Documentation for JSBSim

Target Namespace	None
Element and Attribute Namespaces	Global element and attribute declarations belong to this schema's target namespace. By default, local element declarations belong to this schema's target namespace. By default, local attribute declarations have no namespace.
Documentation	The JSBSim v2.0 configuration file format (JSBSim-ML) is the medium for describing aircraft flight characteristics to the JSBSim code. For more information about JSBSim, see the web site at: www.jsbsim.org. The config file format stores and conveys the characteristics of any unique aircraft to the JSBSim executable. The information that is specified in the configuration file includes: - Administrative - Geometric and measurement - Mass and weight/balance - Buoyant forces - Ground contact - External reactions - Propulsion - Systems - Autopilot - Flight control - Aerodynamics - Input - Output The basic structure of the configuration file at the highest level is shown beginning with the fdm_config element definition.

Prefix	Namespace
xml	http://www.w3.org/XML/1998/namespace
xs	http://www.w3.org/2001/XMLSchema

Name	abs
Used by (from the same schema document)	Model Group func_group
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	acos
Used by (from the same schema document)	Model Group func_group
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	actuator
Used by (from the same schema document)	Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	An actuator component models a general purpose mechanical effector. The actuator can exhibit a lag, can be rate- and position-limited, can feature a bias, can have a deadband, and it can feature hysteresis.

Name	aerodynamics
Used by (from the same schema document)	Element fdm_config
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	aerosurface_scale
Used by (from the same schema document)	Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	The aerosurface scale component maps an input value (which must fall within the span specified in the domain element) to an output value that falls within the span specified in the range element. For example, if the actual input value is 30% of the distance from the minimum to the maximum domain value, the output would be the value corresponding to 30% of the span of the range, from the minimum range value.

Name	alphalimits
Used by (from the same schema document)	Element aerodynamics
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	asin
Used by (from the same schema document)	Model Group func_group
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	atan
Used by (from the same schema document)	Model Group func_group
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	atan2
Used by (from the same schema document)	Model Group func_group
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	autopilot
Used by (from the same schema document)	Element fdm_config
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	The autopilot section is not required for many uses, including for use within Flightgear. The autopilot functions can be specified within the autopilot section, or a file name can be given where the autopilot is specified.

Name	avg
Used by (from the same schema document)	Model Group func_group
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	axis
Used by (from the same schema document)	Element aerodynamics
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	brake_group
Used by (from the same schema document)	Element contact
Type	xs:NCName
Nillable	no
Abstract	no

Name	buoyant_forces
Used by (from the same schema document)	Element fdm_config
Type	anyType
Nillable	no
Abstract	no

Name	capacity
Used by (from the same schema document)	Element tank
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	channel
Used by (from the same schema document)	Element system , Element autopilot , Element flight_control
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	chord
Used by (from the same schema document)	Element metrics
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	Chord (longitudinal reference length) for the vehicle being modeled. The default unit is feet (FT).

Name	clipto
Used by (from the same schema document)	Element lag_filter , Element summer , Element aerosurface_scale , Element kinematic , Element lead_lag_filter , Element washout_filter , Element integrator , Element pid , Element second_order_filter , Element pure_gain , Element scheduled_gain , Element switch , Element sensor , Element actuator , Element deadband , Element fcs_function
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	This element specifies a minimum and/or a maximum limit that the associated component will be allowed to have. The result will be clipped to the specified limits.

Name	contact
Used by (from the same schema document)	Element ground_reactions
Type	Locally-defined complex type
Nillable	no
Abstract	no

Schema Component Representation

<xs:element name="contact">

<xs:complexType>

<xs:all>

<xs:element ref=" location "/>

<xs:element name="static_friction" type=" xs:double "/>

<xs:element name="dynamic_friction" type=" xs:double "/>

<xs:element name="spring_coeff">

<xs:complexType>

<xs:simpleContent>

<xs:extension base=" PositiveNumber ">

<xs:attribute name="unit" type=" SpringCoeffType " use="optional" default="LBS/FT"/>

</xs:extension>

</xs:simpleContent>

</xs:complexType>

</xs:element>

<xs:element name="damping_coeff">

<xs:complexType>

<xs:simpleContent>

<xs:extension base=" PositiveNumber ">

<xs:attribute name="unit" type=" DampingCoeffType " use="optional" default="LBS/FT/SEC"/>

</xs:extension>

</xs:simpleContent>

</xs:complexType>

</xs:element>

<xs:element name="damping_coeff_rebound" minOccurs="0">

<xs:complexType>

<xs:simpleContent>

<xs:extension base=" PositiveNumber ">

<xs:attribute name="unit" type=" DampingCoeffType " use="optional" default="LBS/FT/SEC"/>

</xs:extension>

</xs:simpleContent>

</xs:complexType>

</xs:element>

<xs:element name="rolling_friction" type=" xs:double " minOccurs="0"/>

<xs:element name="max_steer" minOccurs="0">

<xs:complexType>

<xs:simpleContent>

<xs:extension base=" PositiveNumber ">

<xs:attribute name="unit" type=" AngleType " use="optional" default="DEG"/>

</xs:extension>

</xs:simpleContent>

</xs:complexType>

</xs:element>

<xs:element ref=" brake_group " minOccurs="0"/>

<xs:element ref=" retractable " minOccurs="0"/>

<xs:element name="relaxation_velocity" minOccurs="0">

<xs:complexType>

<xs:sequence>

<xs:element name="rolling">

<xs:complexType>

<xs:simpleContent>

<xs:extension base=" xs:float ">

<xs:attribute name="unit" default="FT/SEC" use="optional"/>

</xs:extension>

</xs:simpleContent>

</xs:complexType>

</xs:element>

<xs:element name="side">

<xs:complexType>

<xs:simpleContent>

<xs:extension base=" xs:float ">

<xs:attribute name="unit" default="FT/SEC" use="optional"/>

</xs:extension>

</xs:simpleContent>

</xs:complexType>

</xs:element>

</xs:sequence>

</xs:complexType>

</xs:element>

<xs:element ref=" force_lag_filter " minOccurs="0"/>

<xs:element name="wheel_slip_filter" type=" xs:float " minOccurs="0"/>

</xs:all>

<xs:attribute name="name" type=" xs:string " use="required"/>

<xs:attribute name="type" use="required">

<xs:simpleType>

<xs:restriction base=" xs:string ">

<xs:enumeration value="BOGEY"/>

<xs:enumeration value="STRUCTURE"/>

</xs:restriction>

</xs:simpleType>

</xs:attribute>

</xs:complexType>

</xs:element>

Element: contents

Name	contents
Used by (from the same schema document)	Element tank
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: cos

Name	cos
Used by (from the same schema document)	Model Group func_group
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: deadband

Name	deadband
Used by (from the same schema document)	Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: default

Name	default
Used by (from the same schema document)	Element switch
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: description

Name	description
Used by (from the same schema document)	Element function
Type	xs:string
Nillable	no
Abstract	no

Element: difference

Name	difference
Used by (from the same schema document)	Model Group func_group
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: direction

Name	direction
Used by (from the same schema document)	Element force
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	A direction is a unit vector, containing an x, Y, and Z element which defines a direction in a specified frame.

Element: domain

Name	domain
Used by (from the same schema document)	Element aerosurface_scale
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	The domain defines the minimum and maximum input value allowed.

Element: emptywt

Name	emptywt
Used by (from the same schema document)	Element mass_balance
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	Empty weight of vehicle.

Element: engine

Name	engine
Used by (from the same schema document)	Element propulsion
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: external_reactions

Name	external_reactions
Used by (from the same schema document)	Element fdm_config
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: fcs_function

Name	fcs_function
Used by (from the same schema document)	Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: fdm_config

Name	fdm_config
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	This is the root element for a JSBSim config file.

XML Instance Representation

<fdm_config
name=" xs:string [1]

'The name of the aircraft this model represents.'

"
release=" xs:string (value comes from list: {'PRODUCTION'|'ALPHA'|'BETA'}) [0..1]

'A release type of ALPHA or BETA will print out a warning message explaining that this preproduction release may not be of high quality.'

"
version=" xs:string (pattern = [0-9](.[0-9])*) [1]

'Often, the version may initially be simply specified as \"\$Revision: 1.24 $\", so that a configuration management tool such as cvs can automatically generate revision numbers.'

<fileheader> ... </fileheader> [1]

<metrics> ... </metrics> [1]

<mass_balance> ... </mass_balance> [1]

<ground_reactions> ... </ground_reactions> [0..1]

<external_reactions> ... </external_reactions> [0..1]

<buoyant_forces> ... </buoyant_forces> [0..1]

<propulsion> ... </propulsion> [0..1]

<system> ... </system> [0..*]

<autopilot> ... </autopilot> [0..1]

<flight_control> ... </flight_control> [0..1]

<aerodynamics> ... </aerodynamics> [0..1]

<input> ... </input> [0..1]

<output> ... </output> [0..*]

</fdm_config>

Schema Component Representation

<xs:element name="fdm_config">

<xs:complexType>

<xs:sequence>

<xs:element ref=" fileheader "/>

<--The file creation information. -->

<xs:element ref=" metrics "/>

<--The geometric information for the aircraft model. -->

<xs:element ref=" mass_balance "/>

<-- The weight and balance information for the aircraft model.</xs:annotation -->

<xs:element ref=" ground_reactions " minOccurs="0"/>

<--The landing gear and/or structural contact point information for the aircraft model. -->

<xs:element ref=" external_reactions " minOccurs="0"/>

<--The external reactions information for the aircraft model. -->

<xs:element ref=" buoyant_forces " minOccurs="0"/>

<--The external reactions information for the aircraft model. -->

<xs:element ref=" propulsion " minOccurs="0"/>

<-- The propulsion system information for the aircraft model. -->

<xs:element ref=" system " minOccurs="0" maxOccurs="unbounded"/>

<-- The systems reference -->

<xs:element ref=" autopilot " minOccurs="0"/>

<-- The autopilot definition for the aircraft model. -->

<xs:element ref=" flight_control " minOccurs="0"/>

<-- The flight control system for the aircraft model. -->

<xs:element ref=" aerodynamics " minOccurs="0"/>

<-- The aerodynamics definition for the aircraft model. -->

<xs:element ref=" input " minOccurs="0"/>

<-- The input definition for the aircraft model. -->

<xs:element ref=" output " minOccurs="0" maxOccurs="unbounded"/>

<--The output specification for the aircraft model. -->

</xs:sequence>

<xs:attribute name="name" type=" xs:string " use="required"/>

<xs:attribute name="release" use="optional" default="PRODUCTION">

<xs:simpleType>

<xs:restriction base=" xs:string ">

<xs:enumeration value="PRODUCTION"/>

<xs:enumeration value="ALPHA"/>

<xs:enumeration value="BETA"/>

</xs:restriction>

</xs:simpleType>

</xs:attribute>

<xs:attribute name="version" use="required">

<xs:simpleType>

<xs:restriction base=" xs:string ">

<xs:pattern value="[0-9](.[0-9])*"/>

</xs:restriction>

</xs:simpleType>

</xs:attribute>

</xs:complexType>

</xs:element>

Element: feed

Name	feed
Used by (from the same schema document)	Element engine
Type	xs:integer
Nillable	no
Abstract	no

Element: fileheader

Name	fileheader
Used by (from the same schema document)	Element fdm_config
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	The fileheader section is where important information about the model is recorded. The authors, their contact information and affiliation, are all documented in this section. Notes about the model, as well as limitations and reference information are also recorded in this section.

XML Instance Representation

<fileheader>
Start Choice [0..*]

<author> xs:string </author> [1]

'The name of the model author[s].'

<email> xs:string </email> [1]

'The contact email address for an author (optional).'

<organization> xs:string </organization> [1]

'The organization that the author[s] belongs to.'

End Choice

<license
licenseName=" xs:string [0..1]

'The name of the license, e.g. \"GPL\".'

"
licenseURL=" xs:anyURI [0..1]

'The URL where the license can be found.'

"/> [0..1]

'This is an optional field for a license name and URL.'

<sensitivity> xs:string </sensitivity> [0..1]

'This field stores the sensitivity classification, such as \"classified\", \"secret\", \"proprietary\", etc.'

<filecreationdate> xs:date </filecreationdate> [0..1]

'The date that the model was initially created in the form yyyy-mm-dd'

<version> xs:string </version> [0..1]

'The version number in the form #.#, or #.#.#, etc. This can also simply be a cvs keyword, such as \"\$Revision: 1.24 $\".'

<description> xs:string </description> [0..1]

'A simple text description of the aircraft model.'

Start Choice [0..*]

<note> xs:string </note> [1]

'Notes are general notes about the model, perhaps such as special information helpful in flying it.'

<limitation> xs:string </limitation> [1]

'Limitations for this model should be noted. For instance, if gear is not aerodynamically modeled.'

<reference> ... </reference> [1]

'All references used in creating this model should be included.'

End Choice
</fileheader>

Element: flight_control

Name	flight_control
Used by (from the same schema document)	Element fdm_config
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: force

Name	force
Used by (from the same schema document)	Element external_reactions
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: force_lag_filter

Name	force_lag_filter
Used by (from the same schema document)	Element contact
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: fraction

Name	fraction
Used by (from the same schema document)	Model Group func_group
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: function

Name	function
Used by (from the same schema document)	Element fcs_function , Element aerodynamics , Element axis , Element force
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: ground_reactions

Name	ground_reactions
Used by (from the same schema document)	Element fdm_config
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: htailarea

Name	htailarea
Used by (from the same schema document)	Element metrics
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	Horizontal tail area. The default unit is square feet (FT2).

Element: htailarm

Name	htailarm
Used by (from the same schema document)	Element metrics
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	Horizontal tail arm. This is the distance from the center of gravity to the quarter chord of the horizontal tail. The default unit is feet (FT).

Element: hysteresis_limits

Name	hysteresis_limits
Used by (from the same schema document)	Element aerodynamics
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: independentVar

Name	independentVar
Used by (from the same schema document)	Element table
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: input

Name	input
Used by (from the same schema document)	Element fdm_config
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: integer

Name	integer
Used by (from the same schema document)	Model Group func_group
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: integrator

Name	integrator
Used by (from the same schema document)	Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no

Element: ixx

Name	ixx
Used by (from the same schema document)	Element mass_balance
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	Moment of Inertia, Ixx

Element: ixy

Element: ixz

Element: iyy

Element: iyz

Element: izz

Element: kinematic

Element: lag_filter

Element: lead_lag_filter

Element: location

Element: mass_balance

Element: max

Element: metrics

Element: min

Element: mod

Element: noise

Element: orient

Element: output

Schema Component Representation

<xs:element name="output">

<xs:complexType>

<xs:choice maxOccurs="3">

<xs:sequence minOccurs="0" maxOccurs="unbounded">

<xs:element name="property" type=" xs:string " minOccurs="0" maxOccurs="unbounded"/>

</xs:sequence>

<xs:sequence minOccurs="0">

<xs:element name="simulation" type=" xs:string " minOccurs="0"/>

<xs:element name="atmosphere" type=" xs:string " minOccurs="0"/>

<xs:element name="massprops" type=" xs:string " minOccurs="0"/>

<xs:element name="rates" type=" xs:string " minOccurs="0"/>

<xs:element name="velocities" type=" xs:string " minOccurs="0"/>

<xs:element name="forces" type=" xs:string " minOccurs="0"/>

<xs:element name="moments" type=" xs:string " minOccurs="0"/>

<xs:element name="position" type=" xs:string " minOccurs="0"/>

<xs:element name="propulsion" type=" xs:string " minOccurs="0"/>

<xs:element name="aerosurfaces" type=" xs:string " minOccurs="0"/>

<xs:element name="fcs" type=" xs:string " minOccurs="0"/>

<xs:element name="ground_reactions" type=" xs:string " minOccurs="0"/>

<xs:element name="coefficients" type=" xs:string " minOccurs="0"/>

</xs:sequence>

</xs:choice>

<xs:attribute name="name" type=" xs:string "/>

<xs:attribute name="port" type=" xs:integer "/>

<xs:attribute name="rate" type=" xs:integer "/>

<xs:attribute name="type">

<xs:simpleType>

<xs:restriction base=" xs:string ">

<xs:enumeration value="CSV"/>

<xs:enumeration value="TABULAR"/>

<xs:enumeration value="SOCKET"/>

<xs:enumeration value="NONE"/>

</xs:restriction>

</xs:simpleType>

</xs:attribute>

</xs:complexType>

</xs:element>

Element: p_factor

Element: pid

Element: pitch

Element: pointmass

Element: pow

Element: product

Element: property

Element: propulsion

Element: pure_gain

Element: quantization

Element: quotient

Element: radius

Element: range

Element: reference

Element: retractable

Element: roll

Element: scheduled_gain

Element: second_order_filter

Element: sense

Element: sensor

Element: setting

Element: sin

Element: sum

Element: summer

Element: switch

Element: system

Element: table

Element: tableData

Element: tan

Element: tank

Element: test

Element: thruster

Element: traverse

Element: value

Element: vtailarea

Element: vtailarm

Element: washout_filter

Element: weight

Element: width

Element: wing_incidence

Element: wingarea

Element: wingspan

Element: x

Element: y

Element: yaw

Element: z

Global Definitions

Model Group: func_group

Simple Type: AngleType

Simple Type: AreaType

Simple Type: DampingCoeffType

Simple Type: InertiaType

Simple Type: LengthType

Simple Type: PositiveNumber

Simple Type: SpringCoeffType

Simple Type: WeightType

Legend

Complex Type:

Schema Component Type

AusAddress

Schema Component Name

Super-types:	Address < AusAddress (by extension)
Sub-types:	QLDAddress (by restriction)

If this schema component is a type definition, its type hierarchy is shown in a gray-bordered box.

Name	AusAddress
Abstract	no

The table above displays the properties of this schema component.

XML Instance Representation

<... country="Australia" >
<unitNo> string </unitNo> [0..1]
<houseNo> string </houseNo> [1]
<street> string </street> [1]
Start Choice [1]
<city> string </city> [1]
<town> string </town> [1]
End Choice
<state> AusStates </state> [1]
<postcode> string <<pattern = [1-9][0-9]{3}>> </postcode> [1] ?
</...>

The XML Instance Representation table above shows the schema component's content as an XML instance.

The minimum and maximum occurrence of elements and attributes are provided in square brackets, e.g. [0..1].
Model group information are shown in gray, e.g. Start Choice ... End Choice.
For type derivations, the elements and attributes that have been added to or changed from the base type's content are shown in bold.
If an element/attribute has a fixed value, the fixed value is shown in green, e.g. country="Australia".
Otherwise, the type of the element/attribute is displayed.
- If the element/attribute's type is in the schema, a link is provided to it.
- For local simple type definitions, the constraints are displayed in angle brackets, e.g. <<pattern = [1-9][0-9]{3}>>.
If a local element/attribute has documentation, it will be displayed in a window that pops up when the question mark inside the attribute or next to the element is clicked, e.g. <postcode>.

Schema Component Representation

The Schema Component Representation table above displays the underlying XML representation of the schema component. (Annotations are not shown.)

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Glossary

Abstract (Applies to complex type definitions and element declarations). An abstract element or complex type cannot used to validate an element instance. If there is a reference to an abstract element, only element declarations that can substitute the abstract element can be used to validate the instance. For references to abstract type definitions, only derived types can be used.

All Model Group Child elements can be provided in any order in instances. See: http://www.w3.org/TR/xmlschema-1/#element-all.

Choice Model Group Only one from the list of child elements and model groups can be provided in instances. See: http://www.w3.org/TR/xmlschema-1/#element-choice.

Collapse Whitespace Policy Replace tab, line feed, and carriage return characters with space character (Unicode character 32). Then, collapse contiguous sequences of space characters into single space character, and remove leading and trailing space characters.

Disallowed Substitutions (Applies to element declarations). If substitution is specified, then substitution group members cannot be used in place of the given element declaration to validate element instances. If derivation methods, e.g. extension, restriction, are specified, then the given element declaration will not validate element instances that have types derived from the element declaration's type using the specified derivation methods. Normally, element instances can override their declaration's type by specifying an xsi:type attribute.

Key Constraint Like Uniqueness Constraint, but additionally requires that the specified value(s) must be provided. See: http://www.w3.org/TR/xmlschema-1/#cIdentity-constraint_Definitions.

Key Reference Constraint Ensures that the specified value(s) must match value(s) from a Key Constraint or Uniqueness Constraint. See: http://www.w3.org/TR/xmlschema-1/#cIdentity-constraint_Definitions.

Model Group Groups together element content, specifying the order in which the element content can occur and the number of times the group of element content may be repeated. See: http://www.w3.org/TR/xmlschema-1/#Model_Groups.

Nillable (Applies to element declarations). If an element declaration is nillable, instances can use the xsi:nil attribute. The xsi:nil attribute is the boolean attribute, nil, from the http://www.w3.org/2001/XMLSchema-instance namespace. If an element instance has an xsi:nil attribute set to true, it can be left empty, even though its element declaration may have required content.

Notation A notation is used to identify the format of a piece of data. Values of elements and attributes that are of type, NOTATION, must come from the names of declared notations. See: http://www.w3.org/TR/xmlschema-1/#cNotation_Declarations.

Preserve Whitespace Policy Preserve whitespaces exactly as they appear in instances.

Prohibited Derivations (Applies to type definitions). Derivation methods that cannot be used to create sub-types from a given type definition.

Prohibited Substitutions (Applies to complex type definitions). Prevents sub-types that have been derived using the specified derivation methods from validating element instances in place of the given type definition.

Replace Whitespace Policy Replace tab, line feed, and carriage return characters with space character (Unicode character 32).

Sequence Model Group Child elements and model groups must be provided in the specified order in instances. See: http://www.w3.org/TR/xmlschema-1/#element-sequence.

Substitution Group Elements that are members of a substitution group can be used wherever the head element of the substitution group is referenced.

Substitution Group Exclusions (Applies to element declarations). Prohibits element declarations from nominating themselves as being able to substitute a given element declaration, if they have types that are derived from the original element's type using the specified derivation methods.

Target Namespace The target namespace identifies the namespace that components in this schema belongs to. If no target namespace is provided, then the schema components do not belong to any namespace.

Uniqueness Constraint Ensures uniqueness of an element/attribute value, or a combination of values, within a specified scope. See: http://www.w3.org/TR/xmlschema-1/#cIdentity-constraint_Definitions.

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Generated by <oXygen/> XML Editor using a modified version of xs3p that adds schema diagrams and chunking support. Last modified:

Name	kinematic
Used by (from the same schema document)	Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	lag_filter
Used by (from the same schema document)	Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	lead_lag_filter
Used by (from the same schema document)	Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	location
Used by (from the same schema document)	Element metrics , Element mass_balance , Element pointmass , Element force , Element contact , Element engine , Element thruster , Element tank
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	A location is a vector, containing an x, Y, and Z, element. The default unit is inches (IN). The unit is specifed in the unit attribute of the location - not in the individual x, y, or z child elements.

Name	mass_balance
Used by (from the same schema document)	Element fdm_config
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	Mass properties are specified in this section. The moments of inertia are specified first. All of Ixx, Iyy, and Izz are required, in order. The products of inertia are not required but, if present, must appear in order Ixy, Ixz, Iyz. Next, the empty weight of the aircraft, and the CG location are specified, in that order. Finally, any number of point masses can be specified.

Name	metrics
Used by (from the same schema document)	Element fdm_config
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	The metrics section holds information about the geometric characteristics of the aircraft that are important for the equations of motion and aerodynamics. Wing (or reference) area, wing span (or lateral reference length), and wing chord (or longitudinal reference length) are all recorded in this section. The center of graivty is also recorded in this section. Units may be given as shown in this section.

Name	noise
Used by (from the same schema document)	Element sensor
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	The noise can be entered as a percentage of the signal, or as an absolute value.

Name	orient
Used by (from the same schema document)	Element engine , Element thruster
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	output
Used by (from the same schema document)	Element fdm_config
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	p_factor
Used by (from the same schema document)	Element thruster
Type	xs:decimal
Nillable	no
Abstract	no

Name	pitch
Used by (from the same schema document)	Element orient
Type	xs:double
Nillable	no
Abstract	no

Name	pointmass
Used by (from the same schema document)	Element mass_balance
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	product
Used by (from the same schema document)	Model Group func_group
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	property
Used by (from the same schema document)	Element system , Element autopilot , Element flight_control , Element external_reactions , Element product , Element difference , Element sum , Element quotient , Element abs , Element pow , Element sin , Element cos , Element tan , Element asin , Element acos , Element atan , Element atan2 , Element min , Element max , Element avg , Element fraction , Element integer , Element mod
Type	xs:string
Nillable	no
Abstract	no

Name	propulsion
Used by (from the same schema document)	Element fdm_config
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	pure_gain
Used by (from the same schema document)	Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	quantization
Used by (from the same schema document)	Element sensor
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	quotient
Used by (from the same schema document)	Model Group func_group
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	radius
Used by (from the same schema document)	Element tank
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	range
Used by (from the same schema document)	Element aerosurface_scale
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	The range defines the minimum and maximum output value mapped..

Documentation for JSBSim

Table of Contents

Schema Document Properties

Declared Namespaces

Global Declarations

Element: abs

Element: acos

Element: actuator

Element: aerodynamics

Element: aerosurface_scale

Element: alphalimits

Element: asin

Element: atan

Element: atan2

Element: autopilot

Element: avg

Element: axis

Element: brake_group

Element: buoyant_forces

Element: capacity

Element: channel

Element: chord

Element: clipto

Element: contact

Element: contents

Element: cos

Element: deadband

Element: default

Element: description

Element: difference

Element: direction

Element: domain

Element: emptywt

Element: engine

Element: external_reactions

Element: fcs_function

Element: fdm_config

Element: feed

Element: fileheader

Element: flight_control

Element: force

Element: force_lag_filter

Element: fraction

Element: function

Element: ground_reactions

Element: htailarea

Element: htailarm

Element: hysteresis_limits

Element: independentVar

Element: input

Element: integer

Element: integrator

Element: ixx

Element: ixy

Element: ixz

Element: iyy

Element: iyz

Element: izz

Element: kinematic

Element: lag_filter

Element: lead_lag_filter

Element: location

Element: mass_balance

Element: max

Element: metrics

Element: min

Element: mod

Element: noise

Element: orient

Element: output

Element: p_factor

Element: pid

Element: pitch

Element: pointmass

Element: pow

Element: product

Element: property

Element: propulsion

Element: pure_gain

Element: quantization

Name	reference
Used by (from the same schema document)	Element fileheader
Type	Locally-defined complex type
Nillable	no
Abstract	no
Documentation	A reference consists of an author, a publication date, a reference ID (document ID, etc.), and of course a title. The title is the only item in a reference that is required.

Name	retractable
Used by (from the same schema document)	Element contact
Type	xs:integer
Nillable	no
Abstract	no

Name	roll
Used by (from the same schema document)	Element orient
Type	xs:double
Nillable	no
Abstract	no

Name	scheduled_gain
Used by (from the same schema document)	Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	second_order_filter
Used by (from the same schema document)	Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	sense
Used by (from the same schema document)	Element thruster
Type	xs:integer
Nillable	no
Abstract	no

Name	sensor
Used by (from the same schema document)	Element system , Element autopilot , Element flight_control , Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	setting
Used by (from the same schema document)	Element traverse
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	summer
Used by (from the same schema document)	Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no

Name	switch
Used by (from the same schema document)	Element channel
Type	Locally-defined complex type
Nillable	no
Abstract	no