ptolemy.plot
Class PlotApplet

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--java.awt.Panel
                    |
                    +--java.applet.Applet
                          |
                          +--ptolemy.plot.PlotApplet

Direct Known Subclasses:

HistogramApplet, PlotLiveApplet, PlotMLApplet, PxgraphApplet

public class PlotApplet

extends java.applet.Applet

An Applet that can plot data from a URL. The URL should be specified using the dataurl applet parameter. The formatting commands are included in the file with the the data. If no URL is given, then a sample plot is generated.

Version:

$Id: PlotApplet.java,v 1.40 1999/08/12 23:29:45 cxh Exp $

Author:

Edward A. Lee, Christopher Hylands

See Also:

PlotBox, Plot, Serialized Form

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Constructor Summary

PlotApplet()

Method Summary

protected void	_read(java.io.InputStream in) Read the specified stream.
protected void	_setPlotSize(int appletWidth, int appletHeight) Given the size of the applet, set the size of the plot.
java.lang.String	getAppletInfo() Return a string describing this applet.
java.lang.String[][]	getParameterInfo() Return information about parameters.
void	init() Initialize the applet.
PlotBox	newPlot() Create a new Plot object for the applet.
PlotBox	plot() Return the plot object to operate on.

Methods inherited from class java.applet.Applet

destroy, getAppletContext, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, isActive, newAudioClip, play, play, resize, resize, setStub, showStatus, start, stop

Methods inherited from class java.awt.Panel

addNotify

Methods inherited from class java.awt.Container

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

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, addPropertyChangeListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphics, getHeight, getInputContext, getInputMethodRequests, 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, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, remove, removeComponentListener, removeFocusListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, setBackground, setBounds, setBounds, setComponentOrientation, 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

Constructor Detail

PlotApplet

public PlotApplet()

Method Detail

getAppletInfo

public java.lang.String getAppletInfo()

Return a string describing this applet.

Overrides:

getAppletInfo in class java.applet.Applet

Returns:

A string describing the applet.

getParameterInfo

public java.lang.String[][] getParameterInfo()

Return information about parameters.

Overrides:

getParameterInfo in class java.applet.Applet

Returns:

A array of arrays giving parameter names, the type, and the default value or description.

init

public void init()

Initialize the applet. Read the applet parameters.

Overrides:

init in class java.applet.Applet

newPlot

public PlotBox newPlot()

Create a new Plot object for the applet. Derived classes can redefine this method to return a different type of plot object.

Returns:

A new instance of PlotBox.

plot

public PlotBox plot()

Return the plot object to operate on.

Returns:

The plot object associated with this applet.

_read

protected void _read(java.io.InputStream in)
              throws java.io.IOException

Read the specified stream. Derived classes may override this to support other file formats.

Parameters:

in - The input stream.

Throws:

java.io.IOException - If the stream cannot be read.

_setPlotSize

protected void _setPlotSize(int appletWidth,
                            int appletHeight)

Given the size of the applet, set the size of the plot. Derived classes may override this to allow room for other widgets below the plot.

Parameters:

appletWidth - The width of the applet.

appletHeight - The height of the applet.