DIRECTORY CD, PWPins, Rope; OnionArc: CEDAR DEFINITIONS = BEGIN ROPE: TYPE = Rope.ROPE; Side: TYPE = PWPins.Side; Arc: TYPE = REF ArcRec; ArcRec: TYPE = RECORD [ rect: CD.Rect, -- this is the bounding rect of all components. The arc, whatever its thickness is, is included inside this bbox. segs: LIST OF Seg -- the metal2 segments, non sorted ]; Seg: -- PRIVATE -- TYPE = REF SegRec; SegRec: TYPE = RECORD [point1, point2: INT, side1, side2: Side]; -- always rotating in the direct direction. By convention, point1 is included but point2 is not. EmptyArc: PROC [rect: CD.Rect] RETURNS [arc: Arc]; Length: PROC [arc: Arc] RETURNS [length: INT _ 0]; ConnectSegBitToArc: PROC [min, max: INT, side: Side, arc: Arc] RETURNS [connection: Arc]; NotOverlapping: PROC [arc1, arc2: Arc, minDist: INT] RETURNS [notOverlapping: BOOL _ TRUE]; Union: PROC [arc1, arc2: Arc] RETURNS [union: Arc]; EachSegBitProc: TYPE = PROC [min, max: INT, side: Side]; EnumerateSegBits: PROC [arc: Arc, eachSegBit: EachSegBitProc]; END. JOnionArc.mesa Copyright c 1985 by Xerox Corporation. All rights reversed. Created by Bertrand Serlet, May 9, 1985 10:20:27 am PDT Last Edited by: Serlet, July 3, 1985 1:20:20 pm PDT The 2 arcs can be of different sizes The union is positionned to fit on the largest rect It is assumed that arc1 and arc2 do not overlap. ΚΚ˜– "Cedar" stylešœ™Jšœ Οmœ1™J˜Jšžœ˜——…—