graph
Class G2Dint

java.lang.Object
  java.awt.Component
      java.awt.Canvas
          graph.Graph2D
              graph.G2Dint

All Implemented Interfaces:

javax.accessibility.Accessible, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable

public class G2Dint

extends Graph2D

This class is an extension of Graph2D class. It adds interactive selection of the plotting range and can display the mouse position in user coordinates.

Mouse Events

MouseDown

Starts the range selection

MouseDrag

Drag out a rectangular range selection

MouseUp

Replot with modified plotting range.

KeyDown Events

R

Redraw plot with default limits

r

Redraw plot using current limits

m

Pop window to enter manually plot range

c

Toggle pop-up window that displays the mouse position in user coordinates

d

Show coordinates of the closest data point to the cursor

D

Hide data coordinates pop-window

h

This key pressed in Any pop-window at any-time will hide it.

Note: To hide Any pop-window press the key h in the window. This will hide the window at any time. Depending on your windowing system the mouse button might have to be pressed in the popup window to ensure it has the keyboard focus.

Version:

$Revision: 1.9 $, $Date: 1996/07/02 06:01:12 $.

Author:

Leigh Brookshaw

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class java.awt.Canvas

java.awt.Canvas.AccessibleAWTCanvas

Nested classes inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

private Gin	cpgin Ths popup window for the cursor position command
private Gin	dpgin Ths popup window for the data point command
protected boolean	drag Set to true when a rectangle is being dragged out by the mouse
private Range	range The popup window to manually set the range
protected boolean	userlimits User limits.
private int	x0 Button Down position
private int	x1 Button Drag position
private int	x1old
protected Axis	xaxis Attached X Axis which must be registered with this class.
private int	y0 Button Down position
private int	y1 Button Drag position
private int	y1old
protected Axis	yaxis Attached Y Axis which must be registered with this class.

Fields inherited from class graph.Graph2D

axis, borderBottom, borderLeft, borderRight, borderTop, clearAll, DataBackground, datarect, dataset, drawgrid, drawzero, frame, framecolor, gridcolor, lastText, load_thread, loadingData, markers, paintAll, square, zerocolor

Fields inherited from class java.awt.Canvas

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

G2Dint()

Method Summary

boolean	action(java.awt.Event e, java.lang.Object a) Handle the Action Events.
void	attachAxis(Axis a) Attach axis to be used for the drag scaling.
Axis	createXAxis() Create Xaxis to be used for the drag scaling
Axis	createYAxis() Create Yaxis to be used for the drag scaling
protected double[]	getClosestPoint(int ix, int iy) Find the closest data point to the cursor
boolean	keyDown(java.awt.Event e, int key) Handle the Key Down events.
boolean	mouseDown(java.awt.Event e, int x, int y) Handle the Mouse Down events
boolean	mouseDrag(java.awt.Event e, int x, int y) Handle the Mouse Drag events
boolean	mouseMove(java.awt.Event e, int x, int y) Handle the Mouse Mouve events
boolean	mouseUp(java.awt.Event e, int x, int y) Handle the Mouse Up events
void	update(java.awt.Graphics g) New update method incorporating mouse dragging.

Methods inherited from class graph.Graph2D

attachDataSet, createAxis, detachAxes, detachAxis, detachDataSet, detachDataSets, drawAxis, drawFrame, finishedloading, ForceSquare, getDataRectangle, getMarkers, getXmax, getXmin, getYmax, getYmin, loadDataSet, loadFile, loadmessage, paint, paintBeforeData, paintFirst, paintLast, setDataBackground, setGraphBackground, setMarkers, startedloading

Methods inherited from class java.awt.Canvas

addNotify, createBufferStrategy, createBufferStrategy, getAccessibleContext, getBufferStrategy

Methods inherited from class java.awt.Component

add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, getAlignmentX, getAlignmentY, getBackground, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeys, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMinimumSize, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getPreferredSize, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusCycleRoot, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isOpaque, isShowing, isValid, isVisible, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseEnter, mouseExit, move, nextFocus, paintAll, paramString, postEvent, preferredSize, prepareImage, prepareImage, print, printAll, processComponentEvent, processEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeys, setFocusTraversalKeysEnabled, setFont, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle, validate

Methods inherited from class java.lang.Object

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

Field Detail

drag

protected boolean drag

Set to true when a rectangle is being dragged out by the mouse

userlimits

protected boolean userlimits

User limits. The user has set the limits using the mouse drag option

cpgin

private Gin cpgin

Ths popup window for the cursor position command

dpgin

private Gin dpgin

Ths popup window for the data point command

range

private Range range

The popup window to manually set the range

x0

private int x0

Button Down position

y0

private int y0

Button Down position

x1

private int x1

Button Drag position

y1

private int y1

Button Drag position

x1old

private int x1old

y1old

private int y1old

xaxis

protected Axis xaxis

Attached X Axis which must be registered with this class. This is one of the axes used to find the drag range. If no X axis is registered no mouse drag.

yaxis

protected Axis yaxis

Attached Y Axis which must be registered with this class. This is one of the axes used to find the drag range. If no Y axis is registered no mouse drag.

Constructor Detail

G2Dint

public G2Dint()

Method Detail

createXAxis

public Axis createXAxis()

Create Xaxis to be used for the drag scaling

createYAxis

public Axis createYAxis()

Create Yaxis to be used for the drag scaling

attachAxis

public void attachAxis(Axis a)

Attach axis to be used for the drag scaling. X axes are assumed to have Axis position Axis.BOTTOM or Axis.TOP. Y axes are assumed to have position Axis.LEFT or Axis.RIGHT.

Overrides:

attachAxis in class Graph2D

Parameters:

a - Axis to attach

See Also:

Axis

update

public void update(java.awt.Graphics g)

New update method incorporating mouse dragging.

Overrides:

update in class Graph2D

keyDown

public boolean keyDown(java.awt.Event e,
                       int key)

Handle the Key Down events.

Overrides:

keyDown in class Graph2D

mouseDown

public boolean mouseDown(java.awt.Event e,
                         int x,
                         int y)

Handle the Mouse Down events

mouseUp

public boolean mouseUp(java.awt.Event e,
                       int x,
                       int y)

Handle the Mouse Up events

mouseDrag

public boolean mouseDrag(java.awt.Event e,
                         int x,
                         int y)

Handle the Mouse Drag events

mouseMove

public boolean mouseMove(java.awt.Event e,
                         int x,
                         int y)

Handle the Mouse Mouve events

action

public boolean action(java.awt.Event e,
                      java.lang.Object a)

Handle the Action Events. This handler allows external classes (pop-up windows etc.) to communicate to this class asyncronously.

getClosestPoint

protected double[] getClosestPoint(int ix,
                                   int iy)

Find the closest data point to the cursor