elevationcolors.java

openmap java写的开源数字地图程序. 用applet实现,可以像google map 那样放大缩小地图.

// **********************************************************************
// 
// <copyright>
// 
//  BBN Technologies
//  10 Moulton Street
//  Cambridge, MA 02138
//  [phone]
// 
//  Copyright (C) BBNT Solutions LLC. All rights reserved.
// 
// </copyright>
// **********************************************************************
// 
// $Source: /cvs/distapps/openmap/src/openmap/com/bbn/openmap/omGraphics/grid/ElevationColors.java,v $
// $RCSfile: ElevationColors.java,v $
// $Revision: 1.2.2.2 $
// $Date: 2005/12/22 18:42:48 $
// $Author: dietrick $
// 
// **********************************************************************

package com.bbn.openmap.omGraphics.grid;

import java.awt.Color;
import com.bbn.openmap.proj.Length;

/**
 * An interface that the SlopeGenerator uses to get colors for
 * different elevations and slopes.
 */
public interface ElevationColors {

    /**
     * Get the Color for the given elevation, with the provided units.
     * The slope of the land, from the northwest to the southeast, is
     * provided.
     */
    public Color getColor(int elevation, Length units, double slope);

    /**
     * Get the int argb value for a given elevation, with the provided
     * units. The slope of the land, from the northwest to the
     * southeast, is provided in case that should matter.
     */
    public int getARGB(int elevation, Length units, double slope);
    
    /**
     * Get a colortable as an array of ints.
     */
    public int[] getColortable();

}