/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: DataGrid.java
* Written by: Dennis Appelt, Sven Janko (Team 2)
*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
*
* Electric(tm) is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Electric(tm) is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Electric(tm); see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, Mass 02111-1307, USA.
*/
package com.sun.electric.tool.routing.experimentalLeeMoore3;
import java.util.HashMap;
import java.util.Map;
/**
* This class saves the rating for each coordinate. These ratings are the
* foundation for applying the Lee-Moore algorithm.
*/
public class DataGrid extends HashMap<Double, Map<Double, Rating>> {
private static final long serialVersionUID = -3003345240541850936L;
public DataGrid() {
}
/**
* Method to see if a particular point has been visited.
*
* @param x
* The x coordinate.
* @param y
* The y coordinate.
* @param z
* The metal layer.
* @return true, if point has been visited, false otherwise.
*/
public boolean isPointVisited(double x, double y) {
Map<Double, Rating> row = this.get(new Double(y));
if (row == null)
return false;
Rating r = row.get(new Double(x));
if (r == null)
return false;
return true;
}
/**
* Method to add a point to the map of visited points.
*
* @param x
* The x coordinate.
* @param y
* The y coordinate.
* @param z
* The metal layer.
* @param r
* The rating of the point.
*/
public void visit(double x, double y, Rating r) {
Double Y = new Double(y);
Map<Double, Rating> row = this.get(Y);
if (row == null) {
row = new HashMap<Double, Rating>();
this.put(Y, row);
}
row.put(new Double(x), r);
}
/**
* Method to get the rating of a specific grid point.
*
* @param x
* The x coordinate.
* @param y
* The y coordinate.
* @return The rating of the point.
*/
public Rating getRating(double x, double y) {
Map<Double, Rating> row = this.get(new Double(y));
if (row == null)
return null;
return row.get(new Double(x));
}
}