SoText3.3iv man page

SoText3 — 3D text shape node

Inherits from

SoBase > SoFieldContainer > SoNode > SoShape > SoText3


#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:


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


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.


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.


Creates a 3D text node with default settings.

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

Action Behavior

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

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

Computes the bounding box that encloses the text.

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