/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: BBMetric.java
* Written by Team 2: Jan Barth, Iskandar Abudiab
*
* This code has been developed at the Karlsruhe Institute of Technology (KIT), Germany,
* as part of the course "Multicore Programming in Practice: Tools, Models, and Languages".
* Contact instructor: Dr. Victor Pankratius (pankratius@ipd.uka.de)
*
* Copyright (c) 2010 Sun Microsystems and Static Free Software
*
* 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.placement.simulatedAnnealing1.metrics;
import com.sun.electric.tool.placement.PlacementFrame.PlacementNetwork;
import com.sun.electric.tool.placement.PlacementFrame.PlacementNode;
import com.sun.electric.tool.placement.PlacementFrame.PlacementPort;
import java.util.List;
/** Parallel Placement
**/
public class BBMetric {
private double currentScore;
private List<PlacementNetwork> allNetworks;
public BBMetric( List<PlacementNetwork> allNetworks ){
this.allNetworks = allNetworks;
}
public double getScore() {
currentScore = 0;
for (int i = 0; i < allNetworks.size(); i++) {
PlacementNetwork n = allNetworks.get(i);
currentScore += calculateBoundingBoxScore(n);
}
return currentScore;
}
protected double calculateBoundingBoxScore( PlacementNetwork n ) {
//base case
List<PlacementPort> l = n.getPortsOnNet();
if (l.size() == 0) return 0;
double xMin, xMax, yMin, yMax;
xMin = Double.MAX_VALUE;
xMax = Double.MIN_VALUE;
yMin = Double.MAX_VALUE;
yMax = Double.MIN_VALUE;
for (PlacementPort p: l) {
PlacementNode originalPlacementNode = p.getPlacementNode();
double movedX = 0, movedY = 0;
double x = movedX + originalPlacementNode.getPlacementX(); // + p.getRotatedOffX();
double y = movedY + originalPlacementNode.getPlacementY(); //+ p.getRotatedOffY() ;
if (x < xMin) {
xMin = x;
}
if (x > xMax) {
xMax = x;
}
if (y < yMin) {
yMin = y;
}
if (y > yMax) {
yMax = y;
}
}
double score = (xMax - xMin) + (yMax - yMin);
return score;
}
}