| <?xml version="1.0" encoding="UTF-8"?> <!-- edited with XMLSpy v2005 sp2 U (http://www.altova.com) by Arnold Rots (Smithsonian Observatory) --> <!-- edited with XMLSPY v2004 rel. 4 U (http://www.xmlspy.com) by Arnold Rots (Smithsonian Observatory) --> <!-- edited with XML Spy v4.4 U (http://www.xmlspy.com) by Arnold Rots (Smithsonian Astrophysical Observatory) --> <!-- $Id: stc.xsd,v 2.6 2005/02/25 19:30:24 arots Exp arots $ --> <!-- Schema definition for the SpaceTimeCoords --> <!--Change Log: $Log: stc.xsd,v $ Revision 2.6 2005/02/25 19:30:24 arots IVOA version 1.20: Distinguished LSRK and LSRD, LOCAL_GROUP_CENTER replaces SUPER_GALACTIC_CENTER Subtle changes to force validation by Xerces-J2: slight obfuscation Added TEB time scale, warning on use of ISOTime (> 0001-01-01 !) Added reference spheroid to GEO_D, changed GEO to GEO_C Added discussion of planetographic vs planetocentric systems, right- and left-handed systems Removed GEOGRAPHIC CoordFlavor (is really 3-D spherical); added POLAR Revision 2.5 2005/01/05 14:22:11 arots Release Verion 1.10 Added Pixel Space; overhaul of inheritance and polymorphism Revision 2.4 2004/07/23 21:17:50 arots Modified ivoa schema locations; changed URN from nvo- to vo- Revision 2.3 2004/07/16 22:37:53 arots Release version v1.0. Revision 2.2 2004/07/07 16:16:22 arots Completed conversion to substitution groups. This version is ready for review. revision 2.1 date: 2004/05/23 03:32:59; author: arots; state: Exp; lines: +798 -1 Fixed line breaks revision 2.0 date: 2004/05/21 21:09:17; author: arots; state: Exp; lines: +1 -679 Reworking with substitution groups and generalized CoordSys & Coords. revision 1.10 date: 2004/03/31 21:20:30; author: arots; state: Exp; lines: +362 -218 Proper units and improvements. Revision 1.9 2003/08/06 19:31:04 arots Added time reference direction to time frame. Revision 1.8 2003/05/15 10:04:23 arots Allow multiple intervals, add fill factor. Revision 1.7 2003/05/08 20:28:19 arots Added spectral coordinate. Fixed intervals. Rationalized coordinate frames. Revision 1.6 2003/05/02 18:46:43 arots Removed coord_sys_id attribute from time interval. Revision 1.5 2003/04/30 16:55:58 arots Added CoordSpec to Resource and Search - was needed. Revision 1.4 2003/04/30 13:27:12 arots Fixed up change log, changed schema locations. Revision 1.3 2003/04/29 21:04:37 arots Trivial. Revision 1.2 2003/04/29 20:56:40 arots Completed new astronTimeType and proper handling of units. Revision 1.1 2003/04/28 16:25:34 arots Initial revision --> <xs:schema elementFormDefault="qualified" targetNamespace="http://www.ivoa.net/xml/STC/stc-v1.20.xsd" xmlns:crd="http://www.ivoa.net/xml/STC/STCcoords/v1.20" xmlns:reg="http://www.ivoa.net/xml/STC/STCregion/v1.20" xmlns:stc="http://www.ivoa.net/xml/STC/stc-v1.20.xsd" xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:import namespace="http://www.ivoa.net/xml/STC/STCcoords/v1.20" schemaLocation="http://docs.g-vo.org/schemata/coords-v1.20.xsd"/> <xs:import namespace="http://www.ivoa.net/xml/STC/STCregion/v1.20" schemaLocation="http://vo.ari.uni-heidelberg.de/docs/schemata/region-v1.20.xsd"/> <!-- CoordSystem --> <!-- Reference frames --> <xs:annotation> <xs:documentation>A CoordFrame has to have at least a name</xs:documentation> </xs:annotation> <xs:sequence> </xs:sequence> </xs:complexType> <xs:annotation> <xs:documentation>CoordFrame substitution group head element</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> Coordinate equinox: B{year} or J{year} with at least one decimal; do not use in conjunction with ICRS </xs:documentation> </xs:annotation> <xs:pattern value="[BJ]\-?\d?\d?\d?\d\d\d\d\.\d\d?\d?"/> </xs:restriction> </xs:simpleType> <xs:annotation> <xs:documentation>Abstract space reference frame type</xs:documentation> </xs:annotation> </xs:complexType> <xs:annotation> <xs:documentation>ICRS type: no equinox</xs:documentation> </xs:annotation> <xs:complexContent> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>FK[45] type: needs an equinox</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation> A custom space reference frame type defined through pole and X-axis directions </xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:annotation> <xs:documentation> Define coordinate reference frame from scratch; pole and X-axis need to be defined in a known coordinate system </xs:documentation> </xs:annotation> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation> Head element for the Coordinate reference frame substitution group: optional equinox with either a standard reference system (ICRS, FK5, FK4) and optional standard pole (equatorial, ecliptic, galactic, etc.), or a custom frame with pole (positive Z-axis) and positive X-axis direction </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>The ICRS reference frame</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>FK4; needs a Besselian epoch</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>FK5; needs a Julian epoch</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Ecliptic coordinates; needs an epoch</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Galactic coordinates; first system</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Galactic coordinates; second system</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>SuperGalactic coordinates</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Local Azimuth and Elevation coordinates</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Generic Body coordinates</xs:documentation> </xs:annotation> </xs:element> <!--Solar and earth-related coordinate frames; see Fraenz & Harper 2002, Plan & Sp Sci 50, 217--> <xs:annotation> <xs:documentation>The Geocentric (co-rotating) reference frame</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The Geodetic reference frame; semi-major axis and inverse flattening may be provided to define the reference spheroid; the default is the IAU 1976 reference spheroid </xs:documentation> </xs:annotation> <xs:complexType> <xs:complexContent> </xs:extension> </xs:complexContent> </xs:complexType> </xs:element> <xs:annotation> <xs:documentation>The Geomagnetic reference frame</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>The Geocentric Solar Ecliptic reference frame</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>The Geocentric Solar Magnetic reference frame</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>The Solar Magnetic reference frame</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>The Heliographic reference frame</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>The Heliocentric Earth Ecliptic reference frame</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>The Heliocentric Earth Equatorial reference frame</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>The Heliocentric Inertial reference frame</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>The Heliocentric of Date reference frame</xs:documentation> </xs:annotation> </xs:element> <!--Planetocentric (co-rotating) system coordinate frames; see Explanatory Supplement, Sec 7.4 or Fraenz & Harper 2002, Plan & Sp Sci 50, 217, Table 6--> <xs:annotation> <xs:documentation> The planetocentric reference frame anchored on Mercury </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetocentric reference frame anchored on Venus </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The lunacentric reference frame anchored on the moon </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetocentric reference frame anchored on Mars </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetocentric reference frame anchored on Jupiter </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetocentric reference frame anchored on Saturn </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetocentric reference frame anchored on Uranus </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetocentric reference frame anchored on Neptune </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetocentric reference frame anchored on Pluto </xs:documentation> </xs:annotation> </xs:element> <!--Planetographic (co-rotating) system coordinate frames; see Explanatory Supplement, Sec 7.4 or Fraenz & Harper 2002, Plan & Sp Sci 50, 217, Table 6--> <xs:annotation> <xs:documentation> The planetographic reference frame anchored on Mercury </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetographic reference frame anchored on Venus </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The lunagraphic reference frame anchored on the moon </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetographic reference frame anchored on Mars </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetographic reference frame anchored on Jupiter </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetographic reference frame anchored on Saturn </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetographic reference frame anchored on Uranus </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetographic reference frame anchored on Neptune </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The planetographic reference frame anchored on Pluto </xs:documentation> </xs:annotation> </xs:element> <!--Unknown space reference frame; the client is responsible for assigning a default--> <xs:annotation> <xs:documentation> Unknown space reference frame; the client is responsible for assigning a default </xs:documentation> </xs:annotation> </xs:element> <!--The Custom frame--> <xs:element name="CustomSpaceRefFrame" substitutionGroup="stc:SpaceRefFrame" type="stc:customSpaceRefFrameType"> <xs:annotation> <xs:documentation> Coordinate reference frame: a custom pole (positive Z-axis) and positive X-axis direction </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> If solar system positions are implied anywhere, the planetary ephemeris to be used needs to be provided - usually JPL-DE405 with ICRS and JPL-DE200 with FK5 </xs:documentation> </xs:annotation> <xs:enumeration value="JPL-DE200"/> <xs:enumeration value="JPL-DE405"/> </xs:restriction> </xs:simpleType> <xs:annotation> <xs:documentation>Abstract type for reference positions</xs:documentation> </xs:annotation> </xs:complexType> <xs:annotation> <xs:documentation>Type for standard reference positions</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation> Type for custom positions: specifies reference origin </xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation> Head element from the ReferencePosition substitution group: either a "known place" such as geocenter or barycenter (RefPos), or a position defined in a known coordinate system (CoordOrigin) </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Location of the observer/telescope</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Barycenter of the solar system</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Center of the sun</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Center of the earth</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> (Kinematic) Local Standard of Rest (only used for Doppler velocities); equivalent to LSRK </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> Kinematic Local Standard of Rest (only used for Doppler velocities); equivalent to LSR </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> Dynamic Local Standard of Rest (only used for Doppler velocities) </xs:documentation> </xs:annotation> </xs:element> <xs:element name="GALACTIC_CENTER" substitutionGroup="stc:ReferencePosition" type="stc:stdRefPosType"> <xs:annotation> <xs:documentation>Center of the Galaxy</xs:documentation> </xs:annotation> </xs:element> <xs:element name="LOCAL_GROUP_CENTER" substitutionGroup="stc:ReferencePosition" type="stc:stdRefPosType"> <xs:annotation> <xs:documentation>Center of the Local Group</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Center of the Moon</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Barycenter of the Earth-Moon system</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Center of Mercury</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Center of Venus</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Center of Mars</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Center of Jupiter</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Center of Saturn</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Center of Uranus</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Center of Neptune</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Center of Pluto</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> A relocatable origin, especially useful for simulations </xs:documentation> </xs:annotation> </xs:element> <xs:element name="UNKNOWNRefPos" substitutionGroup="stc:ReferencePosition" type="stc:stdRefPosType"> <xs:annotation> <xs:documentation> Unknown origin; the client is responsible for assigning a default </xs:documentation> </xs:annotation> </xs:element> <xs:element name="CustomRefPos" substitutionGroup="stc:ReferencePosition" type="stc:customRefPosType"> <xs:annotation> <xs:documentation> Origin of the coordinate system, given as a position in another, known, coordinate system </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> Provides the coordinate definitions: number of axes, SPHERICAL, CARTESIAN, or UNITSPHERE, presence of velocities </xs:documentation> </xs:annotation> <xs:simpleType> <xs:minInclusive value="1"/> <xs:maxInclusive value="3"/> </xs:restriction> </xs:simpleType> </xs:attribute> </xs:complexType> <xs:annotation> <xs:documentation> Abstract head element for the CoordFlavor substitution group </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> Spherical 2-D (longitude, latitude) or 3-D (long, lat, radius/elevation) coordinates </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Cartesian 1-, 2-, or 3-D coordinates</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> 3-D Unit sphere coordinates (direction cosines); in (long,lat), X is in the direction (0,0), Y (pi/2,0), Z (0,pi/2) </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>2-D polar coordinates (radius, posangle)</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> A spatial coordinate frame consists of a coordinate frame and a reference position </xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:annotation> <xs:documentation> Coordinate reference frame: optional equinox with either a standard reference system (ICRS, FK5, FK4) and optional standard pole (equatorial, ecliptic, galactic, etc.), or pole (positive Z-axis) and positive X-axis direction </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> Origin of the coordinate reference frame: either a "known place" such as geocenter or barycenter, or a position defined in a known coordinate system </xs:documentation> </xs:annotation> </xs:element> <xs:complexType> <xs:sequence> </xs:sequence> </xs:complexType> </xs:element> <xs:annotation> <xs:documentation> Provides the coordinate definitions: number of axes, SPHERICAL or CARTESIAN, presence of velocities, and the Doppler definitions (if needed) </xs:documentation> </xs:annotation> </xs:element> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation> The time reference frame consists of a timescale, a reference position, and optionally a reference direction (needed when transformations have been applied) </xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:annotation> <xs:documentation> The time reference frame consists of a time scale, a time format, and a reference time, if needed </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> Origin of the coordinate reference frame: either a "known place" such as geocenter or barycenter, or a position defined in a known coordinate system </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> Some time transformations (e.g., change of RefPos) depend on an assumed directonal position of the source </xs:documentation> </xs:annotation> </xs:element> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Contains the spectral frame reference position</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:annotation> <xs:documentation> The reference frame for the Doppler velocities; note presence of LSR </xs:documentation> </xs:annotation> </xs:element> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation> The Doppler definition used: optical, radio, or pseudo-relativistic (i.e., how is a redshift converted to a velocity); the most common is optical, except when the reference is LSR (usually radio) </xs:documentation> </xs:annotation> <xs:enumeration value="OPTICAL"/> <xs:enumeration value="RADIO"/> <xs:enumeration value="RELATIVISTIC"/> </xs:restriction> </xs:simpleType> <xs:annotation> <xs:documentation> Contains the Doppler definitions, including whether the values are velocity or redshift (value_type) </xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:annotation> <xs:documentation> The Doppler definition used: optical, radio, or pseudo-relativistic (i.e., how is a redshift converted to a velocity); the most common is optical, except when the reference is LSR (usually radio) </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The reference frame for the Doppler velocities; note presence of LSR </xs:documentation> </xs:annotation> </xs:element> </xs:sequence> <xs:simpleType> <xs:enumeration value="VELOCITY"/> <xs:enumeration value="REDSHIFT"/> </xs:restriction> </xs:simpleType> </xs:attribute> </xs:extension> </xs:complexContent> </xs:complexType> <!--CoordSys definition--> <xs:annotation> <xs:documentation> A CoordSys consists of at least one coordinate frames </xs:documentation> </xs:annotation> <xs:sequence maxOccurs="unbounded"> <xs:sequence maxOccurs="unbounded" minOccurs="0"> </xs:sequence> </xs:sequence> </xs:complexType> <xs:annotation> <xs:documentation>Head element (not abstract) of the CoordSys group</xs:documentation> </xs:annotation> </xs:element> <!-- AstroCoordSystem --> <xs:annotation> <xs:documentation>The time coordinate reference frame</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>The spatial coordinate reference frame</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The reference frame for the spectral coordinate; note presence of LSR </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> Contains the Doppler definitions, including whether the values are velocity or redshift (value_type) </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Element for pixel Coordinate Frames</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Element for generic Coordinate Frames</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The astroniomical coordinate system definition: spatial coordinate frame and reference position; time frame and reference position; the coordinate flavor; spectral frame and (optionally) Doppler frame; and the planetary ephemeris; an ID is required, since this is how coordinate elements are associated with their coordinate systems </xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:sequence maxOccurs="unbounded" minOccurs="0"> </xs:sequence> </xs:sequence> </xs:restriction> </xs:complexContent> </xs:complexType> <xs:element name="AstroCoordSystem" substitutionGroup="stc:CoordSys" type="stc:astroCoordSystemType"> <xs:annotation> <xs:documentation> The coordinate system definition: spatial coordinate frame and reference position; time frame and reference position; the coordinate flavor; and the planetary ephemeris; an ID is required, since this is how coordinate elements are associated with their coordinate systems </xs:documentation> </xs:annotation> </xs:element> <!--Pixel coordinate system--> <xs:annotation> <xs:documentation>The pixel coordinate system definition</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:sequence maxOccurs="unbounded"> </xs:sequence> </xs:sequence> </xs:restriction> </xs:complexContent> </xs:complexType> <xs:element name="PixelCoordSystem" substitutionGroup="stc:CoordSys" type="stc:pixelCoordSystemType"> <xs:annotation> <xs:documentation>Pixel form of CoordSys</xs:documentation> </xs:annotation> </xs:element> <!--Types for CoordArea--> <xs:annotation> <xs:documentation>Abstact coordinate interval type</xs:documentation> </xs:annotation> <xs:annotation> <xs:documentation>Limit to be included?</xs:documentation> </xs:annotation> </xs:attribute> <xs:annotation> <xs:documentation>Limit to be included?</xs:documentation> </xs:annotation> </xs:attribute> <xs:annotation> <xs:documentation>Fraction of interval that is occupied by data</xs:documentation> </xs:annotation> </xs:attribute> </xs:complexType> <xs:annotation> <xs:documentation> The time interval needs to contain a start time or a stop time or both; it needs to refer to a coordinate system; boundaries may or may not be inclusive </xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:annotation> <xs:documentation> astronTime may be expressed in ISO8601 or as a double relative to a reference time </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> astronTime may be expressed in ISO8601 or as a double relative to a reference time </xs:documentation> </xs:annotation> </xs:element> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Scalar coordinate interval type</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:annotation> <xs:documentation>Lower bound of interval</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Upper bound of interval</xs:documentation> </xs:annotation> </xs:element> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>2-D coordinate interval type</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>3-D coordinate interval type</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation> The spatial coordinate interval substitution group head element; such an element needs to contain a minimum or maximum scalar or vector value, or both; it needs to refer to a coordinate system; boundaries may or may not be inclusive; and it can have a fill factor </xs:documentation> </xs:annotation> </xs:element> <xs:element name="CoordScalarInterval" substitutionGroup="stc:CoordInterval" type="stc:coordScalarIntervalType"> <xs:annotation> <xs:documentation>An interval in a scalar coordinate</xs:documentation> </xs:annotation> </xs:element> <xs:element name="Coord2VecInterval" substitutionGroup="stc:CoordInterval" type="stc:coord2VecIntervalType"> <xs:annotation> <xs:documentation>An interval ("box") in a 2-D coordinate pair</xs:documentation> </xs:annotation> </xs:element> <xs:element name="Coord3VecInterval" substitutionGroup="stc:CoordInterval" type="stc:coord3VecIntervalType"> <xs:annotation> <xs:documentation>An interval ("cube") in a 3-D coordinate triplet</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Parent type for spatial intervals</xs:documentation> </xs:annotation> </xs:complexType> <xs:annotation> <xs:documentation>Defines a sphere</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Defines a velocity sphere</xs:documentation> </xs:annotation> <xs:complexContent> <xs:annotation> <xs:documentation> A special kind of area is a circle or sphere (in two or three dimensions), defined by a center position and a radius; the radius requires a unit </xs:documentation> </xs:annotation> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Contains a spatial position CoordInterval</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Contains a spatial velocity CoordInterval</xs:documentation> </xs:annotation> <xs:complexContent> <xs:annotation> <xs:documentation> A special kind of area is a circle or sphere (in two or three dimensions), defined by a center position and a radius; the radius requires a unit </xs:documentation> </xs:annotation> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Points to a Region file</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Contains an abstract Region</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <!-- CoordArea --> <xs:annotation> <xs:documentation> The spatial interval substitution group head element; a spatial coordinate interval (volume) is specified as a circle (cone) or sphere; a 1-D, 2-D, or 3-D interval; a Region; or a RegionFile </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> Defines a sphere (3-D) region for spatial coordinates; contains a center position and a radius </xs:documentation> </xs:annotation> </xs:element> <xs:element name="PositionInterval" substitutionGroup="stc:SpatialInterval" type="stc:positionIntervalType"> <xs:annotation> <xs:documentation> Contains a CoordInterval element: a 1-D range, 2-D box, or 3-D cube </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>A region as defined in a FITS region file</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Contains a region as defined in the Region schema</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> Contains a Velocity CoordInterval element: a 1-D range, 2-D box, or 3-D cube; plus a time unit for velocity values </xs:documentation> </xs:annotation> </xs:element> <xs:element name="VelocitySphere" substitutionGroup="stc:VelInterval" type="stc:velocitySphereType"> <xs:annotation> <xs:documentation> Defines a sphere (3-D) region for velocity coordinates; contains a center position and a radius </xs:documentation> </xs:annotation> </xs:element> <xs:element name="VelocityInterval" substitutionGroup="stc:VelInterval" type="stc:velocityIntervalType"> <xs:annotation> <xs:documentation> Contains a CoordInterval element: a 1-D range, 2-D box, or 3-D cube </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Contains a 1-D spectral interval</xs:documentation> </xs:annotation> <xs:complexContent> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation> Contains a 1-D redshift interval; position and time units are required if redshifts are expressed as Doppler velocities </xs:documentation> </xs:annotation> <xs:complexContent> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Generalized coordinate area type</xs:documentation> </xs:annotation> <xs:sequence maxOccurs="unbounded"> <xs:element maxOccurs="unbounded" minOccurs="0" name="SpectralInterval" type="stc:spectralIntervalType"/> <xs:element maxOccurs="unbounded" minOccurs="0" name="RedshiftInterval" type="stc:redshiftIntervalType"/> <xs:sequence maxOccurs="unbounded" minOccurs="0"> </xs:sequence> </xs:sequence> </xs:complexType> <xs:annotation> <xs:documentation>Astronomical area type</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:element maxOccurs="unbounded" minOccurs="0" name="SpectralInterval" type="stc:spectralIntervalType"/> <xs:element maxOccurs="unbounded" minOccurs="0" name="RedshiftInterval" type="stc:redshiftIntervalType"/> <xs:sequence maxOccurs="unbounded" minOccurs="0"> </xs:sequence> </xs:sequence> </xs:restriction> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Pixel area type</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:sequence maxOccurs="unbounded"> </xs:sequence> </xs:sequence> </xs:restriction> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation> General coordinate area description; head element but not abstract </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Astronomical coordinate volume</xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation>Pixel space bounds</xs:documentation> </xs:annotation> </xs:element> <!-- Toplevel: STCmetadata contains a choice of: ResourceProfile, SearchLocation, CatalogEntryLocation, and ObservationLocation plus ObservatoryLocation elements --> <xs:annotation> <xs:documentation>Abstract stcMetadata type</xs:documentation> </xs:annotation> </xs:complexType> <xs:annotation> <xs:documentation>Generalized single stcMetadata type</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:sequence maxOccurs="unbounded"> </xs:sequence> <xs:sequence maxOccurs="unbounded" minOccurs="0"> </xs:sequence> <xs:sequence maxOccurs="unbounded" minOccurs="0"> </xs:sequence> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Type for STC Resource Profile</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:sequence maxOccurs="unbounded"> <xs:annotation> <xs:documentation> The coordinate system definition: spatial coordinate frame and reference position; time frame and reference position; the coordinate flavor; and the planetary ephemeris; an ID is required, since this is how coordinate elements are associated with their coordinate systems </xs:documentation> </xs:annotation> </xs:element> </xs:sequence> <xs:annotation> <xs:documentation> CoordSpec contains information on time and spatial resolution, errors, and pixelsizes (if fixed); typical best numbers are expected </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> The coverage area of the resource; the fill factor does not need to be 1.0 </xs:documentation> </xs:annotation> </xs:element> </xs:sequence> </xs:restriction> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Type for STC search location</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:sequence maxOccurs="unbounded"> </xs:sequence> <xs:sequence minOccurs="0"> </xs:sequence> </xs:sequence> </xs:restriction> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Type for STC catalog entry description</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:sequence maxOccurs="unbounded"> </xs:sequence> <xs:sequence maxOccurs="unbounded"> </xs:sequence> <xs:sequence maxOccurs="unbounded" minOccurs="0"> </xs:sequence> </xs:sequence> </xs:restriction> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Type for observational STC metadata</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:annotation> <xs:documentation> Describes the spatial and temporal volume covered by an observation </xs:documentation> </xs:annotation> <xs:annotation> <xs:documentation> Specifies the location of the observatory during the observation </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> Describes the spatial and temporal coverage of the observation </xs:documentation> </xs:annotation> </xs:element> <xs:annotation> <xs:documentation> Defines the pixel coordinate system for pixelated data </xs:documentation> </xs:annotation> </xs:element> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Type for an observatory location</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:sequence maxOccurs="unbounded"> </xs:sequence> </xs:sequence> </xs:restriction> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation> Type for describing the coordinate volume occupied by observational data, as seen from the observatory location </xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:sequence maxOccurs="unbounded"> </xs:sequence> <xs:sequence minOccurs="0"> </xs:sequence> </xs:sequence> </xs:restriction> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation>Type to specify a pixel space</xs:documentation> </xs:annotation> <xs:complexContent> <xs:sequence> <xs:sequence maxOccurs="unbounded" minOccurs="0"> </xs:sequence> </xs:sequence> </xs:restriction> </xs:complexContent> </xs:complexType> <xs:annotation> <xs:documentation> Toplevel: Abstract STCmetadata contains a choice of: ResourceProfile, SearchLocation, CatalogEntryLocation, or ObservationLocation plus ObservatoryLocation elements </xs:documentation> </xs:annotation> </xs:element> <xs:element name="STCResourceProfile" substitutionGroup="stc:STCmetadata" type="stc:stcResourceProfileType"> <xs:annotation> <xs:documentation> Describes the spatial and temporal coverage of a resource </xs:documentation> </xs:annotation> </xs:element> <xs:element name="SearchLocation" substitutionGroup="stc:STCmetadata" type="stc:searchLocationType"> <xs:annotation> <xs:documentation> Defines the spatial and temporal coordinate space specified by a query </xs:documentation> </xs:annotation> </xs:element> <xs:element name="CatalogEntryLocation" substitutionGroup="stc:STCmetadata" type="stc:catalogEntryLocationType"> <xs:annotation> <xs:documentation> Describes the spatial and temporal coverage of a catalog (fragment) and contains the coordinates of the catalog entries; multiple coordinate systems are allowed </xs:documentation> </xs:annotation> </xs:element> <xs:element name="ObsDataLocation" substitutionGroup="stc:STCmetadata" type="stc:obsDataLocationType"> <xs:annotation> <xs:documentation> Describes the coordinate system used in and coordinate space occupied by a particular observational dataset; it contains an observation location, an observatory location, and optionally a pixel coordinate system </xs:documentation> </xs:annotation> </xs:element> </xs:schema> |
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