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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 index88.tmp#id478 index88.tmp#id479 index88.tmp#id480 index88.tmp#id477 index414.tmp#id497 index414.tmp#id498 index90.tmp#id119 index91.tmp#id327 index92.tmp#id328 index93.tmp#id329 index94.tmp#id120 index414.tmp#id495 index414.tmp#id496 index414.tmp#id494 index1315.tmp#id467
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