Package org.apache.lucene.geo

Interface Tessellator.Monitor

Enclosing class:

Tessellator

public static interface Tessellator.Monitor

Implementation of this interface will receive calls with internal data at each step of the triangulation algorithm. This is of use for debugging complex cases, as well as gaining insight into the way the algorithm works. Data provided includes a status string containing the current mode, list of points representing the current linked-list of internal nodes used for triangulation, and a list of triangles so far created by the algorithm.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	COMPLETED
static final String	FAILED

Method Summary

Modifier and Type	Method	Description
void	currentState(String status, List<Point> points, List<Tessellator.Triangle> tessellation)	Each loop of the main earclip algorithm will call this with the current state
void	endSplit(String status)	When a polygon split is completed, this is called.
void	startSplit(String status, List<Point> leftPolygon, List<Point> rightPolygon)	When a new polygon split is entered for mode=SPLIT, this is called.

Field Details

FAILED

static final String FAILED

See Also:

• Constant Field Values

COMPLETED

static final String COMPLETED

See Also:

• Constant Field Values

Method Details

currentState

void currentState(String status,
 List<Point> points,
 List<Tessellator.Triangle> tessellation)

Each loop of the main earclip algorithm will call this with the current state

startSplit

void startSplit(String status,
 List<Point> leftPolygon,
 List<Point> rightPolygon)

When a new polygon split is entered for mode=SPLIT, this is called.

endSplit

void endSplit(String status)

When a polygon split is completed, this is called.