case class QCurve(p1: R2 = R2 (0.0, 0.0), pc: R2 = R2 (0.0, 0.0), p2: R2 = R2 (0.0, 0.0), straight: Boolean = true) extends Double with CurvilinearShape with Product with Serializable
The QCurve class enhances the QuadCurve.Double class (from the java.awt.geom
package) by allowing entities to move along such quadratic curves as well as
lines. Although the curve could be developed as a quadratic function where
'y = ax2 + bx + c'. The following quadratic bezier formulation is used:
p(t) = (x(t), y(t)) = [(1-t)2 * p1] + [2 * (1-t) * t * pc] + [t^2 * p2].
- p1
the starting point for the quad curve
- pc
the control point for the quad curve
- p2
the ending point for the quad curve
- straight
whether the quad curve is straight (i.e., a line)
- Alphabetic
- By Inheritance
- QCurve
- Product
- Equals
- CurvilinearShape
- Error
- Double
- Serializable
- QuadCurve2D
- Cloneable
- Shape
- AnyRef
- Any
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- Public
- Protected
Instance Constructors
- new QCurve(p1: R2, pc: R2, p2: R2)
Construct a quad curve using an explicitly given control point.
Construct a quad curve using an explicitly given control point.
- p1
the starting point
- pc
the control point
- p2
the ending point
- new QCurve(p1: R2, p2: R2, bend: Double)
Construct a quad curve where bend indicates the distance to the control point.
Construct a quad curve where bend indicates the distance to the control point.
- p1
the starting point
- p2
the ending point
- bend
the bend or curvature (1. => line length)
- new QCurve(p1: R2, p2: R2)
Construct a straight line (degenerate quad curve).
Construct a straight line (degenerate quad curve).
- p1
the starting point
- p2
the ending point
- new QCurve(p1: R2 = R2 (0.0, 0.0), pc: R2 = R2 (0.0, 0.0), p2: R2 = R2 (0.0, 0.0), straight: Boolean = true)
- p1
the starting point for the quad curve
- pc
the control point for the quad curve
- p2
the ending point for the quad curve
- straight
whether the quad curve is straight (i.e., a line)
Value Members
- final def !=(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- final def ##: Int
- Definition Classes
- AnyRef → Any
- final def ==(arg0: Any): Boolean
- Definition Classes
- AnyRef → Any
- var _traj: Double
Trajectory parameter t ranges from 0.
Trajectory parameter t ranges from 0. to 1. (indicates how far along the curve)
- final def asInstanceOf[T0]: T0
- Definition Classes
- Any
- def clone(): AnyRef
- Definition Classes
- QuadCurve2D → AnyRef
- def contains(arg0: Rectangle2D): Boolean
- Definition Classes
- QuadCurve2D → Shape
- def contains(arg0: Double, arg1: Double, arg2: Double, arg3: Double): Boolean
- Definition Classes
- QuadCurve2D → Shape
- def contains(arg0: Point2D): Boolean
- Definition Classes
- QuadCurve2D → Shape
- def contains(arg0: Double, arg1: Double): Boolean
- Definition Classes
- QuadCurve2D → Shape
- final def eq(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def eval(): R2
Given a value for the trajectory parameter 't' (in [0., 1.]) calculate the point on the curve using the Quadratic Bezier equation.
Given a value for the trajectory parameter 't' (in [0., 1.]) calculate the point on the curve using the Quadratic Bezier equation.
- See also
en.wikipedia.org/wiki/Bézier_curve#Quadratic_curves
- final def flaw(method: String, message: String): Unit
- Definition Classes
- Error
- def getBounds(): java.awt.Rectangle
- Definition Classes
- QuadCurve2D → Shape
- def getBounds2D(): Rectangle2D
- Definition Classes
- Double → Shape
- def getCenterX(): Double
Get the x-coordinate of the center of the line/curve.
Get the x-coordinate of the center of the line/curve.
- Definition Classes
- QCurve → CurvilinearShape
- def getCenterY(): Double
Get the y-coordinate of the center of the line/curve.
Get the y-coordinate of the center of the line/curve.
- Definition Classes
- QCurve → CurvilinearShape
- final def getClass(): Class[_ <: AnyRef]
- Definition Classes
- AnyRef → Any
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- def getControl: R2
Get the control point of the quad curve.
- def getCtrlPt(): Point2D
- Definition Classes
- Double → QuadCurve2D
- def getCtrlX(): Double
- Definition Classes
- Double → QuadCurve2D
- def getCtrlY(): Double
- Definition Classes
- Double → QuadCurve2D
- def getFirst(width: Double, height: Double): R2
Get the first/start point of the quad curve, adjusted from top-left to center coordinates.
Get the first/start point of the quad curve, adjusted from top-left to center coordinates.
- width
the width of object traversing the curve
- height
the height of object traversing the curve
- def getFirst: R2
Get the first/start point of the quad curve.
- def getFlatness(): Double
- Definition Classes
- QuadCurve2D
- def getFlatnessSq(): Double
- Definition Classes
- QuadCurve2D
- def getLast(width: Double, height: Double): R2
Get the last/end-point of the quad curve, adjusted from top-left to center coordinates.
Get the last/end-point of the quad curve, adjusted from top-left to center coordinates.
- width
the width of object traversing the curve
- height
the height of object traversing the curve
- def getLast: R2
Get the last/end-point of the quad curve.
- def getP1(): Point2D
- Definition Classes
- Double → QuadCurve2D
- def getP2(): Point2D
- Definition Classes
- Double → QuadCurve2D
- def getPathIterator(arg0: AffineTransform, arg1: Double): PathIterator
- Definition Classes
- QuadCurve2D → Shape
- def getPathIterator(arg0: AffineTransform): PathIterator
- Definition Classes
- QuadCurve2D → Shape
- def getX1(): Double
- Definition Classes
- Double → QuadCurve2D
- def getX2(): Double
- Definition Classes
- Double → QuadCurve2D
- def getY1(): Double
- Definition Classes
- Double → QuadCurve2D
- def getY2(): Double
- Definition Classes
- Double → QuadCurve2D
- def intersects(arg0: Rectangle2D): Boolean
- Definition Classes
- QuadCurve2D → Shape
- def intersects(arg0: Double, arg1: Double, arg2: Double, arg3: Double): Boolean
- Definition Classes
- QuadCurve2D → Shape
- final def isInstanceOf[T0]: Boolean
- Definition Classes
- Any
- def isSame(x: Double, y: Double, xe: Double, ye: Double, step: Double): Boolean
Whether ('x', 'y') and ('xe', 'ye') are essentially the same.
- def length: Double
Return the length of this
QCurve. - final def ne(arg0: AnyRef): Boolean
- Definition Classes
- AnyRef
- def next(width: Double, height: Double): R2
Return the next point on the quad curve (one step beyond current point) and adjust from top-left to center coordinates for the object traversing the curve based on its width and height.
Return the next point on the quad curve (one step beyond current point) and adjust from top-left to center coordinates for the object traversing the curve based on its width and height. Return null if 't > 1.0' (i.e., past end-point).
- width
the width of object traversing the curve
- height
the height of object traversing the curve
- Definition Classes
- QCurve → CurvilinearShape
- def next(): R2
Return the next point on the quad curve (one step beyond current point).
Return the next point on the quad curve (one step beyond current point). Return null if 't > 1.0' (i.e., past end-point).
- final def notify(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- final def notifyAll(): Unit
- Definition Classes
- AnyRef
- Annotations
- @native() @HotSpotIntrinsicCandidate()
- var p1: R2
- var p2: R2
- var pc: R2
- def productElementNames: Iterator[String]
- Definition Classes
- Product
- def setCurve(arg0: Double, arg1: Double, arg2: Double, arg3: Double, arg4: Double, arg5: Double): Unit
- Definition Classes
- Double → QuadCurve2D
- def setCurve(arg0: QuadCurve2D): Unit
- Definition Classes
- QuadCurve2D
- def setCurve(arg0: Array[Point2D], arg1: Int): Unit
- Definition Classes
- QuadCurve2D
- def setCurve(arg0: Point2D, arg1: Point2D, arg2: Point2D): Unit
- Definition Classes
- QuadCurve2D
- def setCurve(arg0: Array[Double], arg1: Int): Unit
- Definition Classes
- QuadCurve2D
- def setLine(_p1: R2, _pc: R2, _p2: R2): Unit
Set (or reset) the location for the
QCurveas a curve using an explicitly given control point.Set (or reset) the location for the
QCurveas a curve using an explicitly given control point.- _p1
the starting point
- _pc
the control point
- _p2
the ending point
- Definition Classes
- QCurve → CurvilinearShape
- def setLine(_p1: R2, _p2: R2, bend: Double): Unit
Set (or reset) the location for the
QCurveas a curve using bend to calculate the control point.Set (or reset) the location for the
QCurveas a curve using bend to calculate the control point.- _p1
the starting point
- _p2
the ending point
- bend
the bend or curvature (1. => line-length)
- Definition Classes
- QCurve → CurvilinearShape
- def setLine(_p1: R2, _p2: R2): Unit
Set (or reset) the location for the
QCurveas a line.Set (or reset) the location for the
QCurveas a line.- _p1
the starting point
- _p2
the ending point
- Definition Classes
- QCurve → CurvilinearShape
- def setSteps(_steps: Int): Unit
Set the number of steps for tokens to take as move along the quad curve.
- var straight: Boolean
- def subdivide(arg0: QuadCurve2D, arg1: QuadCurve2D): Unit
- Definition Classes
- QuadCurve2D
- final def synchronized[T0](arg0: => T0): T0
- Definition Classes
- AnyRef
- def toString(): String
Show the start, control and end-points of the the
QCurve.Show the start, control and end-points of the the
QCurve.- Definition Classes
- QCurve → AnyRef → Any
- def traj: Double
Get the current trajectory '_traj' of the curve.
- def traj_=(traj: Double): Unit
Set the trajectory '_traj' to a new value.
Set the trajectory '_traj' to a new value.
- traj
the new trajectory for the curve
- final def wait(arg0: Long, arg1: Int): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException]) @native()
- final def wait(): Unit
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.InterruptedException])
Deprecated Value Members
- def finalize(): Unit
- Attributes
- protected[lang]
- Definition Classes
- AnyRef
- Annotations
- @throws(classOf[java.lang.Throwable]) @Deprecated
- Deprecated