com.sun.electric.tool.routing

Class River

java.lang.Object

com.sun.electric.tool.routing.River

public class River
extends java.lang.Object

Class to do river routing.

River Routing takes two sets of parallel points (connectors, ports, etc) and routes wires between them. All wires are routed in a single layer with non intersecting lines.

                       p1        p2         p3      p4
                        |        |           |       |  /\ cell_off2
                       _|        |           |   ____|  \/
                      |          |           |  |
                    __|    ______|           |  |
                   |      |                  |  |
                   |   ___|      ____________|  |
                   |  |         | /\ pitch      |
                 __|  |      ___| \/____________|
  cell_off1 /\  |     |     |    <>|
            \/  |     |     |      |
               a1    a2    a3     a4
 

Restrictions:

• The distance between the ports (p1..pn) and (a1..an) is >= "pitch"
• The parameter "width" specifies the width of all wires
  The parameter "space" specifies the distance between wires
  pitch = 2*(width/2) + space = space + width

The sides:

                        SIDE3
       ________________________________________
       |  route  |                  |  route  |
     S |  right  |                  |  left   | S
     I | (last)  |   normal right   | (last)  | I
     D |_________|  and left route  |_________| D
     E |  route  |     (middle)     |  route  | E
     4 |  left   |                  |  right  | 2
       | (first) |                  | (first) |
       |_________|__________________|_________|
                        SIDE1
 

Constructor Summary

Constructors

Constructor and Description
River()

Method Summary

Modifier and Type	Method and Description
void	river(Cell cell, java.util.List<ArcInst> arcsToRoute) This is the public interface for River Routing when done in batch mode.
static void	riverRoute() MAIN CONTROL CODE

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

River

public River()

Method Detail

riverRoute

public static void riverRoute()

MAIN CONTROL CODE

river

public void river(Cell cell,
                  java.util.List<ArcInst> arcsToRoute)

This is the public interface for River Routing when done in batch mode.

Parameters:

cell - the cell to be River-routed.