edu.uci.ics.jung.visualization.transform.BidirectionalTransformer Maven / Gradle / Ivy

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/*
 * Copyright (c) 2005, The JUNG Authors
 * All rights reserved.
 *
 * This software is open-source under the BSD license; see either "license.txt"
 * or https://github.com/jrtom/jung/blob/master/LICENSE for a description.
 *
 * Created on Apr 16, 2005
 */

package edu.uci.ics.jung.visualization.transform;

import java.awt.geom.Point2D;

/**
 * Provides methods to map points from one coordinate system to another: graph to screen and screen
 * to graph.
 *
 * @author Tom Nelson
 */
public interface BidirectionalTransformer {

  /**
   * convert the supplied graph coordinate to the screen coordinate
   *
   * @param p graph point to convert
   * @return screen point
   */
  Point2D transform(Point2D p);

  Point2D transform(double x, double y);

  /**
   * convert the supplied screen coordinate to the graph coordinate.
   *
   * @param p screen point to convert
   * @return the graph point
   */
  Point2D inverseTransform(Point2D p);

  Point2D inverseTransform(double x, double y);
}