element ArcStringByBulge
diagram AirQualityReporting_p2110.png
namespace http://www.opengis.net/gml/3.2
type gml:ArcStringByBulgeType
properties
content complex
substGrp gml:AbstractCurveSegment
children gml:pos gml:pointProperty gml:pointRep gml:posList gml:coordinates gml:bulge gml:normal
attributes
Name  Type  Use  Default  Fixed  annotation
numDerivativesAtStartinteger  0    
numDerivativesAtEndinteger  0    
numDerivativeInteriorinteger  0    
interpolationgml:CurveInterpolationType    circularArc2PointWithBulge  
numArcinteger      
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.


XML Schema documentation generated by XMLSpy Schema Editor http://www.altova.com/xmlspy