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SoArray Class Reference

The SoArray class is a group node for setting up regular arrays of subgraphs. More...

#include <Inventor/nodes/SoArray.h>

Inheritance diagram for SoArray::

List of all members.

Public Types
enum	Origin { FIRST, CENTER, LAST }
Public Methods
	SoArray (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)
Static Public Methods
void	initClass (void)
Public Attributes
SoSFEnum	origin
SoSFShort	numElements1
SoSFShort	numElements2
SoSFShort	numElements3
SoSFVec3f	separation1
SoSFVec3f	separation2
SoSFVec3f	separation3
Protected Methods
virtual	~SoArray ()

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Detailed Description

The SoArray class is a group node for setting up regular arrays of subgraphs.

SoArray presents a convenient way of duplicating a node (typically a shape node) or a complete subgraph in 1 to 3 dimensions.

The child node or subgraph can only be translated by regular offsets for all dimensions.

For more flexible functionality for duplication of geometry, see the SoMultipleCopy group node, which can do general transformations (including rotation and scaling) for it's child.

See also:

SoMultipleCopy

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Member Enumeration Documentation

enum SoArray::Origin

The possible settings for the SoArray::origin field.

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Constructor & Destructor Documentation

SoArray::SoArray (  void )

Constructor.

SoArray::~SoArray (  )  [protected, virtual]

Destructor.

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Member Function Documentation

void SoArray::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 SoArray::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 SoArray::doAction (  SoAction * action )  [virtual]

This function performs the typical operation of a node for any action. Reimplemented from SoGroup.

void SoArray::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 SoArray::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 SoArray::pick (  SoPickAction * action )  [virtual]

Action method for SoPickAction. Does common processing for SoPickAction action instances. Reimplemented from SoGroup.

void SoArray::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 SoArray::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 SoArray::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 SoArray::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 SoArray::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.

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Member Data Documentation

SoSFEnum SoArray::origin

Where the origin of the array should be set, ie how the array elements will be distributed from the local origo. Default value is SoArray::FIRST.

SoSFShort SoArray::numElements1

Number of duplicates for each X axis row. Default 1.

SoSFShort SoArray::numElements2

Number of duplicates for each Y axis row. Default 1.

SoSFShort SoArray::numElements3

Number of duplicates for each Z axis row. Default 1.

SoSFVec3f SoArray::separation1

Distance in current units between the center point of each element along the X axis. Default [1.0, 0.0, 0.0].

SoSFVec3f SoArray::separation2

Distance in current units between the center point of each element along the Y axis. Default [0.0, 1.0, 0.0].

SoSFVec3f SoArray::separation3

Distance in current units between the center point of each element along the Z axis. Default [0.0, 0.0, 1.0].

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

• SoArray.cpp
• SoArray.h

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