Class TracePoint2D
- All Implemented Interfaces:
ITracePoint2D
,Serializable
,Cloneable
,Comparable<ITracePoint2D>
java.awt.Point2D.Double
who carries two further values: double scaledX
and
double scaledY
which allow the Chart2D
to cache the scaled values (between 0.0 and 1.0) without having to keep
a copy of the aggregators (ITrace2D
) complete tracepoints.
This avoids the necessity to care for the correct order of a set of scaled tracepoints copied for caching purposes. Especially in the
case of new TracePoint2D
instances added to a ITrace2D
instance managed by a Chart2D
there remains
no responsibility for sorting the cached copy. This allows that the managing Chart2D
may just rescale the newly added
tracepoint instead of searching for the correct order of the new tracepoint by value - comparisons of x and y: The
TracePoint2D
passed to the method traceChanged(Chart2DDataChangeEvent e)
coded in the argument is the original.
Why caching of scaled values for the coordinates?
This takes more RAM but else for every repaint()
invocation of the Chart2D
would force all tracepoints of all
traces to be rescaled again.
A TracePoint2D will inform it's listener of type ITrace
on changes of the internal values.
- Version:
- $Revision: 1.34 $
- Author:
- Achim Westermann Achim.Westermann@gmx.de
- See Also:
-
Nested Class Summary
Nested classes/interfaces inherited from class java.awt.geom.Point2D
Point2D.Double, Point2D.Float
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Field Summary
Fields inherited from class java.awt.geom.Point2D.Double
x, y
Fields inherited from interface info.monitorenter.gui.chart.ITracePoint2D
STATE_ADDED, STATE_CHANGED, STATE_REMOVED
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Constructor Summary
ConstructorsModifierConstructorDescriptionprotected
Intended for
only.TracePointProviderDefault
TracePoint2D
(double xValue, double yValue) Construct a TracePoint2D whose coords are initalized to (x,y). -
Method Summary
Modifier and TypeMethodDescriptionfinal boolean
addAdditionalPointPainter
(IPointPainter<?> additionalPointPainter) Adds a point painter that additionally (to the pointer painters of the trace (
)) paint this point.ITrace2D.getTracePainters()
clone()
Returns a cloned instance (deep copy).int
compareTo
(ITracePoint2D obj) boolean
final Set
<IPointPainter<?>> Returns the point painter that additionally (to the trace painter of the chart) paint this point.double
getEuclidDistance
(double xNormalized, double yNormalized) Returns the Euclid distance of this point's normalized values (
) to the given normalized coordinates.ITracePoint2D.getScaledX()
,ITracePoint2D.getScaledY()
Returns the listener trace connected to this trace point.double
getManhattanDistance
(double xNormalized, double yNormalized) Returns the Manhattan distance of this point's normalized values (
) to the given normalized coordinates.ITracePoint2D.getScaledX()
,ITracePoint2D.getScaledY()
double
Returns the Manhattan distance of this point to the given one.final double
final double
double
getX()
Returns the x value.double
getY()
Returns the y value.int
hashCode()
boolean
removeAdditionalPointPainter
(IPointPainter<?> pointPainter) Removes a point painter that additionally (to the pointer painters of the trace (
)) paint this point.ITrace2D.getTracePainters()
Set
<IPointPainter<?>> Removes all point painters that additionally (to the pointer painters of the trace (
)) paint this point.ITrace2D.getTracePainters()
void
setListener
(ITrace2D listener) AllowsITrace2D
instances to register (or de-register) themselves with this point to receive (or stop receiving) change information viaITrace2D.firePointChanged(ITracePoint2D, int)
events.void
setLocation
(double xValue, double yValue) This method overloads the method ofjava.awt.geom.Point2D.Double
to fire a property change event to listeners of the corresponding
instances via their methodITrace2D
(with int argument set toITrace2D.firePointChanged(ITracePoint2D, int)
).ITracePoint2D.STATE_CHANGED
final void
setScaledX
(double scaledX) Only intended for Chart2D!!!.final void
setScaledY
(double scaledY) Only intended for Chart2D!!!.toString()
Methods inherited from class java.awt.geom.Point2D
distance, distance, distance, distanceSq, distanceSq, distanceSq, setLocation
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Constructor Details
-
TracePoint2D
protected TracePoint2D()Intended for
only.TracePointProviderDefault
-
TracePoint2D
public TracePoint2D(double xValue, double yValue) Construct a TracePoint2D whose coords are initalized to (x,y).- Parameters:
xValue
- the x value to use.yValue
- the y value to use.
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Method Details
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addAdditionalPointPainter
Description copied from interface:ITracePoint2D
Adds a point painter that additionally (to the pointer painters of the trace (
)) paint this point.ITrace2D.getTracePainters()
No clone will be taken. Outside modifications of the argument later on will also affect this instances state!
Caution! This is a low level mechanism that is also used by the highlighting mechanism. It is being utilized by the
which will use some mouse motion listener to remove outdated highlighters and add highlighters to the new point in focus by taking the highlighter configured in the trace.Chart2D.enablePointHighlighting(boolean)
So to use point highlighting for traces you should not re-program it at this level but just use
andITrace2D.addPointHighlighter(IPointPainter)
Chart2D.enablePointHighlighting(boolean)
.- Specified by:
addAdditionalPointPainter
in interfaceITracePoint2D
- Parameters:
additionalPointPainter
- a point painter that will additionally (to the trace painter of the chart) paint this point.- Returns:
- true if this point painter was accepted (not contained before by
the means of
Comparable.compareTo(Object)
- See Also:
-
clone
Description copied from interface:ITracePoint2D
Returns a cloned instance (deep copy).- Specified by:
clone
in interfaceITracePoint2D
- Overrides:
clone
in classPoint2D
- Returns:
- a cloned instance (deep copy)
- See Also:
-
compareTo
- Specified by:
compareTo
in interfaceComparable<ITracePoint2D>
- See Also:
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equals
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getAdditionalPointPainters
Description copied from interface:ITracePoint2D
Returns the point painter that additionally (to the trace painter of the chart) paint this point.The original list is returned so painters may be added or removed (even all painters may be cleared).
- Specified by:
getAdditionalPointPainters
in interfaceITracePoint2D
- Returns:
- the point painters that additionally (to the trace painter of the chart) paint this point.
- See Also:
-
getEuclidDistance
public double getEuclidDistance(double xNormalized, double yNormalized) Description copied from interface:ITracePoint2D
Returns the Euclid distance of this point's normalized values (
) to the given normalized coordinates.ITracePoint2D.getScaledX()
,ITracePoint2D.getScaledY()
- Specified by:
getEuclidDistance
in interfaceITracePoint2D
- Parameters:
xNormalized
- the normalized x coordinate between 0 and 1.0 to measure the Euclid distance to.yNormalized
- the normalized y coordinate between 0 and 1.0 to measure the Euclid distance to.- Returns:
- the Euclid distance of this point's normalized values (
ITracePoint2D.getScaledX()
,ITracePoint2D.getScaledY()
- See Also:
-
getListener
Description copied from interface:ITracePoint2D
Returns the listener trace connected to this trace point.- Specified by:
getListener
in interfaceITracePoint2D
- Returns:
- the listener trace connected to this trace point.
- See Also:
-
getManhattanDistance
public double getManhattanDistance(double xNormalized, double yNormalized) Description copied from interface:ITracePoint2D
Returns the Manhattan distance of this point's normalized values (
) to the given normalized coordinates.ITracePoint2D.getScaledX()
,ITracePoint2D.getScaledY()
- Specified by:
getManhattanDistance
in interfaceITracePoint2D
- Parameters:
xNormalized
- the normalized x coordinate between 0 and 1.0 to measure the Manhattan distance to.yNormalized
- the normalized y coordinate between 0 and 1.0 to measure the Manhattan distance to.- Returns:
- the Manhattan distance of this point's normalized values (
ITracePoint2D.getScaledX()
,ITracePoint2D.getScaledY()
- See Also:
-
getManhattanDistance
Description copied from interface:ITracePoint2D
Returns the Manhattan distance of this point to the given one.- Specified by:
getManhattanDistance
in interfaceITracePoint2D
- Parameters:
point
- the point to measure the Manhattan distance to.- Returns:
- the Manhattan distance of this point to the given one.
- See Also:
-
getScaledX
public final double getScaledX()- Specified by:
getScaledX
in interfaceITracePoint2D
- Returns:
- the scaledX.
- See Also:
-
getScaledY
public final double getScaledY()- Specified by:
getScaledY
in interfaceITracePoint2D
- Returns:
- the scaledY.
- See Also:
-
getX
public double getX()Description copied from interface:ITracePoint2D
Returns the x value.- Specified by:
getX
in interfaceITracePoint2D
- Overrides:
getX
in classPoint2D.Double
- Returns:
- the x value.
- See Also:
-
getY
public double getY()Description copied from interface:ITracePoint2D
Returns the y value.- Specified by:
getY
in interfaceITracePoint2D
- Overrides:
getY
in classPoint2D.Double
- Returns:
- the y value.
- See Also:
-
hashCode
public int hashCode() -
setListener
Description copied from interface:ITracePoint2D
AllowsITrace2D
instances to register (or de-register) themselves with this point to receive (or stop receiving) change information viaITrace2D.firePointChanged(ITracePoint2D, int)
events.- Specified by:
setListener
in interfaceITracePoint2D
- Parameters:
listener
- The instance that will be informed about changes or null to deregister.- See Also:
-
setLocation
public void setLocation(double xValue, double yValue) Description copied from interface:ITracePoint2D
This method overloads the method ofjava.awt.geom.Point2D.Double
to fire a property change event to listeners of the corresponding
instances via their methodITrace2D
(with int argument set toITrace2D.firePointChanged(ITracePoint2D, int)
).ITracePoint2D.STATE_CHANGED
- Specified by:
setLocation
in interfaceITracePoint2D
- Overrides:
setLocation
in classPoint2D.Double
- Parameters:
xValue
- the new x-coordinate for this point.yValue
- the new y-coordinate for this point.- See Also:
-
setScaledX
public final void setScaledX(double scaledX) Description copied from interface:ITracePoint2D
Only intended for Chart2D!!!.- Specified by:
setScaledX
in interfaceITracePoint2D
- Parameters:
scaledX
- the scaledX to set- See Also:
-
setScaledY
public final void setScaledY(double scaledY) Description copied from interface:ITracePoint2D
Only intended for Chart2D!!!.- Specified by:
setScaledY
in interfaceITracePoint2D
- Parameters:
scaledY
- the scaledY to set- See Also:
-
toString
- Overrides:
toString
in classPoint2D.Double
- See Also:
-
removeAdditionalPointPainter
Description copied from interface:ITracePoint2D
Removes a point painter that additionally (to the pointer painters of the trace (
)) paint this point.ITrace2D.getTracePainters()
- Specified by:
removeAdditionalPointPainter
in interfaceITracePoint2D
- Parameters:
pointPainter
- a point painter that currently is used to additionally (to the trace painter of the chart) paint this point.- Returns:
- true if this point painter was removed (contained before by the
means of
Comparable.compareTo(Object)
- See Also:
-
removeAllAdditionalPointPainters
Description copied from interface:ITracePoint2D
Removes all point painters that additionally (to the pointer painters of the trace (
)) paint this point.ITrace2D.getTracePainters()
- Specified by:
removeAllAdditionalPointPainters
in interfaceITracePoint2D
- Returns:
- all instances that were used before this call.
- See Also:
-