
Subtracts vector u from this vector. Returns reference to self.
SbVec2d SbVec2d::operator- | ( | void | ) | const |
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.
Returns an SbVec2d instance which is the components of vector v multiplied with d.
Returns an SbVec2d instance which is the components of vector v multiplied with d.
Returns an SbVec2d instance which is the components of vector v divided on the scalar factor d.
Returns an SbVec2d instance which is the sum of vectors v1 and v2.
Returns an SbVec2d instance which is vector v2 subtracted from vector v1.
Returns 1 if v1 and v2 are equal, 0 otherwise.
Returns 1 if v1 and v2 are not equal, 0 if they are equal.
Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.
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