Method getDy

src/org/opensourcephysics/display2d/GridData.java:196–196

Gets the change in y between grid rows moving from top to bottom. The change in y is usually negative because y values usually decrease as pixel coordinates increase from top to bottom on a computer screen. @return the change in y

()

   * @return the change in y
   */
  public double getDy();

  /**
   * Gets the x coordinate for the given index.