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Element gml:ArcByCenterPoint
Namespace http://www.opengis.net/gml/3.2
Annotations
This variant of the arc requires that the points on the arc shall be computed instead of storing the coordinates directly. The single control point is the center point of the arc plus the radius and the bearing at start and end. This representation can be used only in 2D.
The element radius specifies the radius of the arc.
The element startAngle specifies the bearing of the arc at the start.
The element endAngle specifies the bearing of the arc at the end.
The interpolation is fixed as "circularArcCenterPointWithRadius".
Since this type describes always a single arc, the attribute "numArc" is fixed to "1".
The content model follows the general pattern for the encoding of curve segments.
Diagram
Diagram index142.tmp#id400 index142.tmp#id401 index142.tmp#id402 index142.tmp#id399 index204.tmp#id436 index204.tmp#id437 index144.tmp#id125 index145.tmp#id409 index146.tmp#id410 index147.tmp#id411 index148.tmp#id126 index204.tmp#id431 index204.tmp#id433 index204.tmp#id435 index204.tmp#id430 index684.tmp#id391
Type gml:ArcByCenterPointType
Type hierarchy
Properties
content: complex
Model (gml:pos | gml:pointProperty | gml:pointRep | gml:posList | gml:coordinates) , gml:radius , gml:startAngle{0,1} , gml:endAngle{0,1}
Children gml:coordinates, gml:endAngle, gml:pointProperty, gml:pointRep, gml:pos, gml:posList, gml:radius, gml:startAngle
Instance
<gml:ArcByCenterPoint interpolation="circularArcCenterPointWithRadius" numArc="1" 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:radius uom="">{1,1}</gml:radius>
  <gml:startAngle uom="">{0,1}</gml:startAngle>
  <gml:endAngle uom="">{0,1}</gml:endAngle>
</gml:ArcByCenterPoint>
Attributes
QName Type Fixed Default Use Annotation
interpolation gml:CurveInterpolationType circularArcCenterPointWithRadius optional
numArc integer 1 required
numDerivativeInterior integer 0 optional
numDerivativesAtEnd integer 0 optional
numDerivativesAtStart integer 0 optional
Source
<element name="ArcByCenterPoint" type="gml:ArcByCenterPointType" substitutionGroup="gml:AbstractCurveSegment">
  <annotation>
    <documentation>This variant of the arc requires that the points on the arc shall be computed instead of storing the coordinates directly. The single control point is the center point of the arc plus the radius and the bearing at start and end. This representation can be used only in 2D. The element radius specifies the radius of the arc. The element startAngle specifies the bearing of the arc at the start. The element endAngle specifies the bearing of the arc at the end. The interpolation is fixed as "circularArcCenterPointWithRadius". Since this type describes always a single arc, the attribute "numArc" is fixed to "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