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SoCone Class Reference

The SoCone class is for rendering cone shapes. More...

#include <Inventor/nodes/SoCone.h>

Inheritance diagram for SoCone::

List of all members.

Public Types
enum	Part { SIDES = 1, BOTTOM, ALL }
Public Methods
	SoCone (void)
void	addPart (SoCone::Part part)
void	removePart (SoCone::Part part)
SbBool	hasPart (SoCone::Part part) const
virtual void	GLRender (SoGLRenderAction *action)
virtual void	rayPick (SoRayPickAction *action)
virtual void	getPrimitiveCount (SoGetPrimitiveCountAction *action)
Static Public Methods
void	initClass (void)
Public Attributes
SoSFBitMask	parts
SoSFFloat	bottomRadius
SoSFFloat	height
Protected Methods
virtual	~SoCone ()
virtual void	generatePrimitives (SoAction *action)
virtual void	computeBBox (SoAction *action, SbBox3f &box, SbVec3f &center)

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Detailed Description

The SoCone class is for rendering cone shapes.

Insert a cone shape into the scenegraph. The cone is rendered with the current material, texture and drawstyle settings (if any, otherwise the default settings are used).

The SoCone node class is provided as a convenient abstraction for the application programmer to use "complex" shapes of this type without having to do the tesselation to polygons and other low-level programming herself.

A cone is visualized by the underlying rendering system by first tesselating the conceptual cone into a set of polygons. To control the trade-off between an as much as possible correct visual appearance of the cone versus fast rendering, use an SoComplexity node to influence the number of polygons generated from the tesselation process. (The higher the complexity value, the more polygons will be generated, the more rounded the sides of the cone will look.) Set the SoComplexity::value field to what you believe would be a good trade-off between correctness and speed for your particular application.

See also:

SoCylinder, SoSphere, SoCube

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Member Enumeration Documentation

enum SoCone::Part

Enumerates the various parts of the cone, for setting inclusion or exclusion from the shape.

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Constructor & Destructor Documentation

SoCone::SoCone (  void )

Constructor.

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

Destructor.

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Member Function Documentation

void SoCone::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 SoShape.

void SoCone::addPart (  SoCone::Part part )

Add a part to the cone. See also: removePart(), hasPart()

void SoCone::removePart (  SoCone::Part part )

Remove a part from the cone. See also: addPart(), hasPart()

SbBool SoCone::hasPart (  SoCone::Part part )  const

Returns TRUE if rendering of the given part is currently turned on. See also: addPart(), removePart()

void SoCone::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 SoShape.

void SoCone::rayPick (  SoRayPickAction * action )  [virtual]

Calculates picked point based on primitives generated by subclasses. Reimplemented from SoShape.

void SoCone::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 SoShape.

void SoCone::generatePrimitives (  SoAction * action )  [protected, virtual]

For internal use only. Reimplemented from SoShape.

void SoCone::computeBBox (  SoAction * action, SbBox3f & box, SbVec3f & center )  [protected, virtual]

For internal use only. Reimplemented from SoShape.

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Member Data Documentation

SoSFBitMask SoCone::parts

The parts to use for the cone shape. Defaults to SoCone::ALL.

SoSFFloat SoCone::bottomRadius

Radius of the cone's bottom disc. Default value is 1.0.

SoSFFloat SoCone::height

Height of cone. Default value is 2.0.

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

• SoCone.cpp
• SoCone.h

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