ConstraintVertex

java.lang.Object
- org.meteoinfo.jts.triangulate.quadedge.Vertex
- - org.meteoinfo.jts.triangulate.ConstraintVertex

```
public class ConstraintVertex
extends Vertex
```
A vertex in a Constrained Delaunay Triangulation. The vertex may or may not lie on a constraint. If it does it may carry extra information about the original constraint.

Field Summary
- Fields inherited from class org.meteoinfo.jts.triangulate.quadedge.Vertex
  BEHIND, BETWEEN, BEYOND, DESTINATION, LEFT, ORIGIN, RIGHT

Constructor Summary

Constructors
Constructor Description

ConstraintVertex(Coordinate p)
Creates a new constraint vertex

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Object`	`getConstraint()`	Gets the external constraint object
`boolean`	`isOnConstraint()`	Tests whether this vertex lies on a constraint.
`protected void`	`merge(ConstraintVertex other)`	Merges the constraint data in the vertex `other` into this vertex.
`void`	`setConstraint(java.lang.Object constraint)`	Sets the external constraint information
`void`	`setOnConstraint(boolean isOnConstraint)`	Sets whether this vertex lies on a constraint.

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

Methods inherited from class org.meteoinfo.jts.triangulate.quadedge.Vertex
circleCenter, circumRadiusRatio, classify, equals, equals, getCoordinate, getX, getY, getZ, interpolateZ, interpolateZ, interpolateZValue, isCCW, isInCircle, leftOf, midPoint, rightOf, setZ, toString

- Constructor Detail
  - ConstraintVertex
```
public ConstraintVertex(Coordinate p)
```
    Creates a new constraint vertex
    
    Parameters:
    
    p - the location of the vertex
- Method Detail
  - setOnConstraint
```
public void setOnConstraint(boolean isOnConstraint)
```
    Sets whether this vertex lies on a constraint.
    
    Parameters:
    
    isOnConstraint - true if this vertex lies on a constraint
  - isOnConstraint
```
public boolean isOnConstraint()
```
    Tests whether this vertex lies on a constraint.
    
    Returns:
    
    true if the vertex lies on a constraint
  - setConstraint
```
public void setConstraint(java.lang.Object constraint)
```
    Sets the external constraint information
    
    Parameters:
    
    constraint - an object which carries information about the constraint this vertex lies on
  - getConstraint
```
public java.lang.Object getConstraint()
```
    Gets the external constraint object
    
    Returns:
    
    the external constraint object
  - merge
```
protected void merge(ConstraintVertex other)
```
    Merges the constraint data in the vertex other into this vertex. This method is called when an inserted vertex is very close to an existing vertex in the triangulation.
    
    Parameters:
    
    other - the constraint vertex to merge