DefaultCostFunction.java

/*
Copyright 2010 Alexandre Gellibert 

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License. 
You may obtain a copy of the License at http://www.apache.org/licenses/
LICENSE-2.0 Unless required by applicable law or agreed to in writing, 
software distributed under the License is distributed on an "AS IS" 
BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 
implied. See the License for the specific language governing permissions 
and limitations under the License.
*/

package com.beoui.geocell.model;

import com.beoui.geocell.GeocellUtils;

/**
 * Default cost function used if no cost function is specified in Geocell.bestBboxSearchCells method.
 * 
 * @author Alexandre Gellibert <alexandre.gellibert@gmail.com>
 *
 */
public class DefaultCostFunction implements CostFunction {

	/*
	 * (non-Javadoc)
	 * @see com.beoui.utils.CostFunction#defaultCostFunction(int, int)
	 */
	public double defaultCostFunction(int numCells, int resolution) {
		return numCells > Math.pow(GeocellUtils.GEOCELL_GRID_SIZE, 2) ? Double.MAX_VALUE : 0;
	}
	
}