Detailed Description
- See also:
- Class Matrix3, Class Quat, Class Point, Class ScaleValue.
- Remarks:
- This structure and the associated functions provide a way to
decompose an arbitrary Matrix3 into its translation, rotation,
and scale components.
To use these APIs put the following statement in your source file:
#include "decomp.h"
For a full discussion of this decomposition see Graphics Gems IV - Polar Matrix Decomposition by Ken Shoemake. ISBN 0-12-336155-9.
T F R U K U'
T - translation matrix
F - either an identity matrix or negative identity matrix
R - rotation defined by Quat q.
U - rotates you into the coordinates system where the scaling or stretching is done
K - scaling matrix
U' - inverse of u.
- See Functions:
- SpectralDecomp(Matrix3 m, Point3 &s, Quat& q);
decomp_affine(Matrix3 A, AffineParts *parts);
invert_affine(AffineParts *parts, AffineParts *inverse);
#include <decomp.h>
Inheritance diagram for AffineParts:
Public Attributes |
|
| Point3 | t |
| The translation components. |
|
| Quat | q |
| The essential rotation. |
|
| Quat | u |
| The stretch rotation. |
|
| Point3 | k |
| The stretch factors. |
|
| float | f |
| Sign of the determinant. |
|
Member Data Documentation
The translation components.
The essential rotation.
The stretch rotation.
This is the axis system of the scaling application.
| float f |
Sign of the determinant.
