Package net.opengis.gml311

Interface ClothoidType

All Superinterfaces:

AbstractCurveSegmentType, EObject, Notifier

All Known Implementing Classes:

ClothoidTypeImpl

public interface ClothoidType
extends AbstractCurveSegmentType

A representation of the model object 'Clothoid Type'. A clothoid, or Cornu's spiral, is plane curve whose curvature is a fixed function of its length. In suitably chosen co-ordinates it is given by Fresnel's integrals. x(t) = 0-integral-t cos(AT*T/2)dT y(t) = 0-integral-t sin(AT*T/2)dT This geometry is mainly used as a transition curve between curves of type straight line to circular arc or circular arc to circular arc. With this curve type it is possible to achieve a C2-continous transition between the above mentioned curve types. One formula for the Clothoid is A*A = R*t where A is constant, R is the varying radius of curvature along the the curve and t is the length along and given in the Fresnel integrals.

The following features are supported:

• Ref Location
• Scale Factor
• Start Parameter
• End Parameter

See Also:

Gml311Package.getClothoidType()

Method Summary

Modifier and Type	Method	Description
double	getEndParameter()	Returns the value of the 'End Parameter' attribute.
RefLocationType	getRefLocation()	Returns the value of the 'Ref Location' containment reference.
BigDecimal	getScaleFactor()	Returns the value of the 'Scale Factor' attribute.
double	getStartParameter()	Returns the value of the 'Start Parameter' attribute.
boolean	isSetEndParameter()	Returns whether the value of the 'End Parameter' attribute is set.
boolean	isSetStartParameter()	Returns whether the value of the 'Start Parameter' attribute is set.
void	setEndParameter(double value)	Sets the value of the 'End Parameter' attribute.
void	setRefLocation(RefLocationType value)	Sets the value of the 'Ref Location' containment reference.
void	setScaleFactor(BigDecimal value)	Sets the value of the 'Scale Factor' attribute.
void	setStartParameter(double value)	Sets the value of the 'Start Parameter' attribute.
void	unsetEndParameter()	Unsets the value of the 'End Parameter' attribute.
void	unsetStartParameter()	Unsets the value of the 'Start Parameter' attribute.

Methods inherited from interface AbstractCurveSegmentType

getNumDerivativeInterior, getNumDerivativesAtEnd, getNumDerivativesAtStart, isSetNumDerivativeInterior, isSetNumDerivativesAtEnd, isSetNumDerivativesAtStart, setNumDerivativeInterior, setNumDerivativesAtEnd, setNumDerivativesAtStart, unsetNumDerivativeInterior, unsetNumDerivativesAtEnd, unsetNumDerivativesAtStart

Methods inherited from interface EObject

eAllContents, eClass, eContainer, eContainingFeature, eContainmentFeature, eContents, eCrossReferences, eGet, eGet, eInvoke, eIsProxy, eIsSet, eResource, eSet, eUnset

Methods inherited from interface Notifier

eAdapters, eDeliver, eNotify, eSetDeliver

Method Detail

getRefLocation

RefLocationType getRefLocation()

Returns the value of the 'Ref Location' containment reference.

If the meaning of the 'Ref Location' containment reference isn't clear, there really should be more of a description here...

Returns:

the value of the 'Ref Location' containment reference.

See Also:

setRefLocation(RefLocationType), Gml311Package.getClothoidType_RefLocation()

setRefLocation

void setRefLocation(RefLocationType value)

Sets the value of the 'Ref Location' containment reference.

Parameters:

value - the new value of the 'Ref Location' containment reference.

See Also:

getRefLocation()

getScaleFactor

BigDecimal getScaleFactor()

Returns the value of the 'Scale Factor' attribute. The element gives the value for the constant in the Fresnel's integrals.

Returns:

the value of the 'Scale Factor' attribute.

See Also:

setScaleFactor(BigDecimal), Gml311Package.getClothoidType_ScaleFactor()

setScaleFactor

void setScaleFactor(BigDecimal value)

Sets the value of the 'Scale Factor' attribute.

Parameters:

value - the new value of the 'Scale Factor' attribute.

See Also:

getScaleFactor()

getStartParameter

double getStartParameter()

Returns the value of the 'Start Parameter' attribute. The startParameter is the arc length distance from the inflection point that will be the start point for this curve segment. This shall be lower limit used in the Fresnel integral and is the value of the constructive parameter of this curve segment at its start point. The startParameter can either be positive or negative. NOTE! If 0.0 (zero), lies between the startParameter and the endParameter of the clothoid, then the curve goes through the clothoid's inflection point, and the direction of its radius of curvature, given by the second derivative vector, changes sides with respect to the tangent vector. The term length distance for the

Returns:

the value of the 'Start Parameter' attribute.

See Also:

isSetStartParameter(), unsetStartParameter(), setStartParameter(double), Gml311Package.getClothoidType_StartParameter()

setStartParameter

void setStartParameter(double value)

Sets the value of the 'Start Parameter' attribute.

Parameters:

value - the new value of the 'Start Parameter' attribute.

See Also:

isSetStartParameter(), unsetStartParameter(), getStartParameter()

unsetStartParameter

void unsetStartParameter()

Unsets the value of the 'Start Parameter' attribute.

See Also:

isSetStartParameter(), getStartParameter(), setStartParameter(double)

isSetStartParameter

boolean isSetStartParameter()

Returns whether the value of the 'Start Parameter' attribute is set.

Returns:

whether the value of the 'Start Parameter' attribute is set.

See Also:

unsetStartParameter(), getStartParameter(), setStartParameter(double)

getEndParameter

double getEndParameter()

Returns the value of the 'End Parameter' attribute. The endParameter is the arc length distance from the inflection point that will be the end point for this curve segment. This shall be upper limit used in the Fresnel integral and is the value of the constructive parameter of this curve segment at its start point. The startParameter can either be positive or negative.

Returns:

the value of the 'End Parameter' attribute.

See Also:

isSetEndParameter(), unsetEndParameter(), setEndParameter(double), Gml311Package.getClothoidType_EndParameter()

setEndParameter

void setEndParameter(double value)

Sets the value of the 'End Parameter' attribute.

Parameters:

value - the new value of the 'End Parameter' attribute.

See Also:

isSetEndParameter(), unsetEndParameter(), getEndParameter()

unsetEndParameter

void unsetEndParameter()

Unsets the value of the 'End Parameter' attribute.

See Also:

isSetEndParameter(), getEndParameter(), setEndParameter(double)

isSetEndParameter

boolean isSetEndParameter()

Returns whether the value of the 'End Parameter' attribute is set.

Returns:

whether the value of the 'End Parameter' attribute is set.

See Also:

unsetEndParameter(), getEndParameter(), setEndParameter(double)