org.shapelogic.filter
Class PolygonSpatialPointFilter

java.lang.Object
  org.shapelogic.filter.BaseFilter<Polygon,IPoint2D>
      org.shapelogic.filter.PolygonPointFilter
          org.shapelogic.filter.PolygonSpatialPointFilter

All Implemented Interfaces:

org.apache.commons.collections.Predicate, IFilter<Polygon,IPoint2D>

Direct Known Subclasses:

PointAboveFilter, PointBelowFilter, PointLeftOfFilter, PointRightOfFilter

public abstract class PolygonSpatialPointFilter
extends PolygonPointFilter

Base class for all the spatially based point filters In order to get the cut off vale you need to know the bounding box for the polygon This is only know when the filter is actually run. So this is set in the setup method. The constraint should be between 0 and 1.

Author:

Sami Badawi

Field Summary

protected double	_constraintNumber
protected double	_limit

Fields inherited from class org.shapelogic.filter.BaseFilter

_collection, _constraint, _parent

Constructor Summary

PolygonSpatialPointFilter()

Method Summary

protected abstract double	coordinateChoser(IPoint2D diagonalVector)
void	setup()

Methods inherited from class org.shapelogic.filter.PolygonPointFilter

getCollection

Methods inherited from class org.shapelogic.filter.BaseFilter

evaluate, filter, getConstraint, getParent, setCollection, setConstraint, setParent

Methods inherited from class java.lang.Object

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

Field Detail

_limit

protected double _limit

_constraintNumber

protected double _constraintNumber

Constructor Detail

PolygonSpatialPointFilter

public PolygonSpatialPointFilter()

Method Detail

setup

public void setup()
           throws java.lang.Exception

Specified by:

setup in interface IFilter<Polygon,IPoint2D>

Overrides:

setup in class BaseFilter<Polygon,IPoint2D>

Throws:

java.lang.Exception

coordinateChoser

protected abstract double coordinateChoser(IPoint2D diagonalVector)