![]() |
http://www.sim.no http://www.coin3d.org |
#include <Inventor/fields/SoSFRotation.h>
Inheritance diagram for SoSFRotation:
This field is used where nodes, engines or other field containers needs to store a single rotation definition.
Fields of this type stores their value to file as a rotation axis vector plus a rotation angle: "axis0 axis1 axis2 angle".
Note that there is one very common mistake that is easy to make when setting the value of an SoSFRotation field, and that is to inadvertently use the wrong SbRotation constructor. This example should clarify the problem:
mytransformnode->rotation.setValue(0, 0, 1, 1.5707963f);
The programmer clearly tries to set a PI/2 rotation around the Z axis, but this will fail, as the SbRotation constructor invoked above is the one that takes as arguments the 4 floats of a quaternion. What the programmer almost certainly wanted to do was to use the SbRotation constructor that takes a rotation vector and a rotation angle, which is invoked like this:
mytransformnode->rotation.setValue(SbVec3f(0, 0, 1), 1.5707963f);
Public Member Functions | |
virtual SoType | getTypeId (void) const |
virtual void | copyFrom (const SoField &field) |
const SoSFRotation & | operator= (const SoSFRotation &field) |
virtual SbBool | isSame (const SoField &field) const |
const SbRotation & | getValue (void) const |
void | setValue (const SbRotation &newvalue) |
const SbRotation & | operator= (const SbRotation &newvalue) |
int | operator== (const SoSFRotation &field) const |
int | operator!= (const SoSFRotation &field) const |
void | getValue (SbVec3f &axis, float &angle) const |
void | setValue (const float q0, const float q1, const float q2, const float q3) |
void | setValue (const float q[4]) |
void | setValue (const SbVec3f &axis, const float angle) |
Static Public Member Functions | |
void * | createInstance (void) |
SoType | getClassTypeId (void) |
void | initClass (void) |
Protected Attributes | |
SbRotation | value |
|
Returns a unique type identifier for this field class.
Reimplemented from SoSField. |
|
Returns the type identification instance which uniquely identifies the Coin field class the object belongs to.
Implements SoField. |
|
Copy value(s) from f into this field. f must be of the same type as this field. Implements SoField. |
|
Check for equal type and value(s). Implements SoField. |
|
Internal method called upon initialization of the library (from SoDB::init()) to set up the type system. Reimplemented from SoSField. |
|
Return value of rotation as an axis and an angle around this axis. |
|
Set the rotation from a set of quaternion values. |
|
Set the rotation from a set of quaternion values. |
|
Set the rotation from an axis and an angle around this axis. |
Copyright © 1998-2005 by Systems in Motion AS. All rights reserved.
Generated on Sun Aug 21 16:52:49 2005 for Coin by Doxygen. 1.3.9.1