Schema Central > NIEM 2.1 > geometryBasic0d1d.xsd > gml:DirectPositionListType
Advanced search
Need NIEM Help?

Recommended Reading:

Definitive XML Schema


Web Service Contract Design and Versioning for SOA


Advanced XML Applications



posList instances (and other instances with the content model specified by DirectPositionListType) hold the coordinates for a sequence of direct positions within the same coordinate reference system (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. 
The optional attribute count specifies the number of direct positions in the list. If the attribute count is present then the attribute srsDimension shall be present, too.
The number of entries in the list is equal to the product of the dimensionality of the coordinate reference system (i.e. it is a derived value of the coordinate reference system definition) and the number of direct positions.

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
    count [0..1]xsd:positiveInteger

    Used by

    Type inheritance chain

    Site developed and hosted by Datypic, Inc.

    Please report errors or comments about this site to