Class SoAnnoText3

  • All Implemented Interfaces:

    public class SoAnnoText3
    extends SoShape
    Annotation text node. SoAnnoText3 has some features of SoText3 and also some of SoText2.

    For example, in the RENDER2D_PRINT_RASTER mode the text is rendered using SoText2, but the font size (see SoFont) is interpreted in the current 3D units like SoText3. As a result, the text is always screen aligned, but the size changes depending on distance from the camera. Text in this mode cannot be rotated.

    The current annotation property (SoAnnoText3Property) determines the mode. The default is RENDER3D_PRINT_VECTOR (render like SoText3).

    If scaling is applied (e.g. SoTransform) and the mode is RENDER2D_PRINT_RASTER, then the scale factor actually applied to the text is the minimum scale factor of the three axes (x, y, z).


    • If a stroke font is used (see SoFont), the text is rendered with lines rather than faces. Line attributes apply instead of polygon attributes. Text is not extruded.
    • When using one of the xxx_PRINT_RASTER options (see SoAnnoText3Property), the export limitations of SoText2 apply. See that class for more information.

    Shape Antialiasing type is SoShape.TEXT.

    File format/default:

    AnnoText3 {

      string ""
      spacing 1.0
      justification LEFT
      alternateRep NULL

    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.

    For non-stroke fonts,if any triangle callbacks are registered with the action, they will be invoked for each successive triangle used to approximate the text geometry.

    For stroke fonts, if any line segment callbacks are registered with the action, they will be invoked for each successive line segment used to approximate the text geometry.

    See Also:
    SoAnnoText3Property, SoText2, SoText3, SoFullSceneAntialiasing
    • Field Detail

      • string

        public final SoMFString string
        The text string(s) to display. Each string will appear on its own line.
      • spacing

        public final 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. Default is 1.
      • justification

        public final SoSFEnum<SoAnnoText3.Justifications> 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.
        . Default is Left.
      • alternateRep

        public final SoSFNode alternateRep
        This field optionally holds an SoText3 node that will be written out in place of this SoAnnoText3 node when saved to a .iv file.
    • Constructor Detail

      • SoAnnoText3

        public SoAnnoText3()