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NAME SoTransform SoXf "" { general 3D geometric transformation node }
INCLUDE nodes/SoTransform.h
DESC {
This node defines a geometric 3D transformation consisting of (in
order) a (possibly) non-uniform scale about an arbitrary point, a
rotation about an arbitrary point and axis, and a translation. (While
the transformations can be thought of as being applied in that order,
matrices are actually premultiplied in the opposite order. Therefore,
the operations are listed in the reverse order throughout this reference
page.)
}
FIELD translation { Translation vector. }
FIELD rotation { Rotation specification. }
FIELD scaleFactor { Scale factors. }
FIELD scaleOrientation { Rotational orientation for scale. }
FIELD center { Origin for scale and rotation. }
METHOD "" SoTransform() {
Creates a transformation node with default settings.
}
METHOD "ptAt" void pointAt(const SbVec3f &fromPoint, const SbVec3f &toPoint) {
Sets the node to translate the origin to the \vfromPoint\. and rotate
the negative z-axis (0,0,-1) to lie on the vector from \vfromPoint\.
to \vtoPoint\.. This always tries to keep the "up" direction the
positive y-axis, unless that is impossible. All current field values
in the node are replaced.
}
METHOD getScaleSpaceMx void getScaleSpaceMatrix(SbMatrix &mat,
SbMatrix &inv) const {}
METHOD getRotSpaceMx void getRotationSpaceMatrix(SbMatrix &mat,
SbMatrix &inv) const {}
METHOD getXlateSpaceMx void getTranslationSpaceMatrix(SbMatrix &mat,
SbMatrix &inv) const {
These return composite matrices that transform from object space to each
of the spaces after the scale, rotation, or translation.
}
METHOD "" void multLeft(const SbMatrix &mat) {}
METHOD "" void multRight(const SbMatrix &mat) {
These are convenience functions that combine the effects of a matrix
transformation into the current transformation stored in this node.
The first method premultiplies the transformation and the second
postmultiplies it.
}
METHOD "" void combineLeft(SoTransformation *nodeOnRight) {}
METHOD "" void combineRight(SoTransformation *nodeOnLeft) {
These are convenience functions that combine the effects of another
transformation node into the current transformation stored in this
node. The first method premultiplies the transformation and the
second postmultiplies it.
}
METHOD setMx void setMatrix(const SbMatrix &mat) {
Sets the fields in the node to implement the transformation
represented by the given matrix. Note that invalid matrices (such as
singular ones) have undefined results.
}
METHOD "" void recenter(const SbVec3f &newCenter) {
Changes the center of the transformation to the given point without
affecting the overall effect of the transformation.
}
METHOD "" static SoType getClassTypeId() {
Returns type identifier for this class.
}
ACTION SoGLRenderAction, SoCallbackAction,
SoGetBoundingBoxAction, SoRayPickAction {
Accumulates transformation into the current transformation.
}
ACTION SoGetMatrixAction {
Returns the matrix corresponding to the total transformation.
}
ALSO {
SoMatrixTransform,
SoResetTransform,
SoRotation,
SoRotationXYZ,
SoScale,
SoTransformManip,
SoTransformSeparator,
SoTranslation
}
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