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#include <Inventor/SbLinear.h>
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.
Public Member Functions | |
SbVec2d (void) | |
SbVec2d (const double v[2]) | |
SbVec2d (const double x, const double y) | |
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 |
void | negate (void) |
double | normalize (void) |
SbVec2d & | setValue (const double v[2]) |
SbVec2d & | setValue (const double x, const double y) |
double & | operator[] (const int i) |
const double & | operator[] (const int i) const |
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) |
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The default constructor does nothing. The vector coordinates will be uninitialized until you do a setValue(). |
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Constructs an SbVec2d instance with initial values from v. |
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Constructs an SbVec2d instance with the initial vector endpoints from x and y. |
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Calculates and returns the result of taking the dot product of this vector and v. |
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Compares the vector with v and returns |
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Returns a pointer to an array of two double containing the x and y coordinates of the vector.
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Returns the x and y coordinates of the vector.
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Return length of vector. |
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Negate the vector (i.e. point it in the opposite direction). |
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Normalize the vector to unit length. Return value is the original length of the vector before normalization. |
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Set new x and y coordinates for the vector from v. Returns reference to self.
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Set new x and y coordinates for the vector. Returns reference to self.
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Index operator. Returns modifiable x or y coordinate.
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Index operator. Returns x or y coordinate.
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Multiply components of vector with value d. Returns reference to self. |
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Divides components of vector with value d. Returns reference to self. |
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Adds this vector and vector u. Returns reference to self. |
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Subtracts vector u from this vector. Returns reference to self. |
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Non-destructive negation operator. Returns a new SbVec2d instance which points in the opposite direction of this vector.
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Dump the state of this object to the file stream. Only works in debug version of library, method does nothing in an optimized compile. |
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Returns an SbVec2d instance which is the components of vector v multiplied with d. |
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Returns an SbVec2d instance which is the components of vector v multiplied with d. |
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Returns an SbVec2d instance which is the components of vector v divided on the scalar factor d. |
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Returns an SbVec2d instance which is the sum of vectors v1 and v2. |
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Returns an SbVec2d instance which is vector v2 subtracted from vector v1. |
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Returns 1 if v1 and v2 are equal, 0 otherwise.
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Returns 1 if v1 and v2 are not equal, 0 if they are equal.
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Copyright © 1998-2005 by Systems in Motion AS. All rights reserved.
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