Errata: X3D for Web Authors

Front matter

p. viii, Contents, Section 2.6 label: Field data types
p. xix, Preface, Section 1 Goals: insert hyphen in Web-capable
p. xxiii, Preface, Section 6 Chapter descriptions, bullet 4: remove space character in NavigationInfo
p. xxv, Contributor list: add Aaron Bergstrom (North Dakota State University)

Chapter 1 - Technical Overview

p. 3, Section 2.1, last paragraph, change beginning of last sentence to: Scene authors, software developers, industry professionals, and 3D enthusiasts
p. 18, Section 2.6, section label: Field data types
p. 26, Table 1.5, header in last column: change to Xj3D open-source browser since Flux is no longer open source.
p. 24, Section 2.8.1.2, fifth bullet, insert before last period: than the ClassicVRML and VRML97 syntax
p. 24, Section 2.8.1.2, fifth bullet, append: The containerField attribute describes the default field name, used by this node's parent, to reference the node itself.

Chapter 3 - Grouping Nodes

p. 68, Figure 3.1, replace image to show correct axis alignment:
p. 68, Figure 3.1, append sentence: The alignment of the +X axis with East and the +Y axis with South matches the coordinate system of the X3D Geospatial Component .
p. 78, Section 3.2.2, last line, two occurrences: replace 0.707 with 0.78

Chapter 4 - Viewing Navigation

p. 96, Section 2.1, fourth bullet, insert: for special interactive techniques
p. 100, Binding-operations list, second bullet, t₅: remove initial If
p. 102, Table 4.2, sixth row: Viewpoint position default value is 0 0 10
p. 105, section 3.1.5, third line: proper spelling of NavigationInfo
p. 107, Table 4.4, fourth row: append quotation mark after "TELEPORT"
p. 119, Figure 4.5 caption: proper spelling of geometry

Chapter 5 - Appearance Material Textures

p. 121, Section 1, second paragraph: remove space character in TextureTransform
p. 150, Figure 5.13: append <TextureTransform rotation='0.78'/> to caption

Chapter 6 - Geometry Points Lines Polygons

p. 157, chapter quotation credit: remove extraneous period (.) after 1846

Chapter 7 - Event Animation Interpolation

p. 192, Section 2.5, bullet 3, correct caption gy inserting italicized sentences at beginning and end of existing prose:
3. Check accessType and data type. Ensure that the target field has accessType inputOnly or inputOutput. Determine if the target field is a floating-point type: SFFloat, SFVec3f, MFVec3f, SFColor, and so on. The target field will either be a singleton SF type or an array MF type. In the X3D type-naming convention, SF means Single Field, and MF means Multiple Field. If so, use one of the Interpolator nodes.
p. 192, Section 2.5, bullet 5, change caption: Determine which interpolator.
p. 193, Section 2.5, bullet 5, append italicized text to sentence fragment at beginning of page:
value_changed output using Table 7.5.
p. 194, Figure 7.5 diagram: change Step 7 TimeSensor initialization to loop='true'
p. 195, bullet 4, append additional prose:
4. Determine whether Sequencer or Script. These special node types are not applicable to this example, because the data type for set_rotation is SFOrientation which is a floating-point type.
p. 197, Table 7.4, fourth row: change SFL; to SF;
p. 199, Table 7.5, fifth row: change ColorInterpolator to OrientationInterpolator
p. 201, Table 7.6, eighth row for TimeSensor outputOnly fraction_changed event: change SFTime to SFFloat.

Chapter 8 - User Interactivity Nodes

p. 221, Section 1, paragraph 3, insert: The Collision node reports when a viewer collides with shape geometry. Anchor and Collision are covered in Chapter 4, Viewing and Navigation.
p. 238, Section 3.3.4, append to section title: offset and autoOffset
p. 245, Table 8.17, Node Syntax for StringSensor, insert line entry:
SFBool inputOutput enabled true Interactive
p. 247, Section 4.2, Related Nodes and Concepts, append:

Chapter 4, Viewing and Navigation describes several nodes which support user interaction. Anchor uses the pointing device to provide a description, viewpoint link, browser page or another X3D scene. Billboard rotates child geometry to face the user, and Collision reports if the viewer collides with other geometry.

Chapter 12, Environment Sensor and Sound Nodes also includes several user-interaction nodes. LoadSensor reports when a media asset is loaded. ProximitySensor reports when a user is in the vicinity of a given location. VisibilitySensor indicates when the user's current camera view has a clear sight line to sensed geometry.

Chapter 9 - Event Utilities and Scripting

p. 249, Section 1, insert new paragraph 2: This chapter covers the Event Utility nodes: BooleanFilter, BooleanSequencer, BooleanToggle, BooleanTrigger, IntegerSequencer, IntegerTrigger, and TimeTrigger. The Script node is also presented in detail.
p. 260, Section 3.5, first paragraph, change: step-function to impulse-function

Chapter 10 - Geometry 2D

p. 280, Section 2.1, insert new third paragraph:
Because Geometry2D nodes are defined by default in the vertical X-Y plane, this means that no Z values need to be defined. Node definitions are thus somewhat terser than their counterpart 3D nodes.
p. 280, Section 2.2, append paragraph:
Most fields in Geometry2D nodes have accessType='initializeOnly', meaning that they cannot be modified directly after creation. Some animation effects can be accomplished by modifying translation, rotation or scale in a parent Transform node.
p. 280, Table 10.1 bottom section, change
#X3D V3.0 vtf8 to
#X3D V3.0 utf8
p. 284, Section 3.2.2., proper spelling of endAngle
p. 285, Figure 10.5 is erroneous, the notched inner circle needs to be removed. Corrected version:

Chapter 11 - Lighting and Environment

p. 316, Figure 11.7: defined angles for beamWidth and cutOffAngle need to be swapped. Corrected version:
p. 320, Figure 11.9 caption: change "seamless panorama" to "background panorama"
p. 322, second line: remove stray space character from "allows"

Chapter 12 - Environment Sensor Sound

p. 327, chapter quotation credit: remove extraneous period (.) after 1667
p. 342, Figure 12.3 caption: append sentence "Note that leftPanFactor + rightPanFactor always equals 1."
p. 347, Section 3.4.9 Hints and warnings: reverse relation operators to read minFront ≤ maxFront and minBack ≤ maxBack

Chapter 14 - Prototypes

p. 386 Table 14.2, and p. 389 Table 14.4: prototype name is a required attribute, e.g. <ProtoDeclare name="NewNode">

Index

p. 427, second column bottom, add: containerfield attribute, pages 24 and 26
p. 437, second column center, add: solid field, pages 40-41

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http://x3dgraphics.com/errata.php
Revised 5 July 2008.

Portions of this work are from the book,
X3D: 3D Graphics for Web Authors, by Don Brutzman and Leonard Daly, published by Morgan Kaufmann Publishers, Copyright 2007 Elsevier, Inc. All rights reserved.