geo:Surface
A Surface is a 2-dimensional primitive and is composed of one or more surface patches. The surface patches are connected to one another.
Element information
Namespace: http://niem.gov/niem/geospatial/2.1
Schema document: geospatial/2.1/geospatial.xsd
Type: geo:SurfaceType
Properties: Global, Qualified, Nillable
Content
- Choice [0..*]
- gml:Surface A Surface is a 2-dimensional primitive and is composed of one or more surface patches as specified in ISO 19107:2003, 6.3.17.1. The surface patches are connected to one another. patches encapsulates the patches of the surface.
- gml:PolyhedralSurface A polyhedral surface is a surface composed of polygon patches connected along their common boundary curves. This differs from the surface type only in the restriction on the types of surface patches acceptable. polygonPatches encapsulates the polygon patches of the polyhedral surface.
- gml:TriangulatedSurface A triangulated surface is a polyhedral surface that is composed only of triangles. There is no restriction on how the triangulation is derived. trianglePatches encapsulates the triangles of the triangulated surface.
- gml:Tin A tin is a triangulated surface that uses the Delauny algorithm or a similar algorithm complemented with consideration of stoplines (stopLines), breaklines (breakLines), and maximum length of triangle sides (maxLength). controlPoint shall contain a set of the positions (three or more) used as posts for this TIN (corners of the triangles in the TIN). See ISO 19107:2003, 6.4.39 for details.
from subst. group gml:Surfacefrom subst. group gml:TriangulatedSurface
Attributes
Name | Occ | Type | Description | Notes |
---|---|---|---|---|
s:id | [0..1] | xsd:ID | from type s:ComplexObjectType | |
s:metadata | [0..1] | xsd:IDREFS | from type s:ComplexObjectType | |
s:linkMetadata | [0..1] | xsd:IDREFS | from type s:ComplexObjectType |
Sample instance
<geo:Surface> <gml:Surface gml:id="ID"> <gml:metaDataProperty> <gml:GenericMetaData>Any text, intermingled with:... </gml:GenericMetaData> </gml:metaDataProperty> <gml:description>string</gml:description> <gml:descriptionReference/> <gml:identifier codeSpace="http://www.example.com/">string</gml:identifier> <gml:name>string</gml:name> <gml:patches> <gml:PolygonPatch>... </gml:PolygonPatch> </gml:patches> </gml:Surface> </geo:Surface>