SoDecomposeMatrix.3iv man page

SoDecomposeMatrix — decomposes transformation matrices into values for translation, rotation, and scale

Inherits from

SoBase > SoFieldContainer > SoEngine > SoDecomposeMatrix


#include <Inventor/engines/SoCompose.h>

Inputs from class SoDecomposeMatrix:

SoMFMatrix matrix

SoMFVec3f center

Outputs from class SoDecomposeMatrix:

(SoMFVec3f) translation

(SoMFRotation) rotation

(SoMFVec3f) scaleFactor

(SoMFRotation) scaleOrientation

Methods from class SoDecomposeMatrix:


Methods from class SoEngine:

static SoType getClassTypeId()

virtual int getOutputs(SoEngineOutputList &list) const

SoEngineOutput * getOutput(const SbName &outputName) const

SbBool getOutputName(const SoEngineOutput *output, SbName &outputName) const

SoEngine * copy() const

static SoEngine * getByName(const SbName &name)

static int getByName(const SbName &name, SoEngineList &list)

Methods from class SoFieldContainer:

void setToDefaults()

SbBool hasDefaultValues() const

SbBool fieldsAreEqual(const SoFieldContainer *fc) const

void copyFieldValues(const SoFieldContainer *fc, SbBool copyConnections = FALSE)

SbBool set(const char *fieldDataString)

void get(SbString &fieldDataString)

virtual int getFields(SoFieldList &resultList) const

virtual SoField * getField(const SbName &fieldName) const

SbBool getFieldName(const SoField *field, SbName &fieldName) const

SbBool isNotifyEnabled() const

SbBool enableNotify(SbBool flag)

Methods from class SoBase:

void ref()

void unref() const

void unrefNoDelete() const

void touch()

virtual SoType getTypeId() const

SbBool isOfType(SoType type) const

virtual void setName(const SbName &name)

virtual SbName getName() const


This engine takes as input a transformation matrix and a center of transformation. As output the engine produces the translation, rotation and scale values derived from the matrix.

The input fields can have multiple values, allowing the engine to decompose several matrices in parallel. One of the inputs may have more values than the other. In that case, the last value of the shorter input will be repeated as necessary.


SoMFMatrix matrix
The 4x4 transformation matrix.

SoMFVec3f center
The center of transformations.


(SoMFVec3f) translation
Derived translation in x, y, and z.

(SoMFRotation) rotation
Derived rotation.

(SoMFVec3f) scaleFactor
Derived scale values in x, y, and z.

(SoMFRotation) scaleOrientation
Derived rotational space for scaling.



File Format/Defaults

DecomposeMatrix {
matrix	1 0 0 0
	0 1 0 0
	0 0 1 0
	0 0 0 1
center	0 0 0

See Also

SoComposeMatrix, SoEngineOutput