<!--
#
# X3D InputOutputFields DTD:
#
#	https://www.web3d.org/specifications/x3d-4.1-InputOutputFields.dtd
#
#	version:          4.1
#	created:          13 December 2025
#	revised:          see version control history
#
#	Author:           Don Brutzman
#
# Purpose: the primary Extensible 3D (X3D) Document Type Definition (DTD)
# is augmented by field definitions in x3d-4.1-InputOutputFields.dtd
#
# X3D Specification DTDs:
#	https://www.web3d.org/specifications/x3d-4.1.dtd
#	https://www.web3d.org/specifications/x3d-4.1-InputOutputFields.dtd
#	https://www.web3d.org/specifications/x3d-4.1-Web3dExtensions.dtd
#
# changelog:
#	https://www.web3d.org/specifications/x3d-dtd-changelog.txt
#
# Note on data typing:
#	CDATA used for %SFBool; definitions to allow #FIXED "" initialization,
#	since DTD rules otherwise require enumeration values to be
#	initialized to true|false.
#
-->

<!ATTLIST AudioClip
	elapsedTime   %SFTime;    #FIXED ""
	duration_changed %SFTime; #FIXED ""
	isPaused      CDATA       #FIXED ""
	isActive      CDATA       #FIXED "">

<!ATTLIST Background
	set_bind    CDATA      #FIXED ""
	bindTime    %SFTime;   #FIXED ""
	isBound     CDATA      #FIXED "">

<!ATTLIST BooleanFilter
	set_boolean CDATA #FIXED ""
	inputTrue   CDATA #FIXED ""
	inputFalse  CDATA #FIXED ""
	inputNegate CDATA #FIXED "">

<!-- value_changed is CDATA instead of %SFBool% in order to set empty value on an enumeration -->

<!ATTLIST BooleanSequencer
	set_fraction %SFFloat; #FIXED ""
	value_changed    CDATA  #FIXED ""
	previous CDATA   #FIXED ""
	next     CDATA   #FIXED "">

<!ATTLIST BooleanToggle
	set_boolean CDATA #FIXED "">

<!ATTLIST BooleanTrigger
	set_triggerTime %SFTime; #FIXED ""
	triggerTrue     CDATA    #FIXED "">

<!ATTLIST Collision
	collideTime %SFTime;   #FIXED ""
	isActive    CDATA      #FIXED "">

<!ATTLIST ColorInterpolator
	set_fraction    %SFFloat; #FIXED ""
	value_changed       %SFColor; #FIXED "">

<!ATTLIST CoordinateInterpolator
	set_fraction %SFFloat; #FIXED ""
	value_changed    %MFVec3f; #FIXED "">

<!ATTLIST CoordinateInterpolator2D
	set_fraction %SFFloat; #FIXED ""
	value_changed    %MFVec2f; #FIXED "">

<!ATTLIST CylinderSensor
	isActive   CDATA     	#FIXED ""
	isOver     CDATA     	#FIXED ""
	rotation_changed   %SFRotation; #FIXED ""
	trackPoint_changed %SFVec3f;    #FIXED "">

<!ATTLIST ElevationGrid
	set_height      %MFFloat; #FIXED "">

<!ATTLIST Extrusion
	set_crossSection %MFVec2f;    #FIXED ""
	set_orientation  %MFRotation; #FIXED ""
	set_scale        %MFVec2f;    #FIXED ""
	set_spine        %MFVec3f;    #FIXED "">

<!ATTLIST Fog
	set_bind        CDATA      #FIXED ""
	bindTime        %SFTime;   #FIXED ""
	isBound         CDATA      #FIXED "">

<!ATTLIST IndexedFaceSet
	set_colorIndex      %MFInt32; #FIXED ""
	set_coordIndex      %MFInt32; #FIXED ""
	set_normalIndex     %MFInt32; #FIXED ""
	set_texCoordIndex   %MFInt32; #FIXED "">

<!ATTLIST IndexedLineSet
	set_colorIndex  %MFInt32; #FIXED ""
	set_coordIndex  %MFInt32; #FIXED "">

<!ATTLIST IndexedTriangleFanSet
	set_index  %MFInt32; #FIXED "">

<!ATTLIST IndexedTriangleSet
	set_index  %MFInt32; #FIXED "">

<!ATTLIST IndexedTriangleStripSet
	set_index  %MFInt32; #FIXED "">

<!ATTLIST IntegerSequencer
	set_fraction %SFFloat; #FIXED ""
	value_changed    %SFInt32; #FIXED ""
	previous CDATA   #FIXED ""
	next     CDATA   #FIXED "">

<!ATTLIST IntegerTrigger
	set_boolean  CDATA #FIXED ""
	triggerValue %SFInt32;   #FIXED "">

<!ATTLIST KeySensor
	isActive		CDATA      	#FIXED ""
	keyPress		%SFString;	#FIXED ""
	keyRelease		%SFString;	#FIXED ""
	actionKeyPress		%SFInt32;	#FIXED ""
	actionKeyRelease	%SFInt32;	#FIXED ""
	altKey			CDATA  		#FIXED ""
	controlKey		CDATA  		#FIXED ""
	shiftKey		CDATA  		#FIXED "">

<!ATTLIST LoadSensor
	isActive		CDATA       	#FIXED ""
	isLoaded		CDATA  		#FIXED ""
	loadTime		%SFTime;	#FIXED ""
	progress		%SFFloat;	#FIXED "">

<!ATTLIST LOD
	level_changed		%SFInt32;	#FIXED "">

<!ATTLIST MovieTexture
	elapsedTime       %SFTime;  #FIXED ""
	duration_changed  %SFTime;  #FIXED ""
	isPaused          CDATA     #FIXED ""
	isActive          CDATA     #FIXED "">

<!ATTLIST NavigationInfo
	set_bind        CDATA      #FIXED ""
	bindTime        %SFTime;   #FIXED ""
	transitionComplete         CDATA      #FIXED ""
	isBound         CDATA      #FIXED "">

<!ATTLIST NormalInterpolator
	set_fraction %SFFloat; #FIXED ""
	value_changed    %MFVec3f; #FIXED "">

<!ATTLIST OrientationInterpolator
	set_fraction %SFFloat;    #FIXED ""
	value_changed    %SFRotation; #FIXED "">

<!ATTLIST PlaneSensor
	isActive    CDATA  	#FIXED ""
	isOver      CDATA     	#FIXED ""
	trackPoint_changed  %SFVec3f; #FIXED ""
	translation_changed %SFVec3f; #FIXED "">

<!ATTLIST PositionInterpolator
	set_fraction %SFFloat; #FIXED ""
	value_changed    %SFVec3f; #FIXED "">

<!ATTLIST PositionInterpolator2D
	set_fraction %SFFloat; #FIXED ""
	value_changed    %SFVec2f; #FIXED "">

<!ATTLIST ProximitySensor
	isActive    CDATA     	 #FIXED ""
	position_changed    %SFVec3f;    #FIXED ""
	orientation_changed %SFRotation; #FIXED ""
	centerOfRotation_changed  %SFVec3f;	#FIXED ""
	enterTime   %SFTime;     #FIXED ""
	exitTime    %SFTime;     #FIXED "">

<!ATTLIST ScalarInterpolator
	set_fraction %SFFloat; #FIXED ""
	value_changed    %SFFloat; #FIXED "">

<!ATTLIST SphereSensor
	isActive   CDATA     	#FIXED ""
	isOver      CDATA     	#FIXED ""
	rotation_changed   %SFRotation; #FIXED ""
	trackPoint_changed %SFVec3f;    #FIXED "">

<!ATTLIST StringSensor
	isActive		CDATA     	#FIXED ""
	enteredText		%SFString;	#FIXED ""
	finalText		%SFString;	#FIXED "">

<!ATTLIST Text
	lineBounds     %MFVec2f;   #FIXED ""
	textBounds     %SFVec2f;   #FIXED "">

<!ATTLIST TextureBackground
	set_bind     CDATA      #FIXED ""
	bindTime     %SFTime;   #FIXED ""
	isBound      CDATA      #FIXED "">

<!ATTLIST TimeSensor
	elapsedTime   %SFTime;  #FIXED ""
	cycleTime     %SFTime;  #FIXED ""
	fraction_changed  %SFFloat; #FIXED ""
	isActive      CDATA    	#FIXED ""
	isPaused      CDATA    	#FIXED ""
	time          %SFTime;  #FIXED "">

<!ATTLIST TimeTrigger
	set_boolean  CDATA #FIXED ""
	triggerTime %SFTime;   #FIXED "">

<!ATTLIST TouchSensor
	hitNormal_changed    %SFVec3f; 	#FIXED ""
	hitPoint_changed     %SFVec3f; 	#FIXED ""
	hitTexCoord_changed  %SFVec2f; 	#FIXED ""
	isActive     CDATA     #FIXED ""
	isOver       CDATA     #FIXED ""
	touchTime    %SFTime;  #FIXED "">

<!ATTLIST Viewpoint
	set_bind    CDATA        #FIXED ""
	bindTime    %SFTime;     #FIXED ""
	isBound     CDATA        #FIXED "">

<!ATTLIST VisibilitySensor
	enterTime %SFTime;  #FIXED ""
	exitTime  %SFTime;  #FIXED ""
	isActive  CDATA     #FIXED "">

<!ATTLIST EspduTransform
	isStandAlone		 		CDATA		#FIXED ""
	isNetworkReader	 			CDATA		#FIXED ""
	isNetworkWriter	 			CDATA		#FIXED ""
	isRtpHeaderHeard     			CDATA		#FIXED ""
	isActive   				CDATA		#FIXED ""
	timestamp	 			%SFTime;	#FIXED ""
	set_articulationParameterValue0		%SFFloat;	#FIXED ""
	set_articulationParameterValue1		%SFFloat;	#FIXED ""
	set_articulationParameterValue2		%SFFloat;	#FIXED ""
	set_articulationParameterValue3		%SFFloat;	#FIXED ""
	set_articulationParameterValue4		%SFFloat;	#FIXED ""
	set_articulationParameterValue5		%SFFloat;	#FIXED ""
	set_articulationParameterValue6		%SFFloat;	#FIXED ""
	set_articulationParameterValue7		%SFFloat;	#FIXED ""
	articulationParameterValue0_changed	%SFFloat;	#FIXED ""
	articulationParameterValue1_changed	%SFFloat;	#FIXED ""
	articulationParameterValue2_changed	%SFFloat;	#FIXED ""
	articulationParameterValue3_changed	%SFFloat;	#FIXED ""
	articulationParameterValue4_changed	%SFFloat;	#FIXED ""
	articulationParameterValue5_changed	%SFFloat;	#FIXED ""
	articulationParameterValue6_changed	%SFFloat;	#FIXED ""
	articulationParameterValue7_changed	%SFFloat;	#FIXED ""
	isCollided   				CDATA		#FIXED ""
	collideTime   				%SFTime;	#FIXED ""
	isDetonated   				CDATA		#FIXED ""
	detonateTime   				%SFTime;	#FIXED ""
	firedTime   				%SFTime;	#FIXED ""
>
<!ATTLIST ReceiverPdu
	isStandAlone		 		CDATA		#FIXED ""
	isNetworkReader	 			CDATA		#FIXED ""
	isNetworkWriter	 			CDATA		#FIXED ""
	isRtpHeaderHeard     			CDATA		#FIXED ""
	isActive   				CDATA		#FIXED ""
	timestamp	 			%SFTime;	#FIXED ""
>

<!ATTLIST SignalPdu
	isStandAlone		 		CDATA		#FIXED ""
	isNetworkReader	 			CDATA		#FIXED ""
	isNetworkWriter	 			CDATA		#FIXED ""
	isRtpHeaderHeard     			CDATA		#FIXED ""
	isActive   				CDATA		#FIXED ""
	timestamp	 			%SFTime;	#FIXED ""
>

<!ATTLIST TransmitterPdu
	isStandAlone		 		CDATA		#FIXED ""
	isNetworkReader	 			CDATA		#FIXED ""
	isNetworkWriter	 			CDATA		#FIXED ""
	isRtpHeaderHeard     			CDATA		#FIXED ""
	isActive   				CDATA		#FIXED ""
	timestamp	 			%SFTime;	#FIXED ""
>

<!ATTLIST GeoElevationGrid
	set_height	%MFDouble; 	#FIXED "">

<!ATTLIST GeoPositionInterpolator
	set_fraction	 %SFFloat;	#FIXED ""
	value_changed	 %SFVec3f;	#FIXED ""
	geovalue_changed %SFVec3d;	#FIXED "">

<!ATTLIST GeoTouchSensor
	isActive		CDATA		#FIXED ""
	isOver			CDATA		#FIXED ""
	touchTime		%SFTime;	#FIXED ""
	hitGeoCoord_changed	%SFVec3d;	#FIXED ""
	hitNormal_changed	%SFVec3f;	#FIXED ""
	hitPoint_changed	%SFVec3f;	#FIXED ""
	hitTexCoord_changed 	%SFVec2f;	#FIXED "">

<!ATTLIST GeoViewpoint
	set_bind        CDATA        #FIXED ""
	set_orientation %SFRotation; #FIXED ""
	set_position    %SFVec3d;    #FIXED ""
	bindTime        %SFTime;     #FIXED ""
	isBound         CDATA        #FIXED "">

<!ATTLIST NurbsOrientationInterpolator
	set_fraction		%SFFloat;	#FIXED ""
	value_changed		%SFRotation;	#FIXED "">

<!ATTLIST NurbsPositionInterpolator
	set_fraction		%SFFloat;	#FIXED ""
	value_changed		%SFVec3f;	#FIXED "">

<!ATTLIST NurbsSurfaceInterpolator
	set_fraction		%SFVec2f;	#FIXED ""
	normal_changed		%SFVec3f;	#FIXED ""
	position_changed	%SFVec3f;	#FIXED "">

<!ATTLIST IndexedQuadSet
	set_index  %MFInt32; #FIXED "">

<!ATTLIST ComposedShader
	isSelected  CDATA #FIXED ""
	isValid  CDATA #FIXED ""
	activate CDATA #FIXED "">

<!ATTLIST PackagedShader
	isSelected  CDATA #FIXED ""
	isValid  CDATA #FIXED ""
	activate CDATA #FIXED "">

<!ATTLIST ProgramShader
	isSelected  CDATA #FIXED ""
	isValid  CDATA #FIXED ""
	activate CDATA #FIXED "">