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The SoPickStyle class is a node for setting up how to do picking.By default, all geometry in a scene is available for picking. Upon writing applications with interaction possibilities, this is often not what you want. To exclude parts of the scene graph from pick actions, use the SoPickStyle::UNPICKABLE. More...
#include <Inventor/nodes/SoPickStyle.h>
Public Types | |
enum | Style { SHAPE = SoPickStyleElement::SHAPE, BOUNDING_BOX = SoPickStyleElement::BOUNDING_BOX, UNPICKABLE = SoPickStyleElement::UNPICKABLE } |
Public Member Functions | |
SoPickStyle (void) | |
virtual void | doAction (SoAction *action) |
virtual void | callback (SoCallbackAction *action) |
virtual void | pick (SoPickAction *action) |
Static Public Member Functions | |
static void | initClass (void) |
Public Attributes | |
SoSFEnum | style |
Protected Member Functions | |
virtual | ~SoPickStyle () |
The SoPickStyle class is a node for setting up how to do picking.
By default, all geometry in a scene is available for picking. Upon writing applications with interaction possibilities, this is often not what you want. To exclude parts of the scene graph from pick actions, use the SoPickStyle::UNPICKABLE.
You can also optimize pick operations by using the SoPickStyle::BOUNDING_BOX pickstyle.
FILE FORMAT/DEFAULTS:
enum SoPickStyle::Style |
Enumeration of the available picking strategies.
SHAPE |
Do "exact" picks, finding the correct intersection point(s), etc. |
BOUNDING_BOX |
Only compare pick intersection with the bounding boxes of shapes. This is usually much faster than SoPickStyle::SHAPE. |
UNPICKABLE |
The geometry following this node in the scene will not be available for picking. |
SoPickStyle::SoPickStyle | ( | void | ) |
Constructor.
References BOUNDING_BOX, SHAPE, style, and UNPICKABLE.
SoPickStyle::~SoPickStyle | ( | ) | [protected, virtual] |
Destructor.
void SoPickStyle::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 SoNode.
void SoPickStyle::doAction | ( | SoAction * | action | ) | [virtual] |
This function performs the typical operation of a node for any action.
Reimplemented from SoNode.
References SoOverrideElement::getPickStyleOverride(), SoAction::getState(), SoField::isIgnored(), SoNode::isOverride(), SoFieldContainer::set(), SoOverrideElement::setPickStyleOverride(), and style.
Referenced by callback(), and pick().
void SoPickStyle::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 SoNode.
References doAction().
void SoPickStyle::pick | ( | SoPickAction * | action | ) | [virtual] |
Action method for SoPickAction.
Does common processing for SoPickAction action instances.
Reimplemented from SoNode.
References doAction().
Which strategy to use for the picking actions for subsequent shapes in the scene graph. Default value is SoPickStyle::SHAPE.
Referenced by doAction(), and SoPickStyle().
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