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The SbVec2f class is a 2 dimensional vector with floating point coordinates. More...
#include <Inventor/SbLinear.h>
Friends | |
SbVec2f | operator* (const SbVec2f &v, const float d) |
SbVec2f | operator* (const float d, const SbVec2f &v) |
SbVec2f | operator/ (const SbVec2f &v, const float d) |
SbVec2f | operator+ (const SbVec2f &v1, const SbVec2f &v2) |
SbVec2f | operator- (const SbVec2f &v1, const SbVec2f &v2) |
int | operator== (const SbVec2f &v1, const SbVec2f &v2) |
int | operator!= (const SbVec2f &v1, const SbVec2f &v2) |
Related Symbols | |
(Note that these are not member symbols.) | |
SbVec2f | operator* (const SbVec2f &v, const float d) |
SbVec2f | operator* (const float d, const SbVec2f &v) |
SbVec2f | operator/ (const SbVec2f &v, const float d) |
SbVec2f | operator+ (const SbVec2f &v1, const SbVec2f &v2) |
SbVec2f | operator- (const SbVec2f &v1, const SbVec2f &v2) |
int | operator== (const SbVec2f &v1, const SbVec2f &v2) |
int | operator!= (const SbVec2f &v1, const SbVec2f &v2) |
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 aswell as simple floating point arithmetic operations on this vector.
SbVec2f::SbVec2f | ( | void | ) |
The default constructor does nothing. The vector coordinates will be uninitialized until you do a setValue().
Referenced by operator-().
Constructs an SbVec2f instance with the initial vector endpoints from x and y.
Set new x and y coordinates for the vector from v. Returns reference to self.
Referenced by SbBox2f::extendBy(), SbBox2f::makeEmpty(), SbBox2f::setBounds(), SbBox2f::setBounds(), SbBox2f::setBounds(), SbBox2f::setBounds(), SbViewportRegion::setViewport(), and SbViewportRegion::setViewportPixels().
Set new x and y coordinates for the vector. Returns reference to self.
Calculates and returns the result of taking the dot product of this vector and v.
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().
Returns a pointer to an array of two floats containing the x and y coordinates of the vector.
Referenced by SbBox2f::getBounds().
void SbVec2f::getValue | ( | float & | x, |
float & | y | ||
) | const |
Returns the x and y coordinates of the vector.
float SbVec2f::length | ( | void | ) | const |
Return length of vector.
Referenced by normalize().
float SbVec2f::sqrLength | ( | void | ) | const |
Returns the square of the length of the vector.
float SbVec2f::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().
float & SbVec2f::operator[] | ( | const int | i | ) |
Index operator. Returns modifiable x or y coordinate.
References SoDebugError::postWarning().
Index operator. Returns x or y coordinate.
References SoDebugError::postWarning().
Multiply components of vector with value d. Returns reference to self.
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.
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 SbVec2f instance which is the components of vector v multiplied with d.
Returns an SbVec2f instance which is the components of vector v multiplied with d.
Returns an SbVec2f instance which is the components of vector v divided on the scalar factor d.
Returns an SbVec2f instance which is the sum of vectors v1 and v2.
Returns an SbVec2f 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.
Returns an SbVec2f instance which is the components of vector v multiplied with d.
Returns an SbVec2f instance which is the components of vector v multiplied with d.
Returns an SbVec2f instance which is the components of vector v divided on the scalar factor d.
Returns an SbVec2f instance which is the sum of vectors v1 and v2.
Returns an SbVec2f 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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