public class TLcdLonLatCircularArcBy3Points extends ALcd2DEditableShape implements ILcd2DEditableCircularArcBy3Points, ILcdCache
ILcd2DEditableCircularArcBy3Points in the geodetic space.
In addition to the properties defined by ILcd2DEditableCircularArcBy3Points,
a TLcdLonLatCircularArcBy3Points has an ellipsoid on which it lives.
All longitude/latitude coordinates are expressed in degrees.
This class is thread-safe for concurrent read-only access of its contents. For read-write access, external locking must be used. Such locking is typically done at the model level.
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 and Description |
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TLcdLonLatCircularArcBy3Points()
Default constructor, initializing the three points at (0,0).
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TLcdLonLatCircularArcBy3Points(double aStartX,
double aStartY,
double aIntermediateX,
double aIntermediateY,
double aEndX,
double aEndY,
ILcdEllipsoid aEllipsoid)
Creates a new circular arc using the given point coordinates and ellipsis.
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TLcdLonLatCircularArcBy3Points(ILcdEllipsoid aEllipsoid)
Default constructor, initializing the three points at (0,0).
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TLcdLonLatCircularArcBy3Points(ILcdPoint aStartPoint,
ILcdPoint aIntermediatePoint,
ILcdPoint aEndPoint,
ILcdEllipsoid aEllipsoid)
Creates a new circular arc using the given points and ellipsis.
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| Modifier and Type | Method and Description |
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void |
clearCache()
Clears the cache.
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Object |
clone()
Creates and returns a copy of this object, by delegating to
Object.clone(). |
void |
computePointSFCT(double aParam,
ILcd3DEditablePoint aPointSFCT)
Computes a point of the curve, defined by the given parameter.
|
boolean |
contains2D(double aX,
double aY)
Checks whether this
ILcdShape contains the given point in
the 2D space. |
boolean |
equals(Object aObject)
An object is considered equal to this shape if it has the same class.
|
double |
getArcAngle()
Returns the angle over which this
ILcdCircularArc extends (in degrees). |
ILcdBounds |
getBounds()
Returns the
ILcdBounds by which the geometry of this ILcdBounded object
is bounded. |
Object |
getCachedObject(Object aKey)
Looks up and returns the cached Object corresponding to the given key.
|
ILcdPoint |
getCenter()
Returns the center of this
ILcdCircularArc. |
ILcdEllipsoid |
getEllipsoid() |
ILcdPoint |
getEndPoint()
Retrieves the end point of the curve.
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double |
getEndTangent2D()
Returns the angle of the curve's tangent at the end point,
in degrees counterclockwise from the direction at 3 o'clock.
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ILcdPoint |
getFocusPoint()
Returns the focus point of this
ILcdShape. |
ILcdPoint |
getIntermediatePoint()
Returns an intermediate point of this arc.
|
String |
getInterpolation()
Returns the interpolation method used by this curve,
which is
ILcdCurve.INTERPOLATION_CIRCULARARC_BY_3POINTS. |
double |
getLength2D(double aParam1,
double aParam2)
Returns the length between two points of the curve,
defined by the given parameters.
|
int |
getLineSegmentIntersectionCount(ILcdPoint aP1,
ILcdPoint aP2)
Returns the number of intersections between this curve and a line segment
defined by the two specified points.
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double |
getRadius()
Returns the radius of this
ILcdCircularArc. |
double |
getStartAngle()
Returns the start angle of this
ILcdCircularArc (in degrees). |
ILcdPoint |
getStartPoint()
Retrieves the start point of the curve.
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double |
getStartTangent2D()
Returns the angle of the curve's tangent at the start point,
in degrees counterclockwise from the direction at 3 o'clock.
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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.
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int |
hashCode()
The hash code of this shape is the hash code of its class, in order to
be consistent with the
ALcdShape.equals(Object) method. |
void |
insertIntoCache(Object aKey,
Object aObject)
Inserts a cache Object corresponding to the given key Object.
|
void |
moveEndPoint2D(double aX,
double aY)
Moves the end point to the given point in the 2D space.
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void |
moveIntermediatePoint2D(double aX,
double aY)
Moves the intermediate point to the given point in the 2D space.
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void |
moveStartPoint2D(double aX,
double aY)
Moves the start point to the given point in the 2D space.
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Object |
removeCachedObject(Object aKey)
Looks up and removes the cached Object corresponding to the given key.
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void |
setEllipsoid(ILcdEllipsoid aEllipsoid)
Sets the ellipsoid of this
TLcdLonLatCircularArcBy3Points. |
String |
toString() |
void |
translate2D(double aDeltaX,
double aDeltaY)
Translates this
ILcd2DEditableShape from its current position over the given translation
vector in the 2D space. |
void |
translateEndPoint2D(double aDeltaX,
double aDeltaY)
Translates the end point from its current position
over the given translation vector in the 2D space.
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void |
translateIntermediatePoint2D(double aDeltaX,
double aDeltaY)
Translates the intermediate point from its current position
over the given translation vector in the 2D space.
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void |
translateStartPoint2D(double aDeltaX,
double aDeltaY)
Translates the start point from its current position
over the given translation vector in the 2D space.
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contains3D, move2D, move2Dcontains2D, contains3D, fromDomainObjectfinalize, getClass, notify, notifyAll, wait, wait, waitcontains2D, contains3D, contains3Dmove2D, move2Dpublic TLcdLonLatCircularArcBy3Points()
setEllipsoid(com.luciad.geodesy.ILcdEllipsoid)
in order for the shape to be usable.public TLcdLonLatCircularArcBy3Points(ILcdEllipsoid aEllipsoid)
aEllipsoid - the ellipsoid on which this shape is defined.public TLcdLonLatCircularArcBy3Points(ILcdPoint aStartPoint, ILcdPoint aIntermediatePoint, ILcdPoint aEndPoint, ILcdEllipsoid aEllipsoid)
aStartPoint - the start point of the arcaIntermediatePoint - a point on the arc that is not the start nor the end pointaEndPoint - the end point of the arcaEllipsoid - the ellipsoid on which this shape is defined.public TLcdLonLatCircularArcBy3Points(double aStartX,
double aStartY,
double aIntermediateX,
double aIntermediateY,
double aEndX,
double aEndY,
ILcdEllipsoid aEllipsoid)
aStartX - X-coordinate of the arc's start pointaStartY - Y-coordinate of the arc's start pointaIntermediateX - X-coordinate of a point on the arc that is not the start nor the end pointaIntermediateY - Y-coordinate of a point on the arc that is not the start nor the end pointaEndX - X-coordinate of the arc's end pointaEndY - Y-coordinate of the arc's end pointaEllipsoid - the ellipsoid on which this shape is defined.public ILcdPoint getCenter()
ILcdCircularArcILcdCircularArc.getCenter in interface ILcdCircularArcILcdCircularArc.public double getRadius()
ILcdCircularArcILcdCircularArc.getRadius in interface ILcdCircularArcILcdCircularArc.public double getStartAngle()
ILcdCircularArcILcdCircularArc (in degrees). The angle is
measured from 3 o'clock position, positive counter-clockwise.getStartAngle in interface ILcdCircularArcpublic double getArcAngle()
ILcdCircularArcILcdCircularArc extends (in degrees). The angle
is positive counter-clockwise.getArcAngle in interface ILcdCircularArcpublic ILcdEllipsoid getEllipsoid()
TLcdLonLatCircularArcBy3Points.public void setEllipsoid(ILcdEllipsoid aEllipsoid)
TLcdLonLatCircularArcBy3Points.aEllipsoid - the new ellipsoid.public ILcdPoint getFocusPoint()
ILcdShapeILcdShape.getFocusPoint in interface ILcdShapeILcdShape.public boolean contains2D(double aX,
double aY)
ILcdShapeILcdShape contains the given point in
the 2D space. Only the first two dimensions of the ILcdShape
are considered.contains2D in interface ILcdShapeaX - the x coordinate of the point.aY - the y coordinate of the point.public ILcdBounds getBounds()
ILcdBoundedILcdBounds by which the geometry of this ILcdBounded 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
of TLcdLonLatBounds
or TLcdXYBounds.
getBounds in interface ILcdBoundedILcdBounds by which the geometry of this ILcdBounded object
is bounded.public void translate2D(double aDeltaX,
double aDeltaY)
ILcd2DEditableShapeILcd2DEditableShape from its current position over the given translation
vector in the 2D space. Only the first two dimensions of the ILcdShape are considered.
The third dimension is left unchanged.translate2D in interface ILcd2DEditableShapeaDeltaX - the x coordinate of the translation vector.aDeltaY - the y coordinate of the translation vector.public void moveStartPoint2D(double aX,
double aY)
ILcd2DEditableCircularArcBy3PointsILcdShape are considered.
The third dimension is left unchanged.moveStartPoint2D in interface ILcd2DEditableCircularArcBy3PointsaX - the x coordinate of the point.aY - the y coordinate of the point.public void moveEndPoint2D(double aX,
double aY)
ILcd2DEditableCircularArcBy3PointsILcdShape are considered.
The third dimension is left unchanged.moveEndPoint2D in interface ILcd2DEditableCircularArcBy3PointsaX - the x coordinate of the point.aY - the y coordinate of the point.public void moveIntermediatePoint2D(double aX,
double aY)
ILcd2DEditableCircularArcBy3PointsILcdShape are considered.
The third dimension is left unchanged.moveIntermediatePoint2D in interface ILcd2DEditableCircularArcBy3PointsaX - the x coordinate of the point.aY - the y coordinate of the point.public void translateStartPoint2D(double aDeltaX,
double aDeltaY)
ILcd2DEditableCircularArcBy3PointstranslateStartPoint2D in interface ILcd2DEditableCircularArcBy3PointsaDeltaX - the x coordinate of the translation vector.aDeltaY - the y coordinate of the translation vector.public void translateEndPoint2D(double aDeltaX,
double aDeltaY)
ILcd2DEditableCircularArcBy3PointstranslateEndPoint2D in interface ILcd2DEditableCircularArcBy3PointsaDeltaX - the x coordinate of the translation vector.aDeltaY - the y coordinate of the translation vector.public void translateIntermediatePoint2D(double aDeltaX,
double aDeltaY)
ILcd2DEditableCircularArcBy3PointstranslateIntermediatePoint2D in interface ILcd2DEditableCircularArcBy3PointsaDeltaX - the x coordinate of the translation vector.aDeltaY - the y coordinate of the translation vector.public ILcdPoint getIntermediatePoint()
ILcdCircularArcBy3PointsgetIntermediatePoint in interface ILcdCircularArcBy3Pointspublic ILcdPoint getStartPoint()
ILcdCurve
This is equivalent to computePointSFCT(0).
getStartPoint in interface ILcdCurvepublic ILcdPoint getEndPoint()
ILcdCurve
This is equivalent to computePointSFCT(1).
getEndPoint in interface ILcdCurvepublic double getStartTangent2D()
ILcdCurveThe tangent orientation is from the start point towards the rest of the shape.
This is the same as getTangent2D(0).
getStartTangent2D in interface ILcdCurvepublic double getEndTangent2D()
ILcdCurveThe tangent orientation is from the end point, away from the curve before it.
This is the same as getTangent2D(1).
getEndTangent2D in interface ILcdCurvepublic double getTangent2D(double aParam)
ILcdCurve
The tangent orientation is from the point at parameter aParam towards the rest of the shape.
ILcdCurve.getStartTangent2D().ILcdCurve.getEndTangent2D().getTangent2D in interface ILcdCurveaParam - a value of the closed interval [0,1]public double getLength2D(double aParam1,
double aParam2)
ILcdCurveaParam1 == aParam2, the length is 0.aParam1 == 0 and aParam2 == 1, the length is the whole length of the curve.aParam1 > aParam2, the length is (aParam1 to 1) + (0 to aParam2).getLength2D in interface ILcdCurveaParam1 - a value of the closed interval [0,1]aParam2 - a value of the closed interval [0,1]public String getInterpolation()
ILcdCurve.INTERPOLATION_CIRCULARARC_BY_3POINTS.getInterpolation in interface ILcdCircularArcgetInterpolation in interface ILcdCircularArcBy3PointsgetInterpolation in interface ILcdCurveINTERPOLATION_CIRCULARARC_BY_3POINTS.public void computePointSFCT(double aParam,
ILcd3DEditablePoint aPointSFCT)
ILcdCurveILcdCurve.getStartPoint().ILcdCurve.getEndPoint().computePointSFCT in interface ILcdCurveaParam - a value of the closed interval [0,1]aPointSFCT - the point to store the computed curve point inpublic void insertIntoCache(Object aKey, Object aObject)
ILcdCacheinsertIntoCache in interface ILcdCacheaKey - the key Object that will be used to identify the Object.
The key must therefore be a unique identifier, typically the caller
itself: insertIntoCache(this, ...).aObject - the Object to be cached.public Object getCachedObject(Object aKey)
ILcdCachegetCachedObject in interface ILcdCacheaKey - the key Object that was used for storing the cache Object.public Object removeCachedObject(Object aKey)
ILcdCacheremoveCachedObject in interface ILcdCacheaKey - the key Object that was used for storing the cache Object.public void clearCache()
ILcdCacheclearCache in interface ILcdCachepublic Object clone()
ALcdShapeObject.clone(). Extensions should delegate to this implementation
with super.clone(), in order to create an object instance of
the right type, with all fields copied. They then should explicitly
clone any non-primitive fields for which a deeper clone is required.clone in interface ILcdCloneableclone in class ALcdShapeObject.clone()public boolean equals(Object aObject)
ALcdShapepublic int hashCode()
ALcdShapeALcdShape.equals(Object) method.
Extensions should refine this implementation, based on their properties.public int getLineSegmentIntersectionCount(ILcdPoint aP1, ILcdPoint aP2)
ILcdCurveThis 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 even-odd rule.
getLineSegmentIntersectionCount in interface ILcdCurveaP1 - the first point of the line segmentaP2 - the second point of the line segment