public class TLcdXYCircularArcByCenterPoint extends ALcd2DEditableShape implements ILcd2DEditableCircularArcByCenterPoint, ILcdCache
ILcd2DEditableCircularArcByCenterPoint in
the cartesian space.
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 |
|---|
TLcdXYCircularArcByCenterPoint()
Creates a new
TLcdXYCircularArcByCenterPoint with all parameters set to 0. |
TLcdXYCircularArcByCenterPoint(double aCenterX,
double aCenterY,
double aRadius,
double aStartAngle,
double aArcAngle)
Creates a new
TLcdXYCircularArcByCenterPoint with the specified parameters. |
TLcdXYCircularArcByCenterPoint(ILcd2DEditablePoint aCenter,
double aRadius,
double aStartAngle,
double aArcAngle)
Creates a new
TLcdXYCircularArcByCenterPoint with the specified parameters. |
| Modifier and Type | Method and Description |
|---|---|
void |
clearCache()
Clears the cache.
|
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)
Returns whether the given object has the same class and the same coordinates and parameters.
|
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. |
ILcdPoint |
getEndPoint()
Retrieves the end point of the curve.
|
double |
getEndTangent2D()
Returns the angle of the curve's tangent at the end point,
in degrees counterclockwise from the direction at 3 o'clock.
|
ILcdPoint |
getFocusPoint()
Returns the focus point of this
ILcdShape. |
String |
getInterpolation()
Returns the interpolation method used by this curve,
which is
ILcdCurve.INTERPOLATION_CIRCULARARC_BY_CENTERPOINT. |
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.
|
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.
|
double |
getStartTangent2D()
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.
|
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.
|
Object |
removeCachedObject(Object aKey)
Looks up and removes the cached Object corresponding to the given key.
|
void |
setArcAngle(double aArcAngle)
Sets the angle over which the arc extends (in degrees).
|
void |
setRadius(double aA)
Sets the circle's radius.
|
void |
setStartAngle(double aStartAngle)
Sets the start angle of the arc (in degrees).
|
String |
toString() |
void |
translate2D(double x,
double y)
Translates this
ILcd2DEditableShape from its current position over the given translation
vector in the 2D space. |
contains3D, move2D, move2Dcontains2D, contains3D, fromDomainObjectfinalize, getClass, notify, notifyAll, wait, wait, waitcontains2D, contains3D, contains3Dmove2D, move2Dpublic TLcdXYCircularArcByCenterPoint()
TLcdXYCircularArcByCenterPoint with all parameters set to 0.public TLcdXYCircularArcByCenterPoint(ILcd2DEditablePoint aCenter, double aRadius, double aStartAngle, double aArcAngle)
TLcdXYCircularArcByCenterPoint with the specified parameters.aCenter - the center of the arc.aRadius - the radius of the circle.aStartAngle - the start angle (in degrees, measured from 3 o'clock position, positive counter-clockwise).aArcAngle - the arc angle (in degrees, positive counter-clockwise).IllegalArgumentException - if the length of the semi-major axis or the semi-minor axis of
the ellipse on which this arc resides is negative.public TLcdXYCircularArcByCenterPoint(double aCenterX,
double aCenterY,
double aRadius,
double aStartAngle,
double aArcAngle)
TLcdXYCircularArcByCenterPoint with the specified parameters.aCenterX - the x coordinate of the center.aCenterY - the y coordinate of the center.aRadius - the radius of the circle.aStartAngle - the start angle (in degrees).aArcAngle - the sweep angle (in degrees).IllegalArgumentException - if the length of the semi-major axis or the semi-minor axis of
the ellipse on which this arc resides is negative.public ILcdPoint getCenter()
ILcdCircularArcILcdCircularArc.getCenter in interface ILcdCircularArcILcdCircularArc.public double getRadius()
ILcdCircularArcILcdCircularArc.getRadius in interface ILcdCircularArcILcdCircularArc.public void setRadius(double aA)
ILcd2DEditableCircularArcByCenterPointsetRadius in interface ILcd2DEditableCircularArcByCenterPointaA - the new radius.public double getStartAngle()
ILcdCircularArcILcdCircularArc (in degrees). The angle is
measured from 3 o'clock position, positive counter-clockwise.getStartAngle in interface ILcdCircularArcpublic void setStartAngle(double aStartAngle)
ILcd2DEditableCircularArcByCenterPointsetStartAngle in interface ILcd2DEditableCircularArcByCenterPointaStartAngle - the new start angle.public double getArcAngle()
ILcdCircularArcILcdCircularArc extends (in degrees). The angle
is positive counter-clockwise.getArcAngle in interface ILcdCircularArcpublic void setArcAngle(double aArcAngle)
ILcd2DEditableCircularArcByCenterPointsetArcAngle in interface ILcd2DEditableCircularArcByCenterPointaArcAngle - the new arc angle.public ILcdPoint getFocusPoint()
ILcdShapeILcdShape.getFocusPoint in interface ILcdShapeILcdShape.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 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 void translate2D(double x,
double y)
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 ILcd2DEditableShapex - the x coordinate of the translation vector.y - the y coordinate of the translation vector.public 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_CENTERPOINT.getInterpolation in interface ILcdCircularArcgetInterpolation in interface ILcdCircularArcByCenterPointgetInterpolation in interface ILcdCurveINTERPOLATION_CIRCULARARC_BY_CENTERPOINT.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)
public 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