show
Class GridDisplay

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--show.ComplexDisplay
                    |
                    +--show.GridDisplay

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable

public class GridDisplay

extends ComplexDisplay

shows the values of a complex function (handed over in a Complex[][] array) by transforming a grid

See Also:

Serialized Form

Inner Class Summary

class	GridDisplay.GridCanvas this inner class represents the canvas on which everything is drawn.
class	GridDisplay.MouseCoordinateReader an inner class to read out mouse coordinates and calculate the corresponding values

Inner classes inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Inner classes inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent

Field Summary

protected java.awt.Canvas	canvas initialize canvas as GridCanvas in getCanvas(), when called the first time
protected double	cellHeight the height of a single cell in (logical) pixels
protected double	cellWidth the width of a single cell in (logical) pixels
protected Complex[][]	complexValues needed here for output only
protected double	imagDif imagRange[1] - imagRange[0], needed for transformation
protected double[]	imagRange the range in imaginary direction, needs to be stored for transformation
protected GridDisplay.MouseCoordinateReader	mouseCoordinateReader store the mouselistener used by this class, so that the subclass can remove it by reference
protected double	realDif realRange[1] - realRange[0], needed for transformation
protected double[]	realRange the range in real direction, needs to be stored for transformation
protected java.awt.Label	showCoords1 a label showing the function value of the coordinate of the mouse
protected java.awt.Label	showCoords2 a label showing the coordinates of the mouse in complex numbers
protected java.awt.geom.AffineTransform	transform the affine transformation applied to the Complex-Data for projecting it on the screen, its inverse is used by the MouseCoordinateReader to calculate the Complex coordinates from physical screen-coordinates
protected double	viewImagDif the imaginary diff in the view
protected double[]	viewImagRange the range in view, initialized to imagRange
protected double	viewRealDif the real diff in the view
protected double[]	viewRealRange the range in view, initialized to imagRange

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

GridDisplay()

Method Summary

void	determineCellSize() sets the cellwidth and -height, determined by realDif and imagDif
void	determineTransform(int width, int height) sets the affine transformation, determined by window-size and function range
Complex	getOriginValue(Complex o) returns for a given function value f the approximate origin value (i.e. the value in the grid whose function value best matches f)
void	setRange(double[] realRange, double[] imagRange) sets the ranges for both real and imaginary direction
void	setValues(Complex[][] inValues) sets the calculated values, that need to be displayed
Complex	transformXY(int x, int y) returns a Complex number with points which have been transformed from integer-physical graphics coordinates to double logical space coordinates using the inverse Transformation of the one used in paint()

Methods inherited from class show.ComplexDisplay

setCalculator

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addNotify, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, isAncestorOf, layout, list, list, locate, minimumSize, paint, paintComponents, paramString, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setFont, setLayout, update, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, addPropertyChangeListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, getAccessibleContext, getBackground, getBounds, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocation, getLocationOnScreen, getName, getParent, getPeer, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isDisplayable, isDoubleBuffered, isEnabled, isFocusTraversable, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setForeground, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus

Methods inherited from class java.lang.Object

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

Field Detail

complexValues

protected Complex[][] complexValues

needed here for output only

realRange

protected double[] realRange

the range in real direction, needs to be stored for transformation

imagRange

protected double[] imagRange

the range in imaginary direction, needs to be stored for transformation

viewRealRange

protected double[] viewRealRange

the range in view, initialized to imagRange

viewImagRange

protected double[] viewImagRange

the range in view, initialized to imagRange

realDif

protected double realDif

realRange[1] - realRange[0], needed for transformation

imagDif

protected double imagDif

imagRange[1] - imagRange[0], needed for transformation

viewRealDif

protected double viewRealDif

the real diff in the view

viewImagDif

protected double viewImagDif

the imaginary diff in the view

showCoords1

protected java.awt.Label showCoords1

a label showing the function value of the coordinate of the mouse

showCoords2

protected java.awt.Label showCoords2

a label showing the coordinates of the mouse in complex numbers

canvas

protected java.awt.Canvas canvas

initialize canvas as GridCanvas in getCanvas(), when called the first time

transform

protected java.awt.geom.AffineTransform transform

the affine transformation applied to the Complex-Data for projecting it on the screen, its inverse is used by the MouseCoordinateReader to calculate the Complex coordinates from physical screen-coordinates

mouseCoordinateReader

protected GridDisplay.MouseCoordinateReader mouseCoordinateReader

store the mouselistener used by this class, so that the subclass can remove it by reference

cellWidth

protected double cellWidth

the width of a single cell in (logical) pixels

cellHeight

protected double cellHeight

the height of a single cell in (logical) pixels

Constructor Detail

GridDisplay

public GridDisplay()

Method Detail

determineCellSize

public void determineCellSize()

sets the cellwidth and -height, determined by realDif and imagDif

determineTransform

public void determineTransform(int width,
                               int height)

sets the affine transformation, determined by window-size and function range

transformXY

public Complex transformXY(int x,
                           int y)

returns a Complex number with points which have been transformed from integer-physical graphics coordinates to double logical space coordinates using the inverse Transformation of the one used in paint()

getOriginValue

public Complex getOriginValue(Complex o)

returns for a given function value f the approximate origin value (i.e. the value in the grid whose function value best matches f)

setRange

public void setRange(double[] realRange,
                     double[] imagRange)

sets the ranges for both real and imaginary direction

Overrides:

setRange in class ComplexDisplay

setValues

public void setValues(Complex[][] inValues)

Description copied from class: ComplexDisplay

sets the calculated values, that need to be displayed

Overrides:

setValues in class ComplexDisplay