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Element gml:ArcStringByBulge
Namespace http://www.opengis.net/gml/3.2
Annotations
This variant of the arc computes the mid points of the arcs instead of storing the coordinates directly. The control point sequence consists of the start and end points of each arc plus the bulge (see ISO 19107:2003, 6.4.17.2). The normal is a vector normal (perpendicular) to the chord of the arc (see ISO 19107:2003, 6.4.17.4).
The interpolation is fixed as "circularArc2PointWithBulge".
The number of arcs in the arc string may be explicitly stated in the attribute numArc. The number of control points in the arc string shall be numArc + 1.
The content model follows the general pattern for the encoding of curve segments.
Diagram
Diagram index172.tmp#id427 index172.tmp#id428 index172.tmp#id429 index172.tmp#id426 index727.tmp#id447 index727.tmp#id448 index174.tmp#id128 index132.tmp#id267 index175.tmp#id270 index176.tmp#id271 index177.tmp#id129 index727.tmp#id444 index727.tmp#id445 index727.tmp#id443 index728.tmp#id416
Type gml:ArcStringByBulgeType
Type hierarchy
Properties
content: complex
Model (gml:pos | gml:pointProperty | gml:pointRep | gml:posList | gml:coordinates) , gml:bulge+ , gml:normal+
Children gml:bulge, gml:coordinates, gml:normal, gml:pointProperty, gml:pointRep, gml:pos, gml:posList
Instance
<gml:ArcStringByBulge interpolation="circularArc2PointWithBulge" numArc="" numDerivativeInterior="0" numDerivativesAtEnd="0" numDerivativesAtStart="0">
  <gml:pos axisLabels="" srsDimension="" srsName="" uomLabels="">{1,1}</gml:pos>
  <gml:pointProperty xlink:actuate="" xlink:arcrole="" xlink:href="" nilReason="" owns="false" gml:remoteSchema="" xlink:role="" xlink:show="" xlink:title="" xlink:type="simple">{1,1}</gml:pointProperty>
  <gml:pointRep xlink:actuate="" xlink:arcrole="" xlink:href="" nilReason="" owns="false" gml:remoteSchema="" xlink:role="" xlink:show="" xlink:title="" xlink:type="simple">{1,1}</gml:pointRep>
  <gml:posList axisLabels="" count="" srsDimension="" srsName="" uomLabels="">{1,1}</gml:posList>
  <gml:coordinates cs="," decimal="." ts=" ">{1,1}</gml:coordinates>
  <gml:bulge>{1,unbounded}</gml:bulge>
  <gml:normal axisLabels="" srsDimension="" srsName="" uomLabels="">{1,unbounded}</gml:normal>
</gml:ArcStringByBulge>
Attributes
QName Type Fixed Default Use Annotation
interpolation gml:CurveInterpolationType circularArc2PointWithBulge optional
numArc integer optional
numDerivativeInterior integer 0 optional
numDerivativesAtEnd integer 0 optional
numDerivativesAtStart integer 0 optional
Source
<element name="ArcStringByBulge" type="gml:ArcStringByBulgeType" substitutionGroup="gml:AbstractCurveSegment">
  <annotation>
    <documentation>This variant of the arc computes the mid points of the arcs instead of storing the coordinates directly. The control point sequence consists of the start and end points of each arc plus the bulge (see ISO 19107:2003, 6.4.17.2). The normal is a vector normal (perpendicular) to the chord of the arc (see ISO 19107:2003, 6.4.17.4). The interpolation is fixed as "circularArc2PointWithBulge". The number of arcs in the arc string may be explicitly stated in the attribute numArc. The number of control points in the arc string shall be numArc + 1. The content model follows the general pattern for the encoding of curve segments.</documentation>
  </annotation>
</element>
Schema location http://schemas.opengis.net/gml/3.2.1/geometryPrimitives.xsd