Schema documentation for component gml:Bezier

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Annotations

Attributes

Diagrams

Instances

Properties

Source

Element gml:Bezier

Namespace

http://www.opengis.net/gml/3.2

Annotations

Bezier curves are polynomial splines that use Bezier or Bernstein polynomials for interpolation purposes. It is a special case of the B-Spline curve with two knots.
degree shall be the degree of the polynomial used for interpolation in this spline.
knot shall be the sequence of distinct knots used to define the spline basis functions.
interpolation is fixed as "polynomialSpline".
isPolynomial is fixed as "true".
knotType is not relevant for Bezier curve segments.

Diagram

Type

gml:BezierType

Type hierarchy

gml:AbstractCurveSegmentType
- gml:BSplineType
  - gml:BezierType

Properties

content:

complex

Model

(gml:pos | gml:pointProperty | gml:pointRep | gml:posList | gml:coordinates) , gml:degree , gml:knot{2,2}

Children

gml:coordinates, gml:degree, gml:knot, gml:pointProperty, gml:pointRep, gml:pos, gml:posList

Instance

<gml:Bezier interpolation="polynomialSpline" isPolynomial="true" 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:degree>{1,1}</gml:degree>
  <gml:knot>{2,2}</gml:knot>
</gml:Bezier>

Attributes

QName	Type	Fixed	Default	Use
interpolation	gml:CurveInterpolationType	polynomialSpline		optional
isPolynomial	boolean	true		optional
numDerivativeInterior	integer		0	optional
numDerivativesAtEnd	integer		0	optional
numDerivativesAtStart	integer		0	optional

Source

<element name="Bezier" type="gml:BezierType" substitutionGroup="gml:BSpline">
  <annotation>
    <documentation>Bezier curves are polynomial splines that use Bezier or Bernstein polynomials for interpolation purposes. It is a special case of the B-Spline curve with two knots. degree shall be the degree of the polynomial used for interpolation in this spline. knot shall be the sequence of distinct knots used to define the spline basis functions. interpolation is fixed as "polynomialSpline". isPolynomial is fixed as "true". knotType is not relevant for Bezier curve segments.</documentation>
  </annotation>
</element>

Schema location

http://schemas.opengis.net/gml/3.2.1/geometryPrimitives.xsd