Open Inventor Release 2023.2.3
 
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SoTransformProjection Class Reference

VSG extension Scale/recenter projection node More...

#include <Inventor/nodes/SoTransformProjection.h>

+ Inheritance diagram for SoTransformProjection:

Public Member Functions

virtual SoType getTypeId () const
 Returns the type identifier for this specific instance.
 
 SoTransformProjection ()
 Constructor.
 
- Public Member Functions inherited from SoProjection
 SoProjection ()
 Constructor.
 
void addProjection (SbString &projectionName, SbProjection *projection, int id)
 Add a projection with the given name and id to the list.
 
void setProjection (SbProjection *projection)
 Set the current projection.
 
void getCurrentProjectionInfos (SbString &name, int &id)
 Return current projection name and id.
 
SbProjectiongetProjection () const
 Return current projection.
 
- Public Member Functions inherited from SoNode
virtual void setOverride (const SbBool state)
 Turns the override flag on or off.
 
virtual SbBool isOverride () const
 Returns the state of the override flag.
 
virtual SoNodecopy (SbBool copyConnections=FALSE) const
 Creates and returns an exact copy of the node.
 
virtual SbBool affectsState () const
 Returns TRUE if a node has an effect on the state during traversal.
 
virtual void touch ()
 Marks an instance as modified, simulating a change to it.
 
- Public Member Functions inherited from SoFieldContainer
void setToDefaults ()
 Sets all fields in this object to their default values.
 
SbBool hasDefaultValues () const
 Returns TRUE if all of the object's fields have their default values.
 
SbBool fieldsAreEqual (const SoFieldContainer *fc) const
 Returns TRUE if this object's fields are exactly equal to fc's fields.
 
void copyFieldValues (const SoFieldContainer *fc, SbBool copyConnections=FALSE)
 Copies the contents of fc's fields into this object's fields.
 
SoNONUNICODE SbBool set (const char *fieldDataString)
 Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format.
 
SbBool set (const SbString &fieldDataString)
 Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format.
 
void get (SbString &fieldDataString)
 Returns the values of the fields of this object in the Open Inventor ASCII file format in the given string.
 
virtual int getFields (SoFieldList &list) const
 Appends references to all of this object's fields to resultList, and returns the number of fields appended.
 
virtual int getAllFields (SoFieldList &list) const
 Returns a list of fields, including the eventIn's and eventOut's.
 
virtual SoFieldgetField (const SbName &fieldName) const
 Returns a the field of this object whose name is fieldName.
 
virtual SoFieldgetEventIn (const SbName &fieldName) const
 Returns a the eventIn with the given name.
 
virtual SoFieldgetEventOut (const SbName &fieldName) const
 Returns the eventOut with the given name.
 
SbBool getFieldName (const SoField *field, SbName &fieldName) const
 Returns the name of the given field in the fieldName argument.
 
SbBool enableNotify (SbBool flag)
 Notification at this Field Container is enabled (if flag == TRUE) or disabled (if flag == FALSE).
 
SbBool isNotifyEnabled () const
 Notification is the process of telling interested objects that this object has changed.
 
virtual void setUserData (void *data)
 Sets application data.
 
void * getUserData (void) const
 Gets user application data.
 
- Public Member Functions inherited from SoBase
virtual SbName getName () const
 Returns the name of an instance.
 
virtual void setName (const SbName &name)
 Sets the name of an instance.
 
void setSynchronizable (const bool b)
 Sets this to be a ScaleViz synchronizable object.
 
bool isSynchronizable () const
 Gets the ScaleViz synchronizable state of this object.
 
- Public Member Functions inherited from SoRefCounter
void ref () const
 Adds a reference to an instance.
 
void unref () const
 Removes a reference from an instance.
 
void unrefNoDelete () const
 unrefNoDelete() should be called when it is desired to decrement the reference count, but not delete the instance if this brings the reference count to zero.
 
int getRefCount () const
 Returns current reference count.
 
void lock () const
 lock this instance.
 
void unlock () const
 unlock this instance.
 
- Public Member Functions inherited from SoTypedObject
SbBool isOfType (const SoType &type) const
 Returns TRUE if this object is of the type specified in type or is derived from that type.
 
template<typename TypedObjectClass >
SbBool isOfType () const
 Returns TRUE if this object is of the type of class TypedObjectClass or is derived from that class.
 

Static Public Member Functions

static SoType getClassTypeId ()
 Returns the type identifier for this class.
 
- Static Public Member Functions inherited from SoProjection
static SoType getClassTypeId ()
 Returns the type identifier for this class.
 
static SbVec3fcheckProjection (SoState *state, SoNode *node, int32_t numCoords, const SbVec3f *coords)
 Apply projection to given coordinates.
 
- Static Public Member Functions inherited from SoNode
static SoType getClassTypeId ()
 Returns the type identifier for this class.
 
static SoNodegetByName (const SbName &name)
 A node's name can be set using SoBase::setName().
 
static int getByName (const SbName &name, SoNodeList &list)
 A node's name can be set using SoBase::setName().
 
- Static Public Member Functions inherited from SoFieldContainer
static SoType getClassTypeId ()
 Returns the type of this class.
 
- Static Public Member Functions inherited from SoBase
static SoType getClassTypeId ()
 Returns type identifier for this class.
 
- Static Public Member Functions inherited from SoTypedObject
static SoType getClassTypeId ()
 Returns the type identifier for this class.
 

Public Attributes

SoSFFloat scaleFactor
 Scale factor applied to the geometry.
 
SoSFVec3f centerPosition
 Translation applied to the geometry.
 
- Public Attributes inherited from SoProjection
SoSFBool isOn
 If set to FALSE, projection is inactive.
 
SoSFMatrix matrix
 Matrix that can be applied before projecting a point.
 
SoSFInt32 projTypeId
 Current projection id.
 
SoMFFloat floatParameters
 Float parameters stored for projections.
 
SoMFString parameters
 String parameters stored for projections.
 
SoMFString parametersIn
 String parameters stored for projections.
 

Detailed Description

VSG extension Scale/recenter projection node

This property node is a specific SoProjection which applies a scale and recenter to a geometry.

The computation is done on the CPU before the transfer to OpenGL. The main purpose of this feature is to transform the vertex coordinates before sending them to OpenGL in order to avoid single precision issues, especially with the depth buffer.

Essentially this is a convenience node that automatically creates an SbTransformProjection and calls the setProjection() method for you.

The result of a bounding box action is the coordinates of the bounding box after the projection because we need this version of the bounding box for rendering/clipping.

See SoProjection for important limitations of projection nodes.

FILE FORMAT/DEFAULT

    TransformProjection {
    parameters ""
    matrix identity
    isOn TRUE
    floatParameters 1
    projTypeId 0

    scaleFactor 1.0
    centerPosition 0.0 0.0 0.0
    }

SEE ALSO

SbTransformProjection, SoProjection, SoGeoProjection

Definition at line 83 of file SoTransformProjection.h.

Constructor & Destructor Documentation

◆ SoTransformProjection()

SoTransformProjection::SoTransformProjection ( )

Constructor.

Member Function Documentation

◆ getClassTypeId()

static SoType SoTransformProjection::getClassTypeId ( )
static

Returns the type identifier for this class.


◆ getTypeId()

virtual SoType SoTransformProjection::getTypeId ( ) const
virtual

Returns the type identifier for this specific instance.

Reimplemented from SoProjection.

Member Data Documentation

◆ centerPosition

SoSFVec3f SoTransformProjection::centerPosition

Translation applied to the geometry.


Note: This value is subtracted from each coordinate.

Definition at line 105 of file SoTransformProjection.h.

◆ scaleFactor

SoSFFloat SoTransformProjection::scaleFactor

Scale factor applied to the geometry.


Note: Each coordinate is multiplied by this value.

Definition at line 99 of file SoTransformProjection.h.


The documentation for this class was generated from the following file: