| AffineTransform | An AffineTransform applies an affine transforms to a JTS Geometry. | 
| Angle | Utility functions for working with angles. | 
| CoordinateList | A CoordinateList is a list of Coordinates. | 
| CoordUtil | Utility functions for working with Coordinates. | 
| EnvelopeIntersector |  | 
| EnvelopeUtil | Utility functions for Envelopes. | 
| FeatureSegment | A FeatureSegment is a line segment contained in an edge of a feature | 
| GeometryFactoryUtil | Some utility functions not present in the JTS version of this class | 
| GeometryMicroscope | Magnifies a given area of a set of Geometry's. | 
| InteriorPointFinder | Find a reasonable point at which to label a Geometry. | 
| LineSegmentEnvelopeIntersector | Optimized code for spatial predicates
 between
 LineSegments andEnvelopes. | 
| LineSegmentUtil | Utility functions for LineSegments. | 
| MaxPrecisionOverlayOp | Increases the number of cases
 JTS overlay operations can handle without robustness errors
 by removing "excess" precision from the input geometries. | 
| MicroscopePointAdjuster | A MicroscopePointAdjuster takes some line segments and an envelope, and
 adjusts the points of the line segments within the envelope
 so that small differences are visible. | 
| SingleSegmentExpander | A heuristic used by Microscope to expand a single segment,
 while maintaining its orientation. |