jcckit.plot
Class AbstractSymbolFactory

java.lang.Object
  jcckit.plot.AbstractSymbolFactory

All Implemented Interfaces:

SymbolFactory

Direct Known Subclasses:

BarFactory, CircleSymbolFactory, SquareSymbolFactory

public abstract class AbstractSymbolFactory

extends java.lang.Object

implements SymbolFactory

Abstract superclass of all SymbolFactories. Subclasses have to implement createPlainSymbol().

Author:

Franz-Josef Elmer

Field Summary

protected GraphicAttributes	_attributes Attributes of all symbols.
protected double	_size Size of all symbols.

Fields inherited from interface jcckit.plot.SymbolFactory

ATTRIBUTES_KEY, DEFAULT_SIZE, SIZE_KEY

Constructor Summary

AbstractSymbolFactory(ConfigParameters config)
Creates an instance from the specified configuration parameters.

Method Summary

GraphicalElement	createLegendSymbol(GraphPoint centerPosition, double size) Creates a symbol for the legend at the specified position.
protected abstract GraphicalElement	createPlainSymbol(GraphPoint centerPosition, double size, GraphicAttributes attributes) Creates the graphical element of the plain symbol.
protected Symbol	createSymbol(GraphPoint point, GraphicAttributes attributes, Hint hintForNextPoint, Hint hintFromPreviousCurve) Creates a symbol.
Symbol	createSymbol(GraphPoint point, Hint hintFromPreviousPoint, Hint hintFromPreviousCurve) Creates a symbol.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

_size

protected final double _size

Size of all symbols.

_attributes

protected final GraphicAttributes _attributes

Attributes of all symbols.

Constructor Detail

AbstractSymbolFactory

public AbstractSymbolFactory(ConfigParameters config)

Creates an instance from the specified configuration parameters.

Key & Default Value	Type	Mandatory	Description
size = 0.01	double	no	Size of the symbol in device-independent units.
attributes	ConfigParameters	no	Configuration parameters for the attributes of the symbol. className has to be a class which is an instance of GraphicAttributes.

Method Detail

createSymbol

public Symbol createSymbol(GraphPoint point,
                           Hint hintFromPreviousPoint,
                           Hint hintFromPreviousCurve)

Creates a symbol. Evaluate hintFromPreviousPoint if it is a AttributesHint. Calls createSymbol(GraphPoint, GraphicAttributes, Hint, Hint).

Specified by:

createSymbol in interface SymbolFactory

Parameters:

point - Symbol position.

hintFromPreviousPoint - Hint from the previous point.

hintFromPreviousCurve - Hint from the previous curve.

createSymbol

protected Symbol createSymbol(GraphPoint point,
                              GraphicAttributes attributes,
                              Hint hintForNextPoint,
                              Hint hintFromPreviousCurve)

Creates a symbol. Uses createPlainSymbol().

Parameters:

point - Symbol position.

attributes - Symbol attributes.

hintForNextPoint - Hint for the next point. Will be delivered unchanged in the return Symbol object.

hintFromPreviousCurve - Hint from the previous curve. Will be delivered unchanged in the return Symbol object. Subclasses may override this behavior.

createLegendSymbol

public GraphicalElement createLegendSymbol(GraphPoint centerPosition,
                                           double size)

Creates a symbol for the legend at the specified position. Uses createPlainSymbol()

Specified by:

createLegendSymbol in interface SymbolFactory

Parameters:

centerPosition - Center position of the symbol.

size - The size of the symbol. Will be ignored because the value given in the constructor will be used.

createPlainSymbol

protected abstract GraphicalElement createPlainSymbol(GraphPoint centerPosition,
                                                      double size,
                                                      GraphicAttributes attributes)

Creates the graphical element of the plain symbol.

Parameters:

centerPosition - Center position of the symbol.

size - The size of the symbol.

attributes - The attributes of the symbol.