Package noaa.coastwatch.render

Class PointFeatureOverlay<T extends PointFeatureSymbol>

java.lang.Object

noaa.coastwatch.render.EarthDataOverlay

noaa.coastwatch.render.LineOverlay

noaa.coastwatch.render.PolygonOverlay

noaa.coastwatch.render.PointFeatureOverlay<T>

All Implemented Interfaces:

Serializable, Cloneable, Comparable

public class PointFeatureOverlay<T extends PointFeatureSymbol>
extends PolygonOverlay

The PointFeatureOverlay class annotes a data view with symbols using data from a PointFeatureSource.

Since:

3.2.0

Author:

Peter Hollemans

See Also:

• Serialized Form

Field Summary

Fields inherited from class noaa.coastwatch.render.LineOverlay

drawingShadow

Fields inherited from class noaa.coastwatch.render.EarthDataOverlay

alpha, lastTrans, prepared

Constructor Summary

Constructors

Constructor	Description
PointFeatureOverlay(int layer, Stroke stroke, PointFeatureSource source, T symbol)	Constructs a new overlay.
PointFeatureOverlay(T symbol, PointFeatureSource source)	Constructs a new overlay.

Method Summary

Modifier and Type	Method	Description
Object	clone()
protected void	draw(Graphics2D g, EarthDataView view)	Draws the overlay graphics.
SelectionRuleFilter	getFilter()	Gets the feature filter being used in this overlay.
List<Feature>	getMatchingFeatures(EarthArea area)	Gets the matching point features in this overlay for the specified area.
Map<String,Object>	getMetadataAtPoint(Point point)	Gets the metadata at the specified point.
PointFeatureSource	getSource()	Gets the feature source for this overlay.
T	getSymbol()	Gets the point symbol.
boolean	hasMetadata()	Gets the metadata flag, true if the overlay has metadata associated with its rendered graphics, false if not.
protected void	prepare(Graphics2D g, EarthDataView view)	Prepares the overlay graphics prior to drawing.
void	setFilter(SelectionRuleFilter filter)	Sets the feature filter to use in this overlay.
void	setSymbol(T symbol)	Sets the point symbol.
String	toString()

Methods inherited from class noaa.coastwatch.render.PolygonOverlay

getColors, getFillColor, getFillColorWithAlpha, setFillColor

Methods inherited from class noaa.coastwatch.render.LineOverlay

clip, drawShadow, getDropShadow, getShadowColor, getStroke, render, setDropShadow, setStroke

Methods inherited from class noaa.coastwatch.render.EarthDataOverlay

compareTo, getAlphaVersion, getColor, getColorWithAlpha, getLayer, getName, getTransparency, getVisible, invalidate, isPrepared, needsPrepare, setColor, setLayer, setName, setTransparency, setVisible

Methods inherited from class java.lang.Object

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

Constructor Details

PointFeatureOverlay

public PointFeatureOverlay(int layer,
 Stroke stroke,
 PointFeatureSource source,
 T symbol)

Constructs a new overlay. The overlay drawing and fill color are determined from the symbol.

Parameters:

layer - the overlay layer number.

stroke - the stroke to use for vector paths.

source - the source for polygon data.

symbol - the symbol to use for each point feature.

PointFeatureOverlay

public PointFeatureOverlay(T symbol,
 PointFeatureSource source)

Constructs a new overlay. The layer number is initialized to 0 and the stroke to the default BasicStroke. The overlay drawing and fill color are determined from the symbol.

Parameters:

source - the source for polygon data.

symbol - the symbol to use for each point feature.

Method Details

clone

public Object clone()

Overrides:

clone in class EarthDataOverlay

getFilter

public SelectionRuleFilter getFilter()

Gets the feature filter being used in this overlay.

Returns:

the feature filter or null for no filtering.

setFilter

public void setFilter(SelectionRuleFilter filter)

Sets the feature filter to use in this overlay.

Parameters:

filter - the feature filter or null for no filtering.

getSymbol

public T getSymbol()

Gets the point symbol.

setSymbol

public void setSymbol(T symbol)

Sets the point symbol.

getSource

public PointFeatureSource getSource()

Gets the feature source for this overlay.

Returns:

the feature source.

getMatchingFeatures

public List<Feature> getMatchingFeatures(EarthArea area)

Gets the matching point features in this overlay for the specified area.

Parameters:

area - the earth area to use for features.

Returns:

the list of features that will be drawn when the overlay is rendered with a view that shows the same earth area as that specified.

Since:

3.3.2

prepare

protected void prepare(Graphics2D g,
 EarthDataView view)

Description copied from class: EarthDataOverlay

Prepares the overlay graphics prior to drawing.

Specified by:

prepare in class EarthDataOverlay

Parameters:

g - the graphics object for drawing.

view - the earth data view.

draw

protected void draw(Graphics2D g,
 EarthDataView view)

Description copied from class: EarthDataOverlay

Draws the overlay graphics.

Specified by:

draw in class EarthDataOverlay

Parameters:

g - the graphics object for drawing.

view - the earth data view.

hasMetadata

public boolean hasMetadata()

Description copied from class: EarthDataOverlay

Gets the metadata flag, true if the overlay has metadata associated with its rendered graphics, false if not. If true, the EarthDataOverlay.getMetadataAtPoint(java.awt.Point) may be used. By default this method returns false unless overridden by the child class.

Overrides:

hasMetadata in class EarthDataOverlay

Returns:

the metadata flag, true if supported or false if not.

See Also:

• EarthDataOverlay.getMetadataAtPoint(java.awt.Point)

getMetadataAtPoint

public Map<String,Object> getMetadataAtPoint(Point point)

Description copied from class: EarthDataOverlay

Gets the metadata at the specified point.

Overrides:

getMetadataAtPoint in class EarthDataOverlay

Parameters:

point - the point to get metadata for.

Returns:

the metadata at the specified point, or null if none is available.

toString

public String toString()

Overrides:

toString in class EarthDataOverlay