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SoText2 Class Reference

The SoText2 class is a node type for visualizing 2D text aligned with the camera plane. More...

#include <Inventor/nodes/SoText2.h>

Inheritance diagram for SoText2::

List of all members.

Public Types
enum	Justification { LEFT = 1, RIGHT, CENTER }
Public Methods
	SoText2 (void)
virtual void	GLRender (SoGLRenderAction *action)
virtual void	rayPick (SoRayPickAction *action)
virtual void	getPrimitiveCount (SoGetPrimitiveCountAction *action)
Static Public Methods
void	initClass (void)
Public Attributes
SoMFString	string
SoSFFloat	spacing
SoSFEnum	justification
Protected Methods
virtual	~SoText2 ()
virtual void	generatePrimitives (SoAction *action)
virtual void	computeBBox (SoAction *action, SbBox3f &box, SbVec3f &center)

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Detailed Description

The SoText2 class is a node type for visualizing 2D text aligned with the camera plane.

SoText2 text is not scaled according to the distance from the camera, and is not influenced by rotation or scaling as 3D primitives are. If these are properties that you want the text to have, you should instead use an SoText3 or SoAsciiText node.

Note that even though the size of the 2D text is not influenced by the distance from the camera, the text is still subject to the usual rules with regard to the depthbuffer, so it will be obscured by graphics laying in front of it.

The text will be positioned according to the current transformation. The x origin of the text is the first pixel of the leftmost character of the text. The y origin of the text is the baseline of the first line of text (the baseline being the imaginary line on which all upper case characters are standing).

See also:

SoFont, SoFontStyle, SoText3, SoAsciiText

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Member Enumeration Documentation

enum SoText2::Justification

Enum contains the various options for how the horizontal text layout text should be done.

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Constructor & Destructor Documentation

SoText2::SoText2 (  void )

Constructor.

SoText2::~SoText2 (  )  [protected, virtual]

Destructor.

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Member Function Documentation

void SoText2::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 SoText2::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 SoText2::rayPick (  SoRayPickAction * action )  [virtual]

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

void SoText2::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 SoText2::generatePrimitives (  SoAction * action )  [protected, virtual]

For internal use only. Reimplemented from SoShape.

void SoText2::computeBBox (  SoAction * action, SbBox3f & box, SbVec3f & center )  [protected, virtual]

For internal use only. Reimplemented from SoShape.

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Member Data Documentation

SoMFString SoText2::string

The set of strings to render. Each string in the multiple value field will be rendered on it's own line. The default value of the field is a single empty string.

SoSFFloat SoText2::spacing

Spacing between each consecutive vertical line. Default value is 1.0, which means that the space between the uppermost line of each rendered string will equal the vertical size of the highest character in the bitmap alphabet.

SoSFEnum SoText2::justification

Decides how the horizontal layout of the text strings is done.

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

• SoText2.cpp
• SoText2.h

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