Schema Central > NIEM 2.1 > geometryBasic0d1d.xsd > gml:DirectPositionType
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Direct position instances hold the coordinates for a position within some coordinate reference system (CRS). Since direct positions, as data types, will often be included in larger objects (such as geometry elements) that have references to CRS, the srsName attribute will in general be missing, if this particular direct position is included in a larger element with such a reference to a CRS. In this case, the CRS is implicitly assumed to take on the value of the containing object's CRS.
if no srsName attribute is given, the CRS shall be specified as part of the larger context this geometry element is part of, typically a geometric object like a point, curve, etc.

Complex type information


from type gml:doubleList
  • List of:
  • Attributes

    srsName [0..1]xsd:anyURIfrom group gml:SRSReferenceGroup
    srsDimension [0..1]xsd:positiveIntegerfrom group gml:SRSReferenceGroup
    axisLabels [0..1]gml:NCNameListfrom group gml:SRSInformationGroup
    uomLabels [0..1]gml:NCNameListfrom group gml:SRSInformationGroup

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    Type inheritance chain

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