How to use

mxConnectionConstraint

in

com.mxgraph.view

/**
 * Constructs a new connection constraint for the given point and boolean
 * arguments.
 * 
 * @param point Optional mxPoint that specifies the fixed location of the point
 * in relative coordinates. Default is null.
 * @param perimeter Optional boolean that specifies if the fixed point should be
 * projected onto the perimeter of the terminal. Default is true.
 */
public mxConnectionConstraint(mxPoint point, boolean perimeter)
{
  setPoint(point);
  setPerimeter(perimeter);
}

return new mxConnectionConstraint(point, perimeter);

/**
 * Sets the connection constraint that describes the given connection point.
 * If no constraint is given then nothing is changed. To remove an existing
 * constraint from the given edge, use an empty constraint instead.
 * 
 * @param vertex Cell state that represents the vertex.
 * @param constraint Connection constraint that represents the connection point
 * constraint as returned by getConnectionConstraint.
 */
public mxPoint getConnectionPoint(mxCellState vertex,
    mxConnectionConstraint constraint)
{
  mxPoint point = null;
  if (vertex != null && constraint.point != null)
  {
    point = new mxPoint(vertex.getX() + constraint.getPoint().getX()
        * vertex.getWidth(), vertex.getY()
        + constraint.getPoint().getY() * vertex.getHeight());
  }
  if (point != null && constraint.perimeter)
  {
    point = view.getPerimeterPoint(vertex, point, false);
  }
  return point;
}

return new mxConnectionConstraint(point, perimeter);

/**
 * Constructs a new connection constraint for the given point and boolean
 * arguments.
 * 
 * @param point Optional mxPoint that specifies the fixed location of the point
 * in relative coordinates. Default is null.
 * @param perimeter Optional boolean that specifies if the fixed point should be
 * projected onto the perimeter of the terminal. Default is true.
 */
public mxConnectionConstraint(mxPoint point, boolean perimeter)
{
  setPoint(point);
  setPerimeter(perimeter);
}

new mxConnectionConstraint());

new mxConnectionConstraint());