jview
Class JExpressionCanvas

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              jview.JNormalizedCanvas
                  jview.JViewportCanvas
                      jview.JFrameCanvas
                          jview.JBoxedCanvas
                              jview.JDataCanvas
                                  jview.JExpressionCanvas

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, DataCanvasProviding, NormalizedCoordinates, NormalizedShapes, UserCoordinates, Zoomable, Initializable, ResourceAware, ResourceComposed, Savable

public class JExpressionCanvas
extends JDataCanvas

An expression canvas allows manipulating of the data points before putting it onto the canvas. A global setting might be present via the KEY_GLOBALEXPRESSIONS property. Here, for each component in the input vector, an expression might be given, separated by commas. Empty expressions are treated as the identical expression. A per-setname setting may be present in the KEY_SETEXPRESSIONS property. Here, a propertisable mapping must used, colons separate a setname=expression entry.

For each data point put via the addMeasure(java.lang.String, vec_math.VectorG, java.lang.Object) or putMeasuredSet(java.lang.String, java.util.List, java.util.List) methods, first the individual expression is searched. If no expression is found, the global expression is used. If this is also not present, the identical transformation is used.

In each expression, the components of the vector are named as v#index, where index starts at zero (e.g. v#0 is the first vector component. Applications that want to provide some additional variables should override the getExternals() method. This method should return a mapping of variable names to (double) values.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class jview.JDataCanvas

JDataCanvas.AnimTest, JDataCanvas.Highlight, JDataCanvas.Histogram, JDataCanvas.Test, JDataCanvas.TestCanvas

Nested classes/interfaces inherited from class jview.JBoxedCanvas

JBoxedCanvas.Datum

Nested classes/interfaces inherited from class jview.JViewportCanvas

JViewportCanvas.ViewportKey

Nested classes/interfaces inherited from class jview.JNormalizedCanvas

JNormalizedCanvas.ShowImage

Nested classes/interfaces inherited from class javax.swing.JComponent

JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class java.awt.Container

Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

private Map<String,Number>	extern The external variables.
private List<String>	global The list of globale expressions.
private Map<String,List<String>>	individual The mapping of setnames to individual expressions.
static String	KEY_GLOBALEXPRESSIONS The global expressions, valid for all sets.
static String	KEY_SETEXPRESSIONS Expressions valid only for specific sets.
static String	VARID The string-id for vector components.

Fields inherited from class jview.JDataCanvas

DATALOSSPROPERTY, DEFXUSERSPACEMIN, DEFYUSERSPACEMIN, KEY_CONNECT, KEY_DATALAST, KEY_EQUALSCALE, KEY_EQUALSTART, KEY_ERRORALWAYSRED, KEY_ERRORCOLOR, KEY_ERRORHAT, KEY_ERRORHATLENGTH, KEY_ERRORINCLUDE, KEY_ERRORSHOW, KEY_FLIPXAXIS, KEY_FLIPYAXIS, KEY_HIGHLIGHTSHAPE, KEY_JOINDATA, KEY_LABELFONT, KEY_LEGEND, KEY_LEGENDGAP, KEY_LEGENDLENGTH, KEY_LEGENDLIST, KEY_LEGENDMAP, KEY_LEGENDY, KEY_POINTS, KEY_POLYGONSHAPE, KEY_RETAINSIZE, KEY_SAVESETS, KEY_SHAPESIZE, KEY_XAXISDISTANCE, KEY_XAXISLABEL, KEY_XERRORINDEX, KEY_XERRORSHAPE, KEY_XINDEX, KEY_XSHRINK, KEY_XUSERSPACEMIN, KEY_YAXISDISTANCE, KEY_YAXISLABEL, KEY_YERRORINDEX, KEY_YERRORSHAPE, KEY_YINDEX, KEY_YSHRINK, KEY_YUSERSPACEMIN, KEY_ZEROXAXIS, KEY_ZEROYAXIS, RESCALEPROPERTY, SAVEDATA

Fields inherited from class jview.JBoxedCanvas

AUTODATE, BOTTOM, KEY_FONT, KEY_GRIDCOLOR, KEY_IGNOREFORMAT, KEY_LABELAT, KEY_LABELCOLOR, KEY_LABELXANGLE, KEY_LABELXAUTO, KEY_LABELXEND, KEY_LABELXEXTRA, KEY_LABELXFORMAT, KEY_LABELXINSIDE, KEY_LABELXSTART, KEY_LABELXSTEP, KEY_LABELYANGLE, KEY_LABELYAUTO, KEY_LABELYEND, KEY_LABELYEXTRA, KEY_LABELYFORMAT, KEY_LABELYINSIDE, KEY_LABELYSTART, KEY_LABELYSTEP, KEY_MAXLABELS, KEY_MAXTICKS, KEY_TICKAT, KEY_TICKCOLOR, KEY_TICKSTRETCH, KEY_TICKXAUTO, KEY_TICKXEND, KEY_TICKXGRID, KEY_TICKXINSIDE, KEY_TICKXSIZE, KEY_TICKXSTART, KEY_TICKXSTEP, KEY_TICKYAUTO, KEY_TICKYEND, KEY_TICKYGRID, KEY_TICKYINSIDE, KEY_TICKYSIZE, KEY_TICKYSTART, KEY_TICKYSTEP, KEY_XISDATE, KEY_XLOGARITHMIC, KEY_YISDATE, KEY_YLOGARITHMIC, LEFT, RIGHT, TOP

Fields inherited from class jview.JFrameCanvas

KEY_ABSOLUTEHEIGHT, KEY_ABSOLUTEWIDTH, KEY_DRAWBOX, KEY_RELATIVEHEIGHT, KEY_RELATIVEWIDTH, KEY_TITLECOLOR, KEY_TITLEFONT, KEY_TITLEJUSTIFY, KEY_TITLEOFFSET, KEY_TITLETEXT, KEY_TOPCOLOR, KEY_TOPFONT, KEY_TOPJUSTIFY, KEY_TOPOFFSET, KEY_TOPSEPARATOR, KEY_TOPTEXT, KEY_XFRAME, KEY_XINSETABSOLUTE, KEY_XINSETRELATIVE, KEY_YFRAME, KEY_YINSETABSOLUTE, KEY_YINSETRELATIVE

Fields inherited from class jview.JViewportCanvas

MAXVIEW, VIEWPORTIMAGEPROPERTY, VIEWPORTPROPERTY

Fields inherited from class jview.JNormalizedCanvas

BACKGROUNDIMAGEPROPERTY, EXPORTACTION, GENERIC, inverse, KEY_BACKGROUND, KEY_CANVASNAME, KEY_CANVASTIP, KEY_CURSORCLASSES, KEY_CURSORPROPS, KEY_DRAWINGSETS, KEY_FOREGROUND, KEY_MAXIMUMHEIGHT, KEY_MAXIMUMWIDTH, KEY_MINIMUMHEIGHT, KEY_MINIMUMWIDTH, KEY_PREFERREDHEIGHT, KEY_PREFERREDWIDTH, KEY_PRINTFONT, KEY_PRINTFONTSCALE, KEY_PRINTSHAPESCALE, KEY_RESTORESHAPES, KEY_XFLIPIMAGE, KEY_YFLIPIMAGE, PRINTACTION, SAVEACTION, transform

Fields inherited from class javax.swing.JComponent

accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

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

JExpressionCanvas(ResourceSupplying prop)
Constructs a new expression canvas.

Method Summary

int	addMeasure(String setname, VectorG onepoint, Object key) Add a point specifying the set name instead of the set color.
private VectorG	calculate(String set, VectorG org, Map<String,Number> ext) Tries to calculate an expression for the given vector.
protected Map<String,Number>	getExternals() Returns null.
void	init() On init, parse the expressions from the properties.
int	putMeasuredSet(String setname, List<? extends VectorG> points, List<Object> keys) Sets a new list of data into the specified set.
protected void	setExternals(Map<String,Number> ms) Sets the external constants.

Methods inherited from class jview.JDataCanvas

addDataObserver, addDelete, addDrawingInfo, addJoint, addMeasure, addZoom, clearData, deleteClosest, deleteInside, drawShapes, extractKeys, extractKeys, getActions, getAnimationInfo, getClosestData, getClosestData, getClosestDataShape, getClosestShape, getComposingCanvases, getDefaultProperties, getInsideData, getInsideShapes, getMainCanvas, getMaximumPoints, getMeasuredData, getShapeForSet, getSpanX, getSpanY, getUserData, isEmpty, notifyClear, notifyNew, notifyOnAdd, notifyOnRemove, prepareCanvas, putMeasuredSet, putMeasuredSets, rebuildOneDataSet, redeemList, removeDataObserver, removeJoint, revertDeleted, setComposedProperties, setShapeForSet, setUserData

Methods inherited from class jview.JBoxedCanvas

getBestDateFormat, getDefaultFormatX, getDefaultFormatY, getUserTransformation, getUserTransformation, printComponent, setUserTransformation, setUserTransformation, silentlySelectViewport, xIsDate, yIsDate

Methods inherited from class jview.JFrameCanvas

calculateActiveCanvas, calculateShapeTransform, getArea, isScreenInNormalized, paintObjects, wasReshaped

Methods inherited from class jview.JViewportCanvas

addAttachedViewport, addZoom, getViewport, getViewportImage, isMaximalViewport, isNormalizedOnScreen, removeAttachedViewport, resetViewport, selectArea, selectViewport, setViewportImage, transferView

Methods inherited from class jview.JNormalizedCanvas

addCrossCursor, addDrawable, addDrawable, addDrawable, addLink, addLink, addPoint, addPoint, addText, addText, allInside, applyDrawingInfo, assignCursorLabel, clearAllDrawable, clearAllText, clearDrawable, clearText, createCanvasCursor, disabledCanvas, drawPoints, drawPointsMap, drawShapesMap, drawText, drawTextMap, firePropertyChange, getAllCanvasCursors, getBackground, getBackgroundImage, getCanvasCursor, getClosest, getClosest, getClosest, getComposedProperties, getFromName, getImageOperation, getInside, getInverseTransform, getLink, getLinkedTo, getMaximumSize, getMinimumSize, getNormalized, getNormalizedRect, getPreferredSize, getSaveBuffer, getScreen, getScreenRect, getShapeTransform, isFlipX, isFlipY, paintComponent, paintPointsList, paintShapesList, paintTextList, removeDrawable, removeDrawable, removeLink, removeText, removeText, repaintLater, repaintNow, setBackgroundImage, setBounds, setComplete, setCursor, setCursor, setDrawable, setImageOperation, setLink, setPrepare, startAnimation, stopAnimation

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getAccessibleContext, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getNextFocusableComponent, getPopupLocation, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintImmediately, paintImmediately, paramString, print, printAll, printBorder, printChildren, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update, updateUI

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusBackward, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setComponentOrientation, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Methods inherited from interface jview.NormalizedCoordinates

getArea, getNormalized, getNormalizedRect, getScreen, getScreenRect, getViewport, isNormalizedOnScreen, isScreenInNormalized

Field Detail

VARID

public static final String VARID

The string-id for vector components.

See Also:

Constant Field Values

KEY_GLOBALEXPRESSIONS

public static final String KEY_GLOBALEXPRESSIONS

The global expressions, valid for all sets.

See Also:

Constant Field Values

KEY_SETEXPRESSIONS

public static final String KEY_SETEXPRESSIONS

Expressions valid only for specific sets.

See Also:

Constant Field Values

global

private List<String> global

The list of globale expressions.

individual

private Map<String,List<String>> individual

The mapping of setnames to individual expressions.

extern

private Map<String,Number> extern

The external variables.

Constructor Detail

JExpressionCanvas

public JExpressionCanvas(ResourceSupplying prop)

Constructs a new expression canvas.

Method Detail

init

public void init()

On init, parse the expressions from the properties.

Specified by:

init in interface Initializable

Overrides:

init in class JDataCanvas

addMeasure

public int addMeasure(String setname,
                      VectorG onepoint,
                      Object key)

Add a point specifying the set name instead of the set color. If the set name is not found in our look-up table, the entry is ignored.

Overrides:

addMeasure in class JDataCanvas

putMeasuredSet

public int putMeasuredSet(String setname,
                          List<? extends VectorG> points,
                          List<Object> keys)

Sets a new list of data into the specified set.

Overrides:

putMeasuredSet in class JDataCanvas

getExternals

protected Map<String,Number> getExternals()

Returns null. Must be overriden, if the expressions used require additional data.

setExternals

protected void setExternals(Map<String,Number> ms)

Sets the external constants.

calculate

private VectorG calculate(String set,
                          VectorG org,
                          Map<String,Number> ext)

Tries to calculate an expression for the given vector.