Schema Central > NIEM 2.1 > geometryPrimitives.xsd > gml:ArcByBulge
Advanced search
Need NIEM Help?

Recommended Reading:

Definitive XML Schema


Web Service Contract Design and Versioning for SOA


Advanced XML Applications



An ArcByBulge is an arc string with only one arc unit, i.e. two control points, one bulge and one normal vector.
As arc is an arc string consisting of a single arc, the attribute "numArc" is fixed to "1".

Element information

Type: gml:ArcByBulgeType

Properties: Global, Qualified



numDerivativesAtStart [0..1]xsd:integerDefault value is "0". from type gml:AbstractCurveSegmentType
numDerivativesAtEnd [0..1]xsd:integerDefault value is "0". from type gml:AbstractCurveSegmentType
numDerivativeInterior [0..1]xsd:integerDefault value is "0". from type gml:AbstractCurveSegmentType
interpolation [0..1]gml:CurveInterpolationTypeFixed value is "circularArc2PointWithBulge". from type gml:ArcStringByBulgeType
numArc [0..1]xsd:integerFixed value is "1".

Used in

Substitution hierarchy

Sample instance

<gml:ArcByBulge numArc="1">
   <gml:pos>1.0 1.0</gml:pos>
   <gml:normal>1.0 1.0</gml:normal>

Site developed and hosted by Datypic, Inc.

Please report errors or comments about this site to