public class IlvMakeGradientInteractor extends IlvDragRectangleInteractor implements IlvImageComputation
IlvMakeGradientInteractor is an interactor used to create a
line of visibility.| Constructor and Description |
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IlvMakeGradientInteractor()
The default constructor.
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IlvMakeGradientInteractor(IlvInputStream stream)
The Stream constructor.
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| Modifier and Type | Method and Description |
|---|---|
short[] |
buildImage(IlvRasterProperties p,
IlvThreadMonitoringData monitorInfo,
IlvManager manager,
IlvGradientRasterStyle style)
Returns a table of pixel values computed for the parameter passed.
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IlvMapLayer |
createMapInsertionLayer()
Creates the map layer that will contain gradients.
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protected void |
createObject(IlvRect rect,
IlvMapLayer ml)
Creates the gradient object when the user finishes a rectangular
selection.
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protected String |
getActivityDescription()
Returns the activity description displayed in the thread monitor.
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protected String |
getDialogTitle()
Returns the settings dialog title.
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protected String |
getLayerName()
Returns the layer name to use when creating an image.
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protected static double |
getSlope(IlvManager manager,
double lon,
double lat,
double precision,
IlvEllipsoid el,
IlvAltitudeProvider provider)
Computes the slope at the specified point.
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IlvGradientRasterStyle |
makeStyle(IlvRasterAbstractReader r)
Creates a style for this reader.
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boolean |
mustReload(NamedPropertyEvent event)
Indicates if a named property change necessitates rebuilding the
raster data source.
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boolean |
mustReload(StyleEvent event)
Indicates if a specific style event necessitates rebuilding the raster
data source.
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void |
write(IlvOutputStream stream)
Writes the attributes of a persistent object.
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addRectangleDraggedListener, attach, detach, dragscroll, drawGhost, fireRectangleDraggedEvent, getCursor, getDraggedRectangle, getLineStyle, getRectangleAspectRatio, getStartDragModifier, getStartPoint, handleButtonDown, handleButtonDragged, handleButtonUp, isGridMode, isOpaqueMode, isRotationAllowed, isStartDragModifierDown, isXORGhost, processMouseEvent, processMouseMotionEvent, removeRectangleDraggedListener, setCursor, setGridMode, setLineStyle, setOpaqueMode, setRectangleAspectRatio, setRotationAllowed, setStartDragModifieradjustPointIfOutsideView, doAutoScroll, getMaximumScrollDistance, getScrollTiming, isProgressiveScroll, setMaximumScrollDistance, setProgressiveScroll, setScrollTiming, startDraggingScrollTimer, stopDraggingScrollTimeraddFocusListener, addKeyListener, addMouseListener, addMouseMotionListener, allowEnsureVisible, allowEnsureVisible, disableEvents, drawGhost, enableEvents, ensureVisible, ensureVisible, getManager, getManagerView, getTransformer, handleExpose, processEvent, processFocusEvent, processKeyEvent, removeFocusListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, setXORGhostpublic IlvMakeGradientInteractor()
public IlvMakeGradientInteractor(IlvInputStream stream)
stream - The stream to read from.protected String getLayerName()
public IlvMapLayer createMapInsertionLayer()
protected String getActivityDescription()
protected String getDialogTitle()
protected void createObject(IlvRect rect, IlvMapLayer ml)
rect - The manager coordinates of the rectangle selected.ml - The map layer to add the gradient to.public boolean mustReload(StyleEvent event)
mustReload in interface IlvMapLayerStyleControlevent - The event sent by the StyleListener instance installed
on the layer style.true is returned.public boolean mustReload(NamedPropertyEvent event)
mustReload in interface IlvMapLayerStyleControlevent - The event sent by the StyleListener instance
installed on the layer style.true is returned.public short[] buildImage(IlvRasterProperties p, IlvThreadMonitoringData monitorInfo, IlvManager manager, IlvGradientRasterStyle style)
The following code example shows how to implement this method:
IlvAltitudeProvider pr = IlvAltitudeProviderProperty.GetAltitudeProvider(manager);
int ncols = properties.getColumnPixelCount();
int nligs = properties.getLinePixelCount();
short pixels[] = new short[ncols * nligs];
monitorInfo.updateProgress(10);
for (int y = 0; y < nligs; y++) {
for (int x = 0; x < ncols; x++) {
double xlon = p.getX() + x * p.getHorizontalPixelDensity();
double ylat = p.getY() + y * p.getVerticalPixelDensity();
double slope = pr.getAltitude(manager, xlon, ylat, 0);
pixels[y * ncols + x] = (short) (slope);
}
}
monitorInfo.updateProgress(100);
return pixels;
buildImage in interface IlvImageComputationp - The raster properties of the image to create.monitorInfo - The thread monitoring reference.manager - The manager to create the image for.style - The style of the raster image.IlvImageComputation.buildImage(ilog.views.maps.raster.IlvRasterProperties, ilog.views.maps.raster.datasource.IlvThreadMonitoringData, ilog.views.IlvManager, ilog.views.maps.defense.terrain.IlvGradientRasterStyle)protected static double getSlope(IlvManager manager, double lon, double lat, double precision, IlvEllipsoid el, IlvAltitudeProvider provider)
manager - The manager to retrieve altitude from.lon - The longitude of the point.lat - The latitude of the point.precision - The precision of the image, that is, the size of each
pixel in meters.el - The ellipsoid to use when making distance computations.provider - The altitude provider. For optimization reasons this must
be the one used by the manager.public IlvGradientRasterStyle makeStyle(IlvRasterAbstractReader r)
r - The reader to be passed to the style constructor.IlvGradientRasterStyle instance that uses the
correct color model.public void write(IlvOutputStream stream)
write in interface IlvPersistentObjectstream - the output streamIlvPersistentObject.write(ilog.views.io.IlvOutputStream)© Copyright Rogue Wave Software, Inc. 1997, 2018. All Rights Reserved.