ConsistentPolygonRingChecker

java.lang.Object
- org.locationtech.jts.operation.overlay.ConsistentPolygonRingChecker

```
public class ConsistentPolygonRingChecker
extends java.lang.Object
```
Tests whether the polygon rings in a GeometryGraph are consistent. Used for checking if Topology errors are present after noding.

Version:

1.7

Field Summary

Fields
Modifier and Type Field Description

private PlanarGraph graph

private int LINKING_TO_OUTGOING

private int SCANNING_FOR_INCOMING

Constructor Summary

Constructors
Constructor Description

ConsistentPolygonRingChecker(PlanarGraph graph)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`check(int opCode)`	Tests whether the result geometry is consistent
`void`	`checkAll()`
`private java.util.List`	`getPotentialResultAreaEdges(DirectedEdgeStar deStar, int opCode)`
`private boolean`	`isPotentialResultAreaEdge(DirectedEdge de, int opCode)`
`private void`	`testLinkResultDirectedEdges(DirectedEdgeStar deStar, int opCode)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- graph
```
private PlanarGraph graph
```
- SCANNING_FOR_INCOMING
```
private final int SCANNING_FOR_INCOMING
```
  See Also:
  
  Constant Field Values
- LINKING_TO_OUTGOING
```
private final int LINKING_TO_OUTGOING
```
  See Also:
  
  Constant Field Values

Constructor Detail

ConsistentPolygonRingChecker

public ConsistentPolygonRingChecker(PlanarGraph graph)

Method Detail

checkAll
```
public void checkAll()
```

check
```
public void check(int opCode)
```
Tests whether the result geometry is consistent

Throws:

TopologyException - if inconsistent topology is found

getPotentialResultAreaEdges

private java.util.List getPotentialResultAreaEdges(DirectedEdgeStar deStar,
                                                   int opCode)

isPotentialResultAreaEdge

private boolean isPotentialResultAreaEdge(DirectedEdge de,
                                          int opCode)

testLinkResultDirectedEdges

private void testLinkResultDirectedEdges(DirectedEdgeStar deStar,
                                         int opCode)