Class ShapeReader

Hierarchy: Object , ShapeReader

public class ShapeReader

Converts a Java2D Shape or the more general PathIterator into a Geometry.

The coordinate system for Java2D is typically screen coordinates, which has the Y axis inverted relative to the usual JTS coordinate system. This is rectified during conversion.

PathIterators to be converted are expected to be linear or flat. That is, they should contain only SEG_MOVETO, SEG_LINETO, and SEG_CLOSE segment types. Any other segment types will cause an exception.

Authors:: Martin Davis

public ShapeReader(GeometryFactory geometryFactory)

public static Geometry read(PathIterator pathIt, GeometryFactory geomFact)

Converts a flat path to a Geometry.

Parameters:: pathIt - pathIt the path to convert; geomFact - geomFact the GeometryFactory to use

Returns:: a Geometry representing the path

public static Geometry read(Shape shp, double flatness, GeometryFactory geomFact)

Converts a Shape to a Geometry, flattening it first.

Parameters:: shp - shp the Java2D shape; flatness - flatness the flatness parameter to use; geomFact - geomFact the GeometryFactory to use

Returns:: a Geometry representing the shape

public Geometry read(PathIterator pathIt)

Converts a flat path to a Geometry.

Parameters:: pathIt - pathIt the path to convert

Returns:: a Geometry representing the path

public static List toCoordinates(PathIterator pathIt)

Extracts the points of the paths in a flat PathIterator into a list of Coordinate arrays.

Parameters:: pathIt - pathIt a path iterator

Returns:: a List of Coordinate arrays

Throws:: IllegalArgumentException - IllegalArgumentException if a non-linear segment type is encountered