Class Summary 
AbstractDistanceMatcher 

AngleHistogramMatcher 
Matches geometries by comparing their "angle histograms". 
AreaFilterFCMatchFinder 
Speeds up processing by ignoring target and candidate features with areas
greater than a specified maximum or less than a specified minimum. 
BasicFCMatchFinder 
Applies a FeatureMatcher to each item in a FeatureCollection 
CentroidAligner 

CentroidDistanceMatcher 

ChainMatcher 
Composes several FeatureMatchers into one. 
CompactnessMatcher 
Uses (4 x pi x Area) / (Perimeter^2) as a shape characteristic. 
DisambiguatingFCMatchFinder 
Enforces a onetoone relationship between target features and
matched candidate features, in the returned result set. 
HausdorffDistanceMatcher 
Uses an approximation of the Hausdorff distance. 
Histogram 
Generic model for a bar graph. 
IndependentCandidateMatcher 
Base class of FeatureMatchers that compare the target to each candidate
in turn  the comparisons only use one candidate at a time. 
MatcherUtil 
Functions useful to FeatureMatchers in general. 
Matches 
A FeatureCollection that stores the "score" of each Feature. 
OverlapMatcher 

ScoreStretcher 
Rescales the scores output from another FeatureMatcher 
SymDiffMatcher 
Uses symmetric difference as the criterion for determining match scores. 
TargetUnioningFCMatchFinder 
An FCMatchFinder wrapper that also treats unions of adjacent target features
as themselves target features. 
TargetUnioningFCMatchFinder.CompositeFeature 

ThresholdFilter 
Filters out shapes with a score below a given value. 
TopMatchDisambiguatingFCMatchFinder 
Enforces a onetoone relationship between target features and
matched candidate features, in the returned result set. 
TopScoreFilter 
Filters out all shapes except the one with the top score. 
WeightedMatcher 
Runs multiple FeatureMatchers, and combines their scores using a weighted
average. 
WindowFilter 
Quickly filters out shapes that lie outside a given distance from the feature's
envelope. 