org.deegree.gml.geometry
Class GML3CurveSegmentReader

java.lang.Object
  org.deegree.gml.geometry.GML3GeometryBaseReader
      org.deegree.gml.geometry.GML3CurveSegmentReader

 class GML3CurveSegmentReader
extends GML3GeometryBaseReader

Handles the parsing of gml:_CurveSegment elements, i.e concrete element declarations that are in the substitution group gml:_CurveSegment.

This class handles all 15 concrete substitutions for gml:_CurveSegment that are defined in GML 3.1.1:

• Arc
• ArcByBulge
• ArcByCenterPoint
• ArcString
• ArcStringByBulge
• Bezier
• BSpline
• Circle
• CircleByCenterPoint
• Clothoid
• CubicSpline
• Geodesic
• GeodesicString
• LineStringSegment
• OffsetCurve

Version:

$Revision:$, $Date:$

Author:

Markus Schneider , last edited by: $Author:$

Field Summary

Fields inherited from class org.deegree.gml.geometry.GML3GeometryBaseReader

geomFac, gmlNs, version

Constructor Summary

GML3CurveSegmentReader(GML3GeometryReader geometryParser, GeometryFactory geomFac)


Method Summary

(package private) Points	parseControlPoints(XMLStreamReaderWrapper xmlStream, CRS crs) Parses the control points of a curve segment element.
(package private) CurveSegment	parseCurveSegment(XMLStreamReaderWrapper xmlStream, CRS defaultCRS) Returns the object representation for a gml:_CurveSegment element.
(package private) LineStringSegment	parseLineStringSegment(XMLStreamReaderWrapper xmlStream, CRS defaultCRS) Returns the object representation of a (<gml:LineStringSegment>) element.

Methods inherited from class org.deegree.gml.geometry.GML3GeometryBaseReader

determineActiveCRS, determineCoordDimensions, parseAngleType, parseCoordinates, parseCoordType, parseDirectPositionType, parseDoubleList, parseLengthType, parseMeasureType, parseOrientation, parsePosList

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GML3CurveSegmentReader

GML3CurveSegmentReader(GML3GeometryReader geometryParser,
                       GeometryFactory geomFac)

Parameters:

geometryParser -

geomFac -

Method Detail

parseCurveSegment

CurveSegment parseCurveSegment(XMLStreamReaderWrapper xmlStream,
                               CRS defaultCRS)
                         throws XMLParsingException,
                                XMLStreamException,
                                UnknownCRSException

Returns the object representation for a gml:_CurveSegment element. Consumes all corresponding events from the associated XMLStream.

• Precondition: cursor must point at the START_ELEMENT event (<gml:_CurveSegment>)
• Postcondition: cursor points at the next event after the END_ELEMENT (</gml:_CurveSegment>)

This method handles all 15 concrete substitutions for gml:_CurveSegment that are defined in GML 3.1.1:

• Arc
• ArcByBulge
• ArcByCenterPoint
• ArcString
• ArcStringByBulge
• Bezier
• BSpline
• Circle
• CircleByCenterPoint
• Clothoid
• CubicSpline
• Geodesic
• GeodesicString
• LineStringSegment
• OffsetCurve

Parameters:

xmlStream - cursor must point at the START_ELEMENT event (<gml:_CurveSegment>), points at the corresponding END_ELEMENT event (</gml:_CurveSegment>) afterwards

defaultCRS - default CRS for the geometry, this is only used if the "gml:_CurveSegment" has no srsName attribute

Returns:

corresponding CurveSegment object

Throws:

XMLParsingException

XMLStreamException

UnknownCRSException

parseLineStringSegment

LineStringSegment parseLineStringSegment(XMLStreamReaderWrapper xmlStream,
                                         CRS defaultCRS)
                                   throws XMLParsingException,
                                          XMLStreamException,
                                          UnknownCRSException

Returns the object representation of a (<gml:LineStringSegment>) element. Consumes all corresponding events from the given XMLStream.

• Precondition: cursor must point at the START_ELEMENT event (<gml:LineStringSegment>)
• Postcondition: cursor points at the corresponding END_ELEMENT event (</gml:LineStringSegment>)

Parameters:

xmlStream -

defaultCRS - default CRS for the geometry, this is propagated if no deeper srsName attribute is specified

Returns:

corresponding LineStringSegment object

Throws:

XMLParsingException

XMLStreamException

UnknownCRSException

parseControlPoints

Points parseControlPoints(XMLStreamReaderWrapper xmlStream,
                          CRS crs)
                    throws XMLParsingException,
                           XMLStreamException,
                           UnknownCRSException

Parses the control points of a curve segment element.

The parsed structure is specified by the following XSD choice:

 <choice>
   <choice minOccurs="0" maxOccurs="unbounded">
     <element ref="gml:pos"/>
     <element ref="gml:pointProperty"/>
     <element ref="gml:pointRep">
   </choice>
   <element ref="gml:posList"/>
   <element ref="gml:coordinates"/>
   <element ref="gml:coord"/>
 </choice>
 

Precondition: the current event must be the first START_ELEMENT of the choice. If this is not the case, an XMLParsingException is thrown.
Postcondition: the current event is the first tag event after the last END_ELEMENT that belongs to the choice

Parameters:

xmlStream -

crs - default CRS for the points, this is used if no srsName attribute is specified

Returns:

control points of the curve segment, not null, but size may be zero

Throws:

XMLStreamException

XMLParsingException

UnknownCRSException