// **********************************************************************
//
// <copyright>
//
// BBN Technologies
// 10 Moulton Street
// Cambridge, MA 02138
// (617) 873-8000
//
// Copyright (C) BBNT Solutions LLC. All rights reserved.
//
// </copyright>
// **********************************************************************
//
// $Source: /cvs/distapps/openmap/src/openmap/com/bbn/openmap/proj/EqualArc.java,v $
// $RCSfile: EqualArc.java,v $
// $Revision: 1.2 $
// $Date: 2004/10/14 18:06:22 $
// $Author: dietrick $
//
// **********************************************************************
package com.bbn.openmap.proj;
/**
* A designator interface to let layers know that a Projection is an
* Equal Arc projection, meaning that the variations in latitude and
* longitude are constant.
*/
public interface EqualArc extends Projection {
/**
* Returns the x pixel constant of the projection. This was
* calculated when the projection was created. Represents the
* number of pixels around the earth (360 degrees).
*/
public double getXPixConstant();
/**
* Returns the y pixel constant of the projection. This was
* calculated when the projection was created. Represents the
* number of pixels from 0 to 90 degrees.
*/
public double getYPixConstant();
}