/* -*- tab-width: 4 -*-
*
* Electric(tm) VLSI Design System
*
* File: Segment.java
*
* Copyright (c) 2003, 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.generator.flag.router;
/** A line segment that makes up part of a route */
public class Segment implements Comparable {
public final Track track;
public final int trackNdx;
public double min, max;
public Segment(double xy1, double xy2, Track track, int trackNdx) {
this.min = Math.min(xy1, xy2);
this.max = Math.max(xy1, xy2);
this.track = track;
this.trackNdx = trackNdx;
}
public int compareTo(Object o) {
double delta = min - ((Segment)o).min;
return (int) Math.signum(delta);
}
public boolean isHorizontal() {return track.isHorizontal();}
public double getTrackCenter() {return track.getCenter();}
public double getSegmentMin() {return min;}
public double getSegmentMax() {return max;}
public void trim(double xy1, double xy2) {
double xyMin = Math.min(xy1, xy2);
double xyMax = Math.max(xy1, xy2);
//LayoutLib.error(xyMin<min || xyMax>max, "trim may not extend segment");
min = Math.max(min, xyMin);
max = Math.min(max, xyMax);
track.resort(this);
}
public String toString() {
return "center="+getTrackCenter()+" ["+min+", "+max+"]";
}
}