com.bbn.openmap.layer.test
Class GeoCrossDemoLayer

java.lang.Object
  java.awt.Component
      java.awt.Container
          javax.swing.JComponent
              com.bbn.openmap.Layer
                  com.bbn.openmap.layer.OMGraphicHandlerLayer
                      com.bbn.openmap.layer.DrawingToolLayer
                          com.bbn.openmap.layer.editor.EditorLayer
                              com.bbn.openmap.layer.test.GeoCrossDemoLayer

All Implemented Interfaces:

ProjectionListener, Tool, GestureResponsePolicy, OMGraphicHandler, ProjectionPainter, PropertyConsumer, DrawingToolRequestor, java.awt.event.ActionListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.beans.beancontext.BeanContextChild, java.beans.beancontext.BeanContextMembershipListener, java.io.Serializable, java.util.EventListener

public class GeoCrossDemoLayer
extends EditorLayer

This layer was developed to provide a simple picture of how vector cross products work with Geos to solve intersection problems. The best way to use this class is to turn off all other layers and put the map in Orthographic projection. When the layer is active, a series of buttons will appear in the ToolPanel, allowing you to draw Great Circle lines. It's helpful to change the color of each line before you create it, so you can see the relationship of the line to the previous one drawn.

This layer will iterate through the list if drawn lines, looking for the intersection point between consecutive lines. For each line, a point will be drawn in that line's color representing the cross-normalized point for the line's enpoints - that is, it's the point perpendicular to the great circle plane created by the line. You can also think of it as the point that is 90 degrees away from every point on the line. The dotted lines are the path from the previous line's crossNornmalized point and the current line's crossNormalized point. Lastly, the cross-normalization of the end points of the dashed line will result in the point where the original lines would intersect if they are close enough. Depending on the direction that the lines were drawn, that point may actually be the antipode (on the other side of the sphere) of the point you are interested in, but this layer doesn't bother to investigate that yet.

That's all this layer does. The properties for this layer are:

          geocross.class=com.bbn.openmap.layer.test.GeoCrossDemoLayer
          geocross.prettyName=GEO Cross Demonstration
          geocross.editor=com.bbn.openmap.layer.editor.DrawingEditorTool
          geocross.showAttributes=true
          geocross.loaders=lines
          geocross.mouseModes=Gestures
          geocross.lines.class=com.bbn.openmap.tools.drawing.OMLineLoader
 

Author:

dietrick

See Also:

Serialized Form

Nested Class Summary

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

javax.swing.JComponent.AccessibleJComponent

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

java.awt.Container.AccessibleAWTContainer

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

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

Field Summary

protected OMGraphicList

lines

Fields inherited from class com.bbn.openmap.layer.editor.EditorLayer

editorTool, EditorToolProperty, elmm, orientation

Fields inherited from class com.bbn.openmap.layer.DrawingToolLayer

actions, box, dbfFactory, drawingAttributes, drawingTool, DTL_DEBUG, fileName, jcb, omGraphics, proxyMMM, SerializedURLNameProperty, showHints, ShowHintsProperty

Fields inherited from class com.bbn.openmap.layer.OMGraphicHandlerLayer

consumeEvents, ConsumeEventsProperty, filter, interruptable, InterruptableProperty, layerWorker, LAYERWORKER_LOCK, layerWorkerQueue, logger, mouseEventInterpreter, mouseModeIDs, MouseModesProperty, projectionChangePolicy, ProjectionChangePolicyProperty, renderPolicy, RenderPolicyProperty, selectedList, TransparencyProperty

Fields inherited from class com.bbn.openmap.Layer

addAsBackground, AddAsBackgroundProperty, addToBeanContext, AddToBeanContextProperty, attributes, autoPalette, AutoPaletteProperty, beanContextChildSupport, coordTransform, DataPathPrefixProperty, DisplayPaletteCmd, DisplayPropertiesCmd, doHack, HidePaletteCmd, i18n, localHackList, maxScale, MaxScaleProperty, minScale, MinScaleProperty, palette, paletteListener, PrettyNameProperty, propertyPrefix, readyToPaint, RedrawCmd, removable, RemovableProperty, SWING_PACKAGE, TransformProperty, windowSupport

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 com.bbn.openmap.PropertyConsumer

EditorProperty, initPropertiesProperty, LabelEditorProperty, ScopedEditorProperty

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

GeoCrossDemoLayer()

Method Summary

void	drawingComplete(OMGraphic omg, OMAction action) DrawingToolRequestor method.
OMGraphicList	prepare() This is the main method you should be concerned with when overriding this class.

Methods inherited from class com.bbn.openmap.layer.editor.EditorLayer

creatingOMGraphic, dispose, findAndInit, findAndUndo, getEditorTool, getFace, getKey, getMouseEventInterpreter, getMouseMode, getMouseModeIDsForEvents, getOrientation, setEditorTool, setKey, setMouseModeIDsForEvents, setName, setOrientation, setProperties, setVisible

Methods inherited from class com.bbn.openmap.layer.DrawingToolLayer

doIt, edit, getActions, getDbfFactory, getDrawingAttributes, getDrawingTool, getFileName, getGUI, getInfoText, getOMGraphics, getProperties, getPropertyInfo, getProxyMouseMode, getShowHints, getToolTipTextFor, isHighlightable, isSelectable, load, releaseProxyMouseMode, saveOMGraphics, select, setDbfFactory, setDrawingAttributes, setDrawingTool, setFileName, setOMGraphics, setProxyMouseMode, setShowHints, shouldEdit

Methods inherited from class com.bbn.openmap.layer.OMGraphicHandlerLayer

actionPerformed, canSetList, copy, createLayerWorker, cut, deselect, doAction, doPrepare, filter, filter, filter, getConsumeEvents, getDefaultSettingsPanel, getFilter, getItemsForMapMenu, getItemsForOMGraphicMenu, getLayerWorker, getList, getMapMouseListener, getProjectionChangePolicy, getRedrawButton, getRenderPolicy, getSelected, getSettingsButton, getTransparency, getTransparencyAdjustmentPanel, highlight, isCancelled, isInterruptable, isWorking, leftClick, mouseOver, paint, paste, projectionChanged, receivesMapEvents, renderDataForProjection, resetFiltering, setConsumeEvents, setFilter, setInterruptable, setLayerWorker, setList, setMouseEventInterpreter, setProjectionChangePolicy, setRenderPolicy, setTransparency, supportsSQL, unhighlight, workerComplete

Methods inherited from class com.bbn.openmap.Layer

addComponentListener, added, addInfoDisplayListener, addLayerStatusListener, addMouseListener, addVetoableChangeListener, childrenAdded, childrenRemoved, clearListeners, connectToBeanContext, createWindowSupport, disconnectFromBeanContext, finalize, findAndInit, fireHideToolTip, firePaletteEvent, fireRequestBrowserContent, fireRequestBrowserContent, fireRequestCursor, fireRequestInfoLine, fireRequestInfoLine, fireRequestInfoLine, fireRequestMessage, fireRequestMessage, fireRequestToolTip, fireRequestToolTip, fireRequestURL, fireRequestURL, fireStatusUpdate, fireStatusUpdate, fireVetoableChange, getAddAsBackground, getAddToBeanContext, getAttribute, getBeanContext, getCoordTransform, getIcon, getMaxScale, getMinScale, getPackage, getPalette, getProjection, getPropertyPrefix, getWindowSupport, hasGUI, hidePalette, isAutoPalette, isProjectionOK, isReadyToPaint, isRemovable, notifyHideHack, prependDataPathPrefix, putAttribute, removeComponentListener, removeConfirmed, removed, removeInfoDisplayListener, removeLayerStatusListener, removeVetoableChangeListener, repaint, resetPalette, setAddAsBackground, setAddToBeanContext, setAutoPalette, setBeanContext, setCoordTransform, setIcon, setLayerProperties, setMaxScale, setMinScale, setPaletteVisible, setProjection, setProjection, setProperties, setPropertyPrefix, setReadyToPaint, setRemovable, setWindowSupport, showPalette

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, 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, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, 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, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, paramString, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, 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, 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, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, 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, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setSize, setSize, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.bbn.openmap.tools.drawing.DrawingToolRequestor

getName

Methods inherited from interface java.beans.beancontext.BeanContextChild

addPropertyChangeListener, removePropertyChangeListener

Field Detail

lines

protected OMGraphicList lines

Constructor Detail

GeoCrossDemoLayer

public GeoCrossDemoLayer()

Method Detail

prepare

public OMGraphicList prepare()

Description copied from class: OMGraphicHandlerLayer

This is the main method you should be concerned with when overriding this class. You have to make sure that this method returns an OMGraphicList that is ready to be rendered. That means they need to be generated with the current projection, which can be retrieved by calling getProjection().

This method will be called in a separate thread if doPrepare() is called on the layer. This will automatically cause repaint() to be called, which lets java know to call paint() on this class.

Note that the default action of this method is to get the OMGraphicList as it is currently set in the layer, re-projects the list with the current projection (calls generate() on them), and then returns the current list.

If your layer needs to change what is on the list based on what the current projection is, you can either clear() the list yourself and add new OMGraphics to it (remember to call generate(Projection) on them), and return the list. You also have the option of setting a ListResetPCPolicy, which will automatically set the list to null when the projection changes before calling this method. The OMGraphicHandlerList will ignore a null OMGraphicList.

NOTE: If you call prepare directly, you may need to call repaint(), too. With all invocations of this method that are cause by a projection change, repaint() will be called for you. The method is synchronized in case renderDataForProjection() gets called while in the middle of this method. For a different projection, that would be bad.

Overrides:

prepare in class DrawingToolLayer

drawingComplete

public void drawingComplete(OMGraphic omg,
                            OMAction action)

Description copied from class: EditorLayer

DrawingToolRequestor method. It's actually pretty important to call EditorTool.drawingComplete() from here, too, if you create a subclass to EditorLayer. The EditorTool needs to know this to reset the drawing tool mouse mode, to get ready for another new OMGraphic if necessary.

Specified by:

drawingComplete in interface DrawingToolRequestor

Overrides:

drawingComplete in class EditorLayer