SoText3(3IV)

NAME
SoText3 — 3D text shape node

INHERITS FROM
SoBase > SoFieldContainer > SoNode > SoShape > SoText3

SYNOPSIS
#include <Inventor/nodes/SoText3.h>

enum Justification {
SoText3::LEFT
Left edges of all strings are aligned
SoText3::RIGHT
Right edges of all strings are aligned
SoText3::CENTER
Centers of all strings are aligned
}

enum Part {
SoText3::FRONT
Front faces of characters
SoText3::SIDES
Extruded sides of characters
SoText3::BACK
Back faces of characters
SoText3::ALL
All parts
}

Fields from class SoText3:

SoMFString
string
SoSFFloat
spacing
SoSFBitMask
parts
SoSFEnum
justification

Methods from class SoText3:

SoText3()
static SoType
getClassTypeId()

Methods from class SoNode:

void
setOverride(SbBool state)
SbBool
isOverride() const
SoNode *
copy(SbBool copyConnections = FALSE) const
virtual SbBool
affectsState() const
static SoNode *
getByName(const SbName &name)
static int
getByName(const SbName &name, SoNodeList &list)

Methods from class SoFieldContainer:

void
setToDefaults()
SbBool
hasDefaultValues() const
SbBool
fieldsAreEqual(const SoFieldContainer *fc) const
void
copyFieldValues(const SoFieldContainer *fc, SbBool copyConnections = FALSE)
SbBool
set(const char *fieldDataString)
void
get(SbString &fieldDataString)
virtual int
getFields(SoFieldList &resultList) const
virtual SoField *
getField(const SbName &fieldName) const
SbBool
getFieldName(const SoField *field, SbName &fieldName) const
SbBool
isNotifyEnabled() const
SbBool
enableNotify(SbBool flag)

Methods from class SoBase:

void
ref()
void
unref() const
void
unrefNoDelete() const
void
touch()
virtual SoType
getTypeId() const
SbBool
isOfType(SoType type) const
virtual void
setName(const SbName &name)
virtual SbName
getName() const

DESCRIPTION
This node defines one or more strings of 3D text. In contrast with SoText2, 3D text can be rotated, scaled, lighted, and textured, just like all other 3D shapes. Each character in a 3D text string is created by extruding an outlined version of the character (in the current typeface) along the current profile, as defined by nodes derived from SoProfile. The default text profile, if none is specified, is a straight line segment one unit long.

The text origin is at (0,0,0) after applying the current transformation. The scale of the text is affected by the size field of the current SoFont as well as the current transformation.

SoText3 uses the current set of materials when rendering. If the material binding is OVERALL, then the whole text is drawn with the first material. If it is PER_PART or PER_PART_INDEXED, the front part of the text is drawn with the first material, the sides with the second, and the back with the third.

Textures are applied to 3D text as follows. On the front and back faces of the text, the texture origin is at the base point of the first string; the base point is at the lower left for justification LEFT, at the lower right for RIGHT, and at the lower center for CENTER. The texture is scaled equally in both S and T dimensions, with the font height representing 1 unit. S increases to the right on the front faces and to the left on the back faces. On the sides, the texture is scaled the same as on the front and back. S is equal to 0 at the rear edge of the side faces. The T origin can occur anywhere along each character, depending on how that character's outline is defined.

FIELDS
SoMFString
string
The text string(s) to display. Each string will appear on its own line. The string(s) can be ascii or UTF-8.

SoSFFloat
spacing
Defines the distance (in the negative y direction) between the base points of successive strings, measured with respect to the current font height. A value of 1 indicates single spacing, a value of 2 indicates double spacing, and so on.

SoSFBitMask
parts
Which parts of text are visible. Note that, for speed, the default for this field is FRONT only.

SoSFEnum
justification
Indicates placement and alignment of strings. With LEFT justification, the left edge of the first line is at the (transformed) origin, and all left edges are aligned. RIGHT justification is similar. CENTER justification places the center of the first string at the (transformed) origin, with the centers of all remaining strings aligned under it.

METHODS

SoText3()
Creates a 3D text node with default settings.

static SoType
getClassTypeId()
Returns type identifier for this class.

ACTION BEHAVIOR
SoGLRenderAction
Draws text based on the current font, profiles, transformation, drawing style, material, texture, complexity, and so on.

SoRayPickAction
Performs a pick on the text. The string index and character position are available from the SoTextDetail.

SoGetBoundingBoxAction
Computes the bounding box that encloses the text.

SoCallbackAction
If any triangle callbacks are registered with the action, they will be invoked for each successive triangle used to approximate the text geometry.

FILE FORMAT/DEFAULTS
Text3 {
string	""
spacing	1
justification	LEFT
parts	FRONT
}

SEE ALSO
SoFont, SoProfile, SoText2, SoTextDetail