javax.media.j3d

Class Text3D

java.lang.Object

javax.media.j3d.SceneGraphObject

javax.media.j3d.NodeComponent

javax.media.j3d.Geometry

javax.media.j3d.Text3D

public class Text3D
extends Geometry

A Text3D object is a text string that has been converted to 3D geometry. The Font3D object determines the appearance of the Text3D NodeComponent object. Each Text3D object has the following parameters:

• Font3D object - describes the font style of the text string, such as the font family (Helvetica, Courier, etc.), style (Italic, bold, etc.), and point size. The size of the resulting characters will be equal to the point size. For example, a 12 point font will result in a Font3D with characters 12 meters tall.
• Text string - the text string to be written.
• Position - determines the initial placement of the Text3D string in three-space.
• Alignment - specifies how glyphs in the string are placed in relation to the position parameter. Valid values are:
  • ALIGN_CENTER - the center of the string is placed on the position point.
  • ALIGN_FIRST - the first character of the string is placed on the position point.
  • ALIGN_LAST - the last character of the string is placed on the position point.

• Path - specifies how succeeding glyphs in the string are placed in relation to the previous glyph. Valid values are:
• PATH_LEFT - succeeding glyphs are placed to the left of the current glyph.
• PATH_RIGHT - succeeding glyphs are placed to the right of the current glyph.
• PATH_UP - succeeding glyphs are placed above the current glyph.
• PATH_DOWN - succeeding glyphs are placed below the current glyph.
• Character spacing - the space between characters. This spacing is in addition to the regular spacing between glyphs as defined in the Font object.

See Also:

Font3D

Field Summary

Fields

Modifier and Type	Field and Description
static int	ALIGN_CENTER alignment: the center of the string is placed on the position point.
static int	ALIGN_FIRST alignment: the first character of the string is placed on the position point.
static int	ALIGN_LAST alignment: the last character of the string is placed on the position point.
static int	ALLOW_ALIGNMENT_READ Specifies that this Text3D object allows reading the text alignment value.
static int	ALLOW_ALIGNMENT_WRITE Specifies that this Text3D object allows writing the text alignment value.
static int	ALLOW_BOUNDING_BOX_READ Specifies that this Text3D object allows reading the text string bounding box value
static int	ALLOW_CHARACTER_SPACING_READ Specifies that this Text3D object allows reading the text character spacing value.
static int	ALLOW_CHARACTER_SPACING_WRITE Specifies that this Text3D object allows writing the text character spacing value.
static int	ALLOW_FONT3D_READ Specifies that this Text3D object allows reading the Font3D component information.
static int	ALLOW_FONT3D_WRITE Specifies that this Text3D object allows writing the Font3D component information.
static int	ALLOW_PATH_READ Specifies that this Text3D object allows reading the text path value.
static int	ALLOW_PATH_WRITE Specifies that this Text3D object allows writing the text path value.
static int	ALLOW_POSITION_READ Specifies that this Text3D object allows reading the text position value.
static int	ALLOW_POSITION_WRITE Specifies that this Text3D object allows writing the text position value.
static int	ALLOW_STRING_READ Specifies that this Text3D object allows reading the String object.
static int	ALLOW_STRING_WRITE Specifies that this Text3D object allows writing the String object.
static int	PATH_DOWN path: succeeding glyphs are placed below the current glyph.
static int	PATH_LEFT path: succeeding glyphs are placed to the left of the current glyph.
static int	PATH_RIGHT path: succeeding glyphs are placed to the left of the current glyph.
static int	PATH_UP path: succeeding glyphs are placed above the current glyph.

Fields inherited from class javax.media.j3d.Geometry

ALLOW_INTERSECT

Constructor Summary

Constructors

Constructor and Description
Text3D() Constructs a Text3D object with default parameters.
Text3D(Font3D font3D) Creates a Text3D object with the given Font3D object.
Text3D(Font3D font3D, String string) Creates a Text3D object given a Font3D object and a string.
Text3D(Font3D font3D, String string, javax.vecmath.Point3f position) Creates a Text3D object given a Font3D, a string and position.
Text3D(Font3D font3D, String string, javax.vecmath.Point3f position, int alignment, int path) Creates a Text3D object given a Font3D, string, position, alignment and path along which string is to be placed.

Method Summary

Methods

Modifier and Type	Method and Description
NodeComponent	cloneNodeComponent() Deprecated. replaced with cloneNodeComponent(boolean forceDuplicate)
int	getAlignment() Retrieves the text alignment policy for this Text3D NodeComponent object.
void	getBoundingBox(BoundingBox bounds) Retrieves the 3D bounding box that encloses this Text3D object.
float	getCharacterSpacing() Retrieves the character spacing used to construct the Text3D string.
Font3D	getFont3D() Returns the Font3D objects used by this Text3D NodeComponent object.
int	getPath() Retrieves the node's path field.
void	getPosition(javax.vecmath.Point3f position) Copies the node's position field into the supplied parameter.
String	getString() Copies the character string used in the construction of the Text3D node into the supplied parameter.
void	setAlignment(int alignment) Sets the text alignment policy for this Text3D NodeComponent object.
void	setCharacterSpacing(float characterSpacing) Sets the character spacing used when constructing the Text3D string.
void	setFont3D(Font3D font3d) Sets the Font3D object used by this Text3D NodeComponent object.
void	setPath(int path) Sets the node's path field.
void	setPosition(javax.vecmath.Point3f position) Sets the node's position field to the supplied parameter.
void	setString(String string) Copies the character string from the supplied parameter into the Text3D node.

Methods inherited from class javax.media.j3d.NodeComponent

cloneNodeComponent, duplicateNodeComponent, duplicateNodeComponent, getDuplicateOnCloneTree, setDuplicateOnCloneTree

Methods inherited from class javax.media.j3d.SceneGraphObject

clearCapability, clearCapabilityIsFrequent, duplicateSceneGraphObject, getCapability, getCapabilityIsFrequent, getName, getUserData, isCompiled, isLive, setCapability, setCapabilityIsFrequent, setName, setUserData, toString, updateNodeReferences

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ALLOW_FONT3D_READ

public static final int ALLOW_FONT3D_READ

Specifies that this Text3D object allows reading the Font3D component information.

See Also:

Font3D, Constant Field Values

ALLOW_FONT3D_WRITE

public static final int ALLOW_FONT3D_WRITE

Specifies that this Text3D object allows writing the Font3D component information.

See Also:

Font3D, Constant Field Values

ALLOW_STRING_READ

public static final int ALLOW_STRING_READ

Specifies that this Text3D object allows reading the String object.

See Also:

Constant Field Values

ALLOW_STRING_WRITE

public static final int ALLOW_STRING_WRITE

Specifies that this Text3D object allows writing the String object.

See Also:

Constant Field Values

ALLOW_POSITION_READ

public static final int ALLOW_POSITION_READ

Specifies that this Text3D object allows reading the text position value.

See Also:

Constant Field Values

ALLOW_POSITION_WRITE

public static final int ALLOW_POSITION_WRITE

Specifies that this Text3D object allows writing the text position value.

See Also:

Constant Field Values

ALLOW_ALIGNMENT_READ

public static final int ALLOW_ALIGNMENT_READ

Specifies that this Text3D object allows reading the text alignment value.

See Also:

Constant Field Values

ALLOW_ALIGNMENT_WRITE

public static final int ALLOW_ALIGNMENT_WRITE

Specifies that this Text3D object allows writing the text alignment value.

See Also:

Constant Field Values

ALLOW_PATH_READ

public static final int ALLOW_PATH_READ

Specifies that this Text3D object allows reading the text path value.

See Also:

Constant Field Values

ALLOW_PATH_WRITE

public static final int ALLOW_PATH_WRITE

Specifies that this Text3D object allows writing the text path value.

See Also:

Constant Field Values

ALLOW_CHARACTER_SPACING_READ

public static final int ALLOW_CHARACTER_SPACING_READ

Specifies that this Text3D object allows reading the text character spacing value.

See Also:

Constant Field Values

ALLOW_CHARACTER_SPACING_WRITE

public static final int ALLOW_CHARACTER_SPACING_WRITE

Specifies that this Text3D object allows writing the text character spacing value.

See Also:

Constant Field Values

ALLOW_BOUNDING_BOX_READ

public static final int ALLOW_BOUNDING_BOX_READ

Specifies that this Text3D object allows reading the text string bounding box value

See Also:

Constant Field Values

ALIGN_CENTER

public static final int ALIGN_CENTER

alignment: the center of the string is placed on the position point.

See Also:

getAlignment(), Constant Field Values

ALIGN_FIRST

public static final int ALIGN_FIRST

alignment: the first character of the string is placed on the position point.

See Also:

getAlignment(), Constant Field Values

ALIGN_LAST

public static final int ALIGN_LAST

alignment: the last character of the string is placed on the position point.

See Also:

getAlignment(), Constant Field Values

PATH_LEFT

public static final int PATH_LEFT

path: succeeding glyphs are placed to the left of the current glyph.

See Also:

getPath(), Constant Field Values

PATH_RIGHT

public static final int PATH_RIGHT

path: succeeding glyphs are placed to the left of the current glyph.

See Also:

getPath(), Constant Field Values

PATH_UP

public static final int PATH_UP

path: succeeding glyphs are placed above the current glyph.

See Also:

getPath(), Constant Field Values

PATH_DOWN

public static final int PATH_DOWN

path: succeeding glyphs are placed below the current glyph.

See Also:

getPath(), Constant Field Values

Constructor Detail

Text3D

public Text3D()

Constructs a Text3D object with default parameters. The default values are as follows:

font 3D : null
string : null
position : (0,0,0)
alignment : ALIGN_FIRST
path : PATH_RIGHT
character spacing : 0.0

Text3D

public Text3D(Font3D font3D)

Creates a Text3D object with the given Font3D object.

See Also:

Font3D

Text3D

public Text3D(Font3D font3D,
      String string)

Creates a Text3D object given a Font3D object and a string. The string is converted into 3D glyphs. The first glyph from the string is placed at (0.0, 0.0, 0.0) and succeeding glyphs are placed to the right of the initial glyph.

See Also:

Font3D

Text3D

public Text3D(Font3D font3D,
      String string,
      javax.vecmath.Point3f position)

Creates a Text3D object given a Font3D, a string and position. The string is converted into 3D glyphs. The first glyph from the string is placed at position position and succeeding glyphs are placed to the right of the initial glyph.

See Also:

Font3D

Text3D

public Text3D(Font3D font3D,
      String string,
      javax.vecmath.Point3f position,
      int alignment,
      int path)

Creates a Text3D object given a Font3D, string, position, alignment and path along which string is to be placed. The string is converted into 3D glyphs. The placement of the glyphs with respect to the position position depends on the alignment parameter and the path parameter.

See Also:

Font3D

Method Detail

getFont3D

public Font3D getFont3D()

Returns the Font3D objects used by this Text3D NodeComponent object.

Returns:

the Font3D object of this Text3D node - null if no Font3D has been associated with this node.

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

setFont3D

public void setFont3D(Font3D font3d)

Sets the Font3D object used by this Text3D NodeComponent object.

Parameters:

font3d - the Font3D object to associate with this Text3D node.

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

getString

public String getString()

Copies the character string used in the construction of the Text3D node into the supplied parameter.

Returns:

a copy of the String object in this Text3D node.

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

setString

public void setString(String string)

Copies the character string from the supplied parameter into the Text3D node.

Parameters:

string - the String object to recieve the Text3D node's string.

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

getPosition

public void getPosition(javax.vecmath.Point3f position)

Copies the node's position field into the supplied parameter. The position is used to determine the initial placement of the Text3D string. The position, combined with the path and alignment control how the text is displayed.

Parameters:

position - the point to position the text.

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

See Also:

getAlignment(), getPath()

setPosition

public void setPosition(javax.vecmath.Point3f position)

Sets the node's position field to the supplied parameter. The position is used to determine the initial placement of the Text3D string. The position, combined with the path and alignment control how the text is displayed.

Parameters:

position - the point to position the text.

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

See Also:

getAlignment(), getPath()

getAlignment

public int getAlignment()

Retrieves the text alignment policy for this Text3D NodeComponent object. The alignment is used to specify how glyphs in the string are placed in relation to the position field. Valid values for this field are:

• ALIGN_CENTER - the center of the string is placed on the position point.
• ALIGN_FIRST - the first character of the string is placed on the position point.
• ALIGN_LAST - the last character of the string is placed on the position point.

The default value of this field is ALIGN_FIRST.

Returns:

the current alingment policy for this node.

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

See Also:

getPosition(javax.vecmath.Point3f)

setAlignment

public void setAlignment(int alignment)

Sets the text alignment policy for this Text3D NodeComponent object. The alignment is used to specify how glyphs in the string are placed in relation to the position field. Valid values for this field are:

• ALIGN_CENTER - the center of the string is placed on the position point.
• ALIGN_FIRST - the first character of the string is placed on the position point.
• ALIGN_LAST - the last character of the string is placed on the position point.

The default value of this field is ALIGN_FIRST.

Parameters:

alignment - specifies how glyphs in the string are placed in relation to the position field

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

See Also:

getPosition(javax.vecmath.Point3f)

getPath

public int getPath()

Retrieves the node's path field. This field is used to specify how succeeding glyphs in the string are placed in relation to the previous glyph. Valid values for this field are:

• PATH_LEFT: - succeeding glyphs are placed to the left of the current glyph.
• PATH_RIGHT: - succeeding glyphs are placed to the right of the current glyph.
• PATH_UP: - succeeding glyphs are placed above the current glyph.
• PATH_DOWN: - succeeding glyphs are placed below the current glyph.

The default value of this field is PATH_RIGHT.

Returns:

the current alingment policy for this node.

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

setPath

public void setPath(int path)

Sets the node's path field. This field is used to specify how succeeding glyphs in the string are placed in relation to the previous glyph. Valid values for this field are:

• PATH_LEFT - succeeding glyphs are placed to the left of the current glyph.
• PATH_RIGHT - succeeding glyphs are placed to the right of the current glyph.
• PATH_UP - succeeding glyphs are placed above the current glyph.
• PATH_DOWN - succeeding glyphs are placed below the current glyph.

The default value of this field is PATH_RIGHT.

Parameters:

path - the value to set the path to

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

getBoundingBox

public void getBoundingBox(BoundingBox bounds)

Retrieves the 3D bounding box that encloses this Text3D object.

Parameters:

bounds - the object to copy the bounding information to.

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

See Also:

BoundingBox

getCharacterSpacing

public float getCharacterSpacing()

Retrieves the character spacing used to construct the Text3D string. This spacing is in addition to the regular spacing between glyphs as defined in the Font object. 1.0 in this space is measured as the width of the largest glyph in the 2D Font. The default value is 0.0.

Returns:

the current character spacing value

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

setCharacterSpacing

public void setCharacterSpacing(float characterSpacing)

Sets the character spacing used when constructing the Text3D string. This spacing is in addition to the regular spacing between glyphs as defined in the Font object. 1.0 in this space is measured as the width of the largest glyph in the 2D Font. The default value is 0.0.

Parameters:

characterSpacing - the new character spacing value

Throws:

CapabilityNotSetException - if appropriate capability is not set and this object is part of live or compiled scene graph

cloneNodeComponent

public NodeComponent cloneNodeComponent()

Deprecated. replaced with cloneNodeComponent(boolean forceDuplicate)

Overrides:

cloneNodeComponent in class NodeComponent