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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 docindex298.tmp#id549 docindex298.tmp#id550 docindex298.tmp#id551 docindex298.tmp#id548 docindex309.tmp#id579 docindex309.tmp#id580 docindex148.tmp#id125 docindex149.tmp#id268 docindex150.tmp#id273 docindex151.tmp#id274 docindex152.tmp#id126 docindex309.tmp#id574 docindex309.tmp#id576 docindex309.tmp#id578 docindex309.tmp#id573 docindex1222.tmp#id538
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