NAME
SoMultipleCopy -
The SoMultipleCopy class redraws it’s children multiple times at
different transformations.
The SoMultipleCopy group node duplicates it’s children nodes /
subgraphs without using additional memory resources.
SYNOPSIS
#include <Inventor/nodes/SoMultipleCopy.h>
Inherits SoGroup.
Public Member Functions
SoMultipleCopy (void)
virtual SbBool affectsState (void) const
virtual void doAction (SoAction *action)
virtual void callback (SoCallbackAction *action)
virtual void GLRender (SoGLRenderAction *action)
virtual void pick (SoPickAction *action)
virtual void getBoundingBox (SoGetBoundingBoxAction *action)
virtual void handleEvent (SoHandleEventAction *action)
virtual void getMatrix (SoGetMatrixAction *action)
virtual void search (SoSearchAction *action)
virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)
virtual void audioRender (SoAudioRenderAction *action)
Static Public Member Functions
static void initClass (void)
Public Attributes
SoMFMatrix matrix
Protected Member Functions
virtual ~SoMultipleCopy ()
Detailed Description
The SoMultipleCopy class redraws it’s children multiple times at
different transformations.
The SoMultipleCopy group node duplicates it’s children nodes /
subgraphs without using additional memory resources.
It can do general transformations (translations, rotation and scaling)
for it’s children. Apart from transformations, the appearance of it’s
children will be identical.
FILE FORMAT/DEFAULTS:
MultipleCopy {
matrix 1 0 0 0
0 1 0 0
0 0 1 0
0 0 0 1
}
See also:
SoArray
Constructor & Destructor Documentation
SoMultipleCopy::SoMultipleCopy (void) Constructor.
SoMultipleCopy::~SoMultipleCopy () [protected, virtual] Destructor.
Member Function Documentation
void SoMultipleCopy::initClass (void) [static] Sets up initialization for
data common to all instances of this class, like submitting necessary
information to the Coin type system.
Reimplemented from SoGroup.
SbBool SoMultipleCopy::affectsState (void) const [virtual] Returns TRUE if
the node could have any effect on the state during traversal.
If it returns FALSE, no data in the traversal-state will change from
the pre-traversal state to the post-traversal state. The SoSeparator
node will for instance return FALSE, as it pushes and pops the state
before and after traversal of its children. All SoShape nodes will also
return FALSE, as just pushing out geometry data to the rendering engine
won’t affect the actual rendering state.
The default method returns TRUE, on a ’better safe than sorry’
philosophy.
Reimplemented from SoNode.
void SoMultipleCopy::doAction (SoAction * action) [virtual] This function
performs the typical operation of a node for any action.
Reimplemented from SoGroup.
void SoMultipleCopy::callback (SoCallbackAction * action) [virtual] Action
method for SoCallbackAction.
Simply updates the state according to how the node behaves for the
render action, so the application programmer can use the
SoCallbackAction for extracting information about the scene graph.
Reimplemented from SoGroup.
void SoMultipleCopy::GLRender (SoGLRenderAction * action) [virtual] Action
method for the SoGLRenderAction.
This is called during rendering traversals. Nodes influencing the
rendering state in any way or who wants to throw geometry primitives at
OpenGL overrides this method.
Reimplemented from SoGroup.
void SoMultipleCopy::pick (SoPickAction * action) [virtual] Action method
for SoPickAction.
Does common processing for SoPickAction action instances.
Reimplemented from SoGroup.
void SoMultipleCopy::getBoundingBox (SoGetBoundingBoxAction * action)
[virtual] Action method for the SoGetBoundingBoxAction.
Calculates bounding box and center coordinates for node and modifies
the values of the action to encompass the bounding box for this node
and to shift the center point for the scene more towards the one for
this node.
Nodes influencing how geometry nodes calculates their bounding box also
overrides this method to change the relevant state variables.
Reimplemented from SoGroup.
void SoMultipleCopy::handleEvent (SoHandleEventAction * action) [virtual]
Action method for SoHandleEventAction.
Inspects the event data from action, and processes it if it is
something which this node should react to.
Nodes influencing relevant state variables for how event handling is
done also overrides this method.
Reimplemented from SoGroup.
void SoMultipleCopy::getMatrix (SoGetMatrixAction * action) [virtual]
Action method for SoGetMatrixAction.
Updates action by accumulating with the transformation matrix of this
node (if any).
Reimplemented from SoGroup.
void SoMultipleCopy::search (SoSearchAction * action) [virtual] Action
method for SoSearchAction.
Compares the search criteria from the action to see if this node is a
match. Searching is done by matching up all criteria set up in the
SoSearchAction -- if any of the requested criteria is a miss, the
search is not deemed successful for the node.
See also:
SoSearchAction
Reimplemented from SoGroup.
void SoMultipleCopy::getPrimitiveCount (SoGetPrimitiveCountAction * action)
[virtual] Action method for the SoGetPrimitiveCountAction.
Calculates the number of triangle, line segment and point primitives
for the node and adds these to the counters of the action.
Nodes influencing how geometry nodes calculates their primitive count
also overrides this method to change the relevant state variables.
Reimplemented from SoGroup.
void SoMultipleCopy::audioRender (SoAudioRenderAction * action) [virtual]
Action method for SoAudioRenderAction.
Does common processing for SoAudioRenderAction action instances.
Reimplemented from SoGroup.
Member Data Documentation
SoMFMatrix SoMultipleCopy::matrix A set of geometry transformation
matrices.
The number of duplicated redraws of the child geometry will be the same
as the number of matrices specified in this field. Ie, each duplication
will be transformed according to a transformation matrix.
The default value of the field is to contain just a single identity
matrix.
Author
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