SoModelScaleElement Class Reference
[Elements]
Stores the current model scale. More...
#include <Inventor/elements/SoModelScaleElement.h>
Public Member Functions | |
| const SbVec3f | getScaleFactor () const |
Static Public Member Functions | |
| static SoType | getClassTypeId () |
| static int | getClassStackIndex () |
| static const SbVec3f | getScaleFactor (SoState *state) |
Detailed Description
Stores the current model scale.
This is just to redefine the match method to track just the scale portion of the model matrix and to use this element to filter changes not related to scaling. Not all the SoModelMatrix are diagonalizable because a SoMatrixTransform or a direct set of the SoModelMatrix with a not diagonalizable matrix, so the getScaleFactor can return a vector containing one or more NaN or zeros. This element has some limitation related to the way transformation also rigid ones are accumulated. So please use it with attention also because for the moment the SbMatrix::getTransform method does not return any status
This element stores just the scale pportion of the current model matrix the cumulative transformation applied to subsequent shapes. Because the matrix is cumulative, this class is derived from SoAccumulatedElement. The set() method replaces the current matrix, while all the others (mult(), translateBy(), etc.) multiply into it. Node id's of the nodes that affect the element are accumulated properly.
SEE ALSO
SoMatrixTransform, SoRotation, SoRotationXYZ, SoScale, SoTransform, SoTranslation, SoUnits
Member Function Documentation
| static int SoModelScaleElement::getClassStackIndex | ( | ) | [static] |
Returns the stack id for this element.
Reimplemented from SoModelMatrixElement.
| static SoType SoModelScaleElement::getClassTypeId | ( | ) | [static] |
Returns the type identifier for this class.
Reimplemented from SoModelMatrixElement.
| const SbVec3f SoModelScaleElement::getScaleFactor | ( | ) | const |
Returns the of this element model scale - if the overall SoModelMatrix is diagonazible Not all the SoModelMatrix are diagonalizable because a SoMatrixTransform or a direct set of the SoModelMatrix with a not diagonalizable matrix, so the getScaleFactor can return a vector containing one or more NaN or zeros.
Returns current model scale - if the overall SoModelMatrix is diagonazible Not all the SoModelMatrix are diagonalizable because a SoMatrixTransform or a direct set of the SoModelMatrix with a not diagonalizable matrix, so the getScaleFactor can return a vector containing one or more NaN or zeros.
The documentation for this class was generated from the following file:
- Inventor/elements/SoModelScaleElement.h