org.squigle.layers
Class PolygonLabelMetaDataHandler

java.lang.Object
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  +--org.squigle.layers.MetaDataHandler
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        +--org.squigle.layers.PolygonLabelMetaDataHandler

public class PolygonLabelMetaDataHandler

extends MetaDataHandler

As a subclass of MetaDataHandler, PolygonLabelMetaDataHandler is registered to a PolygonLayer and is responsible for properly the labeling polygons of that layer It does so by averaging the midpoint of each polygon evaluated that has the same metadata, thus finding the centeral common points among the related polygons. The process step expects a Graphics object, and plots to the layer the "Label" column at the average points.

Constructor Summary

PolygonLabelMetaDataHandler(java.awt.Color fontColor)

Method Summary

void	evaluatePolygon(float[][] pg, int metaDataPointer) store polygon data and a pointer to its metaData for later evaluation

Methods inherited from class org.squigle.layers.MetaDataHandler

evaluateLine, evaluatePoint, evaluatePolygon, process, reset, setLayer

Methods inherited from class java.lang.Object

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

Constructor Detail

PolygonLabelMetaDataHandler

public PolygonLabelMetaDataHandler(java.awt.Color fontColor)

Method Detail

evaluatePolygon

public void evaluatePolygon(float[][] pg,
                            int metaDataPointer)

store polygon data and a pointer to its metaData for later evaluation

Parameters:

pg - polygon to be evaluated

metaDataPointer - the offset in the layers metaData ByteBuffer for this polygon