Class TLcdGML31AbstractCurveSegment
 All Implemented Interfaces:
ILcdDataObject
,ILcdBounded
,ILcdCurve
,ILcdShape
,ILcdCloneable
,ILcdDeepCloneable
,ILcdFeatured
,ILcdSelfDescribedFeatured
,Serializable
,Cloneable
 Direct Known Subclasses:
TLcdGML31ArcByCenterPoint
,TLcdGML31ArcString
,TLcdGML31ArcStringByBulge
,TLcdGML31BSpline
,TLcdGML31Clothoid
,TLcdGML31CubicSpline
,TLcdGML31GeodesicString
,TLcdGML31LineStringSegment
,TLcdGML31OffsetCurve
 Since:
 10.0
 See Also:

Field Summary
Modifier and TypeFieldDescriptionstatic final TLcdDataProperty
Data property that maps to thenumDerivativeInterior
attribute.static final TLcdDataProperty
Data property that maps to thenumDerivativesAtEnd
attribute.static final TLcdDataProperty
Data property that maps to thenumDerivativesAtStart
attribute.Fields inherited from interface com.luciad.shape.ILcdCurve
INTERPOLATION_CIRCLE_BY_3POINTS, INTERPOLATION_CIRCLE_BY_CENTERPOINT, INTERPOLATION_CIRCULARARC_BY_3POINTS, INTERPOLATION_CIRCULARARC_BY_BULGE, INTERPOLATION_CIRCULARARC_BY_CENTERPOINT, INTERPOLATION_ELLIPTICAL, INTERPOLATION_GEODESIC, INTERPOLATION_LINEAR, INTERPOLATION_MIXED, INTERPOLATION_RHUMB

Constructor Summary
ConstructorDescription 
Method Summary
Modifier and TypeMethodDescriptionvoid
computePointSFCT
(double aParam, ILcd3DEditablePoint aPointSFCT) Computes a point of the curve, defined by the given parameter.boolean
contains2D
(double v, double v1) Checks whether thisILcdShape
contains the given point in the 2D space.boolean
contains2D
(ILcdPoint aILcdPoint) Checks whether thisILcdShape
contains the givenILcdPoint
in the 2D space.boolean
contains3D
(double v, double v1, double v2) Checks whether thisILcdShape
contains the given point in the 3D space.boolean
contains3D
(ILcdPoint aILcdPoint) Checks whether thisILcdShape
contains the givenILcdPoint
in the 3D space.Returns theILcdBounds
by which the geometry of thisILcdBounded
object is bounded.Retrieves the end point of the curve.double
Returns the angle of the curve's tangent at the end point, in degrees counterclockwise from the direction at 3 o'clock.Returns the focus point of thisILcdShape
.Returns the interpolation method used by this curve.double
getLength2D
(double aParam1, double aParam2) Returns the length between two points of the curve, defined by the given parameters.int
Returns the number of intersections between this curve and a line segment defined by the two specified points.long
Returns the value of the property that maps to thenumDerivativeInterior
attribute.long
Returns the value of the property that maps to thenumDerivativesAtEnd
attribute.long
Returns the value of the property that maps to thenumDerivativesAtStart
attribute.Retrieves the start point of the curve.double
Returns the angle of the curve's tangent at the start point, in degrees counterclockwise from the direction at 3 o'clock.double
getTangent2D
(double aParam) Returns the angle of the curve's tangent in the point defined by the given parameter, in degrees counterclockwise from the direction at 3 o'clock.void
setNumDerivativeInterior
(long aValue) Sets the value of the property that maps to thenumDerivativeInterior
attribute.void
setNumDerivativesAtEnd
(long aValue) Sets the value of the property that maps to thenumDerivativesAtEnd
attribute.void
setNumDerivativesAtStart
(long aValue) Sets the value of the property that maps to thenumDerivativesAtStart
attribute.Methods inherited from class com.luciad.datamodel.TLcdFeaturedDataObject
canSetFeature, getFeature, getFeature, getFeatureCount, getFeaturedDescriptor, setFeature, setFeature
Methods inherited from class com.luciad.datamodel.TLcdDataObject
clone, clone, getDataType, getValue, getValue, hasValue, hasValue, setValue, setValue, toString
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface com.luciad.util.ILcdCloneable
clone

Field Details

NUM_DERIVATIVE_INTERIOR_PROPERTY
Data property that maps to thenumDerivativeInterior
attribute. The possible values for this property are instances oflong
. 
NUM_DERIVATIVES_AT_END_PROPERTY
Data property that maps to thenumDerivativesAtEnd
attribute. The possible values for this property are instances oflong
. 
NUM_DERIVATIVES_AT_START_PROPERTY
Data property that maps to thenumDerivativesAtStart
attribute. The possible values for this property are instances oflong
.


Constructor Details

TLcdGML31AbstractCurveSegment
public TLcdGML31AbstractCurveSegment() 
TLcdGML31AbstractCurveSegment


Method Details

getStartPoint
Description copied from interface:ILcdCurve
Retrieves the start point of the curve.This is equivalent to
computePointSFCT(0)
. Specified by:
getStartPoint
in interfaceILcdCurve
 Returns:
 the start point of the curve

getEndPoint
Description copied from interface:ILcdCurve
Retrieves the end point of the curve.This is equivalent to
computePointSFCT(1)
. Specified by:
getEndPoint
in interfaceILcdCurve
 Returns:
 the end point of the curve

getStartTangent2D
public double getStartTangent2D()Description copied from interface:ILcdCurve
Returns the angle of the curve's tangent at the start point, in degrees counterclockwise from the direction at 3 o'clock.The tangent orientation is from the start point towards the rest of the shape.
This is the same as
getTangent2D(0)
. Specified by:
getStartTangent2D
in interfaceILcdCurve
 Returns:
 the curve's angle in the start point

getEndTangent2D
public double getEndTangent2D()Description copied from interface:ILcdCurve
Returns the angle of the curve's tangent at the end point, in degrees counterclockwise from the direction at 3 o'clock.The tangent orientation is from the end point, away from the curve before it.
This is the same as
getTangent2D(1)
. Specified by:
getEndTangent2D
in interfaceILcdCurve
 Returns:
 the curve's angle in the end point

getTangent2D
public double getTangent2D(double aParam) Description copied from interface:ILcdCurve
Returns the angle of the curve's tangent in the point defined by the given parameter, in degrees counterclockwise from the direction at 3 o'clock.The tangent orientation is from the point at parameter
aParam
towards the rest of the shape. The tangent at parameter 0 is the same as
ILcdCurve.getStartTangent2D()
.  The tangent at parameter 1 is the same as
ILcdCurve.getEndTangent2D()
.
 Specified by:
getTangent2D
in interfaceILcdCurve
 Parameters:
aParam
 a value of the closed interval [0,1] Returns:
 the curve's angle in the point defined by the given parameter
 The tangent at parameter 0 is the same as

getLength2D
public double getLength2D(double aParam1, double aParam2) Description copied from interface:ILcdCurve
Returns the length between two points of the curve, defined by the given parameters. When
aParam1 == aParam2
, the length is 0.  When
aParam1 == 0 and aParam2 == 1
, the length is the whole length of the curve.  When
aParam1 > aParam2
, the length is (aParam1 to 1
) + (0 to aParam2
).
 Specified by:
getLength2D
in interfaceILcdCurve
 Parameters:
aParam1
 a value of the closed interval [0,1]aParam2
 a value of the closed interval [0,1] Returns:
 the length of the curve.
 When

computePointSFCT
Description copied from interface:ILcdCurve
Computes a point of the curve, defined by the given parameter. At parameter 0, the point is the same as
ILcdCurve.getStartPoint()
.  At parameter 1, the point is the same as
ILcdCurve.getEndPoint()
.
 Specified by:
computePointSFCT
in interfaceILcdCurve
 Parameters:
aParam
 a value of the closed interval [0,1]aPointSFCT
 the point to store the computed curve point in
 At parameter 0, the point is the same as

getInterpolation
Description copied from interface:ILcdCurve
Returns the interpolation method used by this curve.A set of predefined constants are defined in this interface, which are used by the default
ILcdCurve
implementations provided by LuciadLightspeed.Custom implementations can define their own constants, and use them to interpret the interpolation of the curve.
 Specified by:
getInterpolation
in interfaceILcdCurve
 Returns:
 the interpolation method used by this curve.

getLineSegmentIntersectionCount
Description copied from interface:ILcdCurve
Returns the number of intersections between this curve and a line segment defined by the two specified points.This information can be used to perform containment calculations, if this curve is closed or if this curve is part of a composite closed curve. By determining the number of intersections between this curve and a line segment starting from a given point in a fixed direction, one can determine whether a point is located within the closed curve by using the evenodd rule.
 Specified by:
getLineSegmentIntersectionCount
in interfaceILcdCurve
 Parameters:
aP1
 the first point of the line segmentaP2
 the second point of the line segment Returns:
 the number of intersections between the curve and the line segment

getFocusPoint
Description copied from interface:ILcdShape
Returns the focus point of thisILcdShape
. Specified by:
getFocusPoint
in interfaceILcdShape
 Returns:
 the focus point of this
ILcdShape
.

contains2D
Description copied from interface:ILcdShape
Checks whether thisILcdShape
contains the givenILcdPoint
in the 2D space. Only the first two dimensions of theILcdShape
and theILcdPoint
are considered. Specified by:
contains2D
in interfaceILcdShape
 Parameters:
aILcdPoint
 theILcdPoint
to test. Returns:
 the boolean result of the containment test.
 See Also:

contains2D
public boolean contains2D(double v, double v1) Description copied from interface:ILcdShape
Checks whether thisILcdShape
contains the given point in the 2D space. Only the first two dimensions of theILcdShape
are considered. Specified by:
contains2D
in interfaceILcdShape
 Parameters:
v
 the x coordinate of the point.v1
 the y coordinate of the point. Returns:
 the boolean result of the containment test.

contains3D
Description copied from interface:ILcdShape
Checks whether thisILcdShape
contains the givenILcdPoint
in the 3D space. Specified by:
contains3D
in interfaceILcdShape
 Parameters:
aILcdPoint
 theILcdPoint
to test. Returns:
 the boolean result of the containment test.
 See Also:

contains3D
public boolean contains3D(double v, double v1, double v2) Description copied from interface:ILcdShape
Checks whether thisILcdShape
contains the given point in the 3D space. Specified by:
contains3D
in interfaceILcdShape
 Parameters:
v
 the x coordinate of the point.v1
 the y coordinate of the point.v2
 the z coordinate of the point. Returns:
 the boolean result of the containment test.

getBounds
Description copied from interface:ILcdBounded
Returns theILcdBounds
by which the geometry of thisILcdBounded
object is bounded.If the geometry does not allow retrieving valid bounds (for example a polyline with 0 points) the return value is unspecified. It is highly recommended to return an
undefined
bounds. You can create undefined bounds using the default constructors ofTLcdLonLatBounds
orTLcdXYBounds
. Specified by:
getBounds
in interfaceILcdBounded
 Returns:
 the
ILcdBounds
by which the geometry of thisILcdBounded
object is bounded.

getNumDerivativeInterior
public long getNumDerivativeInterior()Returns the value of the property that maps to thenumDerivativeInterior
attribute.The attribute "numDerivativesInterior" specifies the type of continuity that is guaranteed interior to the curve. The default value of "0" means simple continuity, which is a mandatory minimum level of continuity. This level is referred to as "C 0 " in mathematical texts. A value of 1 means that the function and its first derivative are continuous at the appropriate end point: "C 1 " continuity. A value of "n" for any integer means the function and its first n derivatives are continuous: "C n " continuity. NOTE: Use of these values is only appropriate when the basic curve definition is an underdetermined system. For example, line string segments cannot support continuity above C 0 , since there is no spare control parameter to adjust the incoming angle at the end points of the segment. Spline functions on the other hand often have extra degrees of freedom on end segments that allow them to adjust the values of the derivatives to support C 1 or higher continuity.
 Returns:
 the value of the
NUM_DERIVATIVE_INTERIOR_PROPERTY
property.

setNumDerivativeInterior
public void setNumDerivativeInterior(long aValue) Sets the value of the property that maps to thenumDerivativeInterior
attribute.The attribute "numDerivativesInterior" specifies the type of continuity that is guaranteed interior to the curve. The default value of "0" means simple continuity, which is a mandatory minimum level of continuity. This level is referred to as "C 0 " in mathematical texts. A value of 1 means that the function and its first derivative are continuous at the appropriate end point: "C 1 " continuity. A value of "n" for any integer means the function and its first n derivatives are continuous: "C n " continuity. NOTE: Use of these values is only appropriate when the basic curve definition is an underdetermined system. For example, line string segments cannot support continuity above C 0 , since there is no spare control parameter to adjust the incoming angle at the end points of the segment. Spline functions on the other hand often have extra degrees of freedom on end segments that allow them to adjust the values of the derivatives to support C 1 or higher continuity.
 Parameters:
aValue
 the value to set for theNUM_DERIVATIVE_INTERIOR_PROPERTY
property.

getNumDerivativesAtEnd
public long getNumDerivativesAtEnd()Returns the value of the property that maps to thenumDerivativesAtEnd
attribute.The attribute "numDerivativesAtEnd" specifies the type of continuity between this curve segment and its successor. If this is the last curve segment in the curve, one of these values, as appropriate, is ignored. The default value of "0" means simple continuity, which is a mandatory minimum level of continuity. This level is referred to as "C 0 " in mathematical texts. A value of 1 means that the function and its first derivative are continuous at the appropriate end point: "C 1 " continuity. A value of "n" for any integer means the function and its first n derivatives are continuous: "C n " continuity. NOTE: Use of these values is only appropriate when the basic curve definition is an underdetermined system. For example, line string segments cannot support continuity above C 0 , since there is no spare control parameter to adjust the incoming angle at the end points of the segment. Spline functions on the other hand often have extra degrees of freedom on end segments that allow them to adjust the values of the derivatives to support C 1 or higher continuity.
 Returns:
 the value of the
NUM_DERIVATIVES_AT_END_PROPERTY
property.

setNumDerivativesAtEnd
public void setNumDerivativesAtEnd(long aValue) Sets the value of the property that maps to thenumDerivativesAtEnd
attribute.The attribute "numDerivativesAtEnd" specifies the type of continuity between this curve segment and its successor. If this is the last curve segment in the curve, one of these values, as appropriate, is ignored. The default value of "0" means simple continuity, which is a mandatory minimum level of continuity. This level is referred to as "C 0 " in mathematical texts. A value of 1 means that the function and its first derivative are continuous at the appropriate end point: "C 1 " continuity. A value of "n" for any integer means the function and its first n derivatives are continuous: "C n " continuity. NOTE: Use of these values is only appropriate when the basic curve definition is an underdetermined system. For example, line string segments cannot support continuity above C 0 , since there is no spare control parameter to adjust the incoming angle at the end points of the segment. Spline functions on the other hand often have extra degrees of freedom on end segments that allow them to adjust the values of the derivatives to support C 1 or higher continuity.
 Parameters:
aValue
 the value to set for theNUM_DERIVATIVES_AT_END_PROPERTY
property.

getNumDerivativesAtStart
public long getNumDerivativesAtStart()Returns the value of the property that maps to thenumDerivativesAtStart
attribute.The attribute "numDerivativesAtStart" specifies the type of continuity between this curve segment and its predecessor. If this is the first curve segment in the curve, one of these values, as appropriate, is ignored. The default value of "0" means simple continuity, which is a mandatory minimum level of continuity. This level is referred to as "C 0 " in mathematical texts. A value of 1 means that the function and its first derivative are continuous at the appropriate end point: "C 1 " continuity. A value of "n" for any integer means the function and its first n derivatives are continuous: "C n " continuity. NOTE: Use of these values is only appropriate when the basic curve definition is an underdetermined system. For example, line string segments cannot support continuity above C 0 , since there is no spare control parameter to adjust the incoming angle at the end points of the segment. Spline functions on the other hand often have extra degrees of freedom on end segments that allow them to adjust the values of the derivatives to support C 1 or higher continuity.
 Returns:
 the value of the
NUM_DERIVATIVES_AT_START_PROPERTY
property.

setNumDerivativesAtStart
public void setNumDerivativesAtStart(long aValue) Sets the value of the property that maps to thenumDerivativesAtStart
attribute.The attribute "numDerivativesAtStart" specifies the type of continuity between this curve segment and its predecessor. If this is the first curve segment in the curve, one of these values, as appropriate, is ignored. The default value of "0" means simple continuity, which is a mandatory minimum level of continuity. This level is referred to as "C 0 " in mathematical texts. A value of 1 means that the function and its first derivative are continuous at the appropriate end point: "C 1 " continuity. A value of "n" for any integer means the function and its first n derivatives are continuous: "C n " continuity. NOTE: Use of these values is only appropriate when the basic curve definition is an underdetermined system. For example, line string segments cannot support continuity above C 0 , since there is no spare control parameter to adjust the incoming angle at the end points of the segment. Spline functions on the other hand often have extra degrees of freedom on end segments that allow them to adjust the values of the derivatives to support C 1 or higher continuity.
 Parameters:
aValue
 the value to set for theNUM_DERIVATIVES_AT_START_PROPERTY
property.
