complexType SphereType

diagram
namespace	http://www.opengis.net/gml
type	extension of gml:AbstractGriddedSurfaceType
properties	base  gml:AbstractGriddedSurfaceType
children	gml:row gml:rows gml:columns
used by	element  Sphere
attributes	Name   Type   Use   Default   Fixed   annotation horizontalCurveType gml:CurveInterpolationType       circularArc3Points   verticalCurveType gml:CurveInterpolationType       circularArc3Points
annotation	documentation A sphere is a gridded surface given as a    family of circles whose positions vary linearly along the    axis of the sphere, and whise radius varies in proportions to    the cosine function of the central angle. The horizontal    circles resemble lines of constant latitude, and the vertical    arcs resemble lines of constant longitude.    NOTE! If the control points are sorted in terms of increasing    longitude, and increasing latitude, the upNormal of a sphere    is the outward normal.    EXAMPLE If we take a gridded set of latitudes and longitudes    in degrees,(u,v) such as (-90,-180)  (-90,-90)  (-90,0)  (-90,  90) (-90, 180) (-45,-180)  (-45,-90)  (-45,0)  (-45,  90) (-45, 180) (  0,-180)  (  0,-90)  (  0,0)  (  0,  90) (  0, 180) ( 45,-180)  ( 45,-90)  ( 45,0)  ( 45, -90) ( 45, 180) ( 90,-180)  ( 90,-90)  ( 90,0)  ( 90, -90) ( 90, 180)       And map these points to 3D using the usual equations (where R    is the radius of the required sphere).     z = R sin u     x = (R cos u)(sin v)     y = (R cos u)(cos v)    We have a sphere of Radius R, centred at (0,0), as a gridded    surface. Notice that the entire first row and the entire last    row of the control points map to a single point in each 3D    Euclidean space, North and South poles respectively, and that    each horizontal curve closes back on itself forming a    geometric cycle. This gives us a metrically bounded (of finite    size), topologically unbounded (not having a boundary, a    cycle) surface.
source	<xs:complexType name="SphereType">   <xs:annotation>     <xs:documentation>A sphere is a gridded surface given as a    family of circles whose positions vary linearly along the    axis of the sphere, and whise radius varies in proportions to    the cosine function of the central angle. The horizontal    circles resemble lines of constant latitude, and the vertical    arcs resemble lines of constant longitude.    NOTE! If the control points are sorted in terms of increasing    longitude, and increasing latitude, the upNormal of a sphere    is the outward normal.    EXAMPLE If we take a gridded set of latitudes and longitudes    in degrees,(u,v) such as (-90,-180)  (-90,-90)  (-90,0)  (-90,  90) (-90, 180) (-45,-180)  (-45,-90)  (-45,0)  (-45,  90) (-45, 180) (  0,-180)  (  0,-90)  (  0,0)  (  0,  90) (  0, 180) ( 45,-180)  ( 45,-90)  ( 45,0)  ( 45, -90) ( 45, 180) ( 90,-180)  ( 90,-90)  ( 90,0)  ( 90, -90) ( 90, 180)       And map these points to 3D using the usual equations (where R    is the radius of the required sphere).     z = R sin u     x = (R cos u)(sin v)     y = (R cos u)(cos v)    We have a sphere of Radius R, centred at (0,0), as a gridded    surface. Notice that the entire first row and the entire last    row of the control points map to a single point in each 3D    Euclidean space, North and South poles respectively, and that    each horizontal curve closes back on itself forming a    geometric cycle. This gives us a metrically bounded (of finite    size), topologically unbounded (not having a boundary, a    cycle) surface.</xs:documentation>   </xs:annotation>   <xs:complexContent>     <xs:extension base="gml:AbstractGriddedSurfaceType">       <xs:attribute name="horizontalCurveType" type="gml:CurveInterpolationType" fixed="circularArc3Points"/>       <xs:attribute name="verticalCurveType" type="gml:CurveInterpolationType" fixed="circularArc3Points"/>     </xs:extension>   </xs:complexContent> </xs:complexType>

attribute SphereType/@horizontalCurveType

type	gml:CurveInterpolationType
properties	isRef  0 fixed  circularArc3Points
facets	Kind  Value  annotation  enumeration  linear  enumeration  geodesic  enumeration  circularArc3Points  enumeration  circularArc2PointWithBulge  enumeration  circularArcCenterPointWithRadius  enumeration  elliptical  enumeration  clothoid  enumeration  conic  enumeration  polynomialSpline  enumeration  cubicSpline  enumeration  rationalSpline
source	<xs:attribute name="horizontalCurveType" type="gml:CurveInterpolationType" fixed="circularArc3Points"/>

attribute SphereType/@verticalCurveType

type	gml:CurveInterpolationType
properties	isRef  0 fixed  circularArc3Points
facets	Kind  Value  annotation  enumeration  linear  enumeration  geodesic  enumeration  circularArc3Points  enumeration  circularArc2PointWithBulge  enumeration  circularArcCenterPointWithRadius  enumeration  elliptical  enumeration  clothoid  enumeration  conic  enumeration  polynomialSpline  enumeration  cubicSpline  enumeration  rationalSpline
source	<xs:attribute name="verticalCurveType" type="gml:CurveInterpolationType" fixed="circularArc3Points"/>

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